GET

/v1/schemas/openrouter/audio/audio%2Fspeech

Accept:

kind inputactivity audiohash 51eb375f…extracted Jul 26, 2026version currentsource upstream spec ↗

Request body

6 properties · 3 required · 1 $defs

property	type	description	constraints
input*	string	Text to synthesize
model*	string	TTS model identifier
voice*	string	Voice identifier (provider-specific).
provider	object	Provider-specific passthrough configuration
response_format	enum	Audio output format	mp3 \| pcm · default: "pcm"
speed	number	Playback speed multiplier. Only used by models that support it (e.g. OpenAI TTS). Ignored by other providers.	format: double

Validate a payload

before you spend tokens

shell

$ curl -X POST https://modelschemas.com/v1/validate \
    -d '{"provider":"openrouter","endpointId":"audio/speech","payload":{…}}'
→ {"valid": false, "errors": [{"path": "#", "keyword": "required", …}]}