Respeecher

Respeecher is an AI voice company known for high-fidelity speech-to-speech (STS) voice conversion and text-to-speech (TTS) used across film, television, games, and advertising. It exposes two documented, self-service public APIs. The Voice Marketplace API (gateway.respeecher.com) provides voice discovery, speech-to-speech conversion orders, text-to-speech synthesis, calibration, recordings, projects/folders, credits, and statistics, secured with an API key. The newer Respeecher Space real-time TTS API (api.respeecher.com) streams lifelike audio in under 200ms via one-shot bytes, HTTP SSE, and a WebSocket channel, with English (en-rt) and Ukrainian (ua-rt) models, official Python and TypeScript SDKs, and LiveKit, Pipecat, Ultravox, and VAPI integrations. Bespoke, high-touch voice cloning for studios is delivered through the enterprise AI Voice Lab.

8 APIs 0 Features
Voice AIVoice CloningSpeech to SpeechText to SpeechVoice ConversionReal TimeMedia and Entertainment

APIs

Respeecher Voices API

List, search, favorite, and configure the marketplace catalog of AI voices (GET /api/v2/voices, /api/v2/voices/search, /api/v2/voices/settings) plus accent and narration-style s...

Respeecher Speech-to-Speech Conversion API

Create and retry speech-to-speech voice conversion jobs that transform an uploaded original recording into a target marketplace voice with accent and semitone pitch control (POS...

Respeecher Text-to-Speech API

Generate speech from text using 150+ narration styles on the Voice Marketplace (POST /api/v2/recordings/tts, GET /api/tts-voices). A dedicated Python client (github.com/respeech...

Respeecher Calibration API

Create, list, enable, and delete voice calibrations that determine the mean pitch of a source voice for better pitch matching during conversion (POST /api/calibration, POST /api...

Respeecher Recordings API

Upload, list, update, export, and delete original recordings and their conversions in WAV, OGG, MP3, and FLAC (GET/POST /api/recordings, /api/recordings/originals, /api/recordin...

Respeecher Projects and Folders API

Organize recordings and conversions into projects and folders, with pagination, filtering, ZIP export, and account/project/folder statistics (GET/POST /api/projects, /api/folder...

Respeecher Credits API

Check the account credit balance that meters marketplace text-to-speech and speech-to-speech usage (GET /api/credits). Credits map to TTS characters and STS minutes across the p...

Respeecher Space Real-Time TTS API

Low-latency real-time text-to-speech that begins streaming audio in under 200ms via three transports - one-shot bytes (POST /tts/bytes, up to ~5,000 characters), HTTP SSE chunks...

Pricing Plans

Respeecher Plans Pricing

6 plans

PLANS

Rate Limits

Respeecher Rate Limits

0 limits

RATE LIMITS

FinOps

Respeecher Finops

FINOPS

Event Specifications

Respeecher Space Real-Time TTS WebSocket API

AsyncAPI description of the Respeecher Space real-time text-to-speech WebSocket channel. A single persistent WebSocket connection carries multiple concurrent text-to-speech gene...

ASYNCAPI

Resources

🔗
DomainSecurity
DomainSecurity
🔗
LinkedIn
LinkedIn
🔗
Website
Website
🔗
Documentation
Documentation
🔗
Documentation
Documentation
📝
SignUp
SignUp
🔗
Plans
Plans
🔗
RateLimits
RateLimits
🔗
FinOps
FinOps
🔗
OpenAPI
OpenAPI
📰
Blog
Blog

