x402 census · list-smith-production.up.railway.app · 87b6981d0974 · JSON
POST /v1/fix
method-gated
Repair one x402 route's Bazaar discovery metadata in one call. Send a resource URL and one real sample output; get the defect report plus a complete discovery package — full output schema inferred from the sample, a sub-500-char description with a use-when sentence, OpenAPI and well-known snippets, paste-in instructions — that ships only after passing both x402 SDK validators. Use this when your …
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 | http://list-smith-production.up.railway.app/v1/fix |
| Method | POST |
| Price | $0.50 USDC = 500000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0x097f9685D1e0752bF8B02d61E5Ce9be7eA0FBA7F |
| Seller | list-smith-production.up.railway.app |
| Catalogs | payai (row updated 2026-10-23) |
| Listed since (lower bound) | 2026-10-23 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-10-23 |
| CDP quality counters | not in the CDP catalog |
| Category (keyword rule) | directory/listing |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | list-smith · x402, bazaar, discovery, validation, schema |
Unpaid probe (census of 2026-10-25)
| Field | Value |
|---|---|
| Probed at | 2026-10-25T21:15:46.174Z |
| 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 / railway-hikari / none |
| Latency | 245 ms |
| Error | none |
| Redirected to | https://list-smith-production.up.railway.app/v1/fix |
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 |
|---|---|
| Settlement history | unresolved: payTo not seen in the payer forensics (180 wallets' outbound history) or the Blockscout sample |
Declared input and output (extensions.bazaar)
{
"input": {
"body": {
"name": "Target Thing",
"category": "data",
"resource_url": "https://target.example.com/v1/thing",
"sample_output": {
"score": 12,
"verdict": "OK"
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example_truncated": true,
"chars": 4721
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'http://list-smith-production.up.railway.app/v1/fix' -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/87b6981d0974/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"87b6981d0974"} 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: PayAI listing status · this record as JSON · all resources on list-smith-production.up.railway.app.