Open Policy Agent

Open Policy Agent (OPA) is an open-source project that provides a flexible and powerful policy engine for cloud-native environments. OPA enables users to define and enforce policies across their infrastructure, applications, and services through a declarative language called Rego. OPA integrates seamlessly with popular tools and frameworks like Kubernetes, Istio, and Envoy, making it easy to implement fine-grained access control, security, and compliance policies.

Open Policy Agent publishes 8 API contracts indexed on the APIs.io network, including Compile API, Config API, Data API, and 5 more. Tagged areas include Policies and Standards.

The Open Policy Agent catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Open Policy Agent’s developer surface includes documentation, getting-started guide, authentication, engineering blog, changelog, Stack Overflow tag, and 19 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

36.2/100 thin ▬ flat Agent 25/100 agent aware Front door AI 3/6 light Heartbeat 50/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFree

7 published contracts

Policies Standards

Kin Score

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

Composite quality — 36.2/100 · thin

Contract Quality 9.1 / 19

Developer Ergonomics 6.8 / 15

Access Clarity 0.8 / 15

Operational Transparency 3.6 / 10

Contract Governance 0.9 / 9

Discoverability 4.0 / 8

Regulatory Posture 3.4 / 15

Create-or-Update Ergonomics 2.2 / 10

Agent readiness — 25/100 · 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 8 / 8

Request/Response Examples 7 / 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 5 / 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/.

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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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

7 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
Contract Quality scores 48.6 — up to +12.9 composite points
Developer Ergonomics scores 45.2 — up to +11.0 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/open-policy-agent/apis.yml: open an issue on github.com/api-evangelist/open-policy-agent 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 →

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
Artifact Hub Cloud-Native Packages	standard	52.4	-	-

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 8

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

Open Policy Agent Compile API

The Compile API from Open Policy Agent — 1 operation(s) for compile.

Open Policy Agent Config API

The Config API from Open Policy Agent — 1 operation(s) for config.

Open Policy Agent Data API

The Data API from Open Policy Agent — 2 operation(s) for data.

Open Policy Agent Health API

The Health API from Open Policy Agent — 2 operation(s) for health.

Open Policy Agent Policies API

The Policies API from Open Policy Agent — 2 operation(s) for policies.

Open Policy Agent Query API

The Query API API from Open Policy Agent — 1 operation(s) for query api.

Open Policy Agent Query API

The Query API from Open Policy Agent — 1 operation(s) for query.

Open Policy Agent Status API

The Status API from Open Policy Agent — 1 operation(s) for status.

Scroll for all 8

Open Collections 15

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

Compile API

OPEN COLLECTION

Config API

OPEN COLLECTION

Data API

OPEN COLLECTION

Health API

OPEN COLLECTION

Compile API

OPEN COLLECTION

Compile Config API

OPEN COLLECTION

Compile Data API

OPEN COLLECTION

Compile Health API

OPEN COLLECTION

Compile Policies API

OPEN COLLECTION

Compile Query API API

OPEN COLLECTION

Compile Query API

OPEN COLLECTION

Compile Status API

OPEN COLLECTION

Policy API

OPEN COLLECTION

Query API

OPEN COLLECTION

Status API

OPEN COLLECTION

Scroll for all 15

Open Policy Agent API pricing

Not yet checked against Open Policy Agent's own pricing page. Compiled by API Evangelist on 2026-05-05 from www.openpolicyagent.org/; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Open Source freemium	Free

Plan details, limits and sources →

Rate limits

Self-hosted throughput: see operator deployment sizing varies

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

Pricing Plans 1

Published pricing tiers and plan structures.

Open Policy Agent Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Open Policy Agent 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.

