pennyrail.vercel.app publishes 7 machine-payable endpoints over the x402 protocol, priced from $0.001 to $0.005 per call. Each was probed directly; the response code below is what it returned.
| Endpoint | Method | Price | Probe |
|---|---|---|---|
| /api/bazaar/color-convert | POST | $0.001 | 402 |
| /api/bazaar/forecast-naive | POST | $0.001 | 402 |
| /api/bazaar/hacker-news | POST | $0.005 | 402 |
| /api/bazaar/json-query | POST | $0.001 | 402 |
| /api/bazaar/openapi-validate | POST | $0.001 | 402 |
| /api/bazaar/web-extract | POST | $0.005 | 402 |
| /api/bazaar/x402-quote | POST | $0.002 | 402 |
Convert a CSS color between hex, RGB and HSL. Accepts #RRGGBB, rgb(r,g,b), hsl(h,s%,l%) or numeric RGB fields. Exact-match PennyRail gap-arbitrage route.
Generate mean, naive and drift baseline forecasts with simple 95% prediction intervals. Useful as a sanity floor before paying for a more complex forecasting model. Exact-match PennyRail gap-arbitrage…
Search Hacker News stories/comments or fetch front-page results from the public Algolia HN index. Returns titles, URLs, authors, points, comments and timestamps as clean JSON. Exact-match PennyRail ga…
Extract a value from JSON by dot/bracket path such as items[2].name. Deterministic, no network, returns found/value and normalized path. Exact-match PennyRail gap-arbitrage route.
Validate a JSON request or response payload against one OpenAPI 3.x / Swagger 2.x operation schema. Supports deterministic JSON-Schema validation rules without external calls. Exact-match PennyRail ga…
Extract the useful content from a public URL as clean Markdown for agents. Uses a browser-backed reader when needed and strips navigation/boilerplate. Exact-match PennyRail gap-arbitrage route.
Probe a public HTTP endpoint without paying and decode its HTTP 402 payment requirements into clean JSON: status, network, asset, amount, pay-to and challenge metadata when exposed. Exact-match PennyR…