Paragon Custom Integrations API

openapi: 3.1.0
info:
  title: Paragon ActionKit Credentials Custom Integrations API
  description: ActionKit is an API to give your AI agent or app access to Paragon's catalog of pre-built Integration Tools across 130+ SaaS applications. ActionKit exposes a Universal API (Tools API) for listing and executing synchronous CRUD actions, and is paired with a Triggers API for event subscriptions. Paragon also publishes an MCP server (github.com/useparagon/paragon-mcp) that wraps ActionKit so agents can call integration tools via the Model Context Protocol. Requests are scoped to a Connected User via Paragon User Token (JWT) Bearer authentication.
  version: 1.0.0
  contact:
    name: Paragon
    url: https://www.useparagon.com
  license:
    name: Proprietary
    url: https://www.useparagon.com/terms-of-service
servers:
- url: https://actionkit.useparagon.com
  description: Paragon ActionKit API (Cloud)
security:
- bearerAuth: []
tags:
- name: Custom Integrations
  description: Proxy requests to custom integration APIs.
paths:
  /projects/{projectId}/sdk/proxy/custom/{integrationId}/{apiPath}:
    get:
      operationId: proxyCustomGetRequest
      summary: Paragon Proxy GET request to custom integration
      description: Send a GET request to a custom integration API on behalf of a Connected User.
      tags:
      - Custom Integrations
      parameters:
      - name: projectId
        in: path
        required: true
        description: Your Paragon Project ID.
        schema:
          type: string
      - name: integrationId
        in: path
        required: true
        description: The ID of the custom integration.
        schema:
          type: string
      - name: apiPath
        in: path
        required: true
        description: The API path of the custom integration to send the request to.
        schema:
          type: string
      responses:
        '200':
          description: Successful proxy response from the custom integration.
          content:
            application/json:
              schema:
                type: object
        '401':
          description: Unauthorized. Invalid or missing Paragon User Token.
        '404':
          description: Integration not found or not enabled for the user.
        '429':
          description: Rate limit exceeded.
    post:
      operationId: proxyCustomPostRequest
      summary: Paragon Proxy POST request to custom integration
      description: Send a POST request to a custom integration API on behalf of a Connected User.
      tags:
      - Custom Integrations
      parameters:
      - name: projectId
        in: path
        required: true
        description: Your Paragon Project ID.
        schema:
          type: string
      - name: integrationId
        in: path
        required: true
        description: The ID of the custom integration.
        schema:
          type: string
      - name: apiPath
        in: path
        required: true
        description: The API path of the custom integration to send the request to.
        schema:
          type: string
      requestBody:
        description: The request body to send to the custom integration API.
        content:
          application/json:
            schema:
              type: object
      responses:
        '200':
          description: Successful proxy response from the custom integration.
          content:
            application/json:
              schema:
                type: object
        '401':
          description: Unauthorized. Invalid or missing Paragon User Token.
        '404':
          description: Integration not found or not enabled for the user.
        '429':
          description: Rate limit exceeded.
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Paragon User Token. A signed JWT token used to authenticate a Connected User.