x402 census · api.402rates.com · 2cddc8265398 · JSON
GET /v1/settlement/costs
unprobed
Measured USDC transfer costs on Base, Polygon, Arbitrum, Ethereum and XDC: simulated gas, current token prices, fresh chain heads and applicable rollup L1 fees. Inputs and block references accompany each figure. Cheapest first; unmeasurable chains are excluded, not estimated. Business/professional use only. Terms: https://402rates.com/data-terms/
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://api.402rates.com/v1/settlement/costs |
| Method | GET |
| Price | $0.01 USDC = 10000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base); also accepts eip155:137, eip155:42161, eip155:50 |
| payTo | 0xf567Cfe0FDb87A1D6Ca330e3f30f0D3DA0F7cb98 |
| Seller | api.402rates.com |
| Catalogs | cdp (row updated 2026-09-28) |
| Listed since (lower bound) | 2026-09-28 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-28 |
| CDP quality counters | 10 calls and 2 unique payers in 30 days, last call 2026-09-28 (catalog-reported, not verified on chain) |
| Category (keyword rule) | crypto-data |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | 402rates.com · settlement, gas-costs, usdc, cross-chain, transfer-cost |
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 | 11 |
| Payments | 13 |
| USDC volume | $0.05 |
| Median payment | $0.001 |
| First / last payment | 2026-08-01 / 2026-09-29 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0xf567Cfe0FDb87A1D6Ca330e3f30f0D3DA0F7cb98 |
Declared input and output (extensions.bazaar)
{
"input": {
"method": "GET",
"queryParams": {
"chains": "base,polygon,arbitrum,ethereum,xdc"
},
"type": "http"
},
"output": {
"type": "json",
"example_truncated": true,
"chars": 2390
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://api.402rates.com/v1/settlement/costs' -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/2cddc8265398/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"2cddc8265398"} 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 api.402rates.com.