Sources

Raw ↑ 
aid: respeecher
url: https://raw.githubusercontent.com/api-evangelist/respeecher/refs/heads/main/apis.yml
name: Respeecher
kind: company
description: Respeecher is an AI voice company known for high-fidelity speech-to-speech (STS) voice conversion and text-to-speech
  (TTS) used across film, television, games, and advertising. It exposes two documented, self-service public APIs. The Voice
  Marketplace API (gateway.respeecher.com) provides voice discovery, speech-to-speech conversion orders, text-to-speech synthesis,
  calibration, recordings, projects/folders, credits, and statistics, secured with an API key. The newer Respeecher Space
  real-time TTS API (api.respeecher.com) streams lifelike audio in under 200ms via one-shot bytes, HTTP SSE, and a WebSocket
  channel, with English (en-rt) and Ukrainian (ua-rt) models, official Python and TypeScript SDKs, and LiveKit, Pipecat, Ultravox,
  and VAPI integrations. Bespoke, high-touch voice cloning for studios is delivered through the enterprise AI Voice Lab.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Voice AI
- Voice Cloning
- Speech to Speech
- Text to Speech
- Voice Conversion
- Real Time
- Media and Entertainment
created: '2026-07-11'
modified: '2026-07-11'
specificationVersion: '0.19'
apis:
- aid: respeecher:respeecher-voices-api
  name: Respeecher Voices API
  tags:
  - Voices
  - Marketplace
  - Discovery
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.respeecher.com/endpoints-reference/
  baseURL: https://gateway.respeecher.com
  properties:
  - url: https://docs.respeecher.com/
    type: Documentation
  - url: https://docs.respeecher.com/endpoints-reference/
    type: APIReference
  - url: openapi/respeecher-openapi.yml
    type: OpenAPI
  description: List, search, favorite, and configure the marketplace catalog of AI voices (GET /api/v2/voices, /api/v2/voices/search,
    /api/v2/voices/settings) plus accent and narration-style samples used to drive speech-to-speech and text-to-speech conversions.
    Voices are filterable by gender, age, pitch, nationality, species, and visibility (public, paid, private, kids).
- aid: respeecher:respeecher-speech-to-speech-api
  name: Respeecher Speech-to-Speech Conversion API
  tags:
  - Speech to Speech
  - Voice Conversion
  - Orders
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.respeecher.com/endpoints-reference/
  baseURL: https://gateway.respeecher.com
  properties:
  - url: https://www.respeecher.com/speech-to-speech
    type: Documentation
  - url: https://docs.respeecher.com/endpoints-reference/
    type: APIReference
  - url: openapi/respeecher-openapi.yml
    type: OpenAPI
  description: Create and retry speech-to-speech voice conversion jobs that transform an uploaded original recording into
    a target marketplace voice with accent and semitone pitch control (POST /api/v2/orders, /api/recordings/conversion-order,
    POST /api/v2/orders/retry/{recording_id}). Convert one performer's voice into another for dubbing, localization, and character
    work.
- aid: respeecher:respeecher-text-to-speech-api
  name: Respeecher Text-to-Speech API
  tags:
  - Text to Speech
  - Synthesis
  - Narration
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.respeecher.com/api
  baseURL: https://gateway.respeecher.com
  properties:
  - url: https://www.respeecher.com/api
    type: Documentation
  - url: https://docs.respeecher.com/endpoints-reference/
    type: APIReference
  - url: openapi/respeecher-openapi.yml
    type: OpenAPI
  description: Generate speech from text using 150+ narration styles on the Voice Marketplace (POST /api/v2/recordings/tts,
    GET /api/tts-voices). A dedicated Python client (github.com/respeecher/respeecher_tts) wraps this endpoint for non-realtime
    text-to-speech rendering.
- aid: respeecher:respeecher-calibration-api
  name: Respeecher Calibration API
  tags:
  - Calibration
  - Pitch
  - Voice Profile
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.respeecher.com/endpoints-reference/
  baseURL: https://gateway.respeecher.com
  properties:
  - url: https://docs.respeecher.com/endpoints-reference/
    type: APIReference
