x402 census · mm-agent-utils.gferrigno.deno.net · 0fe6d4577ca5 · JSON
GET /v1/x402-check
unprobed
Lint any x402 endpoint before you pay it: fetches the unpaid 402 challenge (v1 body or v2 PAYMENT-REQUIRED header), decodes price/network/asset/payTo, flags non-USDC assets, testnets, missing bazaar metadata and malformed fields.
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://mm-agent-utils.gferrigno.deno.net/v1/x402-check |
| Method | GET |
| Price | $0.003 USDC = 3000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0x4465C4C96e6437ce8607220772625D9C6073fCd3 |
| Seller | mm-agent-utils.gferrigno.deno.net |
| Catalogs | payai (row updated 2026-09-29) |
| Listed since (lower bound) | 2026-09-29 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-29 |
| CDP quality counters | not in the CDP catalog |
| Category (keyword rule) | crypto-data |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | mm-agent-utils · base, wallet, x402, extraction, agent-tools |
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 |
|---|---|
| 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": {
"type": "http",
"method": "GET",
"queryParams": {
"url": "https://example.com/paid-endpoint"
}
},
"output": {
"type": "json",
"example": {
"url": "https://example.com/paid-endpoint",
"offers": [
{
"pay_to": "0x...",
"network": "eip155:8453",
"price_usdc": "0.01",
"asset_symbol": "USDC"
}
],
"verdict": "ok",
"warnings": [],
"http_status": 402,
"x402_version": 2
}
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://mm-agent-utils.gferrigno.deno.net/v1/x402-check' -H 'accept: application/json'
The catalog declares GET. 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/0fe6d4577ca5/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"0fe6d4577ca5"} 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 mm-agent-utils.gferrigno.deno.net.