Skip to content
ProductArena

Rank #2 of 5 in Feature Flags & Experimentation

GrowthBook logo

GrowthBook

Open SourceYC W22

GrowthBook (YC W22)

growthbook.io ↗Try it →
PA Score41/100AGENT-READY62/100BUILT-IN AI28/100API11/100
MCP✓CLI—API✓
★ 8.4k▲ 1.6k/yrnpm 701.9k/wk★ +65npm/wk -349.1k
ArenasFeature Flags & Experimentation#2/5

Access

Open app ↗API docs ↗MCP docs ↗

Install

dockerdocker compose up -d
npmnpm install @growthbook/growthbook
mcpnpx -y @growthbook/mcp

Compare head-to-head

LaunchDarkly logovs LaunchDarklyStatsig logovs StatsigFlagsmith logovs FlagsmithUnleash logovs Unleash

Alternatives to GrowthBook →

Showcase

GrowthBook homepage screenshot
homepage · captured Sep 2026 · view live ↗
GrowthBook docs screenshot
docs · captured Sep 2026 · view live ↗

Try itExperimental

See what an agent can do with GrowthBook before you ever sign up. Pick a story: recorded sessions replay real probe-harness transcripts; sandboxed self-drive sessions are designed and gated (docs/TRY-IT.md).

$docker run -d mongo:6 && docker run -d -p 13100:3100 growthbook/growthbook && POST /auth/register && POST /organization && POST /feature {id: pa-probe-flag} && POST /sdk-connections && curl /api/features/<sdk-key>recorded session — replayed, not live
recorded 2026-09-05 · exit 0 · captured verbatim by our probe harness, secrets redacted

Verified integrations

Connections to other tracked products — hover a chip for the verbatim evidence quote behind it.

BigQuery logoBigQueryData Warehouses & LakehousesClaude logoClaudeAI AssistantsCloudflare Workers logoCloudflare WorkersEdge & App PlatformsCursor logoCursorAI Coding AgentsReact logoReactFrontend FrameworksSnowflake logoSnowflakeData Warehouses & LakehousesVue.js logoVue.jsFrontend Frameworks

By theme — the product's score on each story themeBy theme

Agenticness — how well agents can access and operate the productAgenticnessevidence →

How well agents can access and operate the product

42.8/100

Automation depth — how much of the product can run unattendedAutomation depthevidence →

How much of the product can run unattended

23.3/100

Deployment self host — stories about deployment self host in this arenaDeployment self hostevidence →

Stories about deployment self host in this arena

90.0/100

Experimentation — stories about experimentation in this arenaExperimentationevidence →

Stories about experimentation in this arena

82.5/100

Flag management — stories about flag management in this arenaFlag managementevidence →

Stories about flag management in this arena

69.8/100

Governance audit — stories about governance audit in this arenaGovernance auditevidence →

Stories about governance audit in this arena

45.3/100

Openness — open source, data portability, and self-hosting storiesOpennessevidence →

Open source, data portability, and self-hosting stories

59.0/100

Pricing plans — plan structure and value — what each tier costs and what it unlocksPricing plansevidence →

Plan structure and value — what each tier costs and what it unlocks

36.0/100

Privacy posture — data-handling and privacy storiesPrivacy postureevidence →

Data-handling and privacy stories

13.3/100

Rollouts releases — stories about rollouts releases in this arenaRollouts releasesevidence →

Stories about rollouts releases in this arena

54.0/100

Sdk delivery — stories about sdk delivery in this arenaSdk deliveryevidence →

Stories about sdk delivery in this arena

61.8/100

Story verdicts — every judged story with its evidenceStory verdicts

What’s free: 11 free · 10 paid · 0 enterprise · 22 not stated in evidence

?

