x402 census · apexfaucet.xyz · b6864d6cc211 · JSON
GET /api/x402/arc-gas
live
What a transaction on Arc ACTUALLY costs, measured from real receipts rather than quoted from the docs. The companion to /api/x402/arc-cost, which prices a named operation at the current gas price: that one is the quote, this one is the measurement and the tail. The most repeated claim about Arc is that USDC-as-gas means predictable low fees. The low half is true; the predictable half does not su…
Verdict: live. The unpaid GET reached a valid 402 (confirmed by the re-probe of 2026-10-01).
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://apexfaucet.xyz/api/x402/arc-gas |
| Method | GET |
| Price | $0.004 USDC = 4000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base); also accepts eip155:5042, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| payTo | 0xd334ab5151c624cada654854e2879903dc4217ed |
| Seller | apexfaucet.xyz |
| Catalogs | cdp (row updated 2026-09-27) |
| Listed since (lower bound) | 2026-09-27 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-27 |
| CDP quality counters | 3 calls and 1 unique payers in 30 days, last call 2026-09-27 (catalog-reported, not verified on chain) |
| Category (keyword rule) | crypto-data |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | APEX Arc gas cost from receipts · arc, gas, fees, transaction cost, usdc |
Unpaid probe (census of )
| Field | Value |
|---|---|
| Probe | not probed in this build |
Latest re-probe
| Field | Value |
|---|---|
| Re-probed at | 2026-10-01T14:13:42.000Z (cron) |
| Verdict now | live changed from unprobed |
| HEAD / GET | 402 / 402 |
| accepts[0] | {"scheme":"exact","network":"base","amount":"4000","payTo":"0xd334ab5151c624cada654854e2879903dc4217ed","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}} |
| Live amount equals catalog price | yes |
| Latency | 943 ms |
| Error | none |
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Distinct payers | 3 |
| Payments | 50 |
| USDC volume | $1.45 |
| Median payment | n/a |
| First / last payment | 2026-09-27 / 2026-09-30 |
| Sampler-shaped share of payments | n/a |
| Payers that are not samplers | n/a |
| Source | blockscout-sample — newest page of inbound ERC-20 transfers only (<=50); counts are a floor, not a total |
| Address | 0xd334ab5151c624cada654854e2879903dc4217ed |
Declared input and output (extensions.bazaar)
{
"input": {
"discoverable": true,
"method": "GET",
"type": "http"
},
"output": {
"type": "json",
"example": {
"asset": "USDC",
"data": {
"holders": 9902,
"priceUsd": 0.0000041,
"symbol": "APEX"
},
"ok": true,
"paid": 0.01,
"tier": "cheap"
}
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://apexfaucet.xyz/api/x402/arc-gas' -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/b6864d6cc211/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"b6864d6cc211"} 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 apexfaucet.xyz.