x402 census · webtools402.176-109-107-191.sslip.io · 7c0e70e26a34 · JSON
POST /crypto/verify
method-gated
Verify an EIP-191 personal_sign or EIP-712 typed-data signature and recover the signer address from public inputs (message + signature). Verification/recovery only — never signs.
Verdict: not verified by an unpaid GET. 405/400: the 402 sits behind the declared method. This says nothing about whether the route works when called as declared.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://webtools402.176-109-107-191.sslip.io/crypto/verify |
| Method | POST |
| Price | $0.003 USDC = 3000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493 |
| Seller | webtools402.176-109-107-191.sslip.io |
| Catalogs | cdp (row updated 2026-10-25) |
| Listed since (lower bound) | 2026-10-25 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-10-25 |
| CDP quality counters | 7 calls and 5 unique payers in 30 days, last call 2026-10-25 (catalog-reported, not verified on chain) |
| Category (keyword rule) | crypto-data |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | crypto-verify · crypto, signature, eip712, eip191, verify |
Unpaid probe (census of 2026-10-22)
| Field | Value |
|---|---|
| Probed at | 2026-10-22T00:28:34.315Z |
| HEAD | 405 |
| GET | 405 |
| Verdict | method-gated 405/400: the 402 sits behind the declared method |
| 402 carried in | n/a |
| x402Version in the 402 | n/a |
| accepts[0] | none |
| Live amount equals catalog price | not comparable |
| Live payTo equals catalog payTo | not comparable |
| extensions.bazaar in the 402 | no |
| PAYMENT-REQUIRED header | no |
| WWW-Authenticate offer | none |
| Content type / server / CORS | application/json / uvicorn / none |
| Latency | 622 ms |
| Error | none |
No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Distinct payers | 45 |
| Payments | 314 |
| USDC volume | $2.00 |
| Median payment | $0.003 |
| First / last payment | 2026-07-07 / 2026-09-30 |
| Sampler-shaped share of payments | 98.4% |
| Payers that are not samplers | 1 |
| Source | forensics-2026-09-30 |
| Address | 0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493 |
Declared input and output (extensions.bazaar)
{
"input": {
"body": {
"expected_signer": "0x19E7E376E7C213B7E7e7e46cc70A5dD086DAff2A",
"message": "Hello, Ethereum!",
"scheme": "eip191",
"signature": "0xb44193cab85bbebd5fd04528a1b54c684418e8c025602174fede446dec814eac0f05db58a6b7b953c1806cecba389686cdebefdfa701c29014b0c486fc5550301c"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"type": "json",
"example": {
"matches": true,
"scheme": "eip191",
"signer": "0x52908400098527886E0F7030069857D2E4169EE7"
}
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://webtools402.176-109-107-191.sslip.io/crypto/verify' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'
The catalog declares POST. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.
Paid checks (x402, USDC on Base)
GET https://bazaar.agentexchange.work/r/7c0e70e26a34/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"7c0e70e26a34"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.
Catalog references: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on webtools402.176-109-107-191.sslip.io.