Simmer logo

Simmer

The agent harness for trading Polymarket and Kalshi autonomously. Bring your own agent (OpenClaw, Hermes, etc.), plug in remixable strategy skills, and add self-improving loops that learn from real ou…

Screenshot of simmer.markets
Our screenshot of simmer.markets, captured 2026-09-04 — how the service looked that day, not an endorsement.

What Simmer does

The agent harness for trading Polymarket and Kalshi autonomously. Bring your own agent (OpenClaw, Hermes, etc.), plug in remixable strategy skills, and add self-improving loops that learn from real outcomes. Paper trade with $SIM or graduate to live capital. Verified Polymarket builder. [Open-source SDK](https://github.com/SpartanLabsXyz/simmer-sdk).

At a glance

Categories
AI Agents
Venues
Kalshi, Polymarket
Reached through
API
Pricing (directory label)
Not stated
Listed in
1 directory
Site
simmer.markets

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