OpenMeter

OpenMeter is open-source usage metering and billing for AI and API products. It ingests usage events as CloudEvents, aggregates them through meters, answers usage queries, and turns that usage into entitlements, balances, grants, usage-driven notifications, and Stripe-backed billing. Available as an open-source project and as OpenMeter Cloud with a Bearer-token REST API at https://openmeter.cloud/api/v1.

OpenMeter publishes 10 API contracts indexed on the APIs.io network, including Billing API, Customers API, Entitlements API, and 7 more. Tagged areas include Usage Metering, Billing, Entitlements, CloudEvents, and Open Source.

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

OpenMeter’s developer surface includes engineering blog, authentication, documentation, and 12 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

31.7/100 thin ▬ flat Agent 21/100 agent aware Front door AI 4/6 moderate saas Full breakdown ↓
scored 2026-10-23 · rubric v0.25.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

Usage Metering Billing Entitlements CloudEvents Open Source Artificial Intelligence Usage-Based Billing

What this lets a business do 2

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

Subscription Billing & Revenue Management

BC-4250

BillingEventsMeters

GET /api/v1/meters GET /api/v1/meters/{meterIdOrSlug} GET /api/v1/meters/{meterIdOrSlug}/query POST /api/v1/events

Subscription Lifecycle Management

BC-4240

EntitlementsPlans

GET /api/v1/subjects/{subjectIdOrKey}/entitlements POST /api/v1/subjects/{subjectIdOrKey}/entitlements GET /api/v1/subjects/{subjectIdOrKey}/entitlements/{entitlementIdOrFeatureKey}/value POST /api/v1/plans

Kin Score

Kin Score How this is scored →
scored 2026-10-23 · rubric v0.25.0

Composite quality — 31.7/100 · thin

Contract Quality 8.1 / 19

Developer Ergonomics 4.8 / 15

Access Clarity 2.4 / 15

Operational Transparency 1.0 / 10

Contract Governance 1.4 / 9

Discoverability 5.0 / 8

Regulatory Posture 2.3 / 15

Create-or-Update Ergonomics 2.2 / 10

Agent readiness — 21/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 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

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

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

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 github.com/api-evangelist/openmeter: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Billing, Subscriptions and Monetization	undeclared	-	-	1
Artifact Hub Cloud-Native Packages	undeclared	-	-	1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

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.

CloudEvents

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

APIs 10

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

OpenMeter Billing API

Billing profiles, invoices, and customer overrides.

OpenMeter Customers API

Customers used for entitlements, subscriptions, and billing.

OpenMeter Entitlements API

Metered, boolean, and static entitlements that gate access.

OpenMeter Events API

Ingest usage events as CloudEvents and list ingested events.

OpenMeter Features API

Features that entitlements are attached to.

OpenMeter Grants API

Usage grants that top up metered entitlement balances.

OpenMeter Meters API

Define meters that aggregate events and query usage.

OpenMeter Notifications API

Notification channels, rules, and events for usage-driven alerts.

OpenMeter Plans API

Product catalog plans for subscriptions.

OpenMeter Subjects API

Subjects that usage is metered against.

Scroll for all 10

Open Collections 11

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

OpenMeter Billing API

OPEN COLLECTION

OpenMeter Billing Customers API

OPEN COLLECTION

OpenMeter Billing Entitlements API

OPEN COLLECTION

OpenMeter Billing Events API

OPEN COLLECTION

OpenMeter Billing Features API

OPEN COLLECTION

OpenMeter Billing Grants API

OPEN COLLECTION

OpenMeter Billing Meters API

OPEN COLLECTION

OpenMeter Billing Notifications API

OPEN COLLECTION

OpenMeter Billing Plans API

OPEN COLLECTION

OpenMeter Billing Subjects API

OPEN COLLECTION

OpenMeter API

OPEN COLLECTION

Scroll for all 11

Pricing Plans 1

Published pricing tiers and plan structures.

