x402 census · base-agent-preflight.bytoken2023.workers.dev · ea14299fb6a1 · JSON
GET /v1/x402/payment-guard/evaluate
unprobed
AI agent x402 payment firewall: enforce budgets and mandates, simulate transactions, score merchant and domain risk, prevent replay, require human approval, and audit delivery before autonomous spending.
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://base-agent-preflight.bytoken2023.workers.dev/v1/x402/payment-guard/evaluate |
| Method | GET |
| Price | $0.10 USDC = 100000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0x94F751f04b98507D31b500b7Ed50bE68A1514873 |
| Seller | base-agent-preflight.bytoken2023.workers.dev |
| Catalogs | payai (row updated 2026-09-30) |
| Listed since (lower bound) | 2026-09-30 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-30 |
| CDP quality counters | not in the CDP catalog |
| Category (keyword rule) | domains/dns |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | Agent Payment Guard · x402, AI agents, payment firewall, risk, budget |
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 | 2 |
| Payments | 11 |
| USDC volume | $0.13 |
| Median payment | $0.005 |
| First / last payment | 2026-07-01 / 2026-07-27 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0x94F751f04b98507D31b500b7Ed50bE68A1514873 (contract: EIP7702StatelessDeleGator) |
Declared input and output (extensions.bazaar)
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"url": "https://x402.twit.sh/tweets/by/id?id=1110302988",
"request_id": "demo-request-1",
"session_id": "demo-session",
"max_single_usdc": "0.10",
"daily_budget_usdc": "5.00",
"session_budget_usdc": "1.00"
}
},
"output": {
"type": "json",
"example_truncated": true,
"chars": 412
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://base-agent-preflight.bytoken2023.workers.dev/v1/x402/payment-guard/evaluate' -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/ea14299fb6a1/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"ea14299fb6a1"} 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 base-agent-preflight.bytoken2023.workers.dev.