Chainlink price history for prediction markets

Kalshi Eye records the Chainlink oracle prices that Polymarket carries on its real-time stream, one row per update, for BTC, ETH, SOL, XRP, BNB, DOGE, HYPE and ZEC against USD, since October 15, 2026. They sit on the same recorder clock as the order books, so crypto markets on Polymarket and Kalshi line up with the underlying price to the message.

Recorded since: October 15, 2026, every day, published the next morning.
Catalog: 8 price feeds (October 2026). Browse them in Markets.
Completeness: every hour's recording, per venue, on Data coverage.
Access: daily Parquet through Downloads, S3 sync with aws, rclone or DuckDB, and the REST API.

Datasets

Dataset	What it holds	Plan	Free sample
Chainlink prices `chainlink`	Chainlink oracle prices carried on Polymarket's real-time stream, one row per update.	Research	Parquet · CSV
Underlying spot (crypto) `spot`	Best bid, ask, and last for each crypto underlying on Coinbase, Bitstamp, and Kraken, every update.	Research	Parquet · CSV

Series

8 Chainlink series have their own page:

Why this archive

Crypto up/down and price-range markets turn on the underlying price at a moment. Having the oracle prices and exchange quotes on the same clock as the books lets you measure how markets moved with the price, not just how they settled.

Reading the files

One file per asset per UTC day. price is the oracle price; price_exact is the full-accuracy integer the stream sent, when present.
Filtering by a Kalshi series keeps the assets it references: a KXBTC* selection keeps BTC.
The spot dataset adds best bid, ask and last from Coinbase, Bitstamp and Kraken for the same assets. Kalshi's crypto markets settle on CF Benchmarks indices, so these quotes are a close proxy, not the settlement source.
Join to the order books on ts_recv: every dataset shares the same recorder clock.

BTC Chainlink prices next to a Kalshi 15-minute market's top of book, in DuckDB:

SELECT b.ts_recv, b.ticker, b.yes_bid, b.yes_ask, c.price AS btc_usd
FROM 'kalshieye-data/bbo/date=2026-10-20/series=KXBTC15M/bbo-KXBTC15M-2026-10-20.parquet' b
ASOF JOIN 'kalshieye-data/chainlink/date=2026-10-20/asset=BTC/chainlink-BTC-2026-10-20.parquet' c
  ON b.ts_recv >= c.ts_recv
ORDER BY b.ts_recv;

Plans

Explorer (free): none of the Chainlink datasets.
Research ($79/month): Chainlink prices, Underlying spot (crypto).
Full book ($149/month): Chainlink prices, Underlying spot (crypto).
Institutional: every dataset, with a commercial license. Talk to us.

Details and yearly prices are on Pricing.

Questions

Which Chainlink prices are recorded?

BTC, ETH, SOL, XRP, BNB, DOGE, HYPE and ZEC against USD, as Polymarket carries them on its real-time stream, one row per update since October 15, 2026.

How is this different from the spot dataset?

Chainlink is the oracle price. Spot is the best bid, ask and last on Coinbase, Bitstamp and Kraken. Both are on the same clock as the order books, so you can compare markets with either.

Can I try the Chainlink data for free?

Yes. Every dataset has a free sample file, no account needed, linked in the table above. A free account downloads every dataset for the free sample days (the 1st of every month from November 2026).

Is Kalshi Eye affiliated with Chainlink?

No. Kalshi Eye is independent and not affiliated with Chainlink. We record Chainlink's public market data ourselves.