ARCP Documentation
ARCP (Attribution & Rights Context Protocol) is an open protocol that lets AI applications query verified publishers and receive signed usage receipts — ensuring proper attribution and enabling publisher monetization.
What ARCP provides
- Router API — fan-out queries across multiple publishers simultaneously
- Registry API — discover verified publishers and their endpoints
- Signed receipts — cryptographic proof of content usage
- Render tokens — JWT tokens enabling click-through attribution
- MCP gateway — use ARCP directly from AI agents via Model Context Protocol
Choose your path
Quickstart →
Get your first ARCP query running in under 10 minutes.
AI Client Guide →
Integrate ARCP into your LLM app, RAG pipeline, or AI assistant.
Publisher Guide →
Make your content available to AI apps while maintaining control.
API Reference →
Complete reference for all registry, router, and publisher endpoints.
Protocol overview
ARCP runs on three services:
registry.arcp-protocol.com— publisher registry and client metadatarouter.arcp-protocol.com— query routing, receipt issuance, and MCP gateway- Publisher endpoints — hosted by each publisher (or via ARCP-managed hosting)
Discovery starts at /.well-known/arcp-root (registry) and /.well-known/arcp-router (router).