x402 census · stumble.vimabrosta.com · c2bda453b47f · JSON
POST /v1/checks
live
Fetch a public URL once, right now, and evaluate a condition against it (keyword, CSS selector, JSON path, price threshold, content hash, or HTTP status). Returns matched:true/false with the extracted value and a short evidence excerpt. Synchronous; typical response under 3 seconds. $0.01 per check.
Verdict: live. The unpaid GET reached a valid 402 (confirmed by the re-probe of 2026-10-01).
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://stumble.vimabrosta.com/v1/checks |
| Method | POST |
| Price | $0.01 USDC = 10000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| payTo | 0xd63e74bCB00757C8fDb1817F1558ed8b97C608b6 |
| Seller | stumble.vimabrosta.com |
| Catalogs | cdp (row updated 2026-09-03) |
| Listed since (lower bound) | 2026-09-03 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-03 |
| CDP quality counters | 1 calls and 1 unique payers in 30 days, last call 2026-09-03 (catalog-reported, not verified on chain) |
| Category (keyword rule) | crypto-data |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | none |
Unpaid probe (census of )
| Field | Value |
|---|---|
| Probe | not probed in this build |
Latest re-probe
| Field | Value |
|---|---|
| Re-probed at | 2026-10-01T00:13:18.000Z (cron) |
| Verdict now | live changed from unprobed |
| HEAD / GET | 200 / 402 |
| accepts[0] | {"scheme":"exact","network":"eip155:8453","amount":"10000","payTo":"0xd63e74bCB00757C8fDb1817F1558ed8b97C608b6","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":120,"extra":{"name":"USD Coin","version":"2"}} |
| Live amount equals catalog price | yes |
| Latency | 849 ms |
| Error | none |
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Distinct payers | 3 |
| Payments | 8 |
| USDC volume | $0.54 |
| Median payment | n/a |
| First / last payment | 2026-09-09 / 2026-09-24 |
| Sampler-shaped share of payments | n/a |
| Payers that are not samplers | n/a |
| Source | blockscout-sample — newest page of inbound ERC-20 transfers only (<=50); counts are a floor, not a total |
| Address | 0xd63e74bCB00757C8fDb1817F1558ed8b97C608b6 |
Declared input and output (extensions.bazaar)
{
"input": {
"body": {
"condition": {
"keyword": "sold out",
"type": "keyword",
"when": "disappears"
},
"url": "https://shop.example/product"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"type": "json",
"example": {
"evidence": {
"checked_at": 1790000000,
"excerpt": "...",
"http_status": 200
},
"matched": false,
"receipt": {
"price": "$0.01",
"product": "check"
},
"value": "present"
}
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://stumble.vimabrosta.com/v1/checks' -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/c2bda453b47f/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"c2bda453b47f"} 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 stumble.vimabrosta.com.