{
  "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",
      "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": 70.1,
        "grade": "BB",
        "agentReady": true,
        "rank": 142,
        "ranked": true,
        "rankOf": 722,
        "categoryRank": 2,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 76,
          "maintenance": 89,
          "payments": 40,
          "reliability": 86,
          "schema": 76,
          "security": 68,
          "transparency": 74
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": -3,
        "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)."
        ],
        "verdict": "GrowthBook Cloud's MCP server has four tools with read and write annotations, OAuth with dynamic client registration, and a 414-operation OpenAPI spec behind it. The free plan needs no card. The API tools pass paths and JSON bodies through without validation, every key is limited to 60 requests a minute, and audit logs are Enterprise only.",
        "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 with PKCE, dynamic client registration, refresh and revocation on GrowthBook Cloud, so no API key sits in the MCP config",
          "Public OpenAPI 3.1 spec with 306 paths and 414 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",
          "MIT core with a self-hosted option, and the same MCP server published on npm and as a Docker image"
        ],
        "weaknesses": [
          "The API tools take a path and a JSON string and don't validate payloads, so correct calls depend on the bundled skills",
          "API keys are limited to 60 requests a minute on Cloud, and no idempotency keys were found",
          "Audit logging is an Enterprise feature, and Free plan members can only hold the Admin role",
          "The Customer Agreement grants GrowthBook a right to use Customer Data to train its AI algorithms, and no opt-out was found",
          "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. Use https://mcp.growthbook.io/mcp/api for the two API tools alone",
          "Call `growthbook_list_skills` and `growthbook_read_skill` before writing. The API tools don't validate payloads, so use the paths the skill names",
          "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",
          "A 422 is a soft warning. Resubmit with `?ignoreWarnings=true` only after reading the message"
        ],
        "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": 70.1
          }
        ],
        "editorialScores": {
          "ergonomics": 76,
          "maintenance": 89,
          "payments": 40,
          "reliability": 86,
          "schema": 76,
          "security": 68,
          "transparency": 66
        },
        "provenanceScore": 81
      },
      "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": "2026-10-08",
        "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. 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": 81
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/growthbook.json",
      "live": {
        "slug": "growthbook",
        "probe": {
          "target": "https://mcp.growthbook.io/mcp",
          "method": "get",
          "lastAt": "2026-10-08T20:21:15.18576046Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 272,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 254,
          "p95ms24h": 337,
          "samples24h": 32,
          "samples30d": 32,
          "days": [
            {
              "date": "2026-10-08",
              "probes": 32,
              "ok": 32
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.growthbook.io",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-08T19:38:39.1501551Z"
        },
        "pages": [
          {
            "url": "https://www.growthbook.io/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-08T18:28:10.646220771Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "aa2bc7a1a779"
          },
          {
            "url": "https://www.growthbook.io/legal/privacy-notice",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:28:08.637436983Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "e574320b3fc5"
          },
          {
            "url": "https://www.growthbook.io/legal/customer-agreement",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:28:06.588048036Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "d5b28f2fb91f"
          }
        ],
        "updatedAt": "2026-10-08T20:21:15.18576046Z"
      }
    },
    "answer": "Statsig scores 72.3 (BB) on agent readiness against GrowthBook's 70.1 (BB), and leads in 3 of 7 scored categories. GrowthBook leads on reliability, agent ergonomics and maintenance \u0026 community.",
    "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": "2026-10-08T20:21:29.061465301Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 44,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 42,
          "p95ms24h": 78,
          "samples24h": 32,
          "samples30d": 32,
          "days": [
            {
              "date": "2026-10-08",
              "probes": 32,
              "ok": 32
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.statsig.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-08T20:22:54.192728985Z"
        },
        "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": "2026-10-08T20:22:54.192728985Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "GrowthBook, Inc.",
        "b": "Amplitude, Inc.",
        "name": "Vendor"
      },
      {
        "a": "https://mcp.growthbook.io/mcp",
        "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": "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": "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": "4",
        "b": "18",
        "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": "com.statsig/statsig-mcp-server",
        "name": "MCP registry"
      },
      {
        "a": "2026-10-06",
        "b": "2026-09-28",
        "name": "Last release"
      },
      {
        "a": "2025-06-19",
        "b": "2025-08-04",
        "name": "Terms last updated"
      },
      {
        "a": "2026-06-08",
        "b": "2026-08-31",
        "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": "yes",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "not found in the text",
        "b": "yes",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "8.5k stars, 1.3M npm/wk, 433k PyPI/wk",
        "b": "4.2M npm/wk, 894k PyPI/wk",
        "name": "Popularity"
      }
    ],
    "faq": [
      {
        "answer": "Statsig scores 72.3 (BB) on agent readiness against GrowthBook's 70.1 (BB), and leads in 3 of 7 scored categories. GrowthBook leads on reliability, agent ergonomics and maintenance \u0026 community.",
        "question": "Which is better for AI agents, GrowthBook or Statsig?"
