Eppo

Eppo is a next-generation feature flagging and experimentation platform built for warehouse-native analytics and rigorous experimentation.

Eppo publishes 6 API contracts indexed on the APIs.io network, including Allocations API, Assignments API, Experiments API, and 3 more. Tagged areas include Experimentation, Feature Flags, A/B Testing, Analytics, and Statistics.

The Eppo catalog on APIs.io includes 1 Spectral governance ruleset.

Eppo’s developer surface includes authentication, documentation, engineering blog, and 10 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

27.2/100 thin ▬ flat Agent 19/100 agent aware Front door AI 4/6 moderate Heartbeat 50/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessEnterprise

1 published contract

Experimentation Feature Flags A/B Testing Analytics Statistics

What this lets a business do 2

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Product Telemetry & Experimentation Management

BC-4280

AssignmentsExperiments

POST /experiments POST /assignments

Software Release & Deployment Management

BC-4210

Allocations

GET /flags/{flagKey}/allocations

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 27.2/100 · thin

Contract Quality 9.0 / 19

Developer Ergonomics 3.6 / 15

Access Clarity 0.8 / 15

Operational Transparency 1.8 / 10

Contract Governance 1.2 / 9

Discoverability 4.3 / 8

Regulatory Posture 2.6 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 19/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/eppo/"><img src="https://apis.io/badge/eppo/card.svg" alt="Eppo on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

10 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 5.3 — up to +18.9 composite points
Developer Ergonomics scores 23.8 — up to +15.2 composite points
Contract Quality scores 47.9 — up to +13.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/eppo/apis.yml: open an issue on github.com/api-evangelist/eppo to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 6

Individual APIs this provider publishes, each with its own machine-readable definition.

Eppo Cloud REST API

Eppo Cloud REST API provides programmatic access to feature flags, experiments, allocations, metrics, and assignments configuration.

Eppo Allocations API

The Allocations API from Eppo — 1 operation(s) for allocations.

Eppo Assignments API

The Assignments API from Eppo — 1 operation(s) for assignments.

Eppo Experiments API

The Experiments API from Eppo — 2 operation(s) for experiments.

Eppo Flags API

The Flags API from Eppo — 2 operation(s) for flags.

Eppo Metrics API

The Metrics API from Eppo — 1 operation(s) for metrics.

Open Collections 6

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Eppo Cloud REST Allocations API

OPEN COLLECTION

Eppo Cloud REST Allocations Assignments API

OPEN COLLECTION

Eppo Cloud REST Allocations Experiments API

OPEN COLLECTION

Eppo Cloud REST Allocations Flags API

OPEN COLLECTION

Eppo Cloud REST Allocations Metrics API

OPEN COLLECTION

Eppo Cloud REST API

OPEN COLLECTION

Eppo API pricing

Not yet checked against Eppo's own pricing page. Compiled by API Evangelist on 2026-05-08 from www.geteppo.com/; confirm before you rely on a figure.

Plan	Price
To Be Reconciled enterprise	—

Plan details, limits and sources →

Rate limits

Default: see provider documentation varies

Compiled by API Evangelist, not yet checked against Eppo's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Eppo Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Eppo Rate Limits

1 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Eppo

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Eppo Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Eppo API Rules

56 rules · 54 errors 1 warnings 1 info

SPECTRAL

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Eppo Authentication

apiKey · 1 scheme

SECURITY

Eppo Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Eppo Vulnerability Disclosure

