x402 census · sentinel.rootstuff.io · c9f40d38f5ad · JSON
POST /x402/deadman
unprobed
Dead-man switch: a signed callback when your heartbeats stop
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.rootstuff.io/x402/deadman |
| Method | POST |
| Price | $0.05 USDC = 50000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0x38287535a4f47f53360940cfad8bf9ac5bc04a69 |
| Seller | sentinel.rootstuff.io |
| Catalogs | cdp (row updated 2026-09-10) |
| Listed since (lower bound) | 2026-09-10 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-10 |
| CDP quality counters | 1 calls and 1 unique payers in 30 days, last call 2026-09-10 (catalog-reported, not verified on chain) |
| Category (keyword rule) | other/unknown |
| 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 |
|---|---|
| Distinct payers | 3 |
| Payments | 3 |
| USDC volume | $0.03 |
| Median payment | $0.01 |
| First / last payment | 2026-09-14 / 2026-09-30 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0x38287535a4f47f53360940cfad8bf9ac5bc04a69 |
Declared input and output (extensions.bazaar)
{
"input": {
"body": {
"callback_url": "https://agent.example/hooks/deadman",
"payload": {
"task": "crawl-7"
},
"timeout_seconds": 600
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"type": "json",
"example": {
"deadline_at": "2026-09-10T15:10:00+00:00",
"expires_at": "2026-09-11T15:00:00+00:00",
"heartbeat_url": "https://sentinel.rootstuff.io/api/agent/wakes/wk_01j…/heartbeat/…",
"kind": "deadman",
"receipt": {
"algorithm": "ed25519",
"key_id": "…",
"receipt_id": "01J…",
"signature": "…"
},
"state": "active",
"wake_id": "wk_01j…"
}
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://sentinel.rootstuff.io/x402/deadman' -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/c9f40d38f5ad/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"c9f40d38f5ad"} 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 sentinel.rootstuff.io.