{ "data": { "a": { "slug": "growthbook", "name": "GrowthBook", "vendor": "GrowthBook, Inc.", "vendorUrl": "https://www.growthbook.io", "kind": "http-api", "category": "product-analytics", "summary": "GrowthBook is an open-source platform for feature flags, experiments and product analytics, sold as GrowthBook Cloud or run self-hosted. Agents reach it through a REST API with a public OpenAPI spec and an official MCP server.", "url": "https://www.anchorterminal.com/tools/growthbook", "markdownUrl": "https://www.anchorterminal.com/tools/growthbook.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/growthbook.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/growthbook.json", "dns": "growthbook.grade.anchorterminal.com", "repo": "https://github.com/growthbook/growthbook", "license": "MIT for the core and for the MCP server. Three enterprise directories in the main repository are under GrowthBook's enterprise licence. GrowthBook Cloud is a hosted service under the Customer Agreement", "transports": [ "http", "streamable-http", "stdio" ], "remoteUrl": "https://mcp.growthbook.io/mcp", "packages": [ { "registry": "npm", "name": "@growthbook/mcp" }, { "registry": "npm", "name": "@growthbook/growthbook" }, { "registry": "pypi", "name": "growthbook" } ], "auth": "mixed", "authNotes": "The hosted MCP server uses OAuth with PKCE, dynamic client registration, refresh tokens and a revocation endpoint, with api.growthbook.io as the authorisation server. A person signs in and consents in a browser. The only scopes are openid, profile, email and offline_access, so the token carries the user's own permissions. The REST API takes a Personal Access Token or a Secret Key as a Bearer token or as the HTTP Basic username. Both are self-serve in the app. A Secret Key can hold any built-in or custom role with per-project overrides and environment limits, and both key types can expire. On the Free plan members can only hold the Admin role.", "pricing": "freemium", "pricingNotes": "Starter is free with no card, for up to 3 users and 1 project, so an agent's owner can start without a contract. Pro is $40 a seat a month for up to 30 users. Enterprise is by contract. Flags, experiments and traffic are unlimited on every plan, and API and MCP calls are not billed. Pro meters CDN requests, CDN bandwidth and Managed Warehouse events above its allowance. Self-hosting the open-source edition is free (https://www.growthbook.io/pricing, checked 2026-10-08).", "priceSummary": "$40 / seat-mo", "where": "both", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs index, the OpenAPI spec, the MCP server source or the pricing page (checked 2026-10-08).", "endpoints": [] }, "toolCount": 4, "popularity": { "githubStars": 8484, "npmWeekly": 1290544, "pypiWeekly": 432892, "asOf": "2026-10-08" }, "docsUrl": "https://docs.growthbook.io", "llmsTxt": "https://docs.growthbook.io/llms.txt", "openapi": "https://api.growthbook.io/api/v1/openapi.yaml", "registryName": "io.github.growthbook/growthbook-mcp", "capabilities": [ "analytics.experiments", "analytics.flags", "analytics.query", "analytics.events" ], "tags": [ "official", "hosted", "open-source", "self-hosted", "mcp", "oauth", "openapi", "llms-txt", "free-tier", "no-card", "status-page", "soc2" ], "lastRelease": "2026-10-06", "graded": true, "anchor": { "graded": true, "score": 68.6, "grade": "B", "agentReady": false, "rank": 278, "ranked": true, "rankOf": 1486, "categoryRank": 5, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 76, "maintenance": 89, "payments": 40, "reliability": 86, "schema": 76, "security": 76, "transparency": 75 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-01" }, "negative": -6, "negativeNotes": [ "10 August 2026. MCP server 2.1.0 replaced `growthbook_call_api` with two tools in a minor version, eleven days after 2.0.0 removed every 1.x tool, while the docs tell users to install `@growthbook/mcp@latest`. Both are marked breaking in the changelog with migration steps, and we found no advance notice, so the deduction is the minimum (https://github.com/growthbook/growthbook-mcp/blob/main/CHANGELOG.md).", "13 to 30 October 2026. Security fixes merged into the main repository after GrowthBook 5.1.0 (21 September), the newest release, and in no release on 1 November. Commit 900a546b (#7172, 13 October) says the OAuth consent page's Deny button \"redirected to the raw redirect_uri query param with no server check\", so a `javascript:` redirect URI \"ran attacker script on the app origin after one click\", and dynamic client registration accepted `javascript:` and `data:` redirect URIs. Commit 106fc6a7 (#7519, 30 October) says `PUT /organization` let any org admin use `ownerEmail` as \"a regex oracle over every user's email across tenants\". `git tag --contains` finds neither in a release, and the consent page and the user lookup they fix are both in v5.1.0. One term at the floor for fixes in no release, as composio-rube and microsoft-execution-containers took, whatever their age. The repository's deploy workflow builds every push to main that touches `packages/` and rolls it to GrowthBook Cloud's production API services, so Cloud probably runs both fixes, though its run history wasn't readable. That doesn't lower the term. On Cloud they read as fixed, vendor-described flaws with no advisory, a script redirect on the app origin and a cross-tenant lookup, which this run deducts at -3 (terraform-mcp, spree-commerce). The two fold into one term, as claude-code's and claude-agent-sdk's repeated changelog-only security fixes fold into one. https://github.com/growthbook/growthbook/commit/900a546b1abbb3ed6d867146aa7ce8eed59af0e2 and https://github.com/growthbook/growthbook/commit/106fc6a75a749bb7234b705aa2ad43c2f28cc532 and https://github.com/growthbook/growthbook/blob/main/.github/workflows/deploy.yml" ], "verdict": "GrowthBook Cloud's MCP server has four annotated tools, OAuth whose consent page can grant read-only or confirmation-gated access, and a 442-operation OpenAPI spec behind it. The free plan needs no card. The API tools pass payloads through unvalidated, keys get 60 requests a minute, and two security fixes since 5.1.0 are unreleased.", "bestFor": "Teams that want flags and experiments analysed against their own warehouse, with an open-source core and a self-hosted option.", "strengths": [ "The MCP server has four tools, each with readOnlyHint and destructiveHint, and a second endpoint with only the two API tools", "OAuth consent can grant Read only, Human-in-the-Loop or custom permissions, and keys and tokens expire and rotate in place", "Human-in-the-Loop holds risky REST writes, MCP ones included, until a person confirms them, with each decision in the audit log", "Public OpenAPI 3.1 spec with 324 paths and 442 operations, plus llms.txt and a Markdown copy of every docs page", "Starter plan is free with no card, with unlimited flags, experiments and traffic for up to 3 users" ], "weaknesses": [ "The API tools take a path and a JSON string and don't validate payloads, so correct calls depend on the bundled skills", "Two security fixes merged in October 2026, an OAuth consent-page script redirect and a cross-tenant email oracle, are in no release", "API keys are limited to 60 requests a minute on Cloud, and no idempotency keys were found", "Confirmation and audit logs are on Enterprise only, and Free plan connections can only take Full access", "MCP 2.0.0 and 2.1.0 replaced the whole tool surface in July and August 2026, the second in a minor version" ], "agentNotes": [ "Connect to https://mcp.growthbook.io/mcp and complete OAuth in a browser. Ask for Read only at consent unless the task needs writes", "Call `growthbook_list_skills` and `growthbook_read_skill` before writing. The API tools don't validate payloads, so use the paths the skill names", "Expect a 202 with a confirmation link when Human-in-the-Loop holds a write. Tell the user and wait; a held request expires after an hour", "Stay under 60 requests a minute per key. On 429 wait for the `RateLimit-Reset` seconds before retrying", "List calls return 10 items by default. Pass `limit` up to 100 and `offset` to page" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 4, "avgRating": 3.3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 68.6 } ], "editorialScores": { "ergonomics": 76, "maintenance": 89, "payments": 40, "reliability": 86, "schema": 76, "security": 76, "transparency": 66 }, "provenanceScore": 84, "checked": { "categories": { "ergonomics": "2026-11-01", "maintenance": "2026-11-01", "payments": "2026-11-01", "reliability": "2026-11-01", "schema": "2026-11-01", "security": "2026-11-01", "transparency": "2026-11-01" }, "last": "2026-11-01", "lastMoved": "2026-11-01", "oldest": "2026-11-01", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "npx -y @growthbook/mcp@latest", "http": "curl