      },
      {
        "answer": "Both take an API key or an OAuth sign-in.",
        "question": "Do GrowthBook and Statsig need an API key?"
      },
      {
        "answer": "Yes. GrowthBook has a hosted endpoint at https://mcp.growthbook.io/mcp and Statsig at https://api.statsig.com/v3/mcp.",
        "question": "Can an agent call GrowthBook and Statsig 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 Statsig.",
        "question": "Are GrowthBook and Statsig open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Reliability, 86 against 79",
          "Agent ergonomics, 76 against 71",
          "Maintenance \u0026 community, 89 against 81"
        ],
        "also": [
          "Runs on your own machine",
          "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": [
          "Schema \u0026 documentation, 82 against 76",
          "Security \u0026 auth, 74 against 68"
        ],
        "also": [
          "No incidents deducted, where GrowthBook loses 3 points for them"
        ],
        "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.experiments",
      "name": "Analytics 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/amplitude-vs-statsig.json",
        "title": "Amplitude vs Statsig",
        "url": "https://www.anchorterminal.com/compare/amplitude-vs-statsig"
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      {
        "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/fullstory-vs-statsig.json",
        "title": "Fullstory vs Statsig",
        "url": "https://www.anchorterminal.com/compare/fullstory-vs-statsig"
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      {
        "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/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/growthbook-vs-heap.json",
        "title": "GrowthBook vs Heap",
        "url": "https://www.anchorterminal.com/compare/growthbook-vs-heap"
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        "title": "Heap vs Statsig",
        "url": "https://www.anchorterminal.com/compare/heap-vs-statsig"
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        "json": "https://www.anchorterminal.com/compare/growthbook-vs-launchdarkly.json",
        "title": "GrowthBook vs LaunchDarkly",
        "url": "https://www.anchorterminal.com/compare/growthbook-vs-launchdarkly"
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      {
        "json": "https://www.anchorterminal.com/compare/growthbook-vs-mixpanel.json",
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        "url": "https://www.anchorterminal.com/compare/growthbook-vs-mixpanel"
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      {
        "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",
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      },
      {
        "json": "https://www.anchorterminal.com/compare/optimizely-vs-statsig.json",
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        "url": "https://www.anchorterminal.com/compare/optimizely-vs-statsig"
      },
      {
        "json": "https://www.anchorterminal.com/compare/launchdarkly-vs-statsig.json",
        "title": "LaunchDarkly vs Statsig",
        "url": "https://www.anchorterminal.com/compare/launchdarkly-vs-statsig"
      }
    ],
    "scores": [
      {
        "by": 7,
        "edge": "growthbook",
        "growthbook": 86,
        "key": "reliability",
        "name": "Reliability",
        "statsig": 79,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 6,
        "edge": "statsig",
        "growthbook": 76,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "statsig": 82,
        "weight": 13
      },
      {
        "by": 5,
        "edge": "growthbook",
        "growthbook": 76,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "statsig": 71,
        "weight": 13
      },
      {
        "by": 6,
        "edge": "statsig",
        "growthbook": 68,
        "key": "security",
        "name": "Security \u0026 auth",
        "statsig": 74,
        "weight": 14
      },
      {
        "by": 0,
        "edge": "",
        "growthbook": 40,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "statsig": 40,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 8,
        "edge": "growthbook",
        "growthbook": 89,
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "statsig": 81,
        "weight": 7
      },
      {
        "by": 1,
        "edge": "statsig",
        "growthbook": 74,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "statsig": 75,
        "weight": 7
      }
    ],
    "summary": "Statsig scores 72.3 (BB) on agent readiness against GrowthBook's 70.1 (BB), and leads in 3 of 7 scored categories. GrowthBook leads on reliability, agent ergonomics and maintenance \u0026 community. Both do analytics experiments.",
    "verdicts": {
      "growthbook": "GrowthBook Cloud's MCP server has four tools with read and write annotations, OAuth with dynamic client registration, and a 414-operation OpenAPI spec behind it. The free plan needs no card. The API tools pass paths and JSON bodies through without validation, every key is limited to 60 requests a minute, and audit logs are Enterprise only.",
      "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."
