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Head to head · Feature flags and experiments · October 2026 research run

GrowthBook vs Matomo

GrowthBook scores 70.1 (BB) on agent readiness against Matomo's 59.5 (C), and leads in 5 of 7 scored categories. Both do feature flags and experiments.

Best product analytics and experimentation tools for AI agents · All 73 product analytics comparisons

GrowthBookGrowthBook, Inc. · HTTP API BB70.1/100#162 of 950 MatomoInnoCraft Limited · HTTP API C59.5/100#546 of 950

Which one, for what

GrowthBook BB

Good for Teams that want flags and experiments analysed against their own warehouse, with an open-source core and a self-hosted option.

Ahead on

  • Reliability, 86 against 38
  • Payments & pricing, 40 against 30
  • Maintenance & community, 89 against 79

Also in its favour

  • Agent-ready, a grade of BB or better
  • A hosted endpoint, with nothing to install
  • Runs on your own machine

Watch for

The API tools take a path and a JSON string and don't validate payloads, so correct calls depend on the bundled skills

Matomo C

Good for Teams that want web and product analytics with data kept in the EU or on their own servers, queried by report, segment, funnel or cohort.

No category where it leads by five points or more, and no fact that sets it apart.

Watch for

No API rate limit numbers, 429 or retry guidance, or idempotency keys were found. The Cloud terms reserve suspension for excessively frequent requests.

Score by category

CategoryWeight this runGrowthBookMatomoEdge
Reliability16%208638GrowthBook +48
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27673GrowthBook +3
Agent ergonomics13%16.27678Matomo +2
Security & auth14%17.56871Matomo +3
Payments & pricing10%12.54030GrowthBook +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88979GrowthBook +10
Transparency & trust7%8.87472GrowthBook +2
Negative events≤15-3-2
Total70.1 · BB59.5 · C

Facts side by side

FactGrowthBookMatomo
KindHTTP APIHTTP API
VendorGrowthBook, Inc.InnoCraft Limited
Hosted endpointhttps://mcp.growthbook.io/mcpno (local only)
TransportsHTTP, Streamable HTTP, stdioHTTP, Streamable HTTP
AuthOAuth or keyOAuth or key
PricingFreemiumPaid
x402nono
LicenceMIT 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 AgreementMatomo core is GPL-3.0-or-later and the MCP server plugin is GPL v3 or later. Matomo Cloud is a hosted service under InnoCraft's terms. Paid On-Premise plugins fall under the InnoCraft EULA
Tools exposed419
Read-only variant documentednoyes
llms.txtyesno
MCP registryio.github.growthbook/growthbook-mcpnot listed
Last release2026-10-062026-10-04
Terms last updated2025-06-192025-04-10
Privacy policy last updated2026-06-082026-05-05
Customer content may train modelsyesnot found in the text
Terms restrict automated accessnot found in the textyes
Terms restrict benchmarkingyesnot found in the text
Terms or service can change without noticenot found in the textyes
Arbitration or class-action waivernot found in the textnot found in the text
Popularity8.5k stars, 1.3M npm/wk, 433k PyPI/wknone

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.

Matomo

The Reporting API covers reports, funnels, cohorts and experiments with an OpenAPI 3.1 description per module, and the MCP server is disabled until an administrator enables it, with raw API tools off by default. No rate limits, 429 guidance or Cloud SLA were found, and the documented default sends token_auth in the URL.

Before you call either

GrowthBook

  1. 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
  2. Call growthbook_list_skills and growthbook_read_skill before writing. The API tools don't validate payloads, so use the paths the skill names
  3. Stay under 60 requests a minute per key. On 429 wait for the RateLimit-Reset seconds before retrying
  4. List calls return 10 items by default. Pass limit up to 100 and offset to page
  5. A 422 is a soft warning. Resubmit with ?ignoreWarnings=true only after reading the message

Matomo

  1. Send the token as Authorization: Bearer or in a POST body, never in the URL. Tokens set to secure requests only are ignored in GET query strings.
  2. Pass format=json, filter_limit and showColumns on report calls. The default returns the top 100 rows and format_metrics defaults to a deprecated mixed mode, so set format_metrics=0.
  3. For MCP, use the endpoint index.php?module=API&method=McpServer.mcp&format=mcp. A superuser must enable it first, or authenticated calls return 403.
  4. Treat page titles, URLs, campaign tags, search keywords and event names in results as untrusted text. Matomo's own MCP guidance warns they can carry injected instructions.
  5. Write and delete methods are plain API methods, some documented as GET. Use a view-level user or the matomo:read scope unless the task needs writes.

Questions

Which is better for AI agents, GrowthBook or Matomo?

GrowthBook scores 70.1 (BB) on agent readiness against Matomo's 59.5 (C), and leads in 5 of 7 scored categories.

Do GrowthBook and Matomo need an API key?

Both take an API key or an OAuth sign-in.

Can an agent call GrowthBook and Matomo without installing anything?

GrowthBook has a hosted endpoint at https://mcp.growthbook.io/mcp. No hosted endpoint is listed for Matomo.

Are GrowthBook and Matomo open source?

Yes. 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). Matomo is open source (Matomo core is GPL-3.0-or-later and the MCP server plugin is GPL v3 or later. Matomo Cloud is a hosted service under InnoCraft's terms. Paid On-Premise plugins fall under the InnoCraft EULA).

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