Open Policy Agent

Open Policy Agent Compile API

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

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-compile-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 API
  description: API for partially evaluating Rego queries in OPA (Open Policy Agent).
  version: 1.0.0
tags:
- name: Compile
paths:
  /v1/compile:
    post:
      summary: Partially Evaluate a Query
      description: Partially evaluate a Rego query and obtain a simplified version of the policy.
      requestBody:
        description: Request to partially evaluate a query.
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                query:
                  type: string
                  description: Query to partially evaluate and compile.
                  example: data.example.allow == true
                input:
                  type: object
                  description: Input document to use during partial evaluation.
                  example:
                    subject:
                      clearance_level: 4
                options:
                  type: object
                  description: Additional options for partial evaluation.
                  properties:
                    disableInlining:
                      type: array
                      items:
                        type: string
                  example:
                    disableInlining: []
                unknowns:
                  type: array
                  description: Terms to treat as unknown during partial evaluation.
                  items:
                    type: string
                  example:
                  - data.reports
      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 performance metrics.
        schema:
          type: boolean
      - name: instrument
        in: query
        required: false
        description: Instrument query evaluation and return additional metrics.
        schema:
          type: boolean
      responses:
        '200':
          description: Query partially evaluated successfully.
          content:
            application/json:
              schema:
                type: object
                properties:
                  result:
                    type: object
                    description: Result of the partial evaluation.
                    properties:
                      queries:
                        type: array
                        description: Simplified queries.
                        items:
                          type: array
                          items:
                            type: object
                            properties:
                              index:
                                type: integer
                              terms:
                                type: array
                                items:
                                  type: object
                                  properties:
                                    type:
                                      type: string
                                    value:
                                      type: object
          examples:
            always_true:
              summary: Query always true
              value:
                result:
                  queries:
                  - []
            partially_evaluated:
              summary: Partially evaluated query
              value:
                result:
                  queries:
                  - - index: 0
                      terms:
                      - type: ref
                        value:
                        - type: var
                          value: gte
                      - type: number
                        value: 4
                      - type: ref
                        value:
                        - type: var
                          value: data
                        - type: string
                          value: reports
                        - type: var
                          value: i1
                        - type: string
                          value: clearance_level
        '400':
          description: Bad request due to malformed input or query.
        '500':
          description: Internal server error.
      tags:
      - Compile

Open Policy Agent Compile API

Documentation

Specifications

Schemas & Data

Other Resources