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  "markdown": "Statsig scores 72.3 (BB) on agent readiness against GrowthBook's 70.1 (BB), and leads in 3 of 7 scored categories. GrowthBook leads on reliability, agent ergonomics and maintenance \u0026 community. Both do analytics experiments.\n\n- GrowthBook: grade BB, 70.1/100, rank #142 of 722. Markdown https://www.anchorterminal.com/tools/growthbook.md · JSON https://www.anchorterminal.com/api/v1/tools/growthbook.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### GrowthBook (BB)\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 79\n- Agent ergonomics, 76 against 71\n- Maintenance \u0026 community, 89 against 81\n\nAlso in its favour:\n- Runs on your own machine\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### 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- Schema \u0026 documentation, 82 against 76\n- Security \u0026 auth, 74 against 68\n\nAlso in its favour:\n- No incidents deducted, where GrowthBook loses 3 points for them\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 | GrowthBook | Statsig | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 86 | 79 | GrowthBook +7 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 76 | 82 | Statsig +6 |\n| Agent ergonomics | 13% (16.2 this run) | 76 | 71 | GrowthBook +5 |\n| Security \u0026 auth | 14% (17.5 this run) | 68 | 74 | Statsig +6 |\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) | 89 | 81 | GrowthBook +8 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 74 | 75 | Statsig +1 |\n| Negative events | ≤15 | -3 | 0 | |\n| **Total** | | **70.1 · BB** | **72.3 · BB** | |\n\n## Facts side by side\n\n| Fact | GrowthBook | Statsig |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | GrowthBook, Inc. | Amplitude, Inc. |\n| Hosted endpoint | `https://mcp.growthbook.io/mcp` | `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 | 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 | 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 | 4 | 18 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| MCP registry | `io.github.growthbook/growthbook-mcp` | `com.statsig/statsig-mcp-server` |\n| Last release | 2026-10-06 | 2026-09-28 |\n| Terms last updated | 2025-06-19 | 2025-08-04 |\n| Privacy policy last updated | 2026-06-08 | 2026-08-31 |\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 | yes |\n| Arbitration or class-action waiver | not found in the text | yes |\n| Popularity | 8.5k stars, 1.3M npm/wk, 433k PyPI/wk | 4.2M npm/wk, 894k PyPI/wk |\n\n## Verdicts\n\n**GrowthBook.** GrowthBook Cloud's MCP server has four tools with read and write annotations, OAuth with dynamic client registration, and a 414-operation OpenAPI spec behind it. The free plan needs no card. The API tools pass paths and JSON bodies through without validation, every key is limited to 60 requests a minute, and audit logs are Enterprise only.\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### GrowthBook\n\n1. Connect to https://mcp.growthbook.io/mcp and complete OAuth in a browser. Use https://mcp.growthbook.io/mcp/api for the two API tools alone\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. Stay under 60 requests a minute per key. On 429 wait for the `RateLimit-Reset` seconds before retrying\n4. List calls return 10 items by default. Pass `limit` up to 100 and `offset` to page\n5. A 422 is a soft warning. Resubmit with `?ignoreWarnings=true` only after reading the message\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, GrowthBook or Statsig?\n\nStatsig scores 72.3 (BB) on agent readiness against GrowthBook's 70.1 (BB), and leads in 3 of 7 scored categories. GrowthBook leads on reliability, agent ergonomics and maintenance \u0026 community.\n\n### Do GrowthBook and Statsig need an API key?\n\nBoth take an API key or an OAuth sign-in.\n\n### Can an agent call GrowthBook and Statsig without installing anything?\n\nYes. GrowthBook has a hosted endpoint at https://mcp.growthbook.io/mcp and Statsig at https://api.statsig.com/v3/mcp.\n\n### Are GrowthBook and Statsig 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 Statsig.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/growthbook-vs-statsig.json, and with the fewest tokens: https://www.anchorterminal.com/compare/growthbook-vs-statsig.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"growthbook\", \"b\": \"statsig\"}`. From a terminal: `anchor compare growthbook statsig`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/growthbook.json and https://www.anchorterminal.com/api/v1/tools/statsig.json\n\n## Other comparisons with GrowthBook or Statsig\n\n- [Amplitude vs GrowthBook](https://www.anchorterminal.com/compare/amplitude-vs-growthbook.md)\n- [Amplitude vs Statsig](https://www.anchorterminal.com/compare/amplitude-vs-statsig.md)\n- [Fullstory vs GrowthBook](https://www.anchorterminal.com/compare/fullstory-vs-growthbook.md)\n- [Fullstory vs Statsig](https://www.anchorterminal.com/compare/fullstory-vs-statsig.md)\n- [GrowthBook vs Pendo](https://www.anchorterminal.com/compare/growthbook-vs-pendo.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- [GrowthBook vs Heap](https://www.anchorterminal.com/compare/growthbook-vs-heap.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 Mixpanel](https://www.anchorterminal.com/compare/growthbook-vs-mixpanel.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- [Optimizely Experimentation vs Statsig](https://www.anchorterminal.com/compare/optimizely-vs-statsig.md)\n- [LaunchDarkly vs Statsig](https://www.anchorterminal.com/compare/launchdarkly-vs-statsig.md)\n",
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    "description": "Statsig scores 72.3 (BB) on agent readiness against GrowthBook's 70.1 (BB), and leads in 3 of 7 scored categories. GrowthBook leads on reliability, agent ergonomics and maintenance \u0026 community. Both do analytics experiments. Category scores, facts, verdicts and agent notes side…",
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    "title": "GrowthBook vs Statsig for AI agents, BB 70.1 vs BB 72.3",
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