no policy recorded

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Eppo Agentic Access

13 operations · 7 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: eppo
url: https://raw.githubusercontent.com/api-evangelist/eppo/refs/heads/main/apis.yml
name: Eppo
kind: company
description: Eppo is a next-generation feature flagging and experimentation platform built for warehouse-native analytics
  and rigorous experimentation.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: enterprise
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Enterprise
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/eppo.png
tags:
- Experimentation
- Feature Flags
- A/B Testing
- Analytics
- Statistics
tags_raw:
- Experimentation
- Feature Flags
- AB Testing
- Analytics
- Statistics
created: '2026-05-08'
modified: '2026-05-08'
specificationVersion: '0.23'
apis:
- aid: eppo:eppo-cloud-api
  name: Eppo Cloud REST API
  description: Eppo Cloud REST API provides programmatic access to feature flags, experiments, allocations, metrics, and assignments
    configuration.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://eppo.cloud/api/docs
  baseURL: https://eppo.cloud/api
  tags:
  - Feature Flags
  - Experimentation
  - REST
  properties:
  - type: Documentation
    url: https://eppo.cloud/api/docs
  - type: Developers
    url: https://docs.geteppo.com/
- aid: eppo:eppo-allocations-api
  name: Eppo Allocations API
  description: The Allocations API from Eppo — 1 operation(s) for allocations.
  humanURL: https://eppo.cloud/api/docs
  baseURL: https://eppo.cloud/api
  tags:
  - Allocations
  properties:
  - type: OpenAPI
    url: openapi/eppo-allocations-api-openapi.yml
- aid: eppo:eppo-assignments-api
  name: Eppo Assignments API
  description: The Assignments API from Eppo — 1 operation(s) for assignments.
  humanURL: https://eppo.cloud/api/docs
  baseURL: https://eppo.cloud/api
  tags:
  - Assignments
  properties:
  - type: OpenAPI
    url: openapi/eppo-assignments-api-openapi.yml
- aid: eppo:eppo-experiments-api
  name: Eppo Experiments API
  description: The Experiments API from Eppo — 2 operation(s) for experiments.
  humanURL: https://eppo.cloud/api/docs
  baseURL: https://eppo.cloud/api
  tags:
  - Experiments
  properties:
  - type: OpenAPI
    url: openapi/eppo-experiments-api-openapi.yml
- aid: eppo:eppo-flags-api
  name: Eppo Flags API
  description: The Flags API from Eppo — 2 operation(s) for flags.
  humanURL: https://eppo.cloud/api/docs
  baseURL: https://eppo.cloud/api
  tags:
  - Flags
  properties:
  - type: OpenAPI
    url: openapi/eppo-flags-api-openapi.yml
- aid: eppo:eppo-metrics-api
  name: Eppo Metrics API
  description: The Metrics API from Eppo — 1 operation(s) for metrics.
  humanURL: https://eppo.cloud/api/docs
  baseURL: https://eppo.cloud/api
  tags:
  - Metrics
  properties:
  - type: OpenAPI
    url: openapi/eppo-metrics-api-openapi.yml
common:
- type: CapabilityMap
  url: capabilities/eppo-capability-edges.yml
  name: Eppo Business Capability Map
- type: AgenticAccess
  url: agentic-access/eppo-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/eppo-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/eppo-domain-security.yml
- type: Authentication
  url: authentication/eppo-authentication.yml
- type: GitHubOrganization
  url: https://github.com/eppo-exp
- type: LinkedIn
  url: https://www.linkedin.com/company/geteppo
- type: Website
  url: https://www.geteppo.com/
- type: Documentation
  url: https://eppo.cloud/api/docs
- type: Plans
  url: plans/eppo-plans-pricing.yml
- type: RateLimits
  url: rate-limits/eppo-rate-limits.yml
- type: FinOps
  url: finops/eppo-finops.yml
- url: https://www.geteppo.com/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Eppo API — frequently asked questions

Does Eppo have an API?

Yes. APIs.io lists 6 APIs from Eppo, including Eppo Cloud REST API, Eppo Allocations API and Eppo Assignments API, and 3 more.

Is there an OpenAPI specification for the Eppo API?

Yes. APIs.io indexes 5 OpenAPI specifications for Eppo, each linked for download from this page.

How do I authenticate with the Eppo API?

Eppo uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Eppo Authentication.

How much does the Eppo API cost?

APIs.io lists 1 pricing plan for Eppo, with each plan's price, limits and inclusions under Pricing on this page.

Is the Eppo API ready for AI agents?

Eppo has a Kin Score of 27.2 out of 100 (thin) and an Agent Readiness score of 19.0 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider 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 providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
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 provider

curl "https://apis.io/api/v1/providers/eppo"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/eppo/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/eppo/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

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.