Sorted by importance (agentic first) (high → low) · 54/54 stories · click a row’s chevron for the rationale and evidence

Connect an agent via an official MCP server G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness3full9/10T

Drive the product through a documented public API G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness3fullfree9/10T

Delegate tasks to a built-in AI assistant inside the product G

Agentic features

ai-native userAgenticness — how well agents can access and operate the productAgenticness3none0/10

Plug MCP servers into this product so it can use their tools G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness3n/a0/10

Build against official SDKs G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness2full9/10X

Point an agent at llms.txt or agent-oriented docs G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness2full9/10T

Operate the product with natural-language commands G

Agentic features

ai-native userAgenticness — how well agents can access and operate the productAgenticness2full8/10T

Run the product headlessly / in CI for automation G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness2fullfree8/10T

Issue scoped/least-privilege API credentials for an agent G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness2partial5/10T

Get AI-generated insights and suggestions from my data inside the product G

Agentic features

ai-native userAgenticness — how well agents can access and operate the productAgenticness2partial4/10T

Set up automations that run autonomously in the background G

Agentic features

ai-native userAgenticness — how well agents can access and operate the productAgenticness2partialpaid4/10T

Download a machine-readable API spec (OpenAPI or equivalent) G

Api quality

ai-native userAgenticness — how well agents can access and operate the productAgenticness2none0/10

Explore an interactive API reference with runnable examples G

Api quality

ai-native userAgenticness — how well agents can access and operate the productAgenticness2none0/10

Rely on versioned APIs with a documented deprecation policy G

Api quality

ai-native userAgenticness — how well agents can access and operate the productAgenticness2none0/10

Subscribe to events via webhooks G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness2noneuntestednone yet

Use an official CLI G

Agent access

ai-native userAgenticness — how well agents can access and operate the productAgenticness2noneuntestednone yet

Test against a sandbox environment without touching production data G

Api quality

ai-native userAgenticness — how well agents can access and operate the productAgenticness1fullfree8/10T

Self-host the core product G

ai-native userOpenness — open source, data portability, and self-hosting storiesOpenness3fullfree10/10T

Create a feature flag and toggle it live in production within minutes of signing up C

Flags

developerFlag management — stories about flag management in this arenaFlag management3fullfree9/10T

My server SDKs evaluate flags locally from a cached ruleset — microsecond decisions with no network call per flag check C

Evaluation

platform engineerSdk delivery — stories about sdk delivery in this arenaSdk delivery3full9/10T

Self-host the full flag platform from an open-source distribution, keeping evaluation data on my infrastructure C

Self host

platform engineerDeployment self host — stories about deployment self host in this arenaDeployment self host3fullfree9/10T

Require approvals or change requests before production flag changes go live C

Approvals

platform engineerGovernance audit — stories about governance audit in this arenaGovernance audit3fullpaid8/10C

Roll a flag out progressively by percentage with consistent bucketing, ramping from 1% to 100% without redeploying C

Rollouts

developerRollouts releases — stories about rollouts releases in this arenaRollouts releases3fullpaid8/10T

Run A/B and multivariate experiments on flags and see which variation wins on my metrics C

Experiments

product managerExperimentation — stories about experimentation in this arenaExperimentation3fullfree8/10X

Create and toggle flags through documented APIs, CLIs, or MCP — and the platform can force my changes through approval workflows instead of letting me write to production unreviewed C

Agent ops

ai agentGovernance audit — stories about governance audit in this arenaGovernance audit3partialpaid6/10T

Target flags with attribute-based rules and reusable segments so the right users see the right variation C

Targeting

developerFlag management — stories about flag management in this arenaFlag management3partial6/10C

Define rules that trigger actions automatically on events G

ai-native userAutomation depth — how much of the product can run unattendedAutomation depth3partial5/10C

Every flag change is recorded in an audit log — who changed what, when, and to which value G

Audit

platform engineerGovernance audit — stories about governance audit in this arenaGovernance audit3partialpaid5/10C

Export all of my data in open formats and leave G

ai-native userOpenness — open source, data portability, and self-hosting storiesOpenness3partialfree5/10X

Prevent my data from being used to train AI models G

ai-native userPrivacy posture — data-handling and privacy storiesPrivacy posture3noneuntestednone yet

Trust a documented statistics engine (Bayesian or frequentist, with variance-reduction options) behind experiment results C

Analysis

product managerExperimentation — stories about experimentation in this arenaExperimentation2full9/10X

Define experiment metrics from my own data — warehouse tables or ingested events — instead of a black-box metric store C

Metrics

product managerExperimentation — stories about experimentation in this arenaExperimentation2full8/10X

