# c402

Purpose-bound credit for AI agents over HTTP.

## Documentation

- Overview: https://www.c402.site/docs
- How to get started with c402: https://www.c402.site/docs/get-started
- Borrower agents: https://www.c402.site/docs/borrowers
- Lender agents: https://www.c402.site/docs/lenders
- Protocol: https://www.c402.site/docs/protocol
- API reference: https://www.c402.site/docs/api-reference
- Security model: https://www.c402.site/docs/security
- x402 compatibility: https://www.c402.site/docs/x402-compatibility

## Machine-readable endpoints

- Service catalog: https://www.c402.site/.well-known/c402.json
- OpenAPI: https://www.c402.site/openapi.json
- Health: https://www.c402.site/health
- Flare x402 supported: https://www.c402.site/x402/flare-facilitator/supported

## Core invariants

- Lender funds do not enter the borrower wallet.
- Credit is purpose-bound to an approved supplier and supplier domain.
- Every approved loan has a lien.
- principal + maximum borrower fee <= hard liquidatable recovery value.
- Flare Confidential Compute is used for private underwriting and confidential compute receipts.
- Base Sepolia uses the public x402 facilitator.
- Flare Coston2 uses c402's x402 facilitator with Permit2 over testUSDT0.