emerging · 0.0 capability resource

Experimentation

Score 21.5 / 100 30 providers +5 via APIs 18 APIs Search apis.io →

Providers using this tag (30)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 4 Complete, well-documented, and agent-ready
OptimizelyA/B TestingContent ManagementCustomer DataE-Commerce37 APIs78.0FlagsmithFeature FlagsRemote ConfigRelease ManagementA/B Testing2 APIs77.9LaunchDarklyFeature FlagsFeature ManagementObservability3 APIs77.9StatsigFeature FlagsA/B TestingProduct Analytics4 APIs76.9
Strong 3 Solid coverage with minor gaps
IntelligemsCompanyA/B TestingE-CommercePricing1 API59.3DevCycleCompanyEnterprise SaasFeature FlagsFeature Management2 APIs58.5AmplitudeA/B TestingAnalyticsFeature Flags10 APIs56.4
Developing 7 Usable, with meaningful gaps to close
BucketCompanyFeature FlagsFeature ManagementFeature Flagging1 API52.5FeatureflipFeature FlagsFeature Managementfeature flag cleanupProgressive Delivery4 APIs52.3AB TastyAggregationFeature FlagsPersonalization1 API50.3EpiserverCompanyEnterpriseContent ManagementDigital Experience Platform3 APIs47.8Parea AILLMEvaluationObservabilityTesting1 API45.6NinetailedPersonalizationA/B TestingAudience Segmentation1 API44.6FermatCompanyCommerceE-CommercePersonalization2 APIs40.7
Thin 12 Limited public surface area
SplitFeature FlagsFeature ManagementRollouts2 APIs39.0FreeplayArtificial IntelligenceLLMEvaluationObservability1 API38.4HypertuneFeature FlagsA/B TestingAnalytics1 API38.3FibrCompanyConversion Rate OptimizationPersonalizationLanding Pages34.5GrowthBookFeature FlagsOpen-SourceA/B Testing1 API33.9ApptimizeCompanyA/B TestingFeature FlagsFeature Management1 API32.3ReforgeCompanyFeature FlagsFeature ManagementDynamic Configuration1 API29.0ConvertA/B TestingConversion OptimizationPersonalization1 API28.5EppoFeature FlagsA/B TestingAnalytics1 API26.9EvolvOptimizationPersonalizationA/B Testing1 API26.7KameleoonA/B TestingPersonalizationFeature Flags1 API26.5VWOA/B TestingPersonalizationConversion Optimization1 API26.5
Emerging 3 Early or largely undocumented
Google OptimizeA/B TestingAnalyticsDeprecated1 API19.9GrowthHackersCommunityGrowth HackingMarketingGrowth Marketing13.3PolymorphCompanyPersonalizationConsumer Internet11.5
Unrated 1 Not yet scored
SigOptCompanyMachine-LearningOptimizationHyperparameter Tuning

APIs with this tag (18)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 5 Complete, well-documented, and agent-ready
Harness Feature Management and Experimentation APIAPIs to create and manage feature flags, targets, target groups, and tags for feature release management, p...86.2Optimizely Remote MCP Server — ExperimentationOptimizely's hosted remote Model Context Protocol server for Web and Feature Experimentation, on the Opal M...78.0statsig Console APIThe Statsig Console API is the provider's own published contract — the CRUD API for everything available in...76.9Algolia Ab Testing APIThe Ab Testing API from Algolia — 6 operation(s) for ab testing.71.5CloudBees Feature Management REST APIThe CloudBees Feature Management REST API (formerly Rollout) provides programmatic access to applications, ...68.3
Developing 5 Usable, with meaningful gaps to close
MCP Server (local)Documentation for the @featureflip/mcp server, a local stdio process run via npx that calls the Management ...52.3PostHog Experiments APIThe PostHog Experiments API provides programmatic management of A/B tests and experiments. It supports crea...51.1PostHog Feature Flags APIThe PostHog Feature Flags API enables developers to create, manage, and evaluate feature flags programmatic...51.1AB Tasty Remote Control APIAB Tastys Remote Control API is a developer and QA tool that lets you programmatically drive the AB Tasty S...50.3Altimate AI EXPERIMENTATION APIThe EXPERIMENTATION API from Altimate AI — 5 operation(s) for experimentation.48.8
Thin 7 Limited public surface area
Split Admin APIThe Split Admin API is a REST API that enables programmatic management of workspaces (projects), environmen...39.0Convert Experiences REST API v2Convert Experiences REST API v2 manages accounts, projects, experiments, goals, audiences, locations, repor...28.5Eppo Cloud REST APIEppo Cloud REST API provides programmatic access to feature flags, experiments, allocations, metrics, and a...26.9Evolv Participant APIThe Evolv Participant API is the runtime edge API the client SDKs call to fetch a participant's experiment ...26.7Kameleoon Automation APIKameleoon Automation API (REST) for programmatically managing experiments, feature flags, and configuration...26.5Kameleoon Data APIKameleoon Data API (REST) for high-volume server-to-server data exchange — visitor data, custom data, and o...26.5VWO Data APIVWO Data API exposes account data, campaign and goal configuration, reporting, and segmentation across the ...26.5
Emerging 1 Early or largely undocumented
Google Optimize API (Sunset)API for managing Google Optimize experiments, variants, and accessing optimization data. Sunset on Septembe...19.9