https://api.growthbook.io/api/v1/features -H \"Authorization: Bearer secret_abc123DEF456\"", "claudeCode": "claude mcp add --transport http growthbook https://mcp.growthbook.io/mcp", "config": { "mcpServers": { "growthbook": { "url": "https://mcp.growthbook.io/mcp" } } } }, "letme": { "capability": "https://letme.dev/analytics.experiments", "tool": "https://letme.dev/growthbook" }, "area": "business", "unitPrices": [ { "item": "Pro plan seat", "unit": "seat-month", "usd": 40, "note": "Up to 30 users and 3 projects" }, { "item": "CDN requests", "unit": "1k-requests", "usd": 0.01, "note": "Pro plan, above 2 million a month ($10 per million)" }, { "item": "Managed Warehouse event", "unit": "tx", "usd": 0.00003, "note": "Pro plan, above 2 million a month ($30 per million)" }, { "item": "CDN bandwidth", "unit": "gb", "usd": 1, "note": "Pro plan, above 20 GB a month" } ], "provenance": { "legalEntity": "GrowthBook, Inc.", "domain": "growthbook.io", "domainRegistered": "2020-05-19", "endpointOnVendorDomain": true, "terms": "https://www.growthbook.io/legal/customer-agreement", "privacy": "https://www.growthbook.io/legal/privacy-notice", "statusPage": "https://status.growthbook.io", "changelog": "https://github.com/growthbook/growthbook/releases", "securityTxt": "none", "checked": "2026-11-01", "notes": [ "The Customer Agreement (effective 19 June 2025) is between the customer and GrowthBook, Inc., with notices to 1950 W Corporate Way #34560, Anaheim, CA 92801, under California law.", "The Privacy Notice (effective 8 June 2026) covers the website and related services and names GrowthBook, Inc. at the same address. The Customer Agreement refers to it for Customer Data.", "The MCP server answers at mcp.growthbook.io and the REST API at api.growthbook.io. OAuth metadata names https://api.growthbook.io as issuer.", "www.growthbook.io/.well-known/security.txt and growthbook.io/.well-known/security.txt return 404 (re-read 1 November 2026). Reports go to a form on the disclosure page or to security@growthbook.io.", "RDAP for growthbook.io gives a registration date of 2020-05-19.", "The MCP server keeps its own changelog at https://github.com/growthbook/growthbook-mcp/blob/main/CHANGELOG.md." ], "score": 84 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/growthbook.json", "live": { "slug": "growthbook", "probe": { "target": "https://mcp.growthbook.io/mcp", "method": "get", "lastAt": "2026-11-07T18:20:29.228253173Z", "lastOk": true, "lastStatus": 401, "lastMs": 327, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 268, "p95ms24h": 371, "samples24h": 239, "samples30d": 7440, "days": [ { "date": "2026-10-08", "probes": 70, "ok": 70 }, { "date": "2026-10-09", "probes": 250, "ok": 250 }, { "date": "2026-10-10", "probes": 247, "ok": 247 }, { "date": "2026-10-11", "probes": 247, "ok": 247 }, { "date": "2026-10-12", "probes": 247, "ok": 247 }, { "date": "2026-10-13", "probes": 248, "ok": 248 }, { "date": "2026-10-14", "probes": 249, "ok": 249 }, { "date": "2026-10-15", "probes": 253, "ok": 253 }, { "date": "2026-10-16", "probes": 252, "ok": 252 }, { "date": "2026-10-17", "probes": 253, "ok": 253 }, { "date": "2026-10-18", "probes": 256, "ok": 256 }, { "date": "2026-10-19", "probes": 255, "ok": 255 }, { "date": "2026-10-20", "probes": 252, "ok": 252 }, { "date": "2026-10-21", "probes": 253, "ok": 253 }, { "date": "2026-10-22", "probes": 253, "ok": 253 }, { "date": "2026-10-23", "probes": 248, "ok": 248 }, { "date": "2026-10-24", "probes": 251, "ok": 251 }, { "date": "2026-10-25", "probes": 250, "ok": 250 }, { "date": "2026-10-26", "probes": 252, "ok": 252 }, { "date": "2026-10-27", "probes": 249, "ok": 249 }, { "date": "2026-10-28", "probes": 251, "ok": 251 }, { "date": "2026-10-29", "probes": 248, "ok": 248 }, { "date": "2026-10-30", "probes": 249, "ok": 249 }, { "date": "2026-10-31", "probes": 251, "ok": 251 }, { "date": "2026-11-01", "probes": 249, "ok": 249 }, { "date": "2026-11-02", "probes": 250, "ok": 250 }, { "date": "2026-11-03", "probes": 248, "ok": 248 }, { "date": "2026-11-04", "probes": 246, "ok": 246 }, { "date": "2026-11-05", "probes": 185, "ok": 185 }, { "date": "2026-11-06", "probes": 241, "ok": 241 }, { "date": "2026-11-07", "probes": 187, "ok": 187 } ] }, "vendorStatus": { "page": "https://status.growthbook.io", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-11-07T04:47:53.006708259Z" }, "versions": [ { "registry": "github", "name": "growthbook/growthbook", "version": "v5.2.0", "released": "2026-11-03", "seenAt": "2026-11-06T23:31:45.349646939Z" }, { "registry": "mcp-registry", "name": "io.github.growthbook/growthbook-mcp", "version": "2.2.0", "seenAt": "2026-11-07T18:16:28.95801333Z" }, { "registry": "npm", "name": "@growthbook/growthbook", "version": "2.0.0", "seenAt": "2026-11-06T23:31:43.632815176Z" }, { "registry": "npm", "name": "@growthbook/mcp", "version": "2.2.0", "seenAt": "2026-11-06T23:31:42.874342993Z" }, { "registry": "pypi", "name": "growthbook", "version": "4.0.0", "released": "2026-11-02", "seenAt": "2026-11-06T23:31:45.155880521Z" } ], "githubStars": 8572, "npmWeekly": 9185, "pypiWeekly": 479785, "securityTxt": { "url": "https://growthbook.io/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-07T16:01:40.20454516Z" }, "llmsTxt": { "url": "https://docs.growthbook.io/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-11-07T15:32:39.975912104Z" }, "domain": { "domain": "growthbook.io", "checkedAt": "2026-11-01T14:23:41.368538454Z" }, "pages": [ { "url": "https://www.growthbook.io/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-11-07T14:29:29.272041513Z", "changedAt": "2026-11-04T08:40:45.015836681Z", "fingerprint": "18a31fd99466" }, { "url": "https://www.growthbook.io/legal/privacy-notice", "kind": "privacy", "status": 200, "checkedAt": "2026-11-07T14:29:27.3205356Z", "changedAt": "2026-11-06T13:50:11.648366307Z", "fingerprint": "2862dd2e25f5" }, { "url": "https://www.growthbook.io/legal/customer-agreement", "kind": "terms", "status": 200, "checkedAt": "2026-11-07T14:29:25.188738505Z", "changedAt": "2026-11-04T08:40:40.81521479Z", "fingerprint": "84ab8480f2bd" } ], "mcpTools": { "url": "https://mcp.growthbook.io/mcp", "checkedAt": "2026-11-07T01:45:18.456947997Z", "status": "auth", "note": "asks for credentials before listing its tools", "changedAt": "2026-11-07T01:45:18.456947997Z" }, "github": { "repo": "growthbook/growthbook", "checkedAt": "2026-11-02T08:53:22.52476929Z", "stars": 8556, "archived": false, "issuesEnabled": true, "pushedAt": "2026-11-02T08:46:13Z", "openIssues": 524, "openPRs": 356, "issuesOpened90d": 59, "issuesClosed90d": 158, "prsMerged90d": 662, "ci": { "branch": "main", "runs": 50, "success": 49, "failure": 1, "other": 0, "latest": "success", "latestAt": "2026-10-30T21:20:54Z" }, "advisories": [ { "ghsa": "GHSA-c4m3-8cgx-p88g", "severity": "critical", "published": "2026-08-19T19:38:41Z" }, { "ghsa": "GHSA-j24q-55xh-wm4r", "cve": "CVE-2022-36065", "severity": "high", "published": "2022-08-30T17:05:17Z" } ], "replies": { "sampled": 25, "unanswered": 17, "medianDays": 0.6 } }, "updatedAt": "2026-11-07T18:20:29.228253173Z" } }, "answer": "Harness Feature Management \u0026 Experimentation and GrowthBook score within a point of each other on agent readiness, 69.2 (B) and 68.6 (B). GrowthBook leads on reliability, schema \u0026 documentation, payments \u0026 pricing, maintenance \u0026 community and transparency \u0026 trust.", "b": { "slug": "harness-fme", "name": "Harness Feature Management \u0026 Experimentation", "vendor": "Harness Inc.", "vendorUrl": "https://www.harness.io", "kind": "http-api", "category": "product-analytics", "summary": "Harness Feature Management \u0026 Experimentation (FME), formerly Split, manages feature flags, targeting, metrics and experiments. Agents reach it through the Admin API at api.split.io and the FME toolset of the Harness MCP server.", "url": "https://www.anchorterminal.com/tools/harness-fme", "markdownUrl": "https://www.anchorterminal.com/tools/harness-fme.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/harness-fme.