x402 census · sellers · base-gas-x402-production.up.railway.app · JSON
base-gas-x402-production.up.railway.app live
base-gas-x402-production.up.railway.app lists 4 x402 resources in cdp; 4 answered a valid 402 to an unpaid GET, 0 are dead; prices $0.002 to $0.02; on-chain 6 payers, 6 payments, $0.04 USDC; discovery files: openapi.
Listed resources
4
GET 4
Valid 402
4 / 4
verdict live
Dead
0
none
Prices
$0.002–$0.02
median $0.01; networks base
Payers on record
6
6 payments, $0.04 USDC, last 2026-09-15
Sampler share
100.0%
payments from monitor/indexer-shaped wallets
Promote base-gas-x402-production.up.railway.app on bazaar.agentexchange.work: listed and featured for 1 USD each, or found + verified + monitored with alerts + who looked you up for 3 USD per 30 days
POST this body; read the 402; pay USDC on Base (x402 exact scheme); resend with the payment header; 201 and the listing is live on /listings, /listings.json and every store discovery file. Paying again with the same url renews it.
curl -X POST https://bazaar.agentexchange.work/listings -H 'content-type: application/json' -d '{"url":"https://base-gas-x402-production.up.railway.app/","name":"base-gas-x402-production.up.railway.app"}'Or the seller bundle: 3 USD for 30 days, renewable in one call
- Found: listed on /listings, /listings.json and every store discovery file, and featured at the top of / (paid placement)
- Verified: your URL probed now; a badge at /bundle/<id>.svg that shows its live x402 status
- Monitored: probed unpaid every hour; when your 402 or route breaks or recovers we POST {host,url,from,to,at} to alert_url; history at /bundle/<id>.json
- Who looked you up: every request for your seller page on this host: time, user agent, country, in /bundle/<id>.json
curl -X POST https://bazaar.agentexchange.work/bundle -H 'content-type: application/json' -d '{"url":"https://base-gas-x402-production.up.railway.app/","name":"base-gas-x402-production.up.railway.app"}'Add "alert_url":"https://…" to the body to get the alerts; pay the same call again: 30 more days.
Then POST https://bazaar.agentexchange.work/featured (1 USD, 30 days) puts it at the top of the front page. Measured reach in the 24 h to 2026-10-21T21:52:38Z: 162 distinct agents and 4041 reads on the store discovery files that carry every listing, 23979 requests on this host; terms and proof at listings.json.
Get an alert when base-gas-x402-production.up.railway.app goes down or comes back
This census re-probes listed routes every hour. Connect the Agent Exchange app on Zapier and the trigger Paid API Status Changed (Host: base-gas-x402-production.up.railway.app) sends each change to Slack, Google Sheets, Gmail, Salesforce or any of Zapier's apps. It needs a card key: 19 USD for 1,000 calls, or 29 USD a month (store /billing). Polling the trigger uses no credit.
The same feed as JSON: GET https://bazaar.agentexchange.work/v1/feeds/status-changes?host=base-gas-x402-production.up.railway.app with X-API-Key: ak_...
Discovery files on the host (checked 2026-10-22)
| File | Status | Detail |
|---|---|---|
| /.well-known/x402 | absent (HTTP 404) | |
| /openapi.json | present | 5 paths, 4 operations with x-payment-info, 4 declare a 402 response |
| /llms.txt | absent (HTTP 404) | |
| /.well-known/agent-card.json | absent (HTTP 404) |
On-chain settlement facts (public payTo addresses)
6 distinct paying wallets, 6 payments, $0.04 USDC between 2026-08-30 and 2026-09-15; 100.0% of payments came from sampler-shaped wallets. Source: forensics-2026-09-30; the payTo also receives for 1 other host; on-chain totals are per address, not per host.
payTo: 0x0D083590c048A243e24a75E3a7C968145DE25B44. The same payTo also receives for 1 other host: agentcash-fortune-demo-six.vercel.app; on-chain totals are per address, not per host.
Resources (4)
| Resource | Price | Network | Verdict | Catalogs | Description |
|---|---|---|---|---|---|
| GET /gas | $0.002 | base | live re-probed 2026-10-21 | cdp | Current gas price on Base and what a transaction costs in USD right now: base fee, priori… |
| GET /gas/compare | $0.01 | base | live re-probed 2026-10-16 | cdp | Live gas cost across Base, OP Mainnet, Arbitrum One and Ethereum in one call, in USD and … |
| GET /gas/cheapest-window | $0.02 | base | live re-probed 2026-10-14 | cdp | When to transact on Base, from 7 days of gas history: the hours to avoid, the cheapest ho… |
| GET /gas/history | $0.01 | base | live | cdp | Base gas history sampled every 5 minutes: time series, min/max/average/median, and whethe… |
Catalog rows: cdp 4. Listed since at least 2026-10-19; last catalog update 2026-10-25. CDP counters: 669 calls, 23 payer-rows in 30 days (catalog-reported).
Badge
<a href="https://bazaar.agentexchange.work/seller/base-gas-x402-production.up.railway.app"><img src="https://bazaar.agentexchange.work/seller/base-gas-x402-production.up.railway.app.svg" alt="base-gas-x402-production.up.railway.app on the Agent Exchange x402 census: 4 routes live"></a>
Paid report (x402)
GET https://bazaar.agentexchange.work/seller/base-gas-x402-production.up.railway.app/report.json re-probes up to 18 of these resources right now, re-fetches the manifest and returns the whole record for $0.05 USDC on Base. Unpaid requests answer 402 with the terms. Pricing.