How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

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 (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.

Respeecher Space Real-Time TTS API is one of 17 APIs that Respeecher publishes on the APIs.io network, described by an AsyncAPI event-driven specification.

Tagged areas include Real-Time, Streaming, WebSocket, and Text-to-Speech. The published artifact set on APIs.io includes API documentation, an API reference, and an AsyncAPI specification.

This event API exposes 2 operations across 1 channel, and defines 2 schemas. It is described by AsyncAPI 2.6.0, at version 1.0.0.

The API connects through 2 servers: api.respeecher.com/v1/public/tts/en-rt (wss), api.respeecher.com/v1/public/tts/ua-rt (wss).

2 operations 1 channels 2 schemas

Metadata

The identity and technical contract details declared by the specification.

Specification
AsyncAPI 2.6.0
API Version
1.0.0
Base URL
https://api.respeecher.com/v1/public/tts/en-rt
Resource Areas
1

Channels & Operations 2

Across 1 channel, the API surfaces 2 operations. Each is listed below with its action, channel, parameters, and response codes.

Channels 2
SUB
/tts/websocket
Server streams synthesized audio back to the client.
receiveAudioFrame body
PUB
/tts/websocket
Client sends text to synthesize on this connection.
sendGenerationRequest body

Messages & Schemas 2

The contract defines 2 schemas that model the data carried by its messages. Each schema is shown below with its type and property counts.

GenerationRequest
message
AudioFrame
message

Specification

The full machine-readable AsyncAPI contract behind this narrative.

Source

respeecher-asyncapi.yml Raw ↑

Other APIs Respeecher publishes across the network.

Respeecher accents API
Respeecher auth API
Respeecher calibration API
Respeecher credits API
Respeecher folders API
Respeecher healtz API
Respeecher models API
Respeecher narration-styles API
Respeecher notes API
Respeecher orders API
Respeecher projects API
Respeecher recordings API
Where this information came from

This is an independent, third-party profile of Respeecher Space Real-Time TTS API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.