Evaluate flags at the edge (CDN workers or an edge/relay layer) close to users C

Edge

platform engineerSdk delivery — stories about sdk delivery in this arenaSdk delivery2full8/10C

Find stale flags and code references so temporary flags actually get removed from the codebase C

Lifecycle

platform engineerFlag management — stories about flag management in this arenaFlag management2full8/10C

Manage separate environments (dev/staging/prod) with independent flag states and scoped SDK keys C

Environments

developerFlag management — stories about flag management in this arenaFlag management2fullpaid8/10T

Do everything through the API that I can do in the UI G

ai-native userOpenness — open source, data portability, and self-hosting storiesOpenness2full7/10T

Serve multivariate flags and dynamic configuration values (strings, numbers, JSON), not just booleans C

Flags

developerFlag management — stories about flag management in this arenaFlag management2full7/10T

Use official SDKs across my whole stack — backend, web, and mobile — with consistent flag behavior C

Sdks

developerSdk delivery — stories about sdk delivery in this arenaSdk delivery2full7/10X

Choose where my data is stored (region/residency) G

ai-native userPrivacy posture — data-handling and privacy storiesPrivacy posture2partialfree6/10T

See published pricing and understand what drives cost (seats, MAUs, events, requests) before committing G

Pricing

product managerPricing plans — plan structure and value — what each tier costs and what it unlocksPricing plans2partial6/10C

Perform bulk operations across many items at once G

ai-native userAutomation depth — how much of the product can run unattendedAutomation depth2partial5/10T

Read the product's source under an open license G

ai-native userOpenness — open source, data portability, and self-hosting storiesOpenness2partialfree5/10X

Restrict who can change which flags with roles, permissions, and scoped API tokens C

Access

platform engineerGovernance audit — stories about governance audit in this arenaGovernance audit2partialpaid5/10C

Control data retention and deletion G

ai-native userPrivacy posture — data-handling and privacy storiesPrivacy posture2partialfree4/10C

Flag changes propagate to connected SDKs in seconds via streaming or fast polling — a kill switch actually kills C

Streaming

developerSdk delivery — stories about sdk delivery in this arenaSdk delivery2partial4/10X

Guard a rollout with metrics so a regression is detected and the release is rolled back automatically C

Rollouts

platform engineerRollouts releases — stories about rollouts releases in this arenaRollouts releases2partialpaid4/10C

Schedule recurring jobs or workflows G

ai-native userAutomation depth — how much of the product can run unattendedAutomation depth2none0/10

Opt out of telemetry and usage tracking G

ai-native userPrivacy posture — data-handling and privacy storiesPrivacy posture2noneuntestednone yet

Run a relay/edge proxy so flags stay served when the vendor is unreachable and SDK traffic stays inside my network C

Proxy

platform engineerDeployment self host — stories about deployment self host in this arenaDeployment self host1full9/10X

Read experiment configurations and results programmatically to summarize outcomes and recommend ship/rollback decisions C

Agent ops

ai agentExperimentation — stories about experimentation in this arenaExperimentation1full8/10T

Target or exclude specific individual users for a flag (allowlists, beta testers, internal accounts) C

Targeting

developerFlag management — stories about flag management in this arenaFlag management1full7/10C

Schedule flag changes and releases to happen at a specific future time C

Scheduling

developerRollouts releases — stories about rollouts releases in this arenaRollouts releases1partialpaid6/10C

Version, review, and roll back my automations G

ai-native userAutomation depth — how much of the product can run unattendedAutomation depth1partialpaid6/10X

Use the vendor through OpenFeature providers so my flag code isn't locked to one vendor's SDK API C

Standards

platform engineerSdk delivery — stories about sdk delivery in this arenaSdk delivery1none0/10

Opportunities — the stories that would move this product's scores, from its own judged verdictsOpportunitiestop 8 of 28 stories with headroom

What would move GrowthBook’s scores — derived from its own judged verdicts, biggest headroom first. Each line quotes what the judge found missing; shipping it (or evidencing it publicly) is the fix.

  1. Agenticness — how well agents can access and operate the productDelegate tasks to a built-in AI assistant inside the product

    nonemoves Built-in AIimpact 45

    GrowthBook documents an MCP server that lets external AI tools (Cursor, VS Code, Claude) connect to and query GrowthBook — this is the opposite direction (GrowthBook as a data/tool source for external assistants), not a built-in AI assistant living inside the GrowthBook product itself.

