aid: unrealspeech
url: https://raw.githubusercontent.com/api-evangelist/unrealspeech/refs/heads/main/apis.yml
name: Unreal Speech
kind: company
description: Unreal Speech is a low-cost, high-scale text-to-speech (TTS) API for
  turning text into natural-sounding speech. It exposes a small REST surface -
  a low-latency HTTP streaming endpoint, a synchronous speech endpoint that returns
  an MP3 plus per-word or per-sentence timestamps, and an asynchronous synthesis
  tasks endpoint for long-form audio up to 500,000 characters. Requests are
  authenticated with a Bearer API key issued from the dashboard, and pricing is
  metered per character with a free monthly allowance.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Text to Speech
- TTS
- Speech Synthesis
- Audio
- Voice
- AI
created: '2026-07-11'
modified: '2026-07-11'
specificationVersion: '0.19'
apis:
- aid: unrealspeech:unrealspeech-speech-api
  name: Unreal Speech Speech API
  tags:
  - Text to Speech
  - Speech Synthesis
  - Timestamps
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.unrealspeech.com/reference/speech
  baseURL: https://api.v7.unrealspeech.com
  properties:
  - url: https://docs.unrealspeech.com/reference/getting-started-with-our-api
    type: Documentation
  - url: https://docs.unrealspeech.com/reference/speech
    type: APIReference
  - url: openapi/unrealspeech-openapi.yml
    type: OpenAPI
  - url: collections/unrealspeech.postman_collection.json
    type: PostmanCollection
  - url: collections/unrealspeech.opencollection.json
    type: OpenCollection
  description: Synchronous text-to-speech for medium-length text (up to 3,000
    characters). Returns an MP3 audio URL plus word- or sentence-level timestamp
    URLs, with selectable voice, bitrate, speed, and pitch.
- aid: unrealspeech:unrealspeech-stream-api
  name: Unreal Speech Stream API
  tags:
  - Text to Speech
  - Streaming
  - Low Latency
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.unrealspeech.com/reference/stream
  baseURL: https://api.v7.unrealspeech.com
  properties:
  - url: https://docs.unrealspeech.com/reference/getting-started-with-our-api
    type: Documentation
  - url: https://docs.unrealspeech.com/reference/stream
    type: APIReference
  - url: openapi/unrealspeech-openapi.yml
    type: OpenAPI
  - url: collections/unrealspeech.postman_collection.json
    type: PostmanCollection
  - url: collections/unrealspeech.opencollection.json
    type: OpenCollection
  description: Low-latency HTTP streaming synthesis for short text (up to 1,000
    characters), returning audio bytes directly in the response - typically in
    around 0.3 seconds - for time-sensitive uses like chatbots and voice agents.
    This is HTTP chunked streaming, not a WebSocket.
- aid: unrealspeech:unrealspeech-synthesis-tasks-api
  name: Unreal Speech Synthesis Tasks API
  tags:
  - Text to Speech
  - Async
  - Long Form
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.unrealspeech.com/reference/synthesistasks
  baseURL: https://api.v7.unrealspeech.com
  properties:
  - url: https://docs.unrealspeech.com/reference/getting-started-with-our-api
    type: Documentation
  - url: https://docs.unrealspeech.com/reference/synthesistasks
    type: APIReference
  - url: openapi/unrealspeech-openapi.yml
    type: OpenAPI
  - url: collections/unrealspeech.postman_collection.json
    type: PostmanCollection
  - url: collections/unrealspeech.opencollection.json
    type: OpenCollection
  description: Asynchronous synthesis for long-form audio (up to 500,000
    characters, e.g. audiobooks and articles). Submit text and immediately
    receive a TaskId, then poll the task to retrieve status and the output audio
    URI(s); supports an optional callback URL.
common:
- type: DomainSecurity
  url: security/unrealspeech-domain-security.yml
- type: Authentication
  url: authentication/unrealspeech-authentication.yml
- type: GitHubOrganization
  url: https://github.com/unrealspeech
- type: LinkedIn
  url: https://www.linkedin.com/company/unrealspeech
- type: Website
  url: https://unrealspeech.com
- type: Documentation
  url: https://docs.unrealspeech.com
- type: Plans
  url: plans/unrealspeech-plans-pricing.yml
- type: RateLimits
  url: rate-limits/unrealspeech-rate-limits.yml
- type: FinOps
  url: finops/unrealspeech-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com