x402 census · api.jagent.dev · 1a1224d245f9 · JSON

POST /v1/sig-check

unprobed

Pre-sign risk check for EIP-712 typed data, offline and rule-based. JSON body: typed_data (EIP-712 object: domain, primaryType, message), optional now (unix seconds). Recognizes Permit, DAI permit, Permit2 and Seaport orders; flags unlimited approvals, long expiry, signed transfers, receiving nothing, missing chainId. Returns risk, summary, flags. Body max 64 KB; nothing stored. | AI disclosure: …

Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.

Facts from the catalogs

Field Value

URL https://api.jagent.dev/v1/sig-check

Method POST

Price $0.005 USDC = 5000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base)

payTo 0x079A5AC8cbaB926ECD2b2FCcC13b693fB88e12Bb

Seller api.jagent.dev

Catalogs cdp (row updated 2026-09-28)

Listed since (lower bound) 2026-09-28 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-28

CDP quality counters 1 calls and 1 unique payers in 30 days, last call 2026-09-28 (catalog-reported, not verified on chain)

Category (keyword rule) chain-rpc

Templated path no

x402Version in catalog 2

Service name / tags EIP-712 Signature Check · evm, security, eip712, permit, wallet

Unpaid probe (census of )

Field

Value

Probe

not probed in this build

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

Distinct payers 1

Payments 1

USDC volume $0.001

Median payment $0.001

First / last payment 2026-09-29 / 2026-09-29

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x079A5AC8cbaB926ECD2b2FCcC13b693fB88e12Bb

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "now": 1790000000,
   "typed_data": {
    "domain": {
     "chainId": 8453,
     "name": "USD Coin",
     "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
     "version": "2"
    },
    "message": {
     "deadline": "1790000600",
     "nonce": 0,
     "owner": "0x1111111111111111111111111111111111111111",
     "spender": "0x2222222222222222222222222222222222222222",
     "value": "115792089237316195423570985008687907853269984665640564039457584007913129639935"
    },
    "primaryType": "Permit"
   }
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example_truncated": true,
  "chars": 437
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://api.jagent.dev/v1/sig-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/1a1224d245f9/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"1a1224d245f9"} 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 api.jagent.dev.