# Services from heygen.mpp.tempo.xyz on Zero

> heygen.mpp.tempo.xyz serves 4 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/heygen.mpp.tempo.xyz
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/heygen.mpp.tempo.xyz/health.json

## Services

- [HeyGen Speech (via OpenRouter)](https://www.zero.xyz/c/heygen-speech-via-openrouter-af482786/llms.txt): price not listed via MPP. Converts text to speech audio bytes using HeyGen's TTS models, billed per character or audio unit via a one-shot USDC payment.
- [HeyGen Video Generation via OpenRouter](https://www.zero.xyz/c/heygen-video-generation-via-openrouter-90c62f23/llms.txt): price not listed via MPP. Submits an AI video generation job using HeyGen models via OpenRouter, charging a one-shot payment and returning a job access token for polling results
- [HeyGen Audio Models Listing](https://www.zero.xyz/c/heygen-audio-models-listing-a2e9fe1b/llms.txt): free. Returns the list of speech and transcription models available through HeyGen via OpenRouter, including prices per unit, available voices, and example requests
- [HeyGen Video Models Catalog](https://www.zero.xyz/c/heygen-video-models-catalog-2e8cd2de/llms.txt): free. Lists available HeyGen video generation models along with their pricing information via the OpenRouter proxy

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

- [Zero catalog index](https://www.zero.xyz/llms.txt)