  2. Privacy posture — data-handling and privacy storiesPrevent my data from being used to train AI models

    nonemoves PA Scoreimpact 30

    No evidence addresses whether GrowthBook uses customer data to train AI models or offers an opt-out; while self-hosting (growthbook-docs-10) keeps data on-prem, there is no explicit privacy statement about AI training data usage.

  3. Agenticness — how well agents can access and operate the productUse an official CLI

    nonemoves agent-readyimpact 30

    The evidence pack documents SDKs, REST API, self-host Docker, and an official MCP server, but there is no mention anywhere of an official standalone CLI tool for GrowthBook.

  4. Agenticness — how well agents can access and operate the productSubscribe to events via webhooks

    nonemoves agent-readyimpact 30

    The evidence pack covers SDKs, REST API, MCP integration, self-hosting, and experimentation features but contains no mention of webhooks or event subscription mechanisms anywhere, so there is no evidence GrowthBook supports this capability.

  5. Agenticness — how well agents can access and operate the productExplore an interactive API reference with runnable examples

    nonemoves API qualityimpact 30

    GrowthBook documents a REST API (growthbook-docs-12) but there is no evidence of an interactive, runnable API reference (e.g., Swagger/OpenAPI try-it console) — a direct probe for openapi/swagger specs returned 404 on all candidate paths, and no docs mention runnable code samples in an API explorer.

  6. Agenticness — how well agents can access and operate the productDownload a machine-readable API spec (OpenAPI or equivalent)

    nonemoves API qualityimpact 30

    While GrowthBook documents a full REST API (growthbook-docs-12) and an SDK Connection Endpoint (growthbook-docs-20), the evidence pack shows an explicit probe for OpenAPI/Swagger spec files at expected paths that all returned 404, and no other evidence surfaces a downloadable OpenAPI or machine-readable spec.

  7. Agenticness — how well agents can access and operate the productRely on versioned APIs with a documented deprecation policy

    nonemoves API qualityimpact 30

    Missing: any mention of API version numbers, backward-compatibility guarantees, or a deprecation/sunset policy.

  8. Automation depth — how much of the product can run unattendedSchedule recurring jobs or workflows

    nonemoves PA Scoreimpact 20

    Evidence only shows one-time scheduling of feature-flag rule start/stop dates and 'ramp schedules' for gradual rollouts (growthbook-docs-22, growthbook-docs-37) — nothing resembling recurring cron-like jobs or workflow automation that an AI-native user could schedule to run repeatedly.

Showing the top 8 of 28 — every none/partial verdict in the story verdicts table is headroom.

Think a verdict is wrong? Every verdicts-table row has a Flag link — see the methodology.

Coverage map — which docs area, API section, or community source covers which judged storiesCoverage map11 surfaces · 43 covered stories

Where the cited evidence behind each covered verdict came from — the same citations the verdicts table shows, no extra judging.

App docs20 stories

Self host docs19 stories

Features docs19 stories

Hacker News14 stories

Pricing docs13 stories

Integrations docs10 stories

GitHub README7 stories

Lib docs5 stories

Experiments docs4 stories

llms.txt1 story

OpenAPI spec1 story

Probe proofs — replayable recordings from the probe harnessProbe proofs

Replayable recordings from our probe harness — see the Prove-It protocol to submit one.

