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

> openai.mpp.tempo.xyz serves 6 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/openai.mpp.tempo.xyz
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/openai.mpp.tempo.xyz/health.json

## Services

- [OpenAI Text-to-Speech (TTS)](https://www.zero.xyz/c/openai-speech-20f236c8/llms.txt): $0.02/call via MPP, rated 4.5/5 (10 reviews). Converts input text into spoken audio using OpenAI's TTS models and voices, returning an audio file in the specified format
- [OpenAI DALL-E Image Generations](https://www.zero.xyz/c/openai-generations-338dbe3b/llms.txt): $0.05/call via MPP. Generate original images from text prompts using OpenAI's DALL-E model
- [OpenAI Whisper Audio Transcriptions](https://www.zero.xyz/c/openai-transcriptions-71bd2c98/llms.txt): $0.01/call via MPP. Transcribes audio files into text using OpenAI's Whisper speech recognition model
- [OpenAI Chat Completions](https://www.zero.xyz/c/openai-completions-4a862a79/llms.txt): $0.005125/call (varies) via MPP. Sends a multi-turn conversation to OpenAI GPT-4o, GPT-4, o1, and other models and returns a text completion response
- [OpenAI Embeddings](https://www.zero.xyz/c/openai-embeddings-21fb8481/llms.txt): $0.0001/call via MPP. Converts text into high-dimensional vector embeddings for semantic search, clustering, and similarity tasks
- [OpenAI Responses API](https://www.zero.xyz/c/openai-responses-57dd30b3/llms.txt): $0.005125/call (varies) via MPP. Stateful multi-turn AI responses using OpenAI models (Codex, GPT-4o, etc.) with built-in tool use and conversation management

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)