x402 census · countersignatory.com · dc25dde9a626 · JSON
POST /v1/x402/check
method-gated
One screened human answers an approval, verification or judgment task: approve or reject, true or false, or a label, with a reason and the responder's disclosed identity. $1.25 at a 24-hour deadline. Answered by hand within the deadline or refunded in full automatically. Refused: CAPTCHAs, logins, third-party contact, medical, legal or financial advice.
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://countersignatory.com/v1/x402/check |
| Method | POST |
| Price | $1.25 USDC = 1250000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0xBA753EbbD6094bF05964171eAaa6393f31641381 |
| Seller | countersignatory.com |
| Catalogs | cdp (row updated 2026-10-08) |
| Listed since (lower bound) | 2026-10-08 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-10-08 |
| CDP quality counters | 1 calls and 1 unique payers in 30 days, last call 2026-10-08 (catalog-reported, not verified on chain) |
| Category (keyword rule) | agent-services |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | Countersignatory · human-in-the-loop, approval, verification, judgment |
Unpaid probe (census of 2026-10-22)
| Field | Value |
|---|---|
| Probed at | 2026-10-22T00:36:54.785Z |
| 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 / cloudflare / * |
| Latency | 456 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 |
|---|---|
| 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": {
"input": {
"action": "Send the refund of $40 to customer 1182",
"context": "The customer reported the item arrived broken and attached a photo. Policy allows refunds under $50 without a return."
},
"sla_seconds": 86400,
"template": "approval"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"type": "json",
"example_truncated": true,
"chars": 784
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://countersignatory.com/v1/x402/check' -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/dc25dde9a626/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"dc25dde9a626"} 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 countersignatory.com.