# Services from paperknife-api.davidgoparkid369.chatgpt.site on Zero

> paperknife-api.davidgoparkid369.chatgpt.site 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/paperknife-api.davidgoparkid369.chatgpt.site
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/paperknife-api.davidgoparkid369.chatgpt.site/health.json

## Services

- [Paperknife PDF Extraction API](https://www.zero.xyz/c/paperknife-pdf-extraction-api-846076d4/llms.txt): $0.003/call via x402. Extracts clean, structured text from a publicly accessible PDF URL and returns it as JSON with per-page breakdown
- [Paperknife — PDF to Clean JSON for Agents](https://www.zero.xyz/c/paperknife-pdf-to-clean-json-for-agents-3e759aad/llms.txt): $0.003/call via x402. Extracts text content from a PDF URL and returns it as structured JSON, paid per-call via x402 with no account or API key required.

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)