Polymarket Plugin

Gives Claude direct access to Polymarket's prediction markets on Polygon. You can buy and sell YES/NO tokens, check positions, manage orders, and redeem winnings without leaving the conversation. The skill includes proper trading safeguards: paper mode by default, mandatory typed confirmation before any real transaction, preview requirements for every trade, and session risk limits. It's aimed at both English and Chinese speaking traders, with trigger phrases covering everything from "bet on" to "充值" and special support for 5-minute crypto markets. Built on the onchainos CLI, so you'll need that installed first. If you're already trading on Polymarket or want to automate position management through Claude, this handles the full lifecycle.

skills.sh installs: 510
GitHub stars: 12
last updated: Aug 21, 2026

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Install

$ npx -y skills add okx/plugin-store --skill polymarket-plugin --agent claude-code

Installs into .claude/skills of the current project.

Files

Live Trading Confirmation Protocol

These gates are mandatory for the AI agent driving this skill. Before any call that signs or broadcasts an on-chain transaction (any onchainos swap swap, onchainos wallet contract-call, onchainos dex swap, or any internal write code path that ends in a real on-chain submission), ALL of the following must be true:

SKILL.md on GitHub

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