Web3 Polymarket
Polymarket integration for prediction market trading on Polygon. Covers authentication (L1 EIP-712, L2 HMAC-SHA256, builder headers), order placement (GTC/GTD/FOK/FAK, batch, post-only, heartbeat), market data (Gamma API, Data API, orderbook, subgraph), WebSocket streaming (market/user/sports channels), CTF operations (split, merge, redeem, negative risk), bridge (deposits, withdrawals, multi-chain), and gasless relayer transactions. Use when building AI agents, autonomous market makers, prediction market UIs, or any application integrating with Polymarket on Polygon.
Install
npx skills add Polymarket/agent-skills --skill web3-polymarketgit clone --depth 1 https://github.com/Polymarket/agent-skills.git /tmp/agent-skills
mkdir -p ~/.claude/skills
cp -r /tmp/agent-skills/. ~/.claude/skills/web3-polymarketPersonal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.
From the SKILL.md
# Polymarket Skill ## When to use this skill Use this skill when the user asks about or needs to build: - Polymarket API authentication (L1/L2, API keys, HMAC signing) - Placing or managing orders (limit, market, GTC, GTD, FOK, FAK, batch, cancel) - Reading orderbook data (prices, spreads, midpoints, depth) - Market data fetching (events, markets, by slug, by tag, pagination) - WebSocket subscriptions (market channel, user channel, sports) - CTF operations (split, merge, redeem positions) - Negative risk markets (multi-outcome, conversion, augmented neg risk) - Bridge operations (deposits, withdrawals, multi-chain) - Gasless transactions (relayer client, order attribution) - Builder program integration (order attribution, API keys, tiers) - Polymarket SDK usage (TypeScript @polymarket/clob-client, Python py-clob-client) ## API Configuration | API | Base URL | Auth | Purpose | |-----|----------|------|---------| | CLOB | `https://clob.polymarket.com` | L2 for trade endpoints | Orderbook, prices, order submission | | Gamma / Data | `https://gamma-api.polymarket.com` | None | Events, markets, search | | Data API | `https://data-api.polymarket.com` | None | Trades, positions, user data | | WebSocket (Market) | `wss://ws-subscriptions-clob.polymarket.com/ws/market` | None | Real-time orderbook | | WebSocket (User) | `wss://ws-subscriptions-clob.polymarket.com/ws/user` | API creds in message | Trade/order updates |
Details
- Skill name
web3-polymarket- Repository
- Polymarket/agent-skills
- Repo updated
- 19 February 2026
FAQ
What does the Web3 Polymarket skill do?
Polymarket integration for prediction market trading on Polygon. Covers authentication (L1 EIP-712, L2 HMAC-SHA256, builder headers), order placement (GTC/GTD/FOK/FAK, batch, post-only, heartbeat), market data (Gamma API, Data API, orderbook, subgraph), WebSocket streaming (market/user/sports channels), CTF operations (split, merge, redeem, negative risk), bridge (deposits, withdrawals, multi-chain), and gasless relayer transactions. Use when building AI agents, autonomous market makers, prediction market UIs, or any application integrating with Polymarket on Polygon.
How do I install the Web3 Polymarket skill?
skills CLI (Claude Code, Cursor, Codex and more): npx skills add Polymarket/agent-skills --skill web3-polymarket. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.
Is Web3 Polymarket popular?
It lives in Polymarket/agent-skills, which has 194 GitHub stars and 28 forks.
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