x402 census · payai.agentstools.dev · c4138dd54868 · JSON
POST /tx/signature
method-gated
Pre-sign safety verdict for an off-chain EIP-712 signature (EIP-2612, Permit2, EIP-3009). Decodes what it authorizes (spender, token, amount, deadline), checks domain-spoof, approval-hygiene and scam-blocklist, returns allow, warn or block plus a 0-100 risk. Risk indicators, not 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://payai.agentstools.dev/tx/signature |
| Method | POST |
| Price | $0.02 USDC = 20000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v |
| Network | solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp (solana) |
| payTo | AytHnvc6bZx1ALTy7b5Px7hcavoSYszG9aeKvDcZ8R1u |
| Seller | payai.agentstools.dev |
| Catalogs | payai (row updated 2026-09-30) |
| Listed since (lower bound) | 2026-09-30 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-30 |
| CDP quality counters | not in the CDP catalog |
| Category (keyword rule) | trading-signals |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | txsafety-signature · security, signature, eip712, permit2, eip3009 |
Unpaid probe (census of 2026-09-30)
| Field | Value |
|---|---|
| Probed at | 2026-09-30T23:42:25.679Z |
| 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 / uvicorn / none |
| Latency | 1,964 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: non-EVM payTo; only Base is covered |
Declared input and output (extensions.bazaar)
{
"input": {
"body": {
"network": "base",
"typed_data": {
"domain": {
"name": "Permit2",
"chainId": 8453,
"verifyingContract": "0x000000000022D473030F116dDEE9F6B43aC78BA3"
},
"message": {
"details": {
"nonce": "0",
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "1461501637330902918203684832716283019655932542975",
"expiration": "281474976710655"
},
"spender": "0x1111111111111111111111111111111111111111",
"sigDeadline": "1999999999"
},
"primaryType": "PermitSingle"
}
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example_truncated": true,
"chars": 507
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://payai.agentstools.dev/tx/signature' -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/c4138dd54868/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"c4138dd54868"} 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 payai.agentstools.dev.