x402 census · preflight.natio.re · 1e5a49dab903 · JSON
POST /v1/preflight/transaction
unprobed
Simulate and inspect an unsigned Base transaction for approvals, privileged selectors, reverts and target-code anomalies.
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://preflight.natio.re/v1/preflight/transaction |
| Method | POST |
| Price | $0.02 USDC = 20000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0x43061aF63a6D3FCdCaf22Fe508C04fD6dadc53B1 |
| Seller | preflight.natio.re |
| Catalogs | payai (row updated 2026-09-25) |
| Listed since (lower bound) | 2026-09-25 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-25 |
| CDP quality counters | not in the CDP catalog |
| Category (keyword rule) | other/unknown |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | Machine Preflight API · base, evm, solana, transaction, simulation |
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": {
"body": {
"to": "0x3333333333333333333333333333333333333333",
"data": "0x095ea7b30000000000000000000000001111111111111111111111111111111111111111ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
"from": "0x2222222222222222222222222222222222222222",
"chainId": 8453,
"valueWei": "0"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"risk": {
"level": "critical",
"score": 60,
"findings": [
{
"code": "UNLIMITED_TOKEN_APPROVAL",
"title": "Effectively unlimited token approval",
"severity": "critical"
}
]
},
"chain": {
"id": 8453,
"name": "Base"
},
"reportVersion": "1.0"
}
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://preflight.natio.re/v1/preflight/transaction' -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/1e5a49dab903/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"1e5a49dab903"} 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 preflight.natio.re.