Polymarket News Trading Bot Architecture: From Event Feed to Order

A news bot competes on interpretation as much as speed: it must map evidence to the exact condition and estimate remaining probability edge.

Evidence ingestion

Connect official announcements, regulatory feeds, court records and selected wires. Store publication and receipt times. Deduplicate repeated reporting by entity, event type and time window.

Market mapping

Maintain question, outcomes, deadline and resolution criteria for every candidate. Semantic retrieval can suggest markets, but deterministic validation must confirm the exact condition.

Extraction and policy

One stage extracts entities, actions, values and evidence. A separate policy chooses whether to trade. Constrain model output to a schema and reject unsupported claims.

Edge and execution

Trade only when probability change exceeds spread, fees, slippage and uncertainty. Verify current CLOB depth and event age. Review Polymarket WebSocket practices.

TierZero builds Polymarket news bots and cross-market arbitrage bots.