x402 census · sellers · derivatives-pricer-production.up.railway.app · JSON
derivatives-pricer-production.up.railway.app unverified
derivatives-pricer-production.up.railway.app lists 7 x402 resources in cdp, payai; 0 answered a valid 402 to an unpaid GET, 0 are dead; prices $0.01 to $0.25; on-chain 2 payers, 2 payments, $0.02 USDC; discovery files: manifest, agent_card, llms, openapi.
Listed resources
7
POST 7
Valid 402
0 / 7
verdict unverified
Dead
0
none
Prices
$0.01–$0.25
median $0.10; networks base
Payers on record
2
2 payments, $0.02 USDC, last 2026-09-14
Sampler share
100.0%
payments from monitor/indexer-shaped wallets
Doctor's note: 7 of derivatives-pricer-production.up.railway.app's routes fail for paying agents right now
- 7 method-gated: the listed method is refused (405): agents call the method the catalogue says
POST /v1/option/price method-gatedPOST /v1/portfolio/scenario method-gatedPOST /v1/portfolio/greeks method-gatedPOST /v1/option/scenario-from-surface method-gatedPOST /v1/option/price-from-surface method-gatedPOST /v1/volatility/surface method-gated
After your fix, re-check every route now: GET https://bazaar.agentexchange.work/seller/derivatives-pricer-production.up.railway.app/report.json, 0.05 USDC by x402, one call (up to 18 routes probed live, with the reason for each). One route: GET https://bazaar.agentexchange.work/r/<id>/probe.json, 0.01. Kept watched for 30 days with alerts: the 3 USDC seller bundle below, or free alerts through Zapier.
Promote derivatives-pricer-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://derivatives-pricer-production.up.railway.app/","name":"derivatives-pricer-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://derivatives-pricer-production.up.railway.app/","name":"derivatives-pricer-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 derivatives-pricer-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: derivatives-pricer-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=derivatives-pricer-production.up.railway.app with X-API-Key: ak_...
Discovery files on the host (checked 2026-10-22)
| File | Status | Detail |
|---|---|---|
| /.well-known/x402 | present | object-list, 7 entries, with prices |
| /openapi.json | present | 18 paths, 7 operations with x-payment-info, 7 declare a 402 response |
| /llms.txt | present | 7,392 bytes, mentions x402 |
| /.well-known/agent-card.json | present | x402 Derivatives Analytics Desk |
On-chain settlement facts (public payTo addresses)
2 distinct paying wallets, 2 payments, $0.02 USDC between 2026-08-30 and 2026-09-14; 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: 0x34cfb8bdbf16e4484b7da0ed31deed5771b16c8f. The same payTo also receives for 1 other host: ai-compute-production.up.railway.app; on-chain totals are per address, not per host.
Resources (7)
| Resource | Price | Network | Verdict | Catalogs | Description |
|---|---|---|---|---|---|
| POST /v1/option/price | $0.01 | base | method-gated re-probed 2026-10-16 | cdp, payai | When to use: you already have model inputs (S or forward mark, K, T, r, σ) and need fair … |
| POST /v1/portfolio/scenario | $0.25 | base | method-gated | cdp, payai | When to use: what-if P&L under relative spot/vol shocks and calendar time decay on a Euro… |
| POST /v1/portfolio/greeks | $0.15 | base | method-gated | cdp, payai | When to use: multi-leg European book → need net MTM + net Greeks (long/short via signed q… |
| POST /v1/option/scenario-from-surface | $0.15 | base | method-gated | cdp, payai | When to use: book reval on an IV surface under F/rate/time/vol shocks with sticky moneyne… |
| POST /v1/option/price-from-surface | $0.08 | base | method-gated | cdp, payai | When to use: you already have an IV surface (k,T,σ) and need to price options on it — not… |
| POST /v1/volatility/surface | $0.10 | base | method-gated | cdp, payai | When to use: book of market premiums → need IV grid + per-quote Greeks (not a single cont… |
| POST /v1/option/implied-vol | $0.03 | base | method-gated | cdp, payai | When to use: one market premium → need σ̂ + Greeks; cheaper/faster than a full surface. S… |
Catalog rows: cdp 7, payai 7. Listed since at least 2026-10-12; last catalog update 2026-10-25. CDP counters: 10 calls, 10 payer-rows in 30 days (catalog-reported).
Badge
<a href="https://bazaar.agentexchange.work/seller/derivatives-pricer-production.up.railway.app"><img src="https://bazaar.agentexchange.work/seller/derivatives-pricer-production.up.railway.app.svg" alt="derivatives-pricer-production.up.railway.app on the Agent Exchange x402 census: 0 routes live"></a>
Paid report (x402)
GET https://bazaar.agentexchange.work/seller/derivatives-pricer-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.