# Services from api.cheapestinference.com on Zero

> api.cheapestinference.com serves 5 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/api.cheapestinference.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.cheapestinference.com/health.json

## Services

- [CheapestInference Chat Completions](https://www.zero.xyz/c/cheapestinference-chat-completions-c7cd52fd/llms.txt): $10/call via x402. Run chat completions against 200+ open-source AI models via an OpenAI-compatible API at a flat per-call rate
- [CheapestInference Text Completions](https://www.zero.xyz/c/cheapestinference-text-completions-ba1fec4a/llms.txt): $10/call via x402. Generate text completions using 200+ open-source AI models via a flat-rate, OpenAI-compatible completions endpoint
- [CheapestInference Embeddings API](https://www.zero.xyz/c/cheapestinference-embeddings-api-ffb33b1b/llms.txt): $20/call via x402. Generates vector embeddings for text input using 200+ open-source AI models via an OpenAI-compatible API with flat-rate pricing
- [CheapestInference Anthropic Messages API](https://www.zero.xyz/c/cheapestinference-anthropic-messages-api-361fdb06/llms.txt): $10/call via x402. Send messages to Anthropic-compatible AI models via a flat-rate OpenAI-compatible API endpoint, paying per call rather than per token
- [CheapestInference List Available Models](https://www.zero.xyz/c/cheapestinference-list-available-models-4f9445d8/llms.txt): $10/call via x402. Returns the full list of 200+ open-source AI models available through the CheapestInference flat-rate API

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)