Caution: delivery not yet confirmed
Trust assessment for this x402 endpoint, updated every monitoring cycle. All of this seller's endpoints · Run this endpoint? Get it tested
https://x402-echo-service.onrender.com/echo
- Score
- 59 of 100
- Uptime, 7 days
- 100%
- Median response
- 564 ms
- Test payments
- Not yet paid-tested: in the test queue (C until then)
- Payout-wallet incidents
- 0
- Current price
- 0.001 USDC
- Browser agents
- Can't pay it yet: CORS headers missing (server-side agents are fine)
- x402 version
- v2
For the seller: make it payable from browser agents
- The 402 response has no Access-Control-Allow-Origin header, so a browser can't read the price quote. Fix: send Access-Control-Allow-Origin: * on 402 responses.
- The CORS preflight (OPTIONS) is refused with HTTP 405, so a browser can't send the paid retry. Fix: answer OPTIONS with 204 and the CORS headers.
Checked 2026-11-08. This doesn't affect the grade.
Based on 205 checks over the last 7 days. How scores are made
Run this endpoint? Get it tested
Standard x402 clients can't pay your quote: its EVM quote has no token domain (extra.name and extra.version). Our paid test couldn't create a payment (no money taken), and buyers' agents on the official x402 client fail the same way, so it's D.
- Add the token's EIP-712 name and version as accepts[].extra (USDC on Base: name "USD Coin", version "2") (see the x402 spec).
- Then Verify your endpoint (our automatic paid tests are paused for now, so you can fund one test at your own price and our tester pays it back to your payout wallet).
Seller guide: payout wallets, known-answer tests and more. Changed your paycheck.json? Check my setup.
Recent paid tests
No paid test has confirmed delivery yet.
| Time (UTC) | Result | Details | Money taken | Counts? | Receipt |
|---|---|---|---|---|---|
| 2026-10-25 14:17:10 | Its quote can't be paid by standard x402 clients | standard x402 clients can't pay this quote: its EVM quote has no token domain (extra.name and extra.version). Fix: add the token's EIP-712 name and version as accepts[].extra (USDC on Base: name "USD Coin", version "2"). No payment was made [client said: Failed to create payment payload: EIP-712 dom | No | Yes (D) | — |
| 2026-10-25 06:38:19 | Its quote can't be paid by standard x402 clients | standard x402 clients can't pay this quote: its EVM quote has no token domain (extra.name and extra.version). Fix: add the token's EIP-712 name and version as accepts[].extra (USDC on Base: name "USD Coin", version "2"). No payment was made [client said: Failed to create payment payload: EIP-712 dom | No | Yes (D) | — |
| 2026-10-24 22:28:21 | Its quote can't be paid by standard x402 clients | standard x402 clients can't pay this quote: its EVM quote has no token domain (extra.name and extra.version). Fix: add the token's EIP-712 name and version as accepts[].extra (USDC on Base: name "USD Coin", version "2"). No payment was made [client said: Failed to create payment payload: EIP-712 dom | No | Yes (D) | — |
| 2026-10-24 16:07:59 | Its quote can't be paid by standard x402 clients | standard x402 clients can't pay this quote: its EVM quote has no token domain (extra.name and extra.version). Fix: add the token's EIP-712 name and version as accepts[].extra (USDC on Base: name "USD Coin", version "2"). No payment was made [client said: Failed to create payment payload: EIP-712 dom | No | Yes (D) | — |
| 2026-10-20 16:02:47 | Its quote can't be paid by standard x402 clients | standard x402 clients can't pay this quote: its EVM quote has no token domain (extra.name and extra.version). Fix: add the token's EIP-712 name and version as accepts[].extra (USDC on Base: name "USD Coin", version "2"). No payment was made [client said: Failed to create payment payload: EIP-712 dom | No | Yes (D) | — |
Each paid test sends your listing's own example input (or your declared test request). Fixed something? Use the Get it tested box above.
Paid tests since Nov 7, 2026 come with a signed receipt: the exact payment terms and response (as hashes), amount, result and time, signed with our published key. How to check a receipt · All receipts for this endpoint (JSON)
Recent failed checks
The free checks we run every 30 minutes: uptime and a valid payment quote. Paid tests are in the section above.
Every check in the last 7 days passed.
Think this grade is wrong? Dispute it on GitHub. The form is pre-filled with this endpoint; a bot replies with its current score and queues a paid re-test.
We check every endpoint every 30 minutes from Render (US East), user agent lumiere-paycheck-prober/1.0 (+https://lumierepaycheck.org). Operators can allowlist it. Raw data: /v1/failures
Real usage
Payments that actually settled into this endpoint's payout wallet over the last 30 days.
Settled volume
$0.02
Payments
17
Distinct buyers
11
Typical payment
$0.00
Largest payment
$0.00
Last 7 days
▼ 50%
vs the week before
Settled by 0x42dd…4b00 (18%), 0x59b7…e704 (18%), 0x97ac…a016 (18%) · first seen 2026-09-24.
This wallet receives payments for 14 monitored endpoints, so the totals cover all of them, not just this one.
Counted from public USDC payments on Base and Solana submitted by recognized x402 facilitators, the services that settle x402 payments. It's a floor: payments on other networks, or before our index started, aren't counted. Daily data: /v1/usage?url=…
Payout-wallet changes
No payout-wallet changes in the last 7 days.
Every change is checked against the seller's own declaration, the seller's earlier wallets, and direct transfers between the old and new wallet on Base. Confirmed rotations don't affect the grade; a change nobody can confirm is "avoid" for 24 hours, then "caution". Run this endpoint? Publish your wallets at https://x402-echo-service.onrender.com/.well-known/paycheck.json as {"payTo": ["0x…"]} so future rotations are recognized instantly. Raw data: /v1/wallet-changes?url=…
Buyer reports
No buyer reports in the last 7 days.
Agents that pay through Lumière PayCheck report whether the response was usable, one vote per buyer. Reports don't change the grade by themselves: problem reports from several buyers trigger our own paid re-test, and only that can change the score.
Run this endpoint?
Show buyers and their agents that your endpoint is monitored. The badge updates on its own.