Open Policy Agent

Open Policy Agent Query API

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

Documentation GitHub OpenAPI

Work with this as data

Every API 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 apis

7 MCP tools reach this

find_apisBrowse and filter every API in the catalog.
get_api_artifactsOne API's artifacts, grouped by type.
get_openapiThe primary OpenAPI for this API.
find_similar_apisAPIs that look like this one.
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 API

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

All apis

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

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

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

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

OpenAPI Specification

openapi: 3.1.0
info:
  title: Compile Query API
  description: API for partially evaluating Rego queries in OPA (Open Policy Agent).
  version: 1.0.0
tags:
- name: Query
paths:
  /v1/query:
    get:
      summary: Execute an Ad-hoc Query (GET)
      description: Execute an ad-hoc query by providing the query as a URL parameter.
      parameters:
      - name: q
        in: query
        required: true
        description: Ad-hoc query to execute (URL encoded)
        schema:
          type: string
      - name: pretty
        in: query
        required: false
        description: Format response for human readability
        schema:
          type: boolean
      - name: explain
        in: query
        required: false
        description: Return query explanation
        schema:
          type: string
          enum:
          - notes
          - fails
          - full
          - debug
      - name: metrics
        in: query
        required: false
        description: Return query performance metrics
        schema:
          type: boolean
      responses:
        '200':
          description: Query executed successfully
          content:
            application/json:
              schema:
                type: object
                properties:
                  result:
                    type: array
                    items:
                      type: object
        '400':
          description: Bad request
        '500':
          description: Server error
        '501':
          description: Streaming not implemented
      tags:
      - Query
    post:
      summary: Execute an Ad-hoc Query (POST)
      description: Execute an ad-hoc query by providing the query in the request body.
      requestBody:
        description: Query and optional input document in JSON format.
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                query:
                  type: string
                  description: Ad-hoc query to execute
                input:
                  type: object
                  description: Optional input document
      parameters:
      - name: pretty
        in: query
        required: false
        description: Format response for human readability
        schema:
          type: boolean
      - name: explain
        in: query
        required: false
        description: Return query explanation
        schema:
          type: string
          enum:
          - notes
          - fails
          - full
          - debug
      - name: metrics
        in: query
        required: false
        description: Return query performance metrics
        schema:
          type: boolean
      responses:
        '200':
          description: Query executed successfully
          content:
            application/json:
              schema:
                type: object
                properties:
                  result:
                    type: array
                    items:
                      type: object
        '400':
          description: Bad request
        '500':
          description: Server error
        '501':
          description: Streaming not implemented
      tags:
      - Query

Open Policy Agent Query API

Documentation

Specifications

Schemas & Data

Other Resources