Services / API · Registry
x402 Doctor
GET https://x402-doctor.fizzl.eu/api/v1/preflight
Listed in a public agent registry. The name is the registry's label, not ours. Not reviewed by a person. See all 20 endpoints from fizzl.eu.
Checked daily. Daily: 5 to 99 payers, and every new service until it has been probed 3 times.
In the capability tree: Payments and money / Payment gateways (primary); Identity, security and compliance / Security. Placed by a small AI model choosing from the tree's leaves (placement-ai/1, tree/2) on 2026-10-17. Wrong place? Tell us.
In the directory: meets our listing criteria (listing-criteria/1): ✓ says what it does; ✓ its latest check passed; ✓ at least 5 payers in 30 days (registry figure).
Recent probes
| When | Result | Networks offered | Time to headers |
|---|---|---|---|
cloudflare:MIA |
Live, valid x402 payment request HTTP 402 | eip155:8453solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpxrpl:0algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= | 608 ms |
What this evidence does not show
- A passing probe means the endpoint answered an unpaid request with a valid x402 payment challenge on a mainnet network. It does not show that a paid call succeeds or returns useful results.
- Payer and call counts are the registry's own figures, not our measurements.
- The registry's description is not republished.
- Limited evidence: monitored for under 1 day (less than 30).
Operate this service and want it reviewed, corrected or removed? Email hello@agentservicedirectory.com or use the opt-out page.
Machine-readable: /api/v1/services/cand_d5639bb47ed7d200