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x402 Doctor

Is this x402 endpoint safe to pay? Call it before your AI agent pays an endpoint it has not used before. Returns a go / caution / no_go verdict, the recommended payment option (network and amount) and the reasons (payment would fail, over your budget, price above advertised, not HTTPS, unknown…

Visit x402-doctor.fizzl.eu

Hostx402-doctor.fizzl.eu
Price$0.001–$0.25 per call
NetworkBase
Paid endpoints listed6
Calls, last 30 days*35
Most unique payers on one endpoint (30 days)*5
Last paid call*2026-10-17
Tagsx402, payments, safety, pre-payment, developer-tools, agents, due-diligence, diagnostics

* From the public x402 Bazaar index (snapshot 2026-10-18T04:07Z); reported by the facilitator, not measured by us.

Endpoints

URLMethodPrice
https://x402-doctor.fizzl.eu/api/v1/preflight
Is this x402 endpoint safe to pay? Call it before your AI agent pays an endpoint it has not used before. Returns a go…		GET$0.001
https://x402-doctor.fizzl.eu/api/v1/preflight/deep
Should my agent pay this expensive x402 endpoint? Call it before a costly or repeated payment. Returns the go /…		GET$0.01
https://x402-doctor.fizzl.eu/api/v1/diagnose
Why is my x402 endpoint broken? Diagnose and debug an x402 payment endpoint (or MCP server) when payments fail: checks…		GET$0.01
https://x402-doctor.fizzl.eu/api/v1/fix
How do I fix my broken x402 endpoint? Diagnoses it, then returns per problem the concrete change as code for your…		GET$0.05
https://x402-doctor.fizzl.eu/api/v1/preflight/batch
Are these x402 endpoints safe to pay? Up to 10 endpoints in one call (?url=a&url=b): per endpoint go / caution /…		GET$0.005
https://x402-doctor.fizzl.eu/api/v1/delivery-check
Does this x402 endpoint really deliver? x402 Doctor buys it once with the example input its own listing declares (at…		GET$0.25

Source: x402 Bazaar discovery API (Coinbase CDP) · Licence: Public discovery metadata; descriptions by each provider. Listed in x402 pay-per-call APIs. We list tools; we do not test, rate or endorse them.

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