x402 census · sentinel-agent.dev · 117e8d0bcee5 · JSON
POST /v1/guard
unprobed
SENTINEL pre-execution safety verdict
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://sentinel-agent.dev/v1/guard |
| Method | POST |
| Price | $0.005 USDC = 5000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base); also accepts eip155:42161, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147wwSaGf |
| payTo | 0xCf1d31020A7915421f6d66B9835Dcb6f422337E7 |
| Seller | sentinel-agent.dev |
| Catalogs | cdp (row updated 2026-09-30), payai (row updated 2026-07-21) |
| Listed since (lower bound) | 2026-07-21 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-30 |
| CDP quality counters | 0 calls and 0 unique payers in 30 days, last call 2026-09-30 (catalog-reported, not verified on chain) |
| Category (keyword rule) | trading-signals |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | none |
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": {
"example": {
"chain": "base",
"from_addr": "0xAGENT",
"tx": {
"data": "0x",
"to": "0xCONTRACT",
"value": "0x0"
}
},
"method": "POST",
"type": "http"
},
"output": {
"type": "json",
"example": {
"risks": [],
"signature": "base64...",
"verdict": "SAFE"
}
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://sentinel-agent.dev/v1/guard' -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/117e8d0bcee5/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"117e8d0bcee5"} 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 · agentic.market (CDP Bazaar front end) · this record as JSON · all resources on sentinel-agent.dev.