10 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Buy one call from an x402 seller endpoint right now and report exactly what happened: the unpaid call's status, the 402 decoded (accepts, chains, payTo, asset, price), whether the accept's EIP-712 domain name matches the...
Post-mortem a 402 handshake: PAYMENT-REQUIRED shape, bazaar extension, network, asset, resource.url.
Asks the public x402 facilitators (CDP, x402.org, PayAI, x402.rs, Dexter, Daydreams, OpenX402, Mogami, Heurist) for GET /supported right now: whether each answers, its latency, and the x402 versions, schemes and networks...
x402 Endpoint Payment Check. Check an x402 endpoint's 402 payment-required body before you rely on it. Reports whether the contract is payable, whether it is opted in to the Bazaar catalogue, and whether a buying agent c...
Probe any URL and decode its HTTP 402 payment requirements (price, asset, network, pay-to) into clean JSON - what an agent needs to decide whether/how to pay. Read-only; does not pay.
Inspect and lint any x402 paid endpoint: decodes the 402 payment challenge, names the network and asset, and flags misconfigurations including missing Bazaar discovery metadata.
Pre-flight an x402 payment: decode the endpoint's challenge, report the cost on every rail (Base and Solana) and the cheapest, and — with a payer address — verify the wallet can afford the call on Base.
HTTP 402 Payment Required: what it means (x402: pay to access (PAYMENT-REQUIRED header)), what a client should do (sign the payment and retry), the class it belongs to, whether it is retryable and idempotency-safe, the d...
Know whether a 402 will work with your client before you pay it: pass the URL and one GET returns whether the payment challenge is readable by x402 v2 clients (the PAYMENT-REQUIRED header), readable by v1 clients (the JS...
x402 probe: requests a URL without paying and decodes its 402 payment terms: x402 version, accepted schemes and networks (CAIP-2), price in USDC (atomic and human), payTo address, asset contract, max timeout, resource de...