Inworld AI

Inworld AI provides voice and conversational AI building blocks for games and interactive media. Public APIs cover Text-to-Speech, Speech-to-Text, a Realtime speech-to-speech API, and an LLM Router that fronts 220+ third-party models with unified billing.

4 APIs 0 Features

AIVoiceCharactersGamesConversational

APIs

Inworld Text-to-Speech API

TTS-2 and TTS-1.5 (Max/Mini) models for character voice synthesis. Priced per 1M characters with plan-tier discounts.

Inworld Speech-to-Text API

Multi-provider transcription API priced at $0.35/hour standard rate.

Inworld Realtime API

Low-latency speech-to-speech voice API for natural conversation experiences. Included with all plans.

Inworld LLM Router API

Routing layer over 220+ LLM models, billed at provider cost via Inworld's unified API.

Resources

Sources

aid: inworld
url: https://raw.githubusercontent.com/api-evangelist/inworld/refs/heads/main/apis.yml
name: Inworld AI
x-type: company
description: >-
  Inworld AI provides voice and conversational AI building blocks for games and interactive
  media. Public APIs cover Text-to-Speech, Speech-to-Text, a Realtime speech-to-speech API,
  and an LLM Router that fronts 220+ third-party models with unified billing.
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - AI
  - Voice
  - Characters
  - Games
  - Conversational
created: '2026-05-08'
modified: '2026-05-08'
specificationVersion: '0.19'
apis:
  - aid: inworld:tts
    name: Inworld Text-to-Speech API
    description: >-
      TTS-2 and TTS-1.5 (Max/Mini) models for character voice synthesis. Priced per 1M
      characters with plan-tier discounts.
    image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: https://docs.inworld.ai/docs/tts
    baseURL: https://api.inworld.ai
    tags:
      - TTS
      - Speech Synthesis
      - Character Voice
    properties:
      - type: Documentation
        url: https://docs.inworld.ai/docs/tts
      - type: Pricing
        url: https://inworld.ai/pricing
  - aid: inworld:stt
    name: Inworld Speech-to-Text API
    description: >-
      Multi-provider transcription API priced at $0.35/hour standard rate.
    image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: https://docs.inworld.ai/docs/stt
    baseURL: https://api.inworld.ai
    tags:
      - STT
      - Transcription
    properties:
      - type: Documentation
        url: https://docs.inworld.ai/docs/stt
  - aid: inworld:realtime
    name: Inworld Realtime API
    description: >-
      Low-latency speech-to-speech voice API for natural conversation experiences. Included
      with all plans.
    image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: https://docs.inworld.ai/docs/realtime
    baseURL: https://api.inworld.ai
    tags:
      - Realtime
      - Speech-to-Speech
      - Voice
    properties:
      - type: Documentation
        url: https://docs.inworld.ai/docs/realtime
  - aid: inworld:llm-router
    name: Inworld LLM Router API
    description: >-
      Routing layer over 220+ LLM models, billed at provider cost via Inworld's unified API.
    image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    humanURL: https://docs.inworld.ai/docs/llm-router
    baseURL: https://api.inworld.ai
    tags:
      - LLM
      - Router
      - Inference
    properties:
      - type: Documentation
        url: https://docs.inworld.ai/docs/llm-router
common:
  - type: Website
    url: https://inworld.ai/
  - type: Documentation
    url: https://docs.inworld.ai/
  - type: Plans
    url: plans/inworld-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/inworld-rate-limits.yml
  - type: FinOps
    url: finops/inworld-finops.yml
maintainers:
  - FN: Kin Lane
    email: [email protected]