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/harness-fme.json", "dns": "harness-fme.grade.anchorterminal.com", "repo": "https://github.com/harness/mcp-server", "transports": [ "http", "stdio", "streamable-http" ], "remoteUrl": "https://mcp.harness.io/mcp", "packages": [ { "registry": "npm", "name": "harness-mcp-v2" } ], "auth": "mixed", "authNotes": "The Admin API takes an Admin API key as a Bearer token, or a Harness personal access token (PAT) or service account token (SAT) in `x-api-key`. Admin keys carry fixed roles that can be combined and cannot be edited after creation, and a key cannot create another with more roles. The local MCP server reads HARNESS_API_KEY. The hosted MCP endpoint uses Harness Platform OAuth and must be enabled per account by Harness Support.", "pricing": "freemium", "pricingNotes": "An FME Free Plan is enabled from inside a Harness account; its limits are not published. The Enterprise plan and FME pricing are by quotation through sales. No FME prices appear on harness.io/pricing.", "priceSummary": "Freemium", "where": "both", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the FME docs, the Split API reference or harness.io/pricing (checked 2026-11-06).", "endpoints": [] }, "toolCount": 11, "popularity": { "githubStars": null, "npmWeekly": 8800, "pypiWeekly": null, "asOf": "2026-11-06" }, "docsUrl": "https://developer.harness.io/feature-management-experimentation/feature-management-and-experimentation-documentation", "llmsTxt": "https://developer.harness.io/llms.txt", "capabilities": [ "analytics.flags", "analytics.experiments", "analytics.events" ], "tags": [ "official", "hosted", "mcp", "remote-mcp", "oauth", "llms-txt", "free-tier", "sales-led", "status-page", "soc2", "iso27001", "typescript", "python", "cli", "closed-source" ], "lastRelease": "2026-11-04", "graded": true, "anchor": { "graded": true, "score": 69.2, "grade": "B", "agentReady": false, "rank": 257, "ranked": true, "rankOf": 1486, "categoryRank": 4, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 83, "maintenance": 81, "payments": 15, "reliability": 80, "schema": 71, "security": 79, "transparency": 61 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-06" }, "negative": 0, "verdict": "Harness FME, formerly Split, gives agents 11 consolidated MCP tools with an FME-only toolset, a read-only switch and confirmation on writes, over an Admin API with documented limits and role-scoped keys. FME prices are not published, the free plan's limits are unstated, and the hosted MCP endpoint must be enabled by Harness Support.", "bestFor": "Teams already on Harness, or Split customers, who want agents to inspect and change flags and segments with guard rails.", "strengths": [ "11 generic MCP tools with `--toolsets=fme`, readOnlyHint on reads and elicitation before writes", "HARNESS_READ_ONLY blocks every create, update, delete and execute call", "Admin API keys with fixed, combinable roles, plus Harness PATs and SATs", "Documented rate limit with remaining and reset headers, and automatic backoff in the MCP server", "SOC 2 Type II, ISO 27001 and FedRAMP 20x, with FME audit logs and MCP audit sinks" ], "weaknesses": [ "No FME prices are published; Enterprise is by quotation and free plan limits are unstated", "The hosted MCP endpoint must be enabled per account by Harness Support", "The FME MCP docs page still describes building a Go binary, unlike the current npm package", "About 20 Admin API requests per 10 seconds per organisation, which large lists can hit", "No public OpenAPI file for the Admin API was found" ], "agentNotes": [ "Start the MCP server with `--toolsets=fme` so only FME resource types load", "Call `harness_describe(resource_type='fme_feature_flag')` before a create or update to see the fields", "Filter fme_feature_flag lists by name, tags or rollout status rather than listing every flag", "Set HARNESS_READ_ONLY for analysis tasks; leave confirmation on for kill, restore and delete", "On 429, wait at least the larger X-RateLimit-Reset-Seconds value before retrying" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 69.2 } ], "editorialScores": { "ergonomics": 83, "maintenance": 81, "payments": 15, "reliability": 80, "schema": 71, "security": 79, "transparency": 60 }, "provenanceScore": 61, "checked": { "categories": { "ergonomics": "2026-11-06", "maintenance": "2026-11-06", "payments": "2026-11-06", "reliability": "2026-11-06", "schema": "2026-11-06", "security": "2026-11-06", "transparency": "2026-11-06" }, "last": "2026-11-06", "oldest": "2026-11-06", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "npx harness-mcp-v2@latest", "config": { "mcpServers": { "harness": { "args": [ "harness-mcp-v2@latest", "--toolsets=fme" ], "command": "npx", "env": { "HARNESS_API_KEY": "pat.xxx" } } } } }, "letme": { "capability": "https://letme.dev/analytics.flags", "tool": "https://letme.dev/harness-fme" }, "area": "business", "provenance": { "legalEntity": "Harness Inc.", "domain": "harness.io", "domainRegistered": "", "endpointOnVendorDomain": false, "terms": "https://www.harness.io/legal/subscription-terms", "privacy": "https://www.harness.io/legal/privacy", "statusPage": "https://status.harness.io", "changelog": "https://github.com/harness/mcp-server/releases", "securityTxt": "none", "checked": "2026-11-06", "notes": [ "The Admin API is on api.split.io, the former Split domain, and the hosted MCP endpoint on mcp.harness.io.", "The privacy statement names Harness Inc. as controller and Harness France SAS as EU representative. Its header says last updated 23 October 2026 and its body says version of 14 October 2026.", "developer.harness.io/robots.txt allows all and carries Content-Signal ai-train=yes, search=yes, ai-input=yes. docs.split.io allows all but edit and login paths.", "www.harness.io/.well-known/security.txt answered with an invalid-request page. The security page gives security@harness.io and a private bug bounty on request.", "RDAP gave no registration date for harness.io." ], "score": 61 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/harness-fme.json", "live": { "slug": "harness-fme", "probe": { "target": "https://mcp.harness.io/mcp", "method": "get", "lastAt": "2026-11-07T18:20:29.454967067Z", "lastOk": true, "lastStatus": 401, "lastMs": 211, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 195, "p95ms24h": 280, "samples24h": 200, "samples30d": 200, "days": [ { "date": "2026-11-06", "probes": 13, "ok": 13 }, { "date": "2026-11-07", "probes": 187, "ok": 187 } ] }, "vendorStatus": { "page": "https://status.harness.io", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-11-07T18:21:14.597545686Z" }, "versions": [ { "registry": "github", "name": "harness/mcp-server", "version": "v3.2.40", "released": "2026-11-05", "seenAt": "2026-11-06T23:32:13.419387707Z" }, { "registry": "npm", "name": "harness-mcp-v2", "version": "3.2.40", "seenAt": "2026-11-06T23:32:12.430886041Z" } ], "githubStars": 112, "npmWeekly": 8800, "securityTxt": { "url": "https://harness.io/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-07T16:01:19.957252225Z" }, "llmsTxt": { "url": "https://developer.harness.io/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-11-07T15:32:41.749004752Z" }, "pages": [ { "url": "https://www.harness.io/legal/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-11-07T14:29:30.551687912Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "b15935b42065" }, { "url": "https://www.harness.io/legal/subscription-terms", "kind": "terms", "status": 200, "checkedAt": "2026-11-07T14:29:35.70684084Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "871b29e12dd4" } ], "updatedAt": "2026-11-07T18:21:14.597545686Z" } }, "edges": [ { "by": 25, "category": "payments", "leads": "growthbook", "name": "Payments \u0026 pricing", "reasons": { "a": "No x402, MPP or L402 (0). Prices are public without a login. Pro is $40 a seat a month, with $10 per million CDN requests, $1 per GB and $30 per million Managed Warehouse events above the allowance; the $40 seat and $30 per million were re-read on 1 November (20). The Starter plan is free with \"No credit card required\", re-read on 1 November (20). A person signs up in a browser, then approves OAuth or creates a key (0). 0+20+20+0 = 40.", "b": "No x402, MPP or L402 (0). No FME prices are published; harness.io/pricing lists FME only under Enterprise, priced by quotation (0). The docs describe a Start FME Free Plan step inside a Harness account; its limits and whether a card is needed aren't stated (15 of 20). A person signs up for Harness in a browser and creates a key or token (0). 0+0+15+0 = 15." }, "scores": { "a": 40, "b": 15 } }, { "by": 14, "category": "transparency", "leads": "growthbook", "name": "Transparency \u0026 trust", "reasons": { "a": "The core and the MCP server are MIT. Three enterprise directories in the main repository are under GrowthBook's enterprise licence and are part of what Cloud runs (25 of 30). A Customer Agreement, a Privacy Notice of 8 June 2026 and a DPA of 19 June 2025 are published. The agreement grants GrowthBook an unrestricted right to use Customer Data, including to train its AI algorithms, then limits personal information to performing the Services. The Privacy Notice gives no retention periods, and the docs say only aggregate results are stored. We did not read the DPA, which is a download (16 of 30). Legacy v1 routes and 34 operations are marked deprecated with no removal dates, and no deprecation policy was found. The MCP changelog gives migration steps (8 of 20). The sub-processor list of 11 May 2026 names seven providers with locations, mostly in the United States. Notice of new ones is promised only as far as the law requires (17 of 20). 