x402 census · chain-analyzer.com · 8be03c8cb841 · JSON
GET /api/v1/x402/presign/check
unprobed
Sign-time risk verdict for a destination or spender before value moves. Registry + ScamDB lookups plus at most one RPC call (approve spender code check), so it answers in milliseconds instead of running a full scan. Same verdict as the subscription REST API.
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://chain-analyzer.com/api/v1/x402/presign/check |
| Method | GET |
| Price | $0.10 USDC = 100000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| payTo | 0xe8e26183736D796d401Df30810207465fa708959 |
| Seller | chain-analyzer.com |
| Catalogs | cdp (row updated 2026-09-18) |
| Listed since (lower bound) | 2026-09-18 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-18 |
| CDP quality counters | 1 calls and 1 unique payers in 30 days, last call 2026-09-18 (catalog-reported, not verified on chain) |
| Category (keyword rule) | trading-signals |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | ChainAnalyzer · aml, sanctions, risk-score, compliance, blockchain |
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 | 8 |
| Payments | 8 |
| USDC volume | $1.07 |
| Median payment | $0.01 |
| First / last payment | 2026-07-07 / 2026-09-21 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0xe8e26183736D796d401Df30810207465fa708959 |
Declared input and output (extensions.bazaar)
{
"input": {
"method": "GET",
"queryParams": {
"chain": "ethereum",
"to": "0x0000db5c8b030ae20308ac975898e09741e70000"
},
"type": "http"
},
"output": {
"type": "json",
"example": {
"chain": "ethereum",
"confidence": 0.95,
"level": "critical",
"reasons": [
"Known drainer address (ScamDB)"
],
"score": 95,
"signals": {
"scamdb": true
},
"to": "0x0000db5c8b030ae20308ac975898e09741e70000",
"verdict": "danger"
}
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://chain-analyzer.com/api/v1/x402/presign/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/8be03c8cb841/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"8be03c8cb841"} 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 chain-analyzer.com.