Inworld AI

Inworld AI STT API

Speech-to-Text transcription

Documentation GitHub OpenAPI

Operations 1

POST /v1/stt/transcribe Transcribe audio #

Specifications

⚙

OpenAPI

https://raw.githubusercontent.com/api-evangelist/inworld/refs/heads/main/openapi/inworld-stt-api-openapi.yml

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/inworld-stt-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 form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

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

OpenAPI Specification

openapi: 3.2.0
info:
  title: Inworld AI Models STT API
  description: 'REST API for Inworld AI''s voice and conversational AI platform, covering

    Text-to-Speech (synchronous and streaming), Speech-to-Text, voice

    management, models, and the LLM Router that fronts 220+ third-party

    models via the OpenAI-compatible chat completions endpoint.

    '
  version: '1.0'
  contact:
    name: Inworld AI
    url: https://docs.inworld.ai
servers:
- url: https://api.inworld.ai
  description: Production API
security:
- basicAuth: []
tags:
- name: STT
  description: Speech-to-Text transcription
paths:
  /v1/stt/transcribe:
    post:
      tags:
      - STT
      summary: Transcribe audio
      description: Transcribe audio to text with Inworld's Realtime STT API.
      operationId: transcribeAudio
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                audioContent:
                  type: string
                  format: byte
                  description: Base64-encoded audio bytes
                language:
                  type: string
                  example: en-US
      responses:
        '200':
          description: Transcription result
          content:
            application/json:
              schema:
                type: object
                properties:
                  transcript:
                    type: string
                  language:
                    type: string
components:
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: 'Authentication uses HTTP Basic with the API key as the username

        (password empty), encoded as: `Authorization: Basic base64(apiKey:)`.

        Get an API key at https://platform.inworld.ai.

        '