Open Policy Agent

SLA

FinOps 1

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

Open Policy Agent Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Opa Context

0 classes · 12 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Open Policy Agent — jsonschema rules

6 rules · 5 warnings 1 info

SPECTRAL

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

Open Policy Agent Resources

0 properties

JSON SCHEMA

Security Posture 2

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

Open Policy Agent Domain Security

TLSv1.3 · HSTS

SECURITY

Open Policy Agent Vulnerability Disclosure

no policy recorded

SECURITY

Agentic Access 1

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

Open Policy Agent Agentic Access

18 operations · 8 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 3

Reference material describing how the API behaves

JSONSchema

JSONSchema

Documentation

Documentation

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

JSONLD

JSONLD

ErrorCodes

ErrorCodes

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubRepository

PostmanWorkspace

GitHubRepository

Access & Security 4

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Security

Security

Operate 5

Status, limits, changes, and where to get help

RateLimits

Community

Slack

ChangeLog

StackOverflow

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

Source (apis.yml)

aid: open-policy-agent
url: https://raw.githubusercontent.com/api-evangelist/open-policy-agent/refs/heads/main/apis.yml
x-docs-platform: docusaurus
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-04
apis:
- aid: open-policy-agent:open-policy-agent-compile-api
  name: Open Policy Agent Compile API
  description: The Compile API from Open Policy Agent — 1 operation(s) for compile.
  humanURL: https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api
  tags:
  - Compile
  properties:
  - type: OpenAPI
    url: openapi/open-policy-agent-compile-api-openapi.yml
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api
  - type: JSONSchema
    url: json-schema/opa-policy-schema.json
  - type: BrunoCollection
    url: policy/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#data-api
  - type: BrunoCollection
    url: data/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#query-api
  - type: BrunoCollection
    url: query/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#compile-api
  - type: BrunoCollection
    url: compile/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#health-api
  - type: BrunoCollection
    url: health/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#config-api
  - type: BrunoCollection
    url: config/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#status-api
  - type: BrunoCollection
    url: status/bruno.json
- aid: open-policy-agent:open-policy-agent-config-api
  name: Open Policy Agent Config API
  description: The Config API from Open Policy Agent — 1 operation(s) for config.
  humanURL: https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api
  tags:
  - Config
  properties:
  - type: OpenAPI
    url: openapi/open-policy-agent-config-api-openapi.yml
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api
  - type: JSONSchema
    url: json-schema/opa-policy-schema.json
  - type: BrunoCollection
    url: policy/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#data-api
  - type: BrunoCollection
    url: data/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#query-api
  - type: BrunoCollection
    url: query/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#compile-api
  - type: BrunoCollection
    url: compile/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#health-api
  - type: BrunoCollection
    url: health/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#config-api
  - type: BrunoCollection
    url: config/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#status-api
  - type: BrunoCollection
    url: status/bruno.json
- aid: open-policy-agent:open-policy-agent-data-api
  name: Open Policy Agent Data API
  description: The Data API from Open Policy Agent — 2 operation(s) for data.
  humanURL: https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api
  tags:
  - Data
  properties:
  - type: OpenAPI
    url: openapi/open-policy-agent-data-api-openapi.yml
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api
  - type: JSONSchema
    url: json-schema/opa-policy-schema.json
  - type: BrunoCollection
    url: policy/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#data-api
  - type: BrunoCollection
    url: data/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#query-api
  - type: BrunoCollection
    url: query/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#compile-api
  - type: BrunoCollection
    url: compile/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#health-api
  - type: BrunoCollection
    url: health/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#config-api
  - type: BrunoCollection
    url: config/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#status-api
  - type: BrunoCollection
    url: status/bruno.json
- aid: open-policy-agent:open-policy-agent-health-api
  name: Open Policy Agent Health API
  description: The Health API from Open Policy Agent — 2 operation(s) for health.