  - url: openapi/respeecher-openapi.yml
    type: OpenAPI
  description: Create, list, enable, and delete voice calibrations that determine the mean pitch of a source voice for better
    pitch matching during conversion (POST /api/calibration, POST /api/calibration/auto, PUT /api/calibration/{calibration_id}/enable).
- aid: respeecher:respeecher-recordings-api
  name: Respeecher Recordings API
  tags:
  - Recordings
  - Uploads
  - Audio
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.respeecher.com/endpoints-reference/
  baseURL: https://gateway.respeecher.com
  properties:
  - url: https://docs.respeecher.com/endpoints-reference/
    type: APIReference
  - url: openapi/respeecher-openapi.yml
    type: OpenAPI
  description: Upload, list, update, export, and delete original recordings and their conversions in WAV, OGG, MP3, and FLAC
    (GET/POST /api/recordings, /api/recordings/originals, /api/recordings/conversions, /api/recordings/export), with per-recording
    notes and metadata.
- aid: respeecher:respeecher-projects-folders-api
  name: Respeecher Projects and Folders API
  tags:
  - Projects
  - Folders
  - Organization
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.respeecher.com/endpoints-reference/
  baseURL: https://gateway.respeecher.com
  properties:
  - url: https://docs.respeecher.com/endpoints-reference/
    type: APIReference
  - url: openapi/respeecher-openapi.yml
    type: OpenAPI
  description: Organize recordings and conversions into projects and folders, with pagination, filtering, ZIP export, and
    account/project/folder statistics (GET/POST /api/projects, /api/folders, GET /api/projects/{project_id}/export, /api/stats).
- aid: respeecher:respeecher-credits-api
  name: Respeecher Credits API
  tags:
  - Credits
  - Billing
  - Usage
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.respeecher.com/endpoints-reference/
  baseURL: https://gateway.respeecher.com
  properties:
  - url: https://docs.respeecher.com/endpoints-reference/
    type: APIReference
  - url: openapi/respeecher-openapi.yml
    type: OpenAPI
  description: Check the account credit balance that meters marketplace text-to-speech and speech-to-speech usage (GET /api/credits).
    Credits map to TTS characters and STS minutes across the pay-as-you-go and subscription plans.
- aid: respeecher:respeecher-space-realtime-tts-api
  name: Respeecher Space Real-Time TTS API
  tags:
  - Real Time
  - Streaming
  - WebSocket
  - Text to Speech
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://space.respeecher.com/docs
  baseURL: https://api.respeecher.com/v1/public/tts/en-rt
  properties:
  - url: https://space.respeecher.com/docs/quickstart
    type: Documentation
  - url: https://space.respeecher.com/docs/api/tts/web-socket
    type: APIReference
  - url: asyncapi/respeecher-asyncapi.yml
    type: AsyncAPI
  - url: https://www.respeecher.com/real-time-tts-api
    type: SignUp
  description: Low-latency real-time text-to-speech that begins streaming audio in under 200ms via three transports - one-shot
    bytes (POST /tts/bytes, up to ~5,000 characters), HTTP SSE chunks (POST /tts/sse), and a bidirectional WebSocket channel
    (wss://api.respeecher.com/v1/public/tts/en-rt, GET /tts/websocket) that streams input text and output audio keyed by context_id.
    English (en-rt) and Ukrainian (ua-rt) models, X-API-Key auth, official Python and TypeScript SDKs, and LiveKit, Pipecat,
    Ultravox, and VAPI integrations.
common:
- type: DomainSecurity
  url: security/respeecher-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/respeecher
- type: Website
  url: https://www.respeecher.com
- type: Documentation
  url: https://docs.respeecher.com/
- type: Documentation
  url: https://space.respeecher.com/docs
- type: SignUp
  url: https://marketplace.respeecher.com/account
- type: Plans
  url: plans/respeecher-plans-pricing.yml
- type: RateLimits
  url: rate-limits/respeecher-rate-limits.yml
- type: FinOps
  url: finops/respeecher-finops.yml
- type: OpenAPI
  url: https://gateway.respeecher.com/api/openapi.json
- url: https://www.respeecher.com/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com