25+16+8+17 = 66. The legal documents are per the 8 October check, not re-read on 1 November.", "b": "A closed service under Harness's subscription terms; the MCP server is MIT (18 of 30). The privacy statement covers website and sales data and defers customer data to the customer agreement and a published DPA; retention periods for customer data weren't found (18 of 30). A versioning policy for SDKs with support windows, and Split-era API endpoints marked deprecated with migration guides (14 of 20). Sub-processors are on the trust centre, which we didn't read, and the security page doesn't name data locations (10 of 20). 18+18+14+10 = 60." }, "scores": { "a": 75, "b": 61 } }, { "by": 8, "category": "maintenance", "leads": "growthbook", "name": "Maintenance \u0026 community", "reasons": { "a": "MCP server 2.2.0 is dated 5 October 2026 and published to the registry on 6 October, GrowthBook 5.1.0 was tagged on 21 September 2026, and the main repository's commit releasing the JavaScript and React SDKs 2.0.0 landed on 30 October (npm not readable from here) (30). In the 90 days from 3 August, GrowthBook 5.0.1 (19 August) and 5.1.0, MCP 2.1.0 (10 August) and 2.2.0, and the SDK 2.0.0 release commit (20). The main repository's 200 newest commits run from 5 to 30 October 2026, and there is a community Slack. We did not read how quickly issues are answered (15 of 25). `io.github.growthbook/growthbook-mcp` is in the official MCP registry at 2.2.0, published 6 October 2026 and still latest on 1 November (15). The MCP repository runs CI on Node 22 and 26 and took dependency updates on 8 and 27 October 2026, both still unreleased. The package states Node 18 or later, which CI does not test (9 of 10). 30+20+15+15+9 = 89.", "b": "harness-mcp-v2 3.2.40 was tagged on 4 November 2026 (30). 14 tagged MCP releases between 8 August and 4 November (20). 100 commits since 8 August in the clone; FME docs and SDK release notes are dated, with support and a community site. Issue response times weren't read because the GitHub API refused us for its rate limit (15 of 25). Not found in the official MCP registry under a Harness namespace; official SDKs are current (8 of 15). MIT package with npm shrinkwrap and tests; CI state not read (8 of 10). 30+20+15+8+8 = 81." }, "scores": { "a": 89, "b": 81 } }, { "by": 7, "category": "ergonomics", "leads": "harness-fme", "name": "Agent ergonomics", "reasons": { "a": "Four compact MCP tools, with skills loaded on demand and a /mcp/api endpoint that drops the skill tools (25). `limit` (default 10, maximum 100) and `offset` on 40 list operations, with filters by project, data source and status. No field selection was found, and the API tools return the raw response body (15 of 20). Errors are a status code and a `message` with no machine code. 422 marks a soft warning that can be resubmitted with `ignoreWarnings`, and the MCP server adds recovery hints for 401, 403, 404 and 429 (13 of 20). All four tools carry readOnlyHint and destructiveHint, and reads and writes are separate tools. Every write is marked destructive, and no idempotency keys were found (13 of 20). The API tools need one to three parameters. The SDKs cover flag evaluation in many languages, not the REST API (10 of 15). 25+15+13+13+10 = 76. Not re-read on 1 November beyond the MCP page and the spec, which still support each line.", "b": "11 consolidated tools, and `--toolsets=fme` narrows the server to FME (25). Flag lists filter server-side by name, tag and rollout status, and the Admin API paginates with markerLimit (17 of 20). Documented status codes, 429 headers, and a harness_diagnose tool. Error bodies aren't documented per endpoint (14 of 20). harness_list and harness_get carry readOnlyHint, write tools ask for confirmation by elicitation, and harness_delete is marked destructive. No idempotency keys (15 of 20). Two required settings (API key, optional org and project, account ID read from the token); a Python Admin API wrapper and CLI, and SDKs in more than a dozen languages for evaluation (12 of 15). 25+17+14+15+12 = 83." }, "scores": { "a": 76, "b": 83 } }, { "by": 6, "category": "reliability", "leads": "growthbook", "name": "Reliability", "reasons": { "a": "Graded on GrowthBook Cloud with the hosted lines. Instatus page at status.growthbook.io with three components (GrowthBook Cloud App, Api, CDN) and a notice history (20). No notices from August to October 2026, and the newest entry in the feed, re-read on 1 November, is still dated 21 August 2025. The MCP server is not a listed component, and the 2.2.0 changelog fixes intermittent 502s in HTTP mode that were not posted, so 25 of 30. API keys are limited to 60 requests a minute on Cloud, re-read in the API introduction and the OpenAPI spec on 1 November; since 19 October self-hosted servers can set per-key limits (15). The docs say only to try again later on 429. The server source sends standard RateLimit headers and the MCP server waits for `RateLimit-Reset` and retries three times, but no backoff guidance or idempotency keys were found in the docs (8 of 15). The pricing page lists a 99.99 per cent uptime SLA on Enterprise, re-read on 1 November. The SLA document itself was not found in public (8 of 10). The REST API's /v1 is described as stable and the MCP docs carry no beta label (10). 20+25+15+8+8+10 = 86.", "b": "Graded on the hosted FME Admin API with the hosted lines. Statuspage at status.harness.io with an FME component among 196 (20). In the 90 days from 8 August, two FME incidents: API write operations returned 499 errors for 30 minutes on 20 August (minor) and the FME user interface was unavailable for 15 minutes on 23 August (major, interface only; flag evaluation was unaffected per the post). No API outage of an hour or more (20 of 30). About 20 Admin API requests per 10 seconds per organisation and per IP, documented on the MCP page (15). 429 responses carry remaining and reset headers with guidance to wait for the larger reset, and the MCP server backs off and retries three times (15). No SLA was found on harness.io/pricing or the FME docs (0). FME is generally available and the MCP server is at 3.2.40 (10). 20+20+15+15+0+10 = 80." }, "scores": { "a": 86, "b": 80 } }, { "by": 5, "category": "schema", "leads": "growthbook", "name": "Schema \u0026 documentation", "reasons": { "a": "Public OpenAPI 3.1 spec, version 5.1.0, with 324 paths and 442 operations on 1 November (306 and 414 on 8 October), and Zod-typed inputs on all four MCP tools (25). llms.txt and a Markdown copy of each docs page (10). 441 of 442 operations have a summary and 205 have a description. The MCP tool descriptions say when to use each tool, and the bundled skills carry the workflows (13 of 20). The spec has 1,445 enums and marks required fields, but `growthbook_api_write` takes the path as a string and the body as a JSON string, and the docs still say the API tools do not validate payloads (9 of 15). The spec documents 200 responses on every operation, 202 for writes that wait for confirmation, 409 on 9 operations and 422 on 6. The introduction lists eight status codes and a `message` body (6 of 15). Path versions /v1 and /v2, 34 operations marked deprecated, GitHub releases, and an MCP changelog with breaking changes called out (13 of 15). 25+10+13+9+6+13 = 76.", "b": "No public OpenAPI file for the Admin API was found; the reference is a ReadMe site with a Postman collection. The MCP server's 11 tools have typed inputs, and harness_describe returns each FME resource's fields (18 of 25). llms.txt on both developer.harness.io and docs.split.io, and every page as Markdown with `.md` (10). The README describes each tool and when writes ask for confirmation; resource details sit behind harness_describe rather than in the tool text (13 of 20). The generic tools take a resource_type string and a body, so per-resource constraints aren't in the schema (8 of 15). An error-code page lists 400, 401, 402, 403, 404, 409 and 429 with causes, and docs carry curl examples (10 of 15). Tagged MCP releases and dated SDK versioning policy; the Admin API has v1 and v2 paths and deprecation notices for Split-era endpoints (12 of 15). 18+10+13+8+10+12 = 71." }, "scores": { "a": 76, "b": 71 } } ], "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "GrowthBook, Inc.", "b": "Harness Inc.", "name": "Vendor" }, { "a": "https://mcp.growthbook.io/mcp", "b": "https://mcp.harness.io/mcp", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP, stdio", "b": "HTTP, stdio, Streamable HTTP", "name": "Transports" }, { "a": "OAuth or key", "b": "OAuth or key", "name": "Auth" }, { "a": "Freemium", "b": "Freemium", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "MIT for the core and for the MCP server. Three enterprise directories in the main repository are under GrowthBook's enterprise licence. GrowthBook Cloud is a hosted service under the Customer Agreement", "b": "none", "name": "Licence" }, { "a": "4", "b": "11", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "io.github.growthbook/growthbook-mcp", "b": "not listed", "name": "MCP registry" }, { "a": "2026-10-06", "b": "2026-11-04", "name": "Last release" }, { "a": "2025-06-19", "b": "no date given", "name": "Terms last updated" }, { "a": "2026-06-08", "b": "no date given", "name": "Privacy policy last updated" }, { "a": "yes", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms restrict automated access" }, { "a": "yes", "b": "yes", "name": "Terms restrict benchmarking" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "not found in the text", "b": "not found in the text", "name": "Arbitration or class-action waiver" }, { "a": "8.5k stars, 1.3M npm/wk, 433k PyPI/wk", "b": "8.8k npm/wk", "name": "Popularity" }, { "a": "3.3/5 (4)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "Harness Feature Management \u0026 Experimentation and GrowthBook score within a point of each other on agent readiness, 69.2 (B) and 68.6 (B). GrowthBook leads on reliability, schema \u0026 documentation, payments \u0026 pricing, maintenance \u0026 community and transparency \u0026 trust.", "question": "Which is better for AI agents, GrowthBook or Harness Feature Management \u0026 Experimentation?" }, { "answer": "Both take an API key or an OAuth sign-in.", "question": "Do GrowthBook and Harness Feature Management \u0026 Experimentation need an API key?" }, { "answer": "Yes. GrowthBook has a hosted endpoint at https://mcp.growthbook.io/mcp and Harness Feature Management \u0026 Experimentation at https://mcp.harness.io/mcp.", "question": "Can an agent call GrowthBook and Harness Feature Management \u0026 Experimentation without installing anything?" }, { "answer": "GrowthBook is open source (MIT for the core and for the MCP server. Three enterprise directories in the main repository are under GrowthBook's enterprise licence. GrowthBook Cloud is a hosted service under the Customer Agreement). No open-source release is listed for Harness Feature Management \u0026 Experimentation.", "question": "Are GrowthBook and Harness Feature Management \u0026 Experimentation open source?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 86 against 80", "Schema \u0026 documentation, 76 against 71", "Payments \u0026 pricing, 40 against 15", "Maintenance \u0026 community, 89 against 81", "Transparency \u0026 trust, 75 against 61" ], "also": [ "Free to start without a card", "Open source" ], "goodFor": "Teams that want flags and experiments analysed against their own warehouse, with an open-source core and a self-hosted option.", "slug": "growthbook", "watchFor": "The API tools take a path and a JSON string and don't validate payloads, so correct calls depend on the bundled skills" }, { "aheadOn": [ "Agent ergonomics, 83 against 76" ], "also": [ "No incidents deducted, where GrowthBook loses 6 points for them" ], "goodFor": "Teams already on Harness, or Split customers, who want agents to inspect and change flags and segments with guard rails.", "slug": "harness-fme", "watchFor": "No FME prices are published; Enterprise is by quotation and free plan limits are unstated" } ], "history": { "growthbook": [ { "causes": [ "product", "event" ], "date": "2026-11-01", "delta": -1.5, "from": 70.1, "fromGrade": "BB", "to": 68.6, "toGrade": "B" }, { "causes": [ "method" ], "date": "2026-10-27", "delta": 0, "from": 70.1, "fromGrade": "BB", "to": 70.1, "toGrade": "BB" } ], "harness-fme": null }, "job": { "capability": "analytics.experiments", "name": "Feature flags and experiments" }, "others": [ { "json": "https://www.anchorterminal.com/compare/amplitude-vs-growthbook.json", "title": "Amplitude vs GrowthBook", "url": "https://www.anchorterminal.com/compare/amplitude-vs-growthbook" }, { "json": "https://www.anchorterminal.com/compare/countly-vs-growthbook.json", "title": "Countly vs GrowthBook", "url": "https://www.anchorterminal.com/compare/countly-vs-growthbook" }, { "json": "https://www.anchorterminal.com/compare/fullstory-vs-growthbook.json", "title": "Fullstory vs GrowthBook", "url": "https://www.anchorterminal.com/compare/fullstory-vs-growthbook" }, { "json": "https://www.anchorterminal.com/compare/growthbook-vs-openpanel.json", "title": "GrowthBook vs OpenPanel", "url": "https://www.anchorterminal.com/compare/growthbook-vs-openpanel" }, { "json": "https://www.anchorterminal.com/compare/growthbook-vs-pendo.json", "title": "GrowthBook vs Pendo", "url": "https://www.anchorterminal.com/compare/growthbook-vs-pendo" }, { "json": "https://www.anchorterminal.com/compare/growthbook-vs-userpilot.json", "title": "GrowthBook vs Userpilot", "url": "https://www.anchorterminal.com/compare/growthbook-vs-userpilot" }, { "json": "https://www.anchorterminal.com/compare/growthbook-vs-woopra.json", "title": "GrowthBook vs Woopra", "url": "https://www.anchorterminal.com/compare/growthbook-vs-woopra" }, { "json": "https://www.anchorterminal.com/compare/amplitude-vs-harness-fme.json", "title": "Amplitude vs Harness Feature Management \u0026 Experimentation", "url": "https://www.anchorterminal.com/compare/amplitude-vs-harness-fme" }, { "json": "https://www.anchorterminal.com/compare/countly-vs-harness-fme.json", "title": "Countly vs Harness Feature Management \u0026 Experimentation", "url": "https://www.anchorterminal.com/compare/countly-vs-harness-fme" }, { "json": "https://www.anchorterminal.com/compare/flagsmith-vs-growthbook.json", "title": "Flagsmith vs GrowthBook", "url": "https://www.anchorterminal.com/compare/flagsmith-vs-growthbook" }, { "json": "https://www.anchorterminal.com/compare/flagsmith-vs-harness-fme.json", "title": "Flagsmith vs Harness Feature Management \u0026 Experimentation", "url": "https://www.anchorterminal.com/compare/flagsmith-vs-harness-fme" }, { "json": "https://www.anchorterminal.com/compare/harness-fme-vs-launchdarkly.json", "title": "Harness Feature Management \u0026 Experimentation vs LaunchDarkly", "url": "https://www.anchorterminal.com/compare/harness-fme-vs-launchdarkly" }, { "json": "https://www.anchorterminal.com/compare/harness-fme-vs-mixpanel.json", "title": "Harness Feature Management \u0026 Experimentation vs Mixpanel", "url": "https://www.anchorterminal.com/compare/harness-fme-vs-mixpanel" }, { "json": "https://www.anchorterminal.com/compare/harness-fme-vs-optimizely.json", "title": "Harness Feature Management \u0026 Experimentation vs Optimizely Experimentation", "url": "https://www.anchorterminal.com/compare/harness-fme-vs-optimizely" }, { "json": "https://www.anchorterminal.com/compare/harness-fme-vs-posthog.json", "title": "Harness Feature Management \u0026 Experimentation vs PostHog", "url": "https://www.anchorterminal.com/compare/harness-fme-vs-posthog" }, { "json": "https://www.anchorterminal.com/compare/harness-fme-vs-statsig.json", "title": "Harness Feature Management \u0026 Experimentation vs Statsig", "url": "https://www.anchorterminal.com/compare/harness-fme-vs-statsig" }, { "json": "https://www.anchorterminal.com/compare/fullstory-vs-harness-fme.json", "title": "Fullstory vs Harness Feature Management \u0026 Experimentation", "url": "https://www.anchorterminal.com/compare/fullstory-vs-harness-fme" }, { "json": "https://www.anchorterminal.com/compare/growthbook-vs-heap.json", "title": "GrowthBook vs Heap", "url": "https://www.anchorterminal.com/compare/growthbook-vs-heap" }, { "json": "https://www.anchorterminal.com/compare/harness-fme-vs-heap.json", "title": "Harness Feature Management \u0026 Experimentation vs Heap", "url": "https://www.anchorterminal.com/compare/harness-fme-vs-heap" }, { "json": "https://www.anchorterminal.com/compare/harness-fme-vs-openpanel.json", "title": "Harness Feature Management \u0026 Experimentation vs OpenPanel", "url": "https://www.anchorterminal.com/compare/harness-fme-vs-openpanel" }, { "json": "https://www.anchorterminal.com/compare/harness-fme-vs-woopra.json", "title": "Harness Feature Management \u0026 Experimentation vs Woopra", "url": "https://www.anchorterminal.com/compare/harness-fme-vs-woopra" }, { "json": "https://www.anchorterminal.com/compare/growthbook-vs-launchdarkly.json", "title": "GrowthBook vs LaunchDarkly", "url": "https://www.anchorterminal.com/compare/growthbook-vs-launchdarkly" }, { "json": "https://www.anchorterminal.com/compare/growthbook-vs-matomo.json", "title": "GrowthBook vs Matomo", "url": "https://www.anchorterminal.com/compare/growthbook-vs-matomo" }, { "json": "https://www.anchorterminal.com/compare/growthbook-vs-mixpanel.json", "title": "GrowthBook vs Mixpanel", "url": "https://www.anchorterminal.com/compare/growthbook-vs-mixpanel" }, { "json": "https://www.anchorterminal.com/compare/growthbook-vs-mostly-good-metrics.json", "title": "GrowthBook vs Mostly Good Metrics", "url": "https://www.anchorterminal.com/compare/growthbook-vs-mostly-good-metrics" }, { "json": "https://www.anchorterminal.com/compare/growthbook-vs-optimizely.json", "title": "GrowthBook vs Optimizely Experimentation", "url": "https://www.anchorterminal.com/compare/growthbook-vs-optimizely" }, { "json": "https://www.anchorterminal.com/compare/growthbook-vs-posthog.json", "title": "GrowthBook vs PostHog", "url": "https://www.anchorterminal.com/compare/growthbook-vs-posthog" }, { "json": "https://www.anchorterminal.com/compare/growthbook-vs-statsig.json", "title": "GrowthBook vs Statsig", "url": "https://www.anchorterminal.com/compare/growthbook-vs-statsig" }, { "json": "https://www.anchorterminal.com/compare/harness-fme-vs-matomo.json", "title": "Harness Feature Management \u0026 Experimentation vs Matomo", "url": "https://www.anchorterminal.com/compare/harness-fme-vs-matomo" }, { "json": "https://www.anchorterminal.com/compare/harness-fme-vs-mostly-good-metrics.json", "title": "Harness Feature Management \u0026 Experimentation vs Mostly Good Metrics", "url": "https://www.anchorterminal.com/compare/harness-fme-vs-mostly-good-metrics" } ], "panel": null, "scores": [ { "by": 6, "edge": "growthbook", "growthbook": 86, "harness-fme": 80, "key": "reliability", "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 5, "edge": "growthbook", "growthbook": 76, "harness-fme": 71, "key": "schema", "name": "Schema \u0026 documentation", "weight": 13 }, { "by": 7, "edge": "harness-fme", "growthbook": 76, "harness-fme": 83, "key": "ergonomics", "name": "Agent ergonomics", "weight": 13 }, { "by": 3, "edge": "harness-fme", "growthbook": 76, "harness-fme": 79, "key": "security", "name": "Security \u0026 auth", "weight": 14 }, { "by": 25, "edge": "growthbook", "growthbook": 40, "harness-fme": 15, "key": "payments", "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 8, "edge": "growthbook", "growthbook": 89, "harness-fme": 81, "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7 }, { "by": 14, "edge": "growthbook", "growthbook": 75, "harness-fme": 61, "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Harness Feature Management \u0026 Experimentation and GrowthBook score within a point of each other on agent readiness, 69.2 (B) and 68.6 (B). GrowthBook leads on reliability, schema \u0026 documentation, payments \u0026 pricing, maintenance \u0026 community and transparency \u0026 trust. Both do feature flags and experiments.", "tasks": null, "tutorials": [], "verdicts": { "growthbook": "GrowthBook Cloud's MCP server has four annotated tools, OAuth whose consent page can grant read-only or confirmation-gated access, and a 442-operation OpenAPI spec behind it. The free plan needs no card. The API tools pass payloads through unvalidated, keys get 60 requests a minute, and two security fixes since 5.1.0 are unreleased.", "harness-fme": "Harness FME, formerly Split, gives agents 11 consolidated MCP tools with an FME-only toolset, a read-only switch and confirmation on writes, over an Admin API with documented limits and role-scoped keys. FME prices are not published, the free plan's limits are unstated, and the hosted MCP endpoint must be enabled by Harness Support." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/growthbook-vs-harness-fme", "json": "https://www.anchorterminal.com/compare/growthbook-vs-harness-fme.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/growthbook-vs-harness-fme.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/growthbook-vs-harness-fme.min.md" }, "markdown": "Harness Feature Management \u0026 Experimentation and GrowthBook score within a point of each other on agent readiness, 69.2 (B) and 68.6 (B). GrowthBook leads on reliability, schema \u0026 documentation, payments \u0026 pricing, maintenance \u0026 community and transparency \u0026 trust. Both do feature flags and experiments.\n\n- GrowthBook: grade B, 68.6/100, rank #278 of 1486. Markdown https://www.anchorterminal.com/tools/growthbook.md · JSON https://www.anchorterminal.com/api/v1/tools/growthbook.json\n- Harness Feature Management \u0026 Experimentation: grade B, 69.2/100, rank #257 of 1486. Markdown https://www.anchorterminal.com/tools/harness-fme.md · JSON https://www.anchorterminal.com/api/v1/tools/harness-fme.json\n- Best product analytics and experimentation tools for AI agents: https://www.anchorterminal.com/best/product-analytics/index.md\n- All 153 product analytics comparisons: https://www.anchorterminal.com/compare/product-analytics/index.md\n\n## Which one, for what\n\n### GrowthBook (B)\n\nGood for: Teams that want flags and experiments analysed against their own warehouse, with an open-source core and a self-hosted option.\n\nAhead on:\n- Reliability, 86 against 80\n- Schema \u0026 documentation, 76 against 71\n- Payments \u0026 pricing, 40 against 15\n- Maintenance \u0026 community, 89 against 81\n- Transparency \u0026 trust, 75 against 61\n\nAlso in its favour:\n- Free to start without a card\n- Open source\n\nWatch for: The API tools take a path and a JSON string and don't validate payloads, so correct calls depend on the bundled skills\n\n### Harness Feature Management \u0026 Experimentation (B)\n\nGood for: Teams already on Harness, or Split customers, who want agents to inspect and change flags and segments with guard rails.\n\nAhead on:\n- Agent ergonomics, 83 against 76\n\nAlso in its favour:\n- No incidents deducted, where GrowthBook loses 6 points for them\n\nWatch for: No FME prices are published; Enterprise is by quotation and free plan limits are unstated\n\n\n## Why the edge\n\n### Payments \u0026 pricing: GrowthBook +25\n\n- GrowthBook (40): No x402, MPP or L402 (0). Prices are public without a login. Pro is $40 a seat a month, with $10 per million CDN requests, $1 per GB and $30 per million Managed Warehouse events above the allowance; the $40 seat and $30 per million were re-read on 1 November (20). The Starter plan is free with \"No credit card required\", re-read on 1 November (20). A person signs up in a browser, then approves OAuth or creates a key (0). 0+20+20+0 = 40.\n- Harness Feature Management \u0026 Experimentation (15): No x402, MPP or L402 (0). No FME prices are published; harness.io/pricing lists FME only under Enterprise, priced by quotation (0). The docs describe a Start FME Free Plan step inside a Harness account; its limits and whether a card is needed aren't stated (15 of 20). A person signs up for Harness in a browser and creates a key or token (0). 0+0+15+0 = 15.\n\n### Transparency \u0026 trust: GrowthBook +14\n\n- GrowthBook (75): The core and the MCP server are MIT. Three enterprise directories in the main repository are under GrowthBook's enterprise licence and are part of what Cloud runs (25 of 30). A Customer Agreement, a Privacy Notice of 8 June 2026 and a DPA of 19 June 2025 are published. The agreement grants GrowthBook an unrestricted right to use Customer Data, including to train its AI algorithms, then limits personal information to performing the Services. The Privacy Notice gives no retention periods, and the docs say only aggregate results are stored. We did not read the DPA, which is a download (16 of 30). Legacy v1 routes and 34 operations are marked deprecated with no removal dates, and no deprecation policy was found. The MCP changelog gives migration steps (8 of 20). The sub-processor list of 11 May 2026 names seven providers with locations, mostly in the United States. Notice of new ones is promised only as far as the law requires (17 of 20). 25+16+8+17 = 66. The legal documents are per the 8 October check, not re-read on 1 November.\n- Harness Feature Management \u0026 Experimentation (61): A closed service under Harness's subscription terms; the MCP server is MIT (18 of 30). The privacy statement covers website and sales data and defers customer data to the customer agreement and a published DPA; retention periods for customer data weren't found (18 of 30). A versioning policy for SDKs with support windows, and Split-era API endpoints marked deprecated with migration guides (14 of 20). Sub-processors are on the trust centre, which we didn't read, and the security page doesn't name data locations (10 of 20). 18+18+14+10 = 60.\n\n### Maintenance \u0026 community: GrowthBook +8\n\n- GrowthBook (89): MCP server 2.2.0 is dated 5 October 2026 and published to the registry on 6 October, GrowthBook 5.1.0 was tagged on 21 September 2026, and the main repository's commit releasing the JavaScript and React SDKs 2.0.0 landed on 30 October (npm not readable from here) (30). In the 90 days from 3 August, GrowthBook 5.0.1 (19 August) and 5.1.0, MCP 2.1.0 (10 August) and 2.2.0, and the SDK 2.0.0 release commit (20). The main repository's 200 newest commits run from 5 to 30 October 2026, and there is a community Slack. We did not read how quickly issues are answered (15 of 25). `io.github.growthbook/growthbook-mcp` is in the official MCP registry at 2.2.0, published 6 October 2026 and still latest on 1 November (15). The MCP repository runs CI on Node 22 and 26 and took dependency updates on 8 and 27 October 2026, both still unreleased. The package states Node 18 or later, which CI does not test (9 of 10). 30+20+15+15+9 = 89.\n- Harness Feature Management \u0026 Experimentation (81): harness-mcp-v2 3.2.40 was tagged on 4 November 2026 (30). 14 tagged MCP releases between 8 August and 4 November (20). 100 commits since 8 August in the clone; FME docs and SDK release notes are dated, with support and a community site. Issue response times weren't read because the GitHub API refused us for its rate limit (15 of 25). Not found in the official MCP registry under a Harness namespace; official SDKs are current (8 of 15). MIT package with npm shrinkwrap and tests; CI state not read (8 of 10). 30+20+15+8+8 = 81.\n\n### Agent ergonomics: Harness Feature Management \u0026 Experimentation +7\n\n- GrowthBook (76): Four compact MCP tools, with skills loaded on demand and a /mcp/api endpoint that drops the skill tools (25). `limit` (default 10, maximum 100) and `offset` on 40 list operations, with filters by project, data source and status. No field selection was found, and the API tools return the raw response body (15 of 20). Errors are a status code and a `message` with no machine code. 422 marks a soft warning that can be resubmitted with `ignoreWarnings`, and the MCP server adds recovery hints for 401, 403, 404 and 429 (13 of 20). All four tools carry readOnlyHint and destructiveHint, and reads and writes are separate tools. Every write is marked destructive, and no idempotency keys were found (13 of 20). The API tools need one to three parameters. The SDKs cover flag evaluation in many languages, not the REST API (10 of 15). 25+15+13+13+10 = 76. Not re-read on 1 November beyond the MCP page and the spec, which still support each line.\n- Harness Feature Management \u0026 Experimentation (83): 11 consolidated tools, and `--toolsets=fme` narrows the server to FME (25). Flag lists filter server-side by name, tag and rollout status, and the Admin API paginates with markerLimit (17 of 20). Documented status codes, 429 headers, and a harness_diagnose tool. Error bodies aren't documented per endpoint (14 of 20). harness_list and harness_get carry readOnlyHint, write tools ask for confirmation by elicitation, and harness_delete is marked destructive. No idempotency keys (15 of 20). Two required settings (API key, optional org and project, account ID read from the token); a Python Admin API wrapper and CLI, and SDKs in more than a dozen languages for evaluation (12 of 15). 25+17+14+15+12 = 83.\n\n### Reliability: GrowthBook +6\n\n- GrowthBook (86): Graded on GrowthBook Cloud with the hosted lines. Instatus page at status.growthbook.io with three components (GrowthBook Cloud App, Api, CDN) and a notice history (20). No notices from August to October 2026, and the newest entry in the feed, re-read on 1 November, is still dated 21 August 2025. The MCP server is not a listed component, and the 2.2.0 changelog fixes intermittent 502s in HTTP mode that were not posted, so 25 of 30. API keys are limited to 60 requests a minute on Cloud, re-read in the API introduction and the OpenAPI spec on 1 November; since 19 October self-hosted servers can set per-key limits (15). The docs say only to try again later on 429. The server source sends standard RateLimit headers and the MCP server waits for `RateLimit-Reset` and retries three times, but no backoff guidance or idempotency keys were found in the docs (8 of 15). The pricing page lists a 99.99 per cent uptime SLA on Enterprise, re-read on 1 November. The SLA document itself was not found in public (8 of 10). The REST API's /v1 is described as stable and the MCP docs carry no beta label (10). 20+25+15+8+8+10 = 86.\n- Harness Feature Management \u0026 Experimentation (80): Graded on the hosted FME Admin API with the hosted lines. Statuspage at status.harness.io with an FME component among 196 (20). In the 90 days from 8 August, two FME incidents: API write operations returned 499 errors for 30 minutes on 20 August (minor) and the FME user interface was unavailable for 15 minutes on 23 August (major, interface only; flag evaluation was unaffected per the post). No API outage of an hour or more (20 of 30). About 20 Admin API requests per 10 seconds per organisation and per IP, documented on the MCP page (15). 429 responses carry remaining and reset headers with guidance to wait for the larger reset, and the MCP server backs off and retries three times (15). No SLA was found on harness.io/pricing or the FME docs (0). FME is generally available and the MCP server is at 3.2.40 (10). 20+20+15+15+0+10 = 80.\n\n### Schema \u0026 documentation: GrowthBook +5\n\n- GrowthBook (76): Public OpenAPI 3.1 spec, version 5.1.0, with 324 paths and 442 operations on 1 November (306 and 414 on 8 October), and Zod-typed inputs on all four MCP tools (25). llms.txt and a Markdown copy of each docs page (10). 441 of 442 operations have a summary and 205 have a description. The MCP tool descriptions say when to use each tool, and the bundled skills carry the workflows (13 of 20). The spec has 1,445 enums and marks required fields, but `growthbook_api_write` takes the path as a string and the body as a JSON string, and the docs still say the API tools do not validate payloads (9 of 15). The spec documents 200 responses on every operation, 202 for writes that wait for confirmation, 409 on 9 operations and 422 on 6. The introduction lists eight status codes and a `message` body (6 of 15). Path versions /v1 and /v2, 34 operations marked deprecated, GitHub releases, and an MCP changelog with breaking changes called out (13 of 15). 25+10+13+9+6+13 = 76.\n- Harness Feature Management \u0026 Experimentation (71): No public OpenAPI file for the Admin API was found; the reference is a ReadMe site with a Postman collection. The MCP server's 11 tools have typed inputs, and harness_describe returns each FME resource's fields (18 of 25). llms.txt on both developer.harness.io and docs.split.io, and every page as Markdown with `.md` (10). The README describes each tool and when writes ask for confirmation; resource details sit behind harness_describe rather than in the tool text (13 of 20). The generic tools take a resource_type string and a body, so per-resource constraints aren't in the schema (8 of 15). An error-code page lists 400, 401, 402, 403, 404, 409 and 429 with causes, and docs carry curl examples (10 of 15). Tagged MCP releases and dated SDK versioning policy; the Admin API has v1 and v2 paths and deprecation notices for Split-era endpoints (12 of 15). 18+10+13+8+10+12 = 71.\n\n## Score by category\n\n| Category | Weight | GrowthBook | Harness Feature Management \u0026 Experimentation | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 86 | 80 | GrowthBook +6 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 76 | 71 | GrowthBook +5 |\n| Agent ergonomics | 13% (16.2 this run) | 76 | 83 | Harness Feature Management \u0026 Experimentation +7 |\n| Security \u0026 auth | 14% (17.5 this run) | 76 | 79 | Harness Feature Management \u0026 Experimentation +3 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 15 | GrowthBook +25 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 89 | 81 | GrowthBook +8 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 75 | 61 | GrowthBook +14 |\n| Negative events | ≤15 | -6 | 0 | |\n| **Total** | | **68.6 · B** | **69.2 · B** | |\n\n## Facts side by side\n\n| Fact | GrowthBook | Harness Feature Management \u0026 Experimentation |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | GrowthBook, Inc. | Harness Inc. |\n| Hosted endpoint | `https://mcp.growthbook.io/mcp` | `https://mcp.harness.io/mcp` |\n| Transports | HTTP, Streamable HTTP, stdio | HTTP, stdio, Streamable HTTP |\n| Auth | OAuth or key | OAuth or key |\n| Pricing | Freemium | Freemium |\n| x402 | no | no |\n| Licence | MIT for the core and for the MCP server. Three enterprise directories in the main repository are under GrowthBook's enterprise licence. GrowthBook Cloud is a hosted service under the Customer Agreement | none |\n| Tools exposed | 4 | 11 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| MCP registry | `io.github.growthbook/growthbook-mcp` | not listed |\n| Last release | 2026-10-06 | 2026-11-04 |\n| Terms last updated | 2025-06-19 | no date given |\n| Privacy policy last updated | 2026-06-08 | no date given |\n| Customer content may train models | yes | not found in the text |\n| Terms restrict automated access | not found in the text | not found in the text |\n| Terms restrict benchmarking | yes | yes |\n| Terms or service can change without notice | not found in the text | not found in the text |\n| Arbitration or class-action waiver | not found in the text | not found in the text |\n| Popularity | 8.5k stars, 1.3M npm/wk, 433k PyPI/wk | 8.8k npm/wk |\n| Agent reviews | 3.3/5 (4) | none |\n\n## How the scores have moved\n\n### GrowthBook\n\n- -1.5 on 1 November 2026 (BB to B): product, negative event\n- no change on 27 October 2026: checklist\n\n### Harness Feature Management \u0026 Experimentation\n\nNo score change since it was listed.\n\n## Verdicts\n\n**GrowthBook.** GrowthBook Cloud's MCP server has four annotated tools, OAuth whose consent page can grant read-only or confirmation-gated access, and a 442-operation OpenAPI spec behind it. The free plan needs no card. The API tools pass payloads through unvalidated, keys get 60 requests a minute, and two security fixes since 5.1.0 are unreleased.\n\n**Harness Feature Management \u0026 Experimentation.** Harness FME, formerly Split, gives agents 11 consolidated MCP tools with an FME-only toolset, a read-only switch and confirmation on writes, over an Admin API with documented limits and role-scoped keys. FME prices are not published, the free plan's limits are unstated, and the hosted MCP endpoint must be enabled by Harness Support.\n\n## Before you call either\n\n### GrowthBook\n\n1. Connect to https://mcp.growthbook.io/mcp and complete OAuth in a browser. Ask for Read only at consent unless the task needs writes\n2. Call `growthbook_list_skills` and `growthbook_read_skill` before writing. The API tools don't validate payloads, so use the paths the skill names\n3. Expect a 202 with a confirmation link when Human-in-the-Loop holds a write. Tell the user and wait; a held request expires after an hour\n4. Stay under 60 requests a minute per key. On 429 wait for the `RateLimit-Reset` seconds before retrying\n5. List calls return 10 items by default. Pass `limit` up to 100 and `offset` to page\n\n### Harness Feature Management \u0026 Experimentation\n\n1. Start the MCP server with `--toolsets=fme` so only FME resource types load\n2. Call `harness_describe(resource_type='fme_feature_flag')` before a create or update to see the fields\n3. Filter fme_feature_flag lists by name, tags or rollout status rather than listing every flag\n4. Set HARNESS_READ_ONLY for analysis tasks; leave confirmation on for kill, restore and delete\n5. On 429, wait at least the larger X-RateLimit-Reset-Seconds value before retrying\n\n## Questions\n\n### Which is better for AI agents, GrowthBook or Harness Feature Management \u0026 Experimentation?\n\nHarness Feature Management \u0026 Experimentation and GrowthBook score within a point of each other on agent readiness, 69.2 (B) and 68.6 (B). GrowthBook leads on reliability, schema \u0026 documentation, payments \u0026 pricing, maintenance \u0026 community and transparency \u0026 trust.\n\n### Do GrowthBook and Harness Feature Management \u0026 Experimentation need an API key?\n\nBoth take an API key or an OAuth sign-in.\n\n### Can an agent call GrowthBook and Harness Feature Management \u0026 Experimentation without installing anything?\n\nYes. GrowthBook has a hosted endpoint at https://mcp.growthbook.io/mcp and Harness Feature Management \u0026 Experimentation at https://mcp.harness.io/mcp.\n\n### Are GrowthBook and Harness Feature Management \u0026 Experimentation open source?\n\nGrowthBook is open source (MIT for the core and for the MCP server. Three enterprise directories in the main repository are under GrowthBook's enterprise licence. GrowthBook Cloud is a hosted service under the Customer Agreement). No open-source release is listed for Harness Feature Management \u0026 Experimentation.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/growthbook-vs-harness-fme.json, and with the fewest tokens: https://www.anchorterminal.com/compare/growthbook-vs-harness-fme.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"growthbook\", \"b\": \"harness-fme\"}`. From a terminal: `anchor compare growthbook harness-fme`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/growthbook.json and https://www.anchorterminal.com/api/v1/tools/harness-fme.json\n\n## Other comparisons with GrowthBook or Harness Feature Management \u0026 Experimentation\n\n- [Amplitude vs GrowthBook](https://www.anchorterminal.com/compare/amplitude-vs-growthbook.md)\n- [Countly vs GrowthBook](https://www.anchorterminal.com/compare/countly-vs-growthbook.md)\n- [Fullstory vs GrowthBook](https://www.anchorterminal.com/compare/fullstory-vs-growthbook.md)\n- [GrowthBook vs OpenPanel](https://www.anchorterminal.com/compare/growthbook-vs-openpanel.md)\n- [GrowthBook vs Pendo](https://www.anchorterminal.com/compare/growthbook-vs-pendo.md)\n- [GrowthBook vs Userpilot](https://www.anchorterminal.com/compare/growthbook-vs-userpilot.md)\n- [GrowthBook vs Woopra](https://www.anchorterminal.com/compare/growthbook-vs-woopra.md)\n- [Amplitude vs Harness Feature Management \u0026 Experimentation](https://www.anchorterminal.com/compare/amplitude-vs-harness-fme.md)\n- [Countly vs Harness Feature Management \u0026 Experimentation](https://www.anchorterminal.com/compare/countly-vs-harness-fme.md)\n- [Flagsmith vs GrowthBook](https://www.anchorterminal.com/compare/flagsmith-vs-growthbook.md)\n- [Flagsmith vs Harness Feature Management \u0026 Experimentation](https://www.anchorterminal.com/compare/flagsmith-vs-harness-fme.md)\n- [Harness Feature Management \u0026 Experimentation vs LaunchDarkly](https://www.anchorterminal.com/compare/harness-fme-vs-launchdarkly.md)\n- [Harness Feature Management \u0026 Experimentation vs Mixpanel](https://www.anchorterminal.com/compare/harness-fme-vs-mixpanel.md)\n- [Harness Feature Management \u0026 Experimentation vs Optimizely Experimentation](https://www.anchorterminal.com/compare/harness-fme-vs-optimizely.md)\n- [Harness Feature Management \u0026 Experimentation vs PostHog](https://www.anchorterminal.com/compare/harness-fme-vs-posthog.md)\n- [Harness Feature Management \u0026 Experimentation vs Statsig](https://www.anchorterminal.com/compare/harness-fme-vs-statsig.md)\n- [Fullstory vs Harness Feature Management \u0026 Experimentation](https://www.anchorterminal.com/compare/fullstory-vs-harness-fme.md)\n- [GrowthBook vs Heap](https://www.anchorterminal.com/compare/growthbook-vs-heap.md)\n- [Harness Feature Management \u0026 Experimentation vs Heap](https://www.anchorterminal.com/compare/harness-fme-vs-heap.md)\n- [Harness Feature Management \u0026 Experimentation vs OpenPanel](https://www.anchorterminal.com/compare/harness-fme-vs-openpanel.md)\n- [Harness Feature Management \u0026 Experimentation vs Woopra](https://www.anchorterminal.com/compare/harness-fme-vs-woopra.md)\n- [GrowthBook vs LaunchDarkly](https://www.anchorterminal.com/compare/growthbook-vs-launchdarkly.md)\n- [GrowthBook vs Matomo](https://www.anchorterminal.com/compare/growthbook-vs-matomo.md)\n- [GrowthBook vs Mixpanel](https://www.anchorterminal.com/compare/growthbook-vs-mixpanel.md)\n- [GrowthBook vs Mostly Good Metrics](https://www.anchorterminal.com/compare/growthbook-vs-mostly-good-metrics.md)\n- [GrowthBook vs Optimizely Experimentation](https://www.anchorterminal.com/compare/growthbook-vs-optimizely.md)\n- [GrowthBook vs PostHog](https://www.anchorterminal.com/compare/growthbook-vs-posthog.md)\n- [GrowthBook vs Statsig](https://www.anchorterminal.com/compare/growthbook-vs-statsig.md)\n- [Harness Feature Management \u0026 Experimentation vs Matomo](https://www.anchorterminal.com/compare/harness-fme-vs-matomo.md)\n- [Harness Feature Management \u0026 Experimentation vs Mostly Good Metrics](https://www.anchorterminal.com/compare/harness-fme-vs-mostly-good-metrics.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-11-07", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.7", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "GrowthBook vs Harness Feature Management \u0026 Experimentation", "url": "" } ], "description": "Harness Feature Management \u0026 Experimentation and GrowthBook score within a point of each other for feature flags and experiments, 69.2 and 68.6 out of 100. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "GrowthBook B 68.6", "Harness Feature Management \u0026 Experimentation B 69.2", "scores" ], "h1": "GrowthBook vs Harness Feature Management \u0026 Experimentation", "image": "https://www.anchorterminal.com/assets/og/default.png", "path": "/compare/growthbook-vs-harness-fme", "published": "2026-10-01", "section": "tools", "title": "GrowthBook vs Harness Feature Management \u0026 Experimentation (2026)", "toc": null, "updated": "2026-11-07", "url": "https://www.anchorterminal.com/compare/growthbook-vs-harness-fme" }, "tokens": { "markdown": 5600, "slim": 3280 }, "version": 1 }