> ## Documentation Index
> Fetch the complete documentation index at: https://docs.revring.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# List Custom Tools

> Get custom tools configured for an agent



## OpenAPI

````yaml GET /agents/{id}/custom-tools
openapi: 3.1.0
info:
  title: RevRing Voice AI API
  description: >-
    RevRing Voice AI platform API for managing AI voice agents, phone calls, SIP
    trunks, and analytics. Build intelligent voice applications that can handle
    inbound and outbound phone calls with AI-powered conversational agents.
  version: 1.0.0
  contact:
    name: RevRing Support
    url: https://revring.ai
servers:
  - url: https://api.revring.ai/v1
    description: Production API
security:
  - apiKeyAuth: []
tags:
  - name: Messaging Connections
    description: Connect messaging providers so agents can send text messages
  - name: Messages
    description: Send text messages and read your message log
  - name: Conversations
    description: List and clear managed conversation threads
  - name: SIP Trunks
    description: Manage SIP trunks for connecting agents to the phone network
  - name: Agents
    description: Manage AI voice agents and their configuration
  - name: Agent Folders
    description: Organize agents into folders for dashboard navigation
  - name: Calls
    description: Manage and query phone calls
  - name: Analytics
    description: Get analytics and metrics about your calls
  - name: Knowledge Bases
    description: >-
      Manage knowledge bases and sources for agent retrieval-augmented
      generation
  - name: Test Suites
    description: Manage test suites, test cases, and test runs for agent evaluation
  - name: Voices
    description: Browse the voices available to your organization for agent speech
paths:
  /agents/{id}/custom-tools:
    parameters:
      - name: id
        in: path
        required: true
        description: Agent ID
        schema:
          type: string
          format: uuid
    get:
      tags:
        - Agents
      summary: List Custom Tools
      description: Get custom tools configured for an agent
      operationId: listAgentCustomTools
      responses:
        '200':
          description: List of custom tools
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/AgentCustomTool'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '402':
          $ref: '#/components/responses/BillingInactiveError'
        '404':
          $ref: '#/components/responses/NotFoundError'
components:
  schemas:
    AgentCustomTool:
      type: object
      description: Custom function calling tool for agents
      properties:
        id:
          type: string
          format: uuid
        name:
          type: string
          description: Tool name (used in function calls)
        webhookUrl:
          type: string
          format: uri
          description: Webhook URL to invoke
        enabled:
          type: boolean
        schema:
          type: object
          description: OpenAI function schema defining parameters
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
        httpMethod:
          type: string
          enum:
            - GET
            - POST
            - PUT
            - PATCH
            - DELETE
          description: HTTP method used when calling the webhook. Defaults to `POST`.
        headers:
          type: array
          nullable: true
          description: Custom HTTP headers to include in webhook requests
          items:
            $ref: '#/components/schemas/KeyValuePair'
        queryParams:
          type: array
          nullable: true
          description: Custom query parameters appended to the webhook URL
          items:
            $ref: '#/components/schemas/KeyValuePair'
        sendRawRequestBody:
          type: boolean
          description: >-
            When true, sends tool arguments directly as the request body instead
            of the default wrapper
      required:
        - id
        - name
        - webhookUrl
        - enabled
        - createdAt
        - updatedAt
    KeyValuePair:
      type: object
      description: A key-value pair
      properties:
        key:
          type: string
          description: Header or parameter name
        value:
          type: string
          description: Header or parameter value
      required:
        - key
        - value
  responses:
    UnauthorizedError:
      description: Authentication required or API key invalid
      content:
        application/json:
          schema:
            type: object
            properties:
              error:
                type: string
                example: unauthorized
    BillingInactiveError:
      description: Subscription inactive or billing issue
      content:
        application/json:
          schema:
            type: object
            properties:
              error:
                type: string
                example: billing_inactive
    NotFoundError:
      description: Resource not found
      content:
        application/json:
          schema:
            type: object
            properties:
              error:
                type: string
                example: not_found
  securitySchemes:
    apiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: >-
        API key for authentication. Generate API keys from the RevRing
        dashboard.

````