Seer protocolDecision infrastructureEst. on Gnosis Chain

See what the markets believe.

Seer is an open protocol for prediction markets. Ask a question, let traders price every answer, and read one clear signal. Five apps share the same markets, tokens and oracle, each for a different kind of decision.

Explore markets How Seer works
Sample prices

Market types
4 + conditional
Answers
Reality.eth + Kleros
Collateral
sDAI xDAI · sUSDS
Chains
4 ETH · OP · GNO · BASE
One protocol beneath five apps

Every app reads the same markets

Pick an app to see the building blocks it uses, or a building block to see which apps rely on it.

Seer protocol
Same market formatSame outcome tokensSame oracle
Sample thread · Lattice Builders Grants · Round 4

One grant round, four apps, one set of markets

Sample data · fictional DAO

Building blocks

Four market types, one format

Reality.eth answers · Kleros arbitration

How a market gets its answer

Every market passes through the same six states. Select one to see what happens and who acts.

For builders

Outcome tokens are ordinary tokens

Every Seer market sits on Gnosis Conditional Tokens. Collateral splits into one token per outcome, and each position is wrapped as an ERC-20, so it trades on ordinary pools, sits in any wallet and can be read by any contract.

  • Split 1 sDAI into one token of every outcome.
  • Merge a full set back into 1 sDAI at any time.
  • Redeem winning tokens for collateral after the answer is final.
  • Create a market without permission, on any of the four chains.
Every opinion has a priceEst. on Gnosis Chain

Ask a question. Read the answer.

Open the App
Concept · 01 seer.pm

Design notes

All notes for the six interfaces
  1. Wedges carry prices. The kit's converging wedges are drawn from sample prices: band width is an outcome's price, and the bands meet in one point because a full set of outcome tokens is worth 1 collateral.
  2. A protocol map replaces the marketing grid. The raven art, the category pill cloud and the feature cards become one diagram: five apps above the building blocks they share.
  3. One worked example instead of claims. A fictional grant round is followed through four apps with the same market IDs they use. No invented protocol totals.
  1. Typefaces. Geist, Geist Mono and Instrument Serif Italic stand in for PP Neue Montreal, Suisse Int'l Mono and Reckless when those are not installed.
  2. Colour. Muted text is lifted to pass WCAG AA. Status amber and red appear only on market states, next to their label; charts use the system palette, violet first.
  3. Two poster moments. The ink protocol layer and the violet closing poster come from the kit's posters; everything else stays on calm kit surfaces.