  humanURL: https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api
  tags:
  - Health
  properties:
  - type: OpenAPI
    url: openapi/open-policy-agent-health-api-openapi.yml
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api
  - type: JSONSchema
    url: json-schema/opa-policy-schema.json
  - type: BrunoCollection
    url: policy/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#data-api
  - type: BrunoCollection
    url: data/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#query-api
  - type: BrunoCollection
    url: query/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#compile-api
  - type: BrunoCollection
    url: compile/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#health-api
  - type: BrunoCollection
    url: health/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#config-api
  - type: BrunoCollection
    url: config/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#status-api
  - type: BrunoCollection
    url: status/bruno.json
- aid: open-policy-agent:open-policy-agent-policies-api
  name: Open Policy Agent Policies API
  description: The Policies API from Open Policy Agent — 2 operation(s) for policies.
  humanURL: https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api
  tags:
  - Policies
  properties:
  - type: OpenAPI
    url: openapi/open-policy-agent-policies-api-openapi.yml
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api
  - type: JSONSchema
    url: json-schema/opa-policy-schema.json
  - type: BrunoCollection
    url: policy/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#data-api
  - type: BrunoCollection
    url: data/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#query-api
  - type: BrunoCollection
    url: query/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#compile-api
  - type: BrunoCollection
    url: compile/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#health-api
  - type: BrunoCollection
    url: health/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#config-api
  - type: BrunoCollection
    url: config/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#status-api
  - type: BrunoCollection
    url: status/bruno.json
- aid: open-policy-agent:open-policy-agent-query-api-api
  name: Open Policy Agent Query API
  description: The Query API API from Open Policy Agent — 1 operation(s) for query api.
  humanURL: https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api
  tags:
  - Query API
  properties:
  - type: OpenAPI
    url: openapi/open-policy-agent-query-api-api-openapi.yml
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api
  - type: JSONSchema
    url: json-schema/opa-policy-schema.json
  - type: BrunoCollection
    url: policy/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#data-api
  - type: BrunoCollection
    url: data/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#query-api
  - type: BrunoCollection
    url: query/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#compile-api
  - type: BrunoCollection
    url: compile/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#health-api
  - type: BrunoCollection
    url: health/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#config-api
  - type: BrunoCollection
    url: config/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#status-api
  - type: BrunoCollection
    url: status/bruno.json
- aid: open-policy-agent:open-policy-agent-query-api
  name: Open Policy Agent Query API
  description: The Query API from Open Policy Agent — 1 operation(s) for query.
  humanURL: https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api
  tags:
  - Query
  properties:
  - type: OpenAPI
    url: openapi/open-policy-agent-query-api-openapi.yml
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api
  - type: JSONSchema
    url: json-schema/opa-policy-schema.json
  - type: BrunoCollection
    url: policy/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#data-api
  - type: BrunoCollection
    url: data/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#query-api
  - type: BrunoCollection
    url: query/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#compile-api
  - type: BrunoCollection
    url: compile/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#health-api
  - type: BrunoCollection
    url: health/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#config-api
  - type: BrunoCollection
    url: config/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#status-api
  - type: BrunoCollection
    url: status/bruno.json
- aid: open-policy-agent:open-policy-agent-status-api
  name: Open Policy Agent Status API
  description: The Status API from Open Policy Agent — 1 operation(s) for status.
  humanURL: https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api
  tags:
  - Status
  properties:
  - type: OpenAPI
    url: openapi/open-policy-agent-status-api-openapi.yml
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#policy-api
  - type: JSONSchema
    url: json-schema/opa-policy-schema.json
  - type: BrunoCollection
    url: policy/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#data-api
  - type: BrunoCollection
    url: data/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#query-api
  - type: BrunoCollection
