Prediction exchange on Base

Create the question. Trade the outcome.

A creator-first prediction exchange on Base, where eligible users launch clearly defined real-world markets and trade outcomes in USDC.

Open by design.

How it works

Create markets around real-world questions—not only what is already listed.

See the deadline, rules, and resolution source before trading.

Sign with your wallet and settle onchain on Base.

Verified Base contract Native Base USDCPublic rules and sources18+ · Available where permitted

Open to questions. Strict about outcomes.

How TayDex works

01

Create

Eligible users launch a clearly defined market with an explicit question, YES/NO rules, a deadline, and a public resolution source.

02

Trade

Any eligible user buys YES or NO shares priced by LMSR AMM. A 2% protocol fee applies to each trade. All trades settle in USDC on Base.

03

Resolve

When the deadline passes, the creator proposes an outcome with the public resolution source. Eligible users may dispute during the 24-hour review window by staking 20 USDC. The admin/contract owner reviews and confirms the final result onchain.

Why TayDex

Creator-first

Eligible users can launch markets on any real-world question — not only predefined categories.

Explicit rules

Rules and the public resolution source are shown before trading.

Public sources

Resolution sources are listed on the market page. Outcomes are verifiable against those sources.

Inspectable onchain

Every trade and settlement goes through a verified Base mainnet smart contract. Inspectable on a Base explorer.

Resolution record

Finalized onchain outcomes only.

View all

No public resolution record yet.

Ready to trade?

Market creation is available to eligible users, subject to TayDex terms and geographic restrictions.

TAYDEX — Prediction exchange on Base