# Services from paulgraham.persona.energy on Zero

> paulgraham.persona.energy serves 2 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/paulgraham.persona.energy
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/paulgraham.persona.energy/health.json

## Services

- [Paul Graham Persona Corpus Retrieval](https://www.zero.xyz/c/paul-graham-persona-corpus-retrieval-4c70d50a/llms.txt): $0.01/call via x402. Semantically searches Paul Graham's source corpus (essays, talks, interviews, X posts) and returns grounded evidence packets with citations
- [Paul Graham AI Persona Chat](https://www.zero.xyz/c/paul-graham-ai-persona-chat-f4f90e30/llms.txt): $0.25/call via x402. Chat with a source-grounded AI persona of Paul Graham, receiving answers in his voice with citations from his essays, talks, interviews, and posts

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)