x402 census · sellers · marketplace-price-api-production.up.railway.app · JSON
marketplace-price-api-production.up.railway.app live
marketplace-price-api-production.up.railway.app lists 1 x402 resources in cdp; 1 answered a valid 402 to an unpaid GET, 0 are dead; prices $0.001 to $0.001; on-chain 4 payers, 7 payments, $0.009 USDC; discovery files: none.
Listed resources
1
GET 1
Valid 402
1 / 1
verdict live
Dead
0
none
Prices
$0.001–$0.001
median $0.001; networks base
Payers on record
4
7 payments, $0.009 USDC, last 2026-09-29
Sampler share
100.0%
payments from monitor/indexer-shaped wallets
Promote marketplace-price-api-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://marketplace-price-api-production.up.railway.app/","name":"marketplace-price-api-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://marketplace-price-api-production.up.railway.app/","name":"marketplace-price-api-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 marketplace-price-api-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: marketplace-price-api-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=marketplace-price-api-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 | absent (HTTP 404) | |
| /llms.txt | absent (HTTP 404) | |
| /.well-known/agent-card.json | absent (HTTP 404) |
On-chain settlement facts (public payTo addresses)
4 distinct paying wallets, 7 payments, $0.009 USDC between 2026-09-14 and 2026-09-29; 100.0% of payments came from sampler-shaped wallets. Source: forensics-2026-09-30; the payTo also receives for 3 other hosts; on-chain totals are per address, not per host.
payTo: 0x1394A802c94ab096abBd91CcC632843b03f46614. The same payTo also receives for 3 other hosts: agent-drift-api-production.up.railway.app, agent-memory-api-production-f2c4.up.railway.app, joyful-charm-production-bf6d.up.railway.app; on-chain totals are per address, not per host.
Resources (1)
| Resource | Price | Network | Verdict | Catalogs | Description |
|---|---|---|---|---|---|
| GET /tcg/search | $0.001 | base | live re-probed 2026-10-16 | cdp | Search TCGPlayer for trading card prices (Pokemon, Magic, Yu-Gi-Oh, etc.) by card name. R… |
Catalog rows: cdp 1. Listed since at least 2026-10-22; last catalog update 2026-10-22. CDP counters: 5 calls, 5 payer-rows in 30 days (catalog-reported).
Badge
<a href="https://bazaar.agentexchange.work/seller/marketplace-price-api-production.up.railway.app"><img src="https://bazaar.agentexchange.work/seller/marketplace-price-api-production.up.railway.app.svg" alt="marketplace-price-api-production.up.railway.app on the Agent Exchange x402 census: 1 routes live"></a>
Paid report (x402)
GET https://bazaar.agentexchange.work/seller/marketplace-price-api-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.