    url: query/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#compile-api
  - type: BrunoCollection
    url: compile/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#health-api
  - type: BrunoCollection
    url: health/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#config-api
  - type: BrunoCollection
    url: config/bruno.json
  - type: Documentation
    url: https://www.openpolicyagent.org/docs/latest/rest-api/#status-api
  - type: BrunoCollection
    url: status/bruno.json
name: Open Policy Agent
tags:
- Policies
- Standards
kind: contract
deliveryModel:
  model: unknown
  license_evidence:
    not_product:
    - api-search/open-policy-agent
    - open-policy-agent/opa
  open_source: unknown
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  - repository-not-product
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: free
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Free
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/open-policy-agent.png
access: 3rd-Party
common:
- type: Plans
  url: plans/open-policy-agent-plans-pricing.yml
- type: RateLimits
  url: rate-limits/open-policy-agent-rate-limits.yml
- type: FinOps
  url: finops/open-policy-agent-finops.yml
- type: AgenticAccess
  url: agentic-access/open-policy-agent-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/open-policy-agent-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/open-policy-agent-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/open-policy-agent
- url: json-schema/opa-policy-schema.json
  name: OPA Policy Schema
  type: JSONSchema
- url: json-ld/opa-context.jsonld
  name: OPA JSON-LD Context
  type: JSONLD
- url: https://www.openpolicyagent.org/
  name: Website
  type: Website
- url: https://www.openpolicyagent.org/docs/latest/
  name: Documentation
  type: Documentation
- url: https://www.openpolicyagent.org/docs/latest/rest-api/
  name: REST API Documentation
  type: Documentation
- url: https://www.openpolicyagent.org/docs/latest/#running-opa
  name: Getting Started
  type: GettingStarted
- url: https://www.openpolicyagent.org/docs/latest/rest-api/#authentication
  name: Authentication
  type: Authentication
- url: https://www.openpolicyagent.org/docs/latest/rest-api/#errors
  name: Errors
  type: ErrorCodes
- url: https://github.com/open-policy-agent
  name: GitHub Organization
  type: GitHubOrganization
- url: https://github.com/open-policy-agent/opa
  name: OPA GitHub Repository
  type: GitHubRepository
- url: https://blog.openpolicyagent.org/
  name: Blog
  type: Blog
- url: https://www.openpolicyagent.org/community/
  name: Community
  type: Community
- url: https://slack.openpolicyagent.org/
  name: Slack
  type: Slack
- url: https://github.com/open-policy-agent/opa/blob/main/CHANGELOG.md
  name: Change Log
  type: ChangeLog
- url: https://github.com/open-policy-agent/opa/security/policy
  name: Security
  type: Security
- url: https://stackoverflow.com/questions/tagged/open-policy-agent
  name: Stack Overflow
  type: StackOverflow
- url: https://www.postman.com/api-evangelist/open-policy-agent/overview
  name: Postman Workspace
  type: PostmanWorkspace
- url: https://github.com/api-search/open-policy-agent
  name: GitHub Repository
  type: GitHubRepository
- type: Integrations
  url: https://www.openpolicyagent.org/ecosystem
created: '2024-11-18'
modified: '2026-09-16'
position: Consuming
description: Open Policy Agent (OPA) is an open-source project that provides a flexible and powerful policy engine for cloud-native
  environments. OPA enables users to define and enforce policies across their infrastructure, applications, and services through
  a declarative language called Rego. OPA integrates seamlessly with popular tools and frameworks like Kubernetes, Istio,
  and Envoy, making it easy to implement fine-grained access control, security, and compliance policies.
integrations:
- name: OPA
- name: GitHub
- name: Slack
- name: JavaScript
- name: Java
- name: C#
- name: Swift
- name: Clojure
- name: Rust
- name: PHP
- name: Zig
- name: CNCF
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
specificationVersion: '0.23'

Open Policy Agent API — frequently asked questions

Does Open Policy Agent have an API?

Yes. APIs.io lists 8 APIs from Open Policy Agent, including Open Policy Agent Compile API, Open Policy Agent Config API and Open Policy Agent Data API, and 5 more.

Is there an OpenAPI specification for the Open Policy Agent API?

Yes. APIs.io indexes 8 OpenAPI specifications for Open Policy Agent, each linked for download from this page.

How do I authenticate with the Open Policy Agent API?

Open Policy Agent uses bearer-token authentication.

How much does the Open Policy Agent API cost?

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

Is the Open Policy Agent API ready for AI agents?

Open Policy Agent has a Kin Score of 36.2 out of 100 (thin) and an Agent Readiness score of 24.9 (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/open-policy-agent"

All providers

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

Every operation they expose

curl "https://apis.io/api/v1/providers/open-policy-agent/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/open-policy-agent/evidence"

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