Every market in the
known world.

Alexandria gathers prices, depth, and news from Polymarket, Kalshi, and beyond into one professional terminal — the whole market, under one standard.

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Terminal functions

On a Bloomberg, you type a mnemonic and hit enter. Alexandria works the same way — four functions cover the known world of odds.

BOOK Consolidated book Depth from every venue merged into one ladder. The true best price, with each venue's fees and slippage already priced in.
SCAN Divergence scanner The same event priced differently on two venues is either a signal or a trade. SCAN watches every pair and flags the edge after fees.
WIRE News, mapped to markets Headlines matched to the contracts they move, next to the price reaction — so you see repricing as it happens, not after.
FEED Research data Every tick, book snapshot, and resolution — normalized into one schema and available over the API for backtests and systematic strategies.
COVERAGE Polymarket · Kalshi · Manifold · Metaculus · Limitless — more venues added as they matter.

The Library of Alexandria was built on a simple, immodest idea: gather every scroll in the known world under one roof. It was only possible because Alexander had done something harder first — for a brief moment, the known world shared one language and one standard.

Prediction markets are today's scattered scrolls. There is real volume and real information in their prices, spread across venues that don't speak to each other, each with its own fees, formats, and blind spots. We're building the library: one screen where the whole market is legible, and one dataset you can actually do research on.

— The Alexandria team

The library is opening soon.