PlayHT

PlayHT External Functions API

Tool definitions for voice agents.

GitHub OpenAPI

Operations 2

GET /api/v1/external-functions List external functions
POST /api/v1/external-functions Create an external function

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/playht/refs/heads/main/openapi/playht-external-functions-api-openapi.yml

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OpenAPI Specification

playht-external-functions-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: PlayAI Agents External Functions API
  description: 'PlayAI (formerly PlayHT) is a generative voice platform. The REST API

    covers text-to-speech generation (PlayDialog, Dialog 1.0 Turbo, and

    Play 3.0 Mini models), voice catalog, voice agents, external functions,

    and PlayNote document-to-audio jobs.


    Authentication uses two headers: `AUTHORIZATION` carries the secret API

    key, and `X-USER-ID` carries the PlayAI user identifier.

    '
  version: 1.0.0
  contact:
    name: API Evangelist
    email: kin@apievangelist.com
  license:
    name: Proprietary
servers:
- url: https://api.play.ai
  description: PlayAI production API
security:
- apiKey: []
  userId: []
tags:
- name: External Functions
  description: Tool definitions for voice agents.
paths:
  /api/v1/external-functions:
    get:
      tags:
      - External Functions
      summary: List external functions
      responses:
        '200':
          description: External function collection.
    post:
      tags:
      - External Functions
      summary: Create an external function
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ExternalFunction'
      responses:
        '201':
          description: External function created.
components:
  schemas:
    ExternalFunction:
      type: object
      properties:
        id:
          type: string
        name:
          type: string
        description:
          type: string
        url:
          type: string
          format: uri
        method:
          type: string
        parameters:
          type: object
          additionalProperties: true
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: AUTHORIZATION
      description: Secret API key issued in the PlayAI console.
    userId:
      type: apiKey
      in: header
      name: X-USER-ID
      description: PlayAI user identifier paired with the API key.