x402 census · agent-search.centorprat.workers.dev · c9aa90eb0335 · JSON
POST /watch
live
Monitor a topic: call with a query (web or news) and a watchId; each call returns only the results you have not seen before (newResults) plus the full list, so polling agents stop re-reading old links and spending tokens on them. No setup: the first call creates the watch. Hashed URLs only, kept 60 days; the query text is never stored.
Verdict: live. The unpaid GET reached a valid 402. The live amount equals the catalog price.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://agent-search.centorprat.workers.dev/watch |
| Method | POST |
| Price | $0.006 USDC = 6000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base); also accepts eip155:137, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| payTo | 0x8d38D6026cf3A9805DE9c5F0611ceE95B532B120 |
| Seller | agent-search.centorprat.workers.dev |
| 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 | 2 calls and 1 unique payers in 30 days, last call 2026-10-25 (catalog-reported, not verified on chain) |
| Category (keyword rule) | web-search |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | Web + News Search Monitor · monitoring, alerts, news, search, web-search |
Unpaid probe (census of 2026-10-25)
| Field | Value |
|---|---|
| Probed at | 2026-10-25T21:14:15.693Z |
| HEAD | 402 |
| GET | 402 |
| Verdict | live live: valid 402 to an unpaid GET |
| 402 carried in | header+body |
| x402Version in the 402 | 2 |
| accepts[0] | {"scheme":"exact","network":"eip155:8453","amount":"6000","payTo":"0x8d38D6026cf3A9805DE9c5F0611ceE95B532B120","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}} |
| Live amount equals catalog price | yes |
| Live payTo equals catalog payTo | yes |
| extensions.bazaar in the 402 | yes |
| PAYMENT-REQUIRED header | yes |
| WWW-Authenticate offer | none |
| Content type / server / CORS | application/json / cloudflare / * |
| Latency | 301 ms |
| Error | Payment required |
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": {
"kind": "news",
"query": "x402 payments news"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"type": "json",
"example": {
"allResults": [],
"firstRun": true,
"newCount": 10,
"newResults": [],
"query": "...",
"watchId": "abc123def456"
}
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://agent-search.centorprat.workers.dev/watch' -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/c9aa90eb0335/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"c9aa90eb0335"} 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 agent-search.centorprat.workers.dev.