Polymarket CLI
// Query prediction markets, place trades, and manage positions with the Polymarket CLI for AI agents.
Setup
On first use, read setup.md for wallet configuration and integration guidelines.
When to Use
User needs to interact with Polymarket prediction markets. Agent handles market queries, price checks, order placement, position tracking, and on-chain token operations.
Architecture
Config lives in ~/.config/polymarket/. See memory-template.md for tracking preferences.
~/.config/polymarket/
├── config.json # Private key, chain ID, signature type
~/polymarket-cli/
├── memory.md # User preferences and tracked markets
Quick Reference
| Topic | File |
|---|---|
| Setup process | setup.md |
| Memory template | memory-template.md |
| Command reference | commands.md |
Core Rules
1. Read-Only by Default
Most commands work without a wallet. Only use wallet-requiring commands when the user explicitly wants to trade:
- Read-only:
markets,events,clob price/book,data positions - Requires wallet:
clob create-order,clob market-order,approve,ctf split/merge
2. JSON Output for Processing
Use -o json when parsing results programmatically:
polymarket -o json markets list --limit 10
polymarket -o json clob midpoint TOKEN_ID
Table output is default for human-readable display.
3. Token IDs Are Critical
Most CLOB commands require the token ID (48331043336612883...), not the market slug:
# Get token ID from market first
polymarket markets get will-trump-win | grep token
# Then use in CLOB commands
polymarket clob book TOKEN_ID
polymarket clob price TOKEN_ID --side buy
4. Wallