{ "data": { "a": { "slug": "launchdarkly", "name": "LaunchDarkly", "vendor": "Catamorphic, Co. (dba LaunchDarkly)", "vendorUrl": "https://launchdarkly.com", "kind": "http-api", "category": "product-analytics", "summary": "LaunchDarkly is a hosted feature flag and experimentation platform from Catamorphic, Co., with observability and AI configuration products. Agents reach it through an official hosted MCP server with OAuth and a REST API with a public OpenAPI spec.", "url": "https://www.anchorterminal.com/tools/launchdarkly", "markdownUrl": "https://www.anchorterminal.com/tools/launchdarkly.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/launchdarkly.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/launchdarkly.json", "repo": "https://github.com/launchdarkly/mcp-server", "license": "Proprietary service under LaunchDarkly's terms. The local MCP server is MIT and the ldcli CLI is Apache-2.0", "transports": [ "http", "streamable-http", "stdio" ], "remoteUrl": "https://mcp.launchdarkly.com/mcp/launchdarkly", "packages": [ { "registry": "npm", "name": "@launchdarkly/mcp-server" }, { "registry": "npm", "name": "launchdarkly-api" }, { "registry": "pypi", "name": "launchdarkly-api" }, { "registry": "npm", "name": "@launchdarkly/node-server-sdk" }, { "registry": "pypi", "name": "launchdarkly-server-sdk" } ], "auth": "mixed", "authNotes": "Self-serve. The hosted MCP server uses OAuth with PKCE and dynamic client registration, with reader, writer and observability scopes, and acts with the role of the member who approves it. The REST API, the CLI and the local MCP server take an access token in the `Authorization` header. A signed-in member creates the token with a Reader, Writer, Admin or Owner role, and it is shown once. Custom roles and inline policies need a plan with custom roles, and service tokens need Enterprise. SDK keys cannot call the REST API.", "pricing": "freemium", "pricingNotes": "The Developer plan is free with no card and no seat charge, with 5 service connections, 1,000 client-side MAU, 100,000 experimentation MAU and 5,000 AI runs a month. Foundation has a 14-day trial, then bills by usage with no platform fee. Enterprise is custom. API and MCP calls are not billed (https://launchdarkly.com/pricing/, checked 2026-10-08).", "priceSummary": "$10 / mo", "where": "both", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the API docs, the OpenAPI spec or the pricing page (checked 2026-10-08).", "endpoints": [] }, "toolCount": 141, "popularity": { "githubStars": null, "npmWeekly": 3291956, "pypiWeekly": 2207524, "asOf": "2026-10-08" }, "docsUrl": "https://launchdarkly.com/docs/home/getting-started/mcp", "llmsTxt": "https://launchdarkly.com/docs/llms.txt", "openapi": "https://app.launchdarkly.com/api/v2/openapi.json", "capabilities": [ "analytics.flags", "analytics.experiments", "observability.logs", "observability.errors" ], "tags": [ "official", "hosted", "mcp", "oauth", "openapi", "llms-txt", "free-tier", "no-card", "eu-region", "status-page", "soc2", "cli", "typescript", "python" ], "lastRelease": "2026-10-06", "graded": true, "anchor": { "graded": true, "score": 69.2, "grade": "B", "agentReady": false, "rank": 165, "ranked": true, "rankOf": 722, "categoryRank": 3, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 69, "maintenance": 82, "payments": 40, "reliability": 64, "schema": 89, "security": 66, "transparency": 80 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "LaunchDarkly suits agents that manage feature flags, rollouts and experiments. The hosted MCP server uses OAuth with dynamic client registration and marks its tools read-only or destructive, and the Developer plan is free without a card. The server lists 141 tools, numeric rate limits are unpublished, and the web application was unavailable for over an hour on 10 July 2026.", "bestFor": "An agent that creates and targets feature flags, runs rollouts and experiments, reads experiment results and cleans up stale flags.", "strengths": [ "Public OpenAPI 3.0.3 spec with 401 operations, 399 of them described, with 1,853 examples and 429 documented on 287 operations", "Hosted MCP server with OAuth, PKCE, dynamic client registration, a revocation endpoint and reader, writer and observability scopes", "MCP tools cover experiment creation, iteration control and results, flag targeting, approval requests and flag removal readiness", "Developer plan is free with no card, unlimited seats, unlimited flags and 100,000 experimentation MAU a month", "Dated API versions set by header, with a written policy of 12 months' support after a new version" ], "weaknesses": [ "The hosted MCP server lists 141 tools, and no tool filter for it was found in the reviewed documentation", "The API docs say the numeric rate limits are not published and may change", "132 of 401 API operations are beta, need `LD-API-Version: beta` and may change without notice", "On 10 July 2026 the web application was unavailable and flag delivery failed for part of two hours, and some SDKs needed a restart", "Custom roles, inline token policies, service tokens and approvals need an Enterprise plan, and the hosted MCP server is absent from the EU and federal instances" ], "agentNotes": [ "Connect to https://mcp.launchdarkly.com/mcp/launchdarkly over streamable HTTP with OAuth. On the EU or federal instance run the local `@launchdarkly/mcp-server` with `--server-url`", "Authorise with a Reader role or the `reader` scope unless the task writes. A 403 after consent means the member's role lacks access", "Send `LD-API-Version: 20240415` on every REST call, and `LD-API-Version: beta` for beta resources, which answer 403 without it", "Read `X-Ratelimit-Global-Remaining`, `X-Ratelimit-Route-Remaining` and `X-Ratelimit-Reset` on each response, and wait `Retry-After` seconds on an IP limit", "Send `Content-Type: application/json; domain-model=launchdarkly.semanticpatch` for semantic patches, or the body is read as JSON patch and answers 400" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 69.2 } ], "editorialScores": { "ergonomics": 69, "maintenance": 82, "payments": 40, "reliability": 64, "schema": 89, "security": 66, "transparency": 74 }, "provenanceScore": 86 }, "connect": { "install": "npx -y --package @launchdarkly/mcp-server -- mcp start --api-key api-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx", "claudeCode": "claude mcp add --transport http \"launchdarkly\" \"https://mcp.launchdarkly.com/mcp/launchdarkly\"", "config": { "mcpServers": { "launchdarkly": { "type": "http", "url": "https://mcp.launchdarkly.com/mcp/launchdarkly" } } } }, "letme": { "capability": "https://letme.dev/analytics.flags", "tool": "https://letme.dev/launchdarkly" }, "area": "business", "unitPrices": [ { "item": "Foundation, service connection", "unit": "month", "usd": 10, "note": "per connection, billed yearly, first 5 included" }, { "item": "Foundation, client-side MAU", "unit": "user-month", "usd": 0.00833, "note": "$8.33 per 1,000, billed yearly" }, { "item": "Additional AI run", "unit": "tx", "usd": 0.005, "note": "$5 per 1,000 above 5,000 a month" } ], "provenance": { "legalEntity": "Catamorphic, Co. (dba LaunchDarkly)", "domain": "launchdarkly.com", "domainRegistered": "2014-07-15", "endpointOnVendorDomain": true, "terms": "https://launchdarkly.com/policies/subscription-terms/", "privacy": "https://launchdarkly.com/policies/privacy/", "statusPage": "https://status.launchdarkly.com", "changelog": "https://launchdarkly.com/docs/home/changelog", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "The terms of service for Developer and Foundation self-service customers (effective 8 September 2025) name Catamorphic, Co., a Delaware corporation doing business as LaunchDarkly. Enterprise customers have separate terms at https://launchdarkly.com/policies/subscription-terms-enterprise/.", "The privacy policy (effective 8 April 2025) says it does not apply to data LaunchDarkly processes for customers. The data processing addendum at https://launchdarkly.com/policies/data-processing-addendum/ covers that data.", "launchdarkly.com/.well-known/security.txt and app.launchdarkly.com/.well-known/security.txt return 404.", "The MCP server answers on mcp.launchdarkly.com and the API on app.launchdarkly.com. The MCP endpoint's headers name Gram, from Speakeasy, which is on the sub-processor list.", "RDAP for launchdarkly.com gives a registration date of 2014-07-15." ], "score": 86 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/launchdarkly.json", "live": { "slug": "launchdarkly", "probe": { "target": "https://mcp.launchdarkly.com/mcp/launchdarkly", "method": "get", "lastAt": "2026-10-08T19:52:54.107021833Z", "lastOk": true, "lastStatus": 405, "lastMs": 453, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 451, "p95ms24h": 505, "samples24h": 27, "samples30d": 27, "days": [ { "date": "2026-10-08", "probes": 27, "ok": 27 } ] }, "vendorStatus": { "page": "https://status.launchdarkly.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-08T19:50:47.991717422Z" }, "pages": [ { "url": "https://launchdarkly.com/docs/home/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-10-08T18:21:16.320328672Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "74204a4637a3" }, { "url": "https://launchdarkly.com/pricing/", "kind": "pricing", "status": 200, "checkedAt": "2026-10-08T18:21:22.375066872Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "ba2803698c00" }, { "url": "https://launchdarkly.com/policies/privacy/", "kind": "privacy", "status": 200, "checkedAt": "2026-10-08T18:21:18.596393493Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "07aaa0a5b478" }, { "url": "https://launchdarkly.com/policies/subscription-terms/", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:21:20.369550127Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "9ada90ccb172" } ], "updatedAt": "2026-10-08T19:52:54.107021833Z" } }, "answer": "Statsig scores 72.3 (BB) on agent readiness against LaunchDarkly's 69.2 (B), and leads in 3 of 7 scored categories. LaunchDarkly leads on schema \u0026 documentation and transparency \u0026 trust.", "b": { "slug": "statsig", "name": "Statsig", "vendor": "Amplitude, Inc.", "vendorUrl": "https://www.statsig.com", "kind": "http-api", "category": "product-analytics", "summary": "Statsig is a hosted platform for feature flags, experiments and product analytics, run by Amplitude, Inc. since May 2026. Agents reach it through the Console API, which has a public OpenAPI spec, and an official hosted MCP server.", "url": "https://www.anchorterminal.com/tools/statsig", "markdownUrl": "https://www.anchorterminal.com/tools/statsig.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/statsig.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/statsig.json", "repo": "https://github.com/statsig-io/statsig-server-core", "license": "Proprietary hosted service under Statsig's self-service or enterprise terms. The SDKs and the agent skills repository on GitHub are ISC", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.statsig.com/v3/mcp", "packages": [ { "registry": "npm", "name": "@statsig/statsig-node-core" }, { "registry": "npm", "name": "@statsig/js-client" }, { "registry": "pypi", "name": "statsig-python-core" }, { "registry": "npm", "name": "@statsig/siggy" } ], "auth": "mixed", "authNotes": "Self-serve. The Console API takes a Console API key in the `STATSIG-API-KEY` header, created in project settings as read-only or read and write. The MCP server uses OAuth with PKCE and dynamic client registration, which issues a personal Console API key carrying the user's role, or takes a Console key in the `statsig-api-key` header. OAuth needs the organisation owner to allow personal keys for the role. Flag evaluation and event logging take a client or server SDK key.", "pricing": "freemium", "pricingNotes": "Free Developer plan with no card, covering 2 million events and 50,000 session replays a month. Pro is $150 a month with 5 million events, then $0.05 per 1,000 events. Enterprise is by contract. Flag and config checks are unlimited on every plan, and API and MCP calls are not billed. An agent can start on the free plan without a contract (https://www.statsig.com/pricing, checked 2026-10-08).", "priceSummary": "$150 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the docs corpus, the OpenAPI spec or the pricing page (checked 2026-10-08).", "endpoints": [] }, "toolCount": 18, "popularity": { "githubStars": null, "npmWeekly": 4157066, "pypiWeekly": 893619, "asOf": "2026-10-08" }, "docsUrl": "https://docs.statsig.com/console-api/introduction", "llmsTxt": "https://docs.statsig.com/llms.txt", "openapi": "https://api.statsig.com/openapi/20240601.json", "registryName": "com.statsig/statsig-mcp-server", "capabilities": [ "analytics.experiments", "analytics.flags", "analytics.query", "analytics.events" ], "tags": [ "official", "hosted", "mcp", "oauth", "openapi", "llms-txt", "free-tier", "no-card", "status-page", "soc2", "eu-region" ], "lastRelease": "2026-09-28", "graded": true, "anchor": { "graded": true, "score": 72.3, "grade": "BB", "agentReady": true, "rank": 94, "ranked": true, "rankOf": 722, "categoryRank": 1, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 71, "maintenance": 81, "payments": 40, "reliability": 79, "schema": 82, "security": 74, "transparency": 75 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "Statsig suits agents that manage feature gates and experiments and read their results. Its MCP server has 18 default tools, OAuth, read-only access by project and role, and a confirmation on updates. Errors carry only a status and a message, no idempotency keys were found, and the privacy notice is Amplitude's and doesn't name Statsig.", "bestFor": "An agent that creates, updates and cleans up feature gates, dynamic configs and experiments, and reads experiment results and audit history.", "strengths": [ "Hosted MCP server with 18 default tools and a discovery layer that replaced 93 tools on the V1 server", "MCP access set per project and per role as no access, read only or read and write, with a confirmation on updates", "Public OpenAPI 3.0 spec with 325 operations, plus llms.txt and a Markdown copy of every docs page", "Free Developer plan with no card and 2 million events a month, and a public overage price of $0.05 per 1,000 events on Pro", "Audit logs kept indefinitely and readable through the API and the `log_read` MCP tool" ], "weaknesses": [ "Console API errors carry only `status` and `message`, and the spec documents no 429 response", "No idempotency keys were found, and most MCP update tools replace the whole resource", "The project Console API key reads and writes everything in a project unless created read-only", "The privacy notice is Amplitude's, last updated 31 August 2026, and doesn't name Statsig", "The 99.95 per cent SLA needs Enterprise premium support and covers the Console user interface" ], "agentNotes": [ "Connect to https://api.statsig.com/v3/mcp. The official MCP registry entry still lists the V1 URL, which has 93 tools", "Call `get_context` first to learn the project, your permissions and the review settings", "Read the resource before `gate_update`, `experiment_update` or `dynamic_config_update`. They replace the whole resource, so resend every field you want kept", "Use `discover_tools` for partial edits, and fetch a fresh `operationHandle` when one expires", "On a 429 slow down and back off with jitter. Rejected attempts count towards the quota of about 1,800 mutations per 15 minutes" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "BB", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 72.3 } ], "editorialScores": { "ergonomics": 71, "maintenance": 81, "payments": 40, "reliability": 79, "schema": 82, "security": 74, "transparency": 64 }, "provenanceScore": 85 }, "connect": { "claudeCode": "claude mcp add --transport http statsig https://api.statsig.com/v3/mcp", "config": { "mcpServers": { "statsig": { "url": "https://api.statsig.com/v3/mcp" } } } }, "letme": { "capability": "https://letme.dev/analytics.experiments", "tool": "https://letme.dev/statsig" }, "area": "business", "unitPrices": [ { "item": "Pro plan", "unit": "month", "usd": 150, "note": "5 million events and 100,000 session replays included" }, { "item": "Metered event", "unit": "tx", "usd": 0.00005, "note": "Pro plan, above 5 million a month" } ], "provenance": { "legalEntity": "Amplitude, Inc.", "domain": "statsig.com", "domainRegistered": "1998-12-29", "endpointOnVendorDomain": true, "terms": "https://www.statsig.com/terms", "privacy": "https://amplitude.com/privacy", "statusPage": "https://status.statsig.com", "changelog": "https://www.statsig.com/updates", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "The self-service subscription agreement at statsig.com/terms, effective 4 August 2025, names Amplitude, Inc. as the party called Statsig. The enterprise terms (effective 18 February 2026) and the DPA do the same.", "statsig.com/privacy redirects to amplitude.com/privacy, a notice last updated 31 August 2026 that covers Amplitude, Inc. and its affiliates and doesn't name Statsig. It says it does not apply to end-user data that customers send to the product.", "statsig.com/legal/subprocessors redirects to amplitude.com/subprocessor-list, last updated 13 May 2026, which marks the providers used for Statsig-branded services.", "The MCP server answers at api.statsig.com. The Console API answers at statsigapi.net, a second domain the vendor's docs name.", "www.statsig.com/.well-known/security.txt returns 404.", "RDAP for statsig.com gives a registration date of 1998-12-29." ], "score": 85 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/statsig.json", "live": { "slug": "statsig", "probe": { "target": "https://api.statsig.com/v3/mcp", "method": "get", "lastAt": "2026-10-08T19:53:03.084375449Z", "lastOk": true, "lastStatus": 401, "lastMs": 38, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 42, "p95ms24h": 78, "samples24h": 27, "samples30d": 27, "days": [ { "date": "2026-10-08", "probes": 27, "ok": 27 } ] }, "vendorStatus": { "page": "https://status.statsig.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-08T19:51:03.938200412Z" }, "pages": [ { "url": "https://www.statsig.com/updates", "kind": "changelog", "status": 200, "checkedAt": "2026-10-08T18:30:46.247718302Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "3bba7a8e7236" }, { "url": "https://www.statsig.com/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-08T18:30:41.954344318Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "d0e8593f7c0e" }, { "url": "https://www.statsig.com/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:30:44.722171717Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "dc465dc5a41d" } ], "updatedAt": "2026-10-08T19:53:03.084375449Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Catamorphic, Co. (dba LaunchDarkly)", "b": "Amplitude, Inc.", "name": "Vendor" }, { "a": "https://mcp.launchdarkly.com/mcp/launchdarkly", "b": "https://api.statsig.com/v3/mcp", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP, stdio", "b": "HTTP, 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": "Proprietary service under LaunchDarkly's terms. The local MCP server is MIT and the ldcli CLI is Apache-2.0", "b": "Proprietary hosted service under Statsig's self-service or enterprise terms. The SDKs and the agent skills repository on GitHub are ISC", "name": "Licence" }, { "a": "141", "b": "18", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "not listed", "b": "com.statsig/statsig-mcp-server", "name": "MCP registry" }, { "a": "2026-10-06", "b": "2026-09-28", "name": "Last release" }, { "a": "2025-09-08", "b": "2025-08-04", "name": "Terms last updated" }, { "a": "2025-04-08", "b": "2026-08-31", "name": "Privacy policy last updated" }, { "a": "not found in the text", "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": "yes", "name": "Terms or service can change without notice" }, { "a": "not found in the text", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "3.3M npm/wk, 2.2M PyPI/wk", "b": "4.2M npm/wk, 894k PyPI/wk", "name": "Popularity" } ], "faq": [ { "answer": "Statsig scores 72.3 (BB) on agent readiness against LaunchDarkly's 69.2 (B), and leads in 3 of 7 scored categories. LaunchDarkly leads on schema \u0026 documentation and transparency \u0026 trust.", "question": "Which is better for AI agents, LaunchDarkly or Statsig?" }, { "answer": "Both take an API key or an OAuth sign-in.", "question": "Do LaunchDarkly and Statsig need an API key?" }, { "answer": "Yes. LaunchDarkly has a hosted endpoint at https://mcp.launchdarkly.com/mcp/launchdarkly and Statsig at https://api.statsig.com/v3/mcp.", "question": "Can an agent call LaunchDarkly and Statsig without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Schema \u0026 documentation, 89 against 82", "Transparency \u0026 trust, 80 against 75" ], "also": [ "Runs on your own machine" ], "goodFor": "An agent that creates and targets feature flags, runs rollouts and experiments, reads experiment results and cleans up stale flags.", "slug": "launchdarkly", "watchFor": "The hosted MCP server lists 141 tools, and no tool filter for it was found in the reviewed documentation" }, { "aheadOn": [ "Reliability, 79 against 64", "Security \u0026 auth, 74 against 66" ], "also": [ "Agent-ready, a grade of BB or better" ], "goodFor": "An agent that creates, updates and cleans up feature gates, dynamic configs and experiments, and reads experiment results and audit history.", "slug": "statsig", "watchFor": "Console API errors carry only `status` and `message`, and the spec documents no 429 response" } ], "job": { "capability": "analytics.flags", "name": "Analytics flags" }, "others": [ { "json": "https://www.anchorterminal.com/compare/amplitude-vs-statsig.json", "title": "Amplitude vs Statsig", "url": "https://www.anchorterminal.com/compare/amplitude-vs-statsig" }, { "json": "https://www.anchorterminal.com/compare/fullstory-vs-statsig.json", "title": "Fullstory vs Statsig", "url": "https://www.anchorterminal.com/compare/fullstory-vs-statsig" }, { "json": "https://www.anchorterminal.com/compare/mixpanel-vs-statsig.json", "title": "Mixpanel vs Statsig", "url": "https://www.anchorterminal.com/compare/mixpanel-vs-statsig" }, { "json": "https://www.anchorterminal.com/compare/pendo-vs-statsig.json", "title": "Pendo vs Statsig", "url": "https://www.anchorterminal.com/compare/pendo-vs-statsig" }, { "json": "https://www.anchorterminal.com/compare/posthog-vs-statsig.json", "title": "PostHog vs Statsig", "url": "https://www.anchorterminal.com/compare/posthog-vs-statsig" }, { "json": "https://www.anchorterminal.com/compare/heap-vs-statsig.json", "title": "Heap vs Statsig", "url": "https://www.anchorterminal.com/compare/heap-vs-statsig" }, { "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-statsig.json", "title": "GrowthBook vs Statsig", "url": "https://www.anchorterminal.com/compare/growthbook-vs-statsig" }, { "json": "https://www.anchorterminal.com/compare/optimizely-vs-statsig.json", "title": "Optimizely Experimentation vs Statsig", "url": "https://www.anchorterminal.com/compare/optimizely-vs-statsig" }, { "json": "https://www.anchorterminal.com/compare/amplitude-vs-launchdarkly.json", "title": "Amplitude vs LaunchDarkly", "url": "https://www.anchorterminal.com/compare/amplitude-vs-launchdarkly" }, { "json": "https://www.anchorterminal.com/compare/launchdarkly-vs-mixpanel.json", "title": "LaunchDarkly vs Mixpanel", "url": "https://www.anchorterminal.com/compare/launchdarkly-vs-mixpanel" }, { "json": "https://www.anchorterminal.com/compare/launchdarkly-vs-optimizely.json", "title": "LaunchDarkly vs Optimizely Experimentation", "url": "https://www.anchorterminal.com/compare/launchdarkly-vs-optimizely" }, { "json": "https://www.anchorterminal.com/compare/launchdarkly-vs-posthog.json", "title": "LaunchDarkly vs PostHog", "url": "https://www.anchorterminal.com/compare/launchdarkly-vs-posthog" } ], "scores": [ { "by": 15, "edge": "statsig", "key": "reliability", "launchdarkly": 64, "name": "Reliability", "statsig": 79, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 7, "edge": "launchdarkly", "key": "schema", "launchdarkly": 89, "name": "Schema \u0026 documentation", "statsig": 82, "weight": 13 }, { "by": 2, "edge": "statsig", "key": "ergonomics", "launchdarkly": 69, "name": "Agent ergonomics", "statsig": 71, "weight": 13 }, { "by": 8, "edge": "statsig", "key": "security", "launchdarkly": 66, "name": "Security \u0026 auth", "statsig": 74, "weight": 14 }, { "by": 0, "edge": "", "key": "payments", "launchdarkly": 40, "name": "Payments \u0026 pricing", "statsig": 40, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 1, "edge": "launchdarkly", "key": "maintenance", "launchdarkly": 82, "name": "Maintenance \u0026 community", "statsig": 81, "weight": 7 }, { "by": 5, "edge": "launchdarkly", "key": "transparency", "launchdarkly": 80, "name": "Transparency \u0026 trust", "statsig": 75, "weight": 7 } ], "summary": "Statsig scores 72.3 (BB) on agent readiness against LaunchDarkly's 69.2 (B), and leads in 3 of 7 scored categories. LaunchDarkly leads on schema \u0026 documentation and transparency \u0026 trust. Both do analytics flags.", "verdicts": { "launchdarkly": "LaunchDarkly suits agents that manage feature flags, rollouts and experiments. The hosted MCP server uses OAuth with dynamic client registration and marks its tools read-only or destructive, and the Developer plan is free without a card. The server lists 141 tools, numeric rate limits are unpublished, and the web application was unavailable for over an hour on 10 July 2026.", "statsig": "Statsig suits agents that manage feature gates and experiments and read their results. Its MCP server has 18 default tools, OAuth, read-only access by project and role, and a confirmation on updates. Errors carry only a status and a message, no idempotency keys were found, and the privacy notice is Amplitude's and doesn't name Statsig." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/launchdarkly-vs-statsig", "json": "https://www.anchorterminal.com/compare/launchdarkly-vs-statsig.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/launchdarkly-vs-statsig.md", "slim": "https://www.anchorterminal.com/compare/launchdarkly-vs-statsig.min.md" }, "markdown": "Statsig scores 72.3 (BB) on agent readiness against LaunchDarkly's 69.2 (B), and leads in 3 of 7 scored categories. LaunchDarkly leads on schema \u0026 documentation and transparency \u0026 trust. Both do analytics flags.\n\n- LaunchDarkly: grade B, 69.2/100, rank #165 of 722. Markdown https://www.anchorterminal.com/tools/launchdarkly.md · JSON https://www.anchorterminal.com/api/v1/tools/launchdarkly.json\n- Statsig: grade BB, 72.3/100, rank #94 of 722. Markdown https://www.anchorterminal.com/tools/statsig.md · JSON https://www.anchorterminal.com/api/v1/tools/statsig.json\n\n## Which one, for what\n\n### LaunchDarkly (B)\n\nGood for: An agent that creates and targets feature flags, runs rollouts and experiments, reads experiment results and cleans up stale flags.\n\nAhead on:\n- Schema \u0026 documentation, 89 against 82\n- Transparency \u0026 trust, 80 against 75\n\nAlso in its favour:\n- Runs on your own machine\n\nWatch for: The hosted MCP server lists 141 tools, and no tool filter for it was found in the reviewed documentation\n\n### Statsig (BB)\n\nGood for: An agent that creates, updates and cleans up feature gates, dynamic configs and experiments, and reads experiment results and audit history.\n\nAhead on:\n- Reliability, 79 against 64\n- Security \u0026 auth, 74 against 66\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n\nWatch for: Console API errors carry only `status` and `message`, and the spec documents no 429 response\n\n\n## Score by category\n\n| Category | Weight | LaunchDarkly | Statsig | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 64 | 79 | Statsig +15 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 89 | 82 | LaunchDarkly +7 |\n| Agent ergonomics | 13% (16.2 this run) | 69 | 71 | Statsig +2 |\n| Security \u0026 auth | 14% (17.5 this run) | 66 | 74 | Statsig +8 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 40 | 40 | even |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 82 | 81 | LaunchDarkly +1 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 80 | 75 | LaunchDarkly +5 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **69.2 · B** | **72.3 · BB** | |\n\n## Facts side by side\n\n| Fact | LaunchDarkly | Statsig |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Catamorphic, Co. (dba LaunchDarkly) | Amplitude, Inc. |\n| Hosted endpoint | `https://mcp.launchdarkly.com/mcp/launchdarkly` | `https://api.statsig.com/v3/mcp` |\n| Transports | HTTP, Streamable HTTP, stdio | HTTP, Streamable HTTP |\n| Auth | OAuth or key | OAuth or key |\n| Pricing | Freemium | Freemium |\n| x402 | no | no |\n| Licence | Proprietary service under LaunchDarkly's terms. The local MCP server is MIT and the ldcli CLI is Apache-2.0 | Proprietary hosted service under Statsig's self-service or enterprise terms. The SDKs and the agent skills repository on GitHub are ISC |\n| Tools exposed | 141 | 18 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| MCP registry | not listed | `com.statsig/statsig-mcp-server` |\n| Last release | 2026-10-06 | 2026-09-28 |\n| Terms last updated | 2025-09-08 | 2025-08-04 |\n| Privacy policy last updated | 2025-04-08 | 2026-08-31 |\n| Customer content may train models | not found in the text | 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 | yes |\n| Arbitration or class-action waiver | not found in the text | yes |\n| Popularity | 3.3M npm/wk, 2.2M PyPI/wk | 4.2M npm/wk, 894k PyPI/wk |\n\n## Verdicts\n\n**LaunchDarkly.** LaunchDarkly suits agents that manage feature flags, rollouts and experiments. The hosted MCP server uses OAuth with dynamic client registration and marks its tools read-only or destructive, and the Developer plan is free without a card. The server lists 141 tools, numeric rate limits are unpublished, and the web application was unavailable for over an hour on 10 July 2026.\n\n**Statsig.** Statsig suits agents that manage feature gates and experiments and read their results. Its MCP server has 18 default tools, OAuth, read-only access by project and role, and a confirmation on updates. Errors carry only a status and a message, no idempotency keys were found, and the privacy notice is Amplitude's and doesn't name Statsig.\n\n## Before you call either\n\n### LaunchDarkly\n\n1. Connect to https://mcp.launchdarkly.com/mcp/launchdarkly over streamable HTTP with OAuth. On the EU or federal instance run the local `@launchdarkly/mcp-server` with `--server-url`\n2. Authorise with a Reader role or the `reader` scope unless the task writes. A 403 after consent means the member's role lacks access\n3. Send `LD-API-Version: 20240415` on every REST call, and `LD-API-Version: beta` for beta resources, which answer 403 without it\n4. Read `X-Ratelimit-Global-Remaining`, `X-Ratelimit-Route-Remaining` and `X-Ratelimit-Reset` on each response, and wait `Retry-After` seconds on an IP limit\n5. Send `Content-Type: application/json; domain-model=launchdarkly.semanticpatch` for semantic patches, or the body is read as JSON patch and answers 400\n\n### Statsig\n\n1. Connect to https://api.statsig.com/v3/mcp. The official MCP registry entry still lists the V1 URL, which has 93 tools\n2. Call `get_context` first to learn the project, your permissions and the review settings\n3. Read the resource before `gate_update`, `experiment_update` or `dynamic_config_update`. They replace the whole resource, so resend every field you want kept\n4. Use `discover_tools` for partial edits, and fetch a fresh `operationHandle` when one expires\n5. On a 429 slow down and back off with jitter. Rejected attempts count towards the quota of about 1,800 mutations per 15 minutes\n\n## Questions\n\n### Which is better for AI agents, LaunchDarkly or Statsig?\n\nStatsig scores 72.3 (BB) on agent readiness against LaunchDarkly's 69.2 (B), and leads in 3 of 7 scored categories. LaunchDarkly leads on schema \u0026 documentation and transparency \u0026 trust.\n\n### Do LaunchDarkly and Statsig need an API key?\n\nBoth take an API key or an OAuth sign-in.\n\n### Can an agent call LaunchDarkly and Statsig without installing anything?\n\nYes. LaunchDarkly has a hosted endpoint at https://mcp.launchdarkly.com/mcp/launchdarkly and Statsig at https://api.statsig.com/v3/mcp.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/launchdarkly-vs-statsig.json, and with the fewest tokens: https://www.anchorterminal.com/compare/launchdarkly-vs-statsig.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"launchdarkly\", \"b\": \"statsig\"}`. From a terminal: `anchor compare launchdarkly statsig`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/launchdarkly.json and https://www.anchorterminal.com/api/v1/tools/statsig.json\n\n## Other comparisons with LaunchDarkly or Statsig\n\n- [Amplitude vs Statsig](https://www.anchorterminal.com/compare/amplitude-vs-statsig.md)\n- [Fullstory vs Statsig](https://www.anchorterminal.com/compare/fullstory-vs-statsig.md)\n- [Mixpanel vs Statsig](https://www.anchorterminal.com/compare/mixpanel-vs-statsig.md)\n- [Pendo vs Statsig](https://www.anchorterminal.com/compare/pendo-vs-statsig.md)\n- [PostHog vs Statsig](https://www.anchorterminal.com/compare/posthog-vs-statsig.md)\n- [Heap vs Statsig](https://www.anchorterminal.com/compare/heap-vs-statsig.md)\n- [GrowthBook vs LaunchDarkly](https://www.anchorterminal.com/compare/growthbook-vs-launchdarkly.md)\n- [GrowthBook vs Statsig](https://www.anchorterminal.com/compare/growthbook-vs-statsig.md)\n- [Optimizely Experimentation vs Statsig](https://www.anchorterminal.com/compare/optimizely-vs-statsig.md)\n- [Amplitude vs LaunchDarkly](https://www.anchorterminal.com/compare/amplitude-vs-launchdarkly.md)\n- [LaunchDarkly vs Mixpanel](https://www.anchorterminal.com/compare/launchdarkly-vs-mixpanel.md)\n- [LaunchDarkly vs Optimizely Experimentation](https://www.anchorterminal.com/compare/launchdarkly-vs-optimizely.md)\n- [LaunchDarkly vs PostHog](https://www.anchorterminal.com/compare/launchdarkly-vs-posthog.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-08", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "LaunchDarkly vs Statsig", "url": "" } ], "description": "Statsig scores 72.3 (BB) on agent readiness against LaunchDarkly's 69.2 (B), and leads in 3 of 7 scored categories. LaunchDarkly leads on schema \u0026 documentation and transparency \u0026 trust. Both do analytics flags. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "LaunchDarkly B 69.2", "Statsig BB 72.3", "scores" ], "h1": "LaunchDarkly vs Statsig", "image": "https://www.anchorterminal.com/assets/og/compare-launchdarkly-vs-statsig.png", "path": "/compare/launchdarkly-vs-statsig", "published": "2026-10-01", "section": "tools", "title": "LaunchDarkly vs Statsig for AI agents, B 69.2 vs BB 72.3", "toc": null, "updated": "2026-10-08", "url": "https://www.anchorterminal.com/compare/launchdarkly-vs-statsig" }, "tokens": { "markdown": 2250, "slim": 730 }, "version": 1 }