78trust / 100
Check
by Countersignatory in Security & trust
x402 APIPassing, checked 7 min ago
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.
POST https://countersignatory.com/v1/x402/check
Last 30 days
All checks passedSome failedAll failedNot checked
- Uptime
- 100%
- Response time
- 182 ms typical, 368 ms slowest 5%
- Last check
- 7 min ago
- Next check
- in 21 min
How to call it
# See the payment challenge (nothing is charged)
curl -i -X POST "https://countersignatory.com/v1/x402/check" \
-H "content-type: application/json" \
-d '{"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"}'import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";
const client = new x402Client().register(
"eip155:8453",
new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);
// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fcountersignatory.com%2Fv1%2Fx402%2Fcheck
const res = await pay("https://countersignatory.com/v1/x402/check", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({"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"}),
});
console.log(await res.json());Example input
{
"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"
}Example output
{
"answer_url": "https://countersignatory.com/v1/orders/ord_4066de73e09a4ef597802aa350ada30b",
"created_at": "2026-10-07T22:07:09.547Z",
"currency": "USD",
"deadline": "2026-10-08T22:07:11.748Z",
"fulfilment": "Answered by hand by a named group. Every answer names its responder and how they are disclosed.",
"id": "ord_4066de73e09a4ef597802aa350ada30b",
"market": "check.general",
"next": "GET answer_url until status is answered, refused, refunded or expired. The answer carries value, reason and responder: { id, disclosed_as }.",
"paid_at": "2026-10-07T22:07:11.748Z",
"payment": {
"network": "eip155:8453",
"rail": "x402",
"transaction": "0x4adebdb082c2d6eda39f3869eab87a0b31490d096e87f2a0751c7a168bedfd98"
},
"price": 1.25,
"sla_seconds": 86400,
"status": "paid",
"template": "approval"
}Security scan
- No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.
Recent checks
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 7 min ago | Passed | 402 | 170 ms | $1.25 |
| 4 h ago | Passed | 402 | 165 ms | $1.25 |
| 7 h ago | Passed | 402 | 180 ms | $1.25 |
| 11 h ago | Passed | 402 | 368 ms | $1.25 |
| 14 h ago | Passed | 402 | 182 ms | $1.25 |
| 18 h ago | Passed | 402 | 1.2 s | $1.25 |
| 22 h ago | Passed | 402 | 135 ms | $1.25 |
| 25 h ago | Passed | 402 | 235 ms | $1.25 |
| 29 h ago | Passed | 402 | 157 ms | $1.25 |
| 32 h ago | Passed | 402 | 224 ms | $1.25 |
| 38 h ago | Passed | 402 | 244 ms | $1.25 |