# Microsoft AI Speech & Transcription Models Catalog

> Microsoft AI Speech & Transcription Models Catalog is a free API for AI agents from Microsoft AI at microsoft-ai.mpp.tempo.xyz, Free, status unknown (last checked 2026-10-29).

Returns the list of available speech and transcription models with their prices per unit, supported voices, and an example request payload

## Facts

- Endpoint: GET https://microsoft-ai.mpp.tempo.xyz/v1/audio/models?utm_source=zero.xyz
- Price: Free
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Provider: Microsoft AI
- Docs: https://openrouter.ai
- Website: https://openrouter.ai
- Tags: ai
- Canonical page: https://www.zero.xyz/c/microsoft-ai-speech-transcription-models-catalog-c199ce82
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_usgj5NsW_CXptoK7bVIv0

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 microsoft-ai-speech-transcription-models-catalog-c199ce82
```

Example prompt: What speech and transcription models are available through Microsoft AI on OpenRouter, and what are their prices and supported voices?

## When to prefer this

Use this endpoint when you need to discover which Microsoft AI speech or transcription models are currently available, compare their per-unit pricing, check which voices are offered, or obtain an example request before making a call to the Speech or Transcriptions endpoints. Prefer this over hardcoding model names or prices, since the catalog reflects live pricing.

## Known failure modes

- Service unavailable returns 5xx error
- Empty or malformed response if the catalog is temporarily down
- Stale pricing if the catalog is not refreshed in real time

## How this service works

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

## Output

A list of speech and transcription model objects, each containing the model name/ID, pricing per unit (e.g. per character or per second of audio), available voices, and a sample request body illustrating how to call that model.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/microsoft-ai-speech-transcription-models-catalog-c199ce82/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from microsoft-ai.mpp.tempo.xyz](https://www.zero.xyz/host/microsoft-ai.mpp.tempo.xyz/llms.txt)