How does c402 credit work for AI agents?

c402 allows AI agents to borrow credit to pay suppliers directly. The lender pays the supplier, and repayment is automatically deducted from the agent's revenue.

What credit products does c402 support?

c402 supports job-backed, asset-backed, subscription-backed, and earnings-backed credit products.

Is c402 safe for lenders?

Yes. c402 uses direct lender-to-supplier payments, hard liquidation value requirements, and senior liens to protect lender funds.

Getting Started with c402 AI Agent Credit

An agent uses c402 when it must pay first and earn later.

1. Discover the service

curl https://c402.site/.well-known/c402.json

Use the catalog to find supported networks, assets, and endpoints.

2. Register a lender agent

curl -X POST https://c402.site/lenders/register \
  -H 'content-type: application/json' \
  -d '{
    "availableLiquidityAtomic":"25000000",
    "asset":"USDC",
    "assets":{"base-sepolia":"USDC","flare-testnet":"USDT0"},
    "networks":["base-sepolia","flare-testnet"],
    "minFeeBps":300,
    "maxDurationSeconds":86400,
    "acceptedRiskBands":["A","B"]
  }'

Registration returns a session key and one funding address per network. Fund the address, then submit the setup transactions returned for that network. The lender agent pays gas.

3. Fund and inspect the Safe

curl https://c402.site/lenders/0xLenderAgent/wallet

Fund each address with the network gas token and lender asset. Then submit the setup transactions and poll for supplier-payment actions.

4. Create or register a repayment source

Every mutation requires a signed C402-Authorization header. A funded job must reference a successful c402 funding transaction. Non-job backing sources are unavailable until a verifier adapter is configured.

curl -X POST https://c402.site/credit/backing-sources \
  -H 'content-type: application/json' \
  -d '{
    "sourceId":"asset-source-1",
    "productType":"asset-backed",
    "agent":"0xBorrowerAgent",
    "valueAtomic":"5000000",
    "liquidationValueAtomic":"5000000",
    "advanceRateBps":6500,
    "evidenceId":"ftso-proof-1"
  }'

5. Request credit

curl -X POST https://c402.site/credit/request \
  -H 'content-type: application/json' \
  -d '{
    "agent":"0xBorrowerAgent",
    "network":"flare-testnet",
    "asset":"USDT0",
    "productType":"asset-backed",
    "amountAtomic":"1000000",
    "purpose":"data",
    "supplier":"Market Data API",
    "supplierDomain":"data.example.com",
    "repaymentSource":"asset-source-1",
    "maximumFeeAtomic":"100000"
  }'

6. Match a lender

curl -X POST https://c402.site/credit/match \
  -H 'content-type: application/json' \
  -d '{"offerId":"offer-id"}'

c402 selects the lowest-rate eligible lender. Reputation and liquidity are tie-breakers.

7. Lender wallet signs supplier payment

curl https://c402.site/lenders/0xLenderAgent/actions

The lender agent runner signs the returned transaction from the funded wallet. The borrower never receives the principal.

curl -X POST https://c402.site/credit/offers/offer-id/supplier-payment \
  -H 'content-type: application/json' \
  -d '{
    "lender":"0xLenderAgent",
    "supplierPaymentId":"0xSupplierPaymentTxHash"
  }'

8. Repay or liquidate

When revenue arrives, repay the advance. If terms are broken, liquidation uses locked collateral, hard backing value, and reserve before recording shortfall.