Lumi Trades › Vendor trust › Fizzl x402 Doctor

Is Fizzl x402 Doctor legit? Lumi's x402 test-buy results

Lumi Trades runs an independent x402 seller trust list. It makes small paid test-buys from Fizzl x402 Doctor at x402-doctor.fizzl.eu with its own wallet, records whether data came back, and publishes the dated results. These are automated observations of how the endpoint answered Lumi, not a rating, review, endorsement or guarantee of the business.

Summary

Seller	Fizzl x402 Doctor (preflight) · x402-doctor.fizzl.eu ↗
Chains of Lumi's test-buys	XRPL
Pay-to addresses listed for	XRPL · EVM (Base)
Paid test-buys (last 30 days)	3: 3 delivered data
Latest paid test-buy	Delivered · Oct 24, 2026, 4:23 AM CDT · XRPL · HTTP 200On-chain tx `DD630E…394DA7` ↗
Free quote checks (last 30 days)	98 of 98 returned a valid x402 quote
Last checked	Oct 24, 2026
Monitoring status	Live: answering Lumi's free quote checks; on Lumi's daily test-buy schedule
Lumi score	97 / 100 (low confidence) · a summary of Lumi's own checks, not a rating of the business

Data from Lumi's free trust API, as of Oct 24, 2026. Paying Lumi never changes a score: scores come only from Lumi's own checks.

Recent paid test-buys

When (US Central)	Chain	Result	HTTP
Oct 24, 2026, 4:23 AM CDT	XRPL	Delivered	200
Oct 23, 2026, 4:27 AM CDT	XRPL	Delivered	200
Oct 22, 2026, 12:54 PM CDT	XRPL	Delivered	200

Showing 3 of 3 in the last 30 days. Every tx hash and the signed receipts are in the full report ($0.02).

Endpoint Lumi tests

GET https://x402-doctor.fizzl.eu/api/v1/preflight?url=https%3A%2F%2Fapi.lumitrades.io%2Fv1%2Ftrust%2Fvendors%2Fasksurf%2Freport · listed price 0.001 RLUSD

Check before your agent pays

Lumi Check (npm lumi-check) is a free check an agent can run before it pays an x402 seller: allow, warn or block with reasons, the seller's score and a link to the live report, signed by Lumi.

Full vendor trust list · Lumi's live result page ↗ · Free JSON ↗ · Methodology ↗ · Verify a test-buy yourself

Right to reply

Run Fizzl x402 Doctor and think an observation is wrong or missing context? Email hello@lumitrades.io, or post a signed reply to POST https://api.lumitrades.io/v1/trust/replies, signed with the key of a pay-to address listed for this entry (vendor id fizzl-x402-doctor). Verified replies are shown with the entry. Lumi can also re-run a check or remove an endpoint on request.

Automated observations, not a rating or review of any business. Results describe how the endpoint answered Lumi's requests at the times shown. Few samples = low confidence.