We keep the data that disappears.

Prediction-market order books vanish when a market resolves. Model prices get silently overwritten when a provider edits a page. Chain state dies with the block. Almost nobody archives any of it. We record it every minute and sell the history per query.

40datasets

1.1Mrows / day

60scapture interval

0accounts required

What we archive

Prediction marketsOrder books and pricing from Polymarket and Kalshi, including depth — kept after the market resolves and the book is gone.

Model & inference pricingPer-million input/output pricing across providers, captured on change. Vendors rewrite these pages without notice.

Cloud spot ratesInstance pricing over time, so you can see what an hour of compute actually cost last quarter.

Grid & energyERCOT load and generation at five-minute resolution, alongside published market reports.

Perp funding & chain stateFunding rates, gas, and pool state that exists only if somebody recorded it at the time.

Supply & componentsDrug shortage notices, memory and component pricing, FX series.

Priced per answer, not per seat

A request returns a machine-readable price before anything is charged, so a client can decide before it commits. Most queries cost a few cents. There is no minimum, no monthly floor, and no sales call.

$ curl -i https://anansidata.xyz/paid/data/latest?dataset=cloud_spot

HTTP/1.1 402 Payment Required
payment-required: { "price": "0.05", "currency": "USD" }

# settle, then repeat the request

HTTP/1.1 200 OK
{ "rows": 812, "as_of": "2026-09-16T08:30Z",
  "provenance": { "source": "azure-retail", "licence": "public" } }

Two ways to buy

Subscription — monthly plans billed by card through RapidAPI, with a free tier to evaluate on.
Per call — no account at all. Your client pays for the single request it makes and the data returns in the same response.

Start free on RapidAPI Browse the catalog API docs

How it is collected

Every dataset records its own provenance: where the value came from, when it was captured, and the licence it was published under. Sources whose terms do not permit redistribution are sold only as derived series — spreads, ranges, changes — never as raw copies. Where a value is derived rather than observed, the response says so.