$docker run -d mongo:6 && docker run -d -p 13100:3100 growthbook/growthbook && POST /auth/register && POST /organization && POST /feature {id: pa-probe-flag} && POST /sdk-connections && curl /api/features/<sdk-key>reproduced
$ docker run -d mongo:6 && docker run -d -p 13100:3100 growthbook/growthbook && POST /auth/register && POST /organization && POST /feature {id: pa-probe-flag} && POST /sdk-connections && curl /api/features/<sdk-[redacted]>
{
  "status": 200,
  "healthy": true
}
org: org_3owr3imtnx0gvv
{
  "status": 200,
  "feature": {
    "defaultValue": "true",
    "valueType": "boolean",
    "owner": "u_3owr3imtnx0guc
sdk [redacted]: sdk-9bYqWRtJ6RqRGNxz
{
  "status": 200,
  "features": {
    "pa-probe-flag": {
      "defaultValue": true
    }
  },
  "dateUpdated": "2026-09-05T05:01:09.550Z"
}
proves: Self-host the full flag platform from an open-source distribution, keeping evaluation data on my infrastructureproves: Self-host the core productproves: Create and toggle flags through documented APIs, CLIs, or MCP — and the platform can force my changes through approval workflows instead of letting me write to production unreviewedrecorded 2026-09-05
$echo '<jsonrpc initialize>' | npx -y @growthbook/mcpreproduced
$ echo '<jsonrpc initialize>' | npx -y @growthbook/mcp
\|/-{"result":{"protocolVersion":"2025-06-18","capabilities":{"tools":{"listChanged":true}},"serverInfo":{"name":"GrowthBook MCP Thin","version":"2.1.0","title":"GrowthBook MCP Thin","websiteUrl":"https://growthbook.io"},"instructions":"You are a helpful assistant that interacts with GrowthBook via a thin MCP server.\n\nTools:\n- growthbook_list_skills — discover available GrowthBook skills (name + description)\n- growthbook_read_skill — load a skill's full workflow and guardrails\n- growthbook_api_read — authenticated GET against the GrowthBook REST API\n- growthbook_api_write — authenticated POST/PUT/PATCH/DELETE against the GrowthBook REST API\n\nWorkflow:\n1. growthbook_list_skills (or growthbook_read_skill if you already know the skill name) to load competence.\n2. Follow the skill's steps. Skills show bash like `gb-call <METHOD> <PATH> [body]` —\n   map GET to growthbook_api_read and POST/PUT/PATCH/DELETE to growthbook_api_write with the same path and optional JSON body string.\n3. Do not invent endpoints; prefer the paths listed in the skill.\n\nSkill content is the source of truth for GrowthBook task workflows and API footguns.\ngrowthbook_api_read / growthbook_api_write are dumb authenticated passthroughs — they do not validate payloads."},"jsonrpc":"2.0","id":1}
\
proves: Connect an agent via an official MCP serverproves: Create and toggle flags through documented APIs, CLIs, or MCP — and the platform can force my changes through approval workflows instead of letting me write to production unreviewedrecorded 2026-09-05

Claims vs evidence — vendor claims reconciled against independent verdictsClaims vs evidence

14 of 20 testable claims verified · 0 contradicted → integrity 70/100

31 distinct capability claims found in GrowthBook’s own claimed-docs/GitHub materials, reconciled against our judge’s independent verdicts.

14

Verified

6

Unverified

0

Contradicted

23

Undersold

Verified (21)
Unverified (9)
Undersold (23)
Claims outside our story set (2)

Real capability claims found in GrowthBook’s own materials, but no story in this arena’s taxonomy covers them yet — that’s feedback on the taxonomy, not a mark against the product.

  • “Includes a built-in product analytics suite to build and share dashboards”

    source ↗

  • “Actual targeting attribute values (user IDs, emails) are never sent to GrowthBook, only kept in memory locally in the SDK”

    source ↗
Suggest a story for these →

Business model

open-sourcefree-tiersubscription-per-seatenterprise-custom

MIT-licensed core you can self-host free with unlimited traffic; GrowthBook Cloud has a free starter tier, per-seat Pro pricing, and custom enterprise plans.

pricing ↗

Score trend

How this product’s scores have moved as evidence and verdicts are re-derived — a point per change, not per day.

PA Scoretracked since Sep 5 '26 — no movement recorded yet
Agent-readytracked since Sep 5 '26 — no movement recorded yet

Try Experimental

Run it in the microterminal →

Recorded agent sessions — and a live MCP handshake where the vendor ships one.

Flag

⚑ Flag a verdict

Think a verdict is wrong? Opens a prefilled GitHub issue — or use the ⚑ next to any verdict above.

Badge

Embed this product's score badge →

Hotlinked SVG — always shows the live current score.

For agents

This page as markdown/llms.txt

Data

Evidence (JSON)Verdicts (JSON)

Agent surface uptime llms.txt 100% (30d, checked every 6h since Sep 8 '26)