Companies reaching this through an API (5)

These companies publish an API, specification or operation carrying “Experimentation” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

Algolia Altimate AI CloudBees Harness PostHog

Score breakdown

Frequency
45.9
log-scaled weighted occurrences
Breadth
0.8
spread across providers
Quality lift
48.9
mean composite of providers using it
Cohesion
0.0
strength of nearest seed neighbor

Related tags

A/B Testing 20 co-occurrences Feature Flags 21 co-occurrences Feature Management 9 co-occurrences Experiments 10 co-occurrences Personalization 13 co-occurrences Segments 5 co-occurrences Environment 10 co-occurrences

Where this tag comes from

Provider tag30
Api tag18
Openapi tag1
Openapi op tag7

Cohort brief

Auto-generated

The 29 providers in the APIs.io catalog tagged Experimentation, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
29
all scored
Mean Kin Score
42.9
+18.9 vs catalog 24
Mean Agent Readiness
30.6
+18.2 vs catalog 12.4
Spread
11.5–78
median 39 · σ 18.5
How the 29 split by band
Exemplar 4Strong 3Developing 7Thin 12Emerging 3Minimal 0
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 47.4 20.1 +27.3 29
Developer Ergonomics 44.4 23.4 +21 29
Access Clarity 44.3 26.5 +17.8 29
Operational Transparency 31.1 14 +17.1 29
Discoverability 70.2 61 +9.2 29
Contract Governance 15.4 6.5 +8.9 29

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes
ArtifactThis cohortCatalogDifference
MCP server (any) 37% 10% +27
MCP server (first-party) 53% 13% +40
Agent Skills 0% 0% 0
OAuth scopes 20% 11% +9
Security 97% 96% +1
Arazzo workflows 7% 2% +5
Governance rules 37% 13% +24

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score
  1. 1 Optimizely 78
  2. 2 Flagsmith 77.9
  3. 3 LaunchDarkly 77.9
  4. 4 Statsig 76.9
  5. 5 Intelligems 59.3
  6. 6 DevCycle 58.5
  7. 7 Amplitude 56.4
  8. 8 Bucket 52.5
  9. 9 Featureflip 52.3
  10. 10 AB Tasty 50.3
Top by Agent Readiness
  1. 1 Optimizely 62.5
  2. 2 DevCycle 56.8
  3. 3 Intelligems 55.2
  4. 4 Amplitude 54.3
  5. 5 LaunchDarkly 54.1
  6. 6 Statsig 52.4
  7. 7 GrowthBook 48.8
  8. 8 Bucket 48.7
  9. 9 Fermat 47.7
  10. 10 Flagsmith 47.2
All 30 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 20 September 2026, across 27620 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for tags

7 MCP tools reach this
  • find_tagsBrowse and filter every tag in the catalog.
  • get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
  • cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
  • cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This tag 
curl "https://apis.io/api/v1/tags/experimentation"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/experimentation"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/experimentation/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.