
X402 Payment
Use `caw fetch` to call x402-enabled endpoints on Base mainnet.
CategoryPayments
ChainsBASE_ETHBASE_SEPOLIA
C
Cobo· Author
151 views·9 uses
Overview
Use caw fetch to call x402-enabled endpoints on Base mainnet.
Facts
•note: confirm provider supports Base Sepolia before testing
Policy Controls
•Daily caps must be tight: Small payments accumulate rapidly; set caps to match expected usage.
•Validate payment amount: Use
--max-amount to reject requests exceeding your per-call limit.•Not applicable for: bulk or batch off-chain payments — per-API-call micropayments only
•Testnet: No real value. Get Base Sepolia USDC from faucets; confirm provider supports Base Sepolia before testing.
•Partial reference: use web search for unlisted tokens, contracts, parameters, or up-to-date addresses
References
•Docs:
https://docs.x402.org/llms.txt — HTTP-native micropayment protocol, per-request USDC payments on Base, facilitator flow.