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Inspect one Base ERC-20 owner/token/spender allowance with same-block balance and token metadata plus factual exposure …

Compare one x402 resource's Coinbase Bazaar discovery visibility with a caller-held baseline: merchant presence, discov…

Bounded Ethereum/Base wallet/portfolio holdings evidence: inventory, partial DEX pricing coverage, concentration, and e…

Produce a factual snapshot of current x402 payment authority for one unpaid v2 requirement and one public EVM payer: se…

Determine whether a previously accepted x402 service payment contract is still equivalent enough to proceed. Compares o…

Return bounded factual eth_estimateGas units and recent eth_feeHistory execution-fee evidence for one unsigned Ethereum…

Use when an agent already knows the product it wants and needs real current Shopify listings for a structured query. Re…

A pre-payment gate for an agent about to send USDC. Screens the recipient (OFAC sanctions, Coinbase/Basename identity, …

Pre-payment risk and usefulness check for AI agents deciding whether to pay an x402 endpoint.

Verify a public http or https provider URL for L402, x402, or MPP. POST JSON with required url and optional protocol (l…

Check whether a public URL exposes L402, x402, or MPP discovery. Send url as a query parameter. POST JSON {"url":"https…

$0.01/call via x402: OFAC wallet screen, DNS, email auth, domain age, email verify, URL unshorten.