Openmeter Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Openmeter Rate Limits

3 limits

RATE LIMITS

FinOps 1

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

Openmeter Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

OpenMeter — openmeter rules

0 rules ·

SPECTRAL

Security Posture 3

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

Openmeter Authentication

http · 1 scheme

SECURITY

Openmeter Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Openmeter Trust Center

SOC 2

SECURITY

Agentic Access 1

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

Openmeter Agentic Access

36 operations · 14 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

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

SpectralRules

SpectralRules

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

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 4

The organization behind the API

Blog

Blog

BlogRSS

BlogRSS

LinkedIn

Website

Website

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: openmeter
url: https://raw.githubusercontent.com/api-evangelist/openmeter/refs/heads/main/apis.yml
name: OpenMeter
kind: company
description: OpenMeter is open-source usage metering and billing for AI and API products. It ingests usage events as CloudEvents,
  aggregates them through meters, answers usage queries, and turns that usage into entitlements, balances, grants, usage-driven
  notifications, and Stripe-backed billing. Available as an open-source project and as OpenMeter Cloud with a Bearer-token
  REST API at https://openmeter.cloud/api/v1.
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: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/openmeter.png
tags:
- Usage Metering
- Billing
- Entitlements
- CloudEvents
- Open Source
- Artificial Intelligence
- Usage-Based Billing
tags_raw:
- Usage Metering
- Billing
- Entitlements
- CloudEvents
- Open Source
- AI
- Open-Source
- Usage-Based Billing
created: '2026-07-01'
modified: '2026-10-06'
specificationVersion: '0.23'
apis:
- aid: openmeter:openmeter-billing-api
  name: OpenMeter Billing API
  description: Billing profiles, invoices, and customer overrides.
  humanURL: https://openmeter.io/docs/getting-started/ingestion
  baseURL: https://openmeter.cloud/api/v1
  tags:
  - Billing
  properties:
  - type: OpenAPI
    url: openapi/openmeter-billing-api-openapi.yml
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/ingestion
  - type: APIReference
    url: https://openmeter.io/docs/api
  - type: PostmanCollection
    url: collections/openmeter.postman_collection.json
  - type: OpenCollection
    url: collections/openmeter.opencollection.json
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/meters
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/query-usage
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/subjects
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/overview
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/features
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/grants
  - type: Documentation
    url: https://openmeter.io/docs/notifications/overview
  - type: Documentation
    url: https://openmeter.io/docs/billing/overview
- aid: openmeter:openmeter-customers-api
  name: OpenMeter Customers API
  description: Customers used for entitlements, subscriptions, and billing.
  humanURL: https://openmeter.io/docs/getting-started/ingestion
  baseURL: https://openmeter.cloud/api/v1
  tags:
  - Customers
  properties:
  - type: OpenAPI
    url: openapi/openmeter-customers-api-openapi.yml
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/ingestion
  - type: APIReference
    url: https://openmeter.io/docs/api
  - type: PostmanCollection
    url: collections/openmeter.postman_collection.json
  - type: OpenCollection
    url: collections/openmeter.opencollection.json
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/meters
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/query-usage
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/subjects
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/overview
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/features
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/grants
  - type: Documentation
    url: https://openmeter.io/docs/notifications/overview
  - type: Documentation
    url: https://openmeter.io/docs/billing/overview
- aid: openmeter:openmeter-entitlements-api
  name: OpenMeter Entitlements API
  description: Metered, boolean, and static entitlements that gate access.
  humanURL: https://openmeter.io/docs/getting-started/ingestion
  baseURL: https://openmeter.cloud/api/v1
  tags:
  - Entitlements
  properties:
  - type: OpenAPI
    url: openapi/openmeter-entitlements-api-openapi.yml
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/ingestion
  - type: APIReference
    url: https://openmeter.io/docs/api
  - type: PostmanCollection
    url: collections/openmeter.postman_collection.json
  - type: OpenCollection
    url: collections/openmeter.opencollection.json
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/meters
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/query-usage
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/subjects
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/overview
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/features
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/grants
  - type: Documentation
    url: https://openmeter.io/docs/notifications/overview
  - type: Documentation
    url: https://openmeter.io/docs/billing/overview
- aid: openmeter:openmeter-events-api
  name: OpenMeter Events API
  description: Ingest usage events as CloudEvents and list ingested events.
  humanURL: https://openmeter.io/docs/getting-started/ingestion
  baseURL: https://openmeter.cloud/api/v1
  tags:
  - Event
  tags_raw:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/openmeter-events-api-openapi.yml
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/ingestion
  - type: APIReference
    url: https://openmeter.io/docs/api
  - type: PostmanCollection
    url: collections/openmeter.postman_collection.json
  - type: OpenCollection
    url: collections/openmeter.opencollection.json
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/meters
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/query-usage
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/subjects
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/overview
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/features
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/grants
  - type: Documentation
    url: https://openmeter.io/docs/notifications/overview
  - type: Documentation
    url: https://openmeter.io/docs/billing/overview
- aid: openmeter:openmeter-features-api
  name: OpenMeter Features API
  description: Features that entitlements are attached to.
  humanURL: https://openmeter.io/docs/getting-started/ingestion
  baseURL: https://openmeter.cloud/api/v1
  tags:
  - Features
  properties:
  - type: OpenAPI
    url: openapi/openmeter-features-api-openapi.yml
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/ingestion
  - type: APIReference
    url: https://openmeter.io/docs/api
  - type: PostmanCollection
    url: collections/openmeter.postman_collection.json
  - type: OpenCollection
    url: collections/openmeter.opencollection.json
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/meters
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/query-usage
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/subjects
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/overview
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/features
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/grants
  - type: Documentation
    url: https://openmeter.io/docs/notifications/overview
  - type: Documentation
    url: https://openmeter.io/docs/billing/overview
- aid: openmeter:openmeter-grants-api
  name: OpenMeter Grants API
  description: Usage grants that top up metered entitlement balances.
  humanURL: https://openmeter.io/docs/getting-started/ingestion
  baseURL: https://openmeter.cloud/api/v1
  tags:
  - Grants
  properties:
  - type: OpenAPI
    url: openapi/openmeter-grants-api-openapi.yml
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/ingestion
  - type: APIReference
    url: https://openmeter.io/docs/api
  - type: PostmanCollection
    url: collections/openmeter.postman_collection.json
  - type: OpenCollection
    url: collections/openmeter.opencollection.json
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/meters
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/query-usage
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/subjects
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/overview
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/features
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/grants
  - type: Documentation
    url: https://openmeter.io/docs/notifications/overview
  - type: Documentation
    url: https://openmeter.io/docs/billing/overview
- aid: openmeter:openmeter-meters-api
  name: OpenMeter Meters API
  description: Define meters that aggregate events and query usage.
  humanURL: https://openmeter.io/docs/getting-started/ingestion
  baseURL: https://openmeter.cloud/api/v1
  tags:
  - Meters
  properties:
  - type: OpenAPI
    url: openapi/openmeter-meters-api-openapi.yml
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/ingestion
  - type: APIReference
    url: https://openmeter.io/docs/api
  - type: PostmanCollection
    url: collections/openmeter.postman_collection.json
  - type: OpenCollection
    url: collections/openmeter.opencollection.json
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/meters
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/query-usage
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/subjects
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/overview
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/features
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/grants
  - type: Documentation
    url: https://openmeter.io/docs/notifications/overview
  - type: Documentation
    url: https://openmeter.io/docs/billing/overview
- aid: openmeter:openmeter-notifications-api
  name: OpenMeter Notifications API
  description: Notification channels, rules, and events for usage-driven alerts.
  humanURL: https://openmeter.io/docs/getting-started/ingestion
  baseURL: https://openmeter.cloud/api/v1
  tags:
  - Notification
  tags_raw:
  - Notifications
  properties:
  - type: OpenAPI
    url: openapi/openmeter-notifications-api-openapi.yml
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/ingestion
  - type: APIReference
    url: https://openmeter.io/docs/api
  - type: PostmanCollection
    url: collections/openmeter.postman_collection.json
  - type: OpenCollection
    url: collections/openmeter.opencollection.json
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/meters
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/query-usage
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/subjects
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/overview
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/features
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/grants
  - type: Documentation
    url: https://openmeter.io/docs/notifications/overview
  - type: Documentation
    url: https://openmeter.io/docs/billing/overview
- aid: openmeter:openmeter-plans-api
  name: OpenMeter Plans API
  description: Product catalog plans for subscriptions.
  humanURL: https://openmeter.io/docs/getting-started/ingestion
  baseURL: https://openmeter.cloud/api/v1
  tags:
  - Plans
  properties:
  - type: OpenAPI
    url: openapi/openmeter-plans-api-openapi.yml
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/ingestion
  - type: APIReference
    url: https://openmeter.io/docs/api
  - type: PostmanCollection
    url: collections/openmeter.postman_collection.json
  - type: OpenCollection
    url: collections/openmeter.opencollection.json
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/meters
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/query-usage
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/subjects
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/overview
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/features
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/grants
  - type: Documentation
    url: https://openmeter.io/docs/notifications/overview
  - type: Documentation
    url: https://openmeter.io/docs/billing/overview
- aid: openmeter:openmeter-subjects-api
  name: OpenMeter Subjects API
  description: Subjects that usage is metered against.
  humanURL: https://openmeter.io/docs/getting-started/ingestion
  baseURL: https://openmeter.cloud/api/v1
  tags:
  - Subjects
  properties:
  - type: OpenAPI
    url: openapi/openmeter-subjects-api-openapi.yml
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/ingestion
  - type: APIReference
    url: https://openmeter.io/docs/api
  - type: PostmanCollection
    url: collections/openmeter.postman_collection.json
  - type: OpenCollection
    url: collections/openmeter.opencollection.json
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/meters
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/query-usage
  - type: Documentation
    url: https://openmeter.io/docs/getting-started/subjects
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/overview
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/features
  - type: Documentation
    url: https://openmeter.io/docs/entitlements/grants
  - type: Documentation
    url: https://openmeter.io/docs/notifications/overview
  - type: Documentation
    url: https://openmeter.io/docs/billing/overview
common:
- url: https://openmeter.io/blog
  type: Blog
- url: https://openmeter.io/blog/rss.xml
  type: BlogRSS
- type: CapabilityMap
  url: capabilities/openmeter-capability-edges.yml
  name: OpenMeter Business Capability Map
- type: AgenticAccess
  url: agentic-access/openmeter-agentic-access.yml
- type: TrustCenter
  url: security/openmeter-trust-center.yml
- type: DomainSecurity
  url: security/openmeter-domain-security.yml
- type: Authentication
  url: authentication/openmeter-authentication.yml
- type: GitHubOrganization
  url: https://github.com/openmeterio
- type: LinkedIn
  url: https://www.linkedin.com/company/openmeter
- type: Website
  url: https://openmeter.io/
- type: Documentation
  url: https://openmeter.io/docs
- type: Plans
  url: plans/openmeter-plans-pricing.yml
- type: RateLimits
  url: rate-limits/openmeter-rate-limits.yml
- type: FinOps
  url: finops/openmeter-finops.yml
- type: SpectralRules
  url: https://github.com/openmeterio/openmeter/blob/e00163c4b8a0726198c95a9ccb158d38ea8c05b8/.spectral.yaml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-parent: kong
x-relationship: acquisition
x-acquired: 2025

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

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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/openmeter"

All providers

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

Every operation they expose

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

How their score was established

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

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

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