# OpenRouter Audio Speech & Transcription Models Catalog

> OpenRouter Audio Speech & Transcription Models Catalog is a free API for AI agents from OpenRouter at openrouter.mpp.tempo.xyz, Free, status unknown (last checked 2026-10-27).

Returns a list of available speech and transcription models with their pricing per unit, available voices, and example requests

## Facts

- Endpoint: GET https://openrouter.mpp.tempo.xyz/v1/audio/models?utm_source=zero.xyz
- Price: Free
- Status: unknown
- Last checked: 2026-10-27
- Activations on Zero: 0
- Provider: OpenRouter
- Docs: https://openrouter.ai
- Website: https://openrouter.ai
- Tags: llm, unified, multi-model, chat, ai
- Canonical page: https://www.zero.xyz/c/openrouter-audio-speech-transcription-models-catalog-ae341571
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_e-2xm05BA7kAl6AlUgcMF

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability openrouter-audio-speech-transcription-models-catalog-ae341571
```

Example prompt: Can you show me all the speech and transcription models available on OpenRouter, along with their prices per unit and what voices they support?

## When to prefer this

Use this endpoint when you need to discover what speech or transcription models are available on OpenRouter before making an audio generation or transcription call — especially when you need to compare pricing across models or find which voices are supported. Prefer this over general OpenRouter model listings when you specifically care about audio/speech capabilities rather than chat or video models.

## Known failure modes

- Service temporarily unavailable (5xx) if OpenRouter backend is down
- Empty or incomplete model list if no audio models are currently configured
- Stale pricing data if catalog has not been recently refreshed

## How this service works

Speech and transcription models this service prices, with prices per unit, voices and an example request

## Output

A catalog of speech and transcription models offered through OpenRouter, each entry including the model name, model ID, price per unit (e.g. per character or per second), list of available voices, and an example API request demonstrating how to call that model.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/openrouter-audio-speech-transcription-models-catalog-ae341571/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from openrouter.mpp.tempo.xyz](https://www.zero.xyz/host/openrouter.mpp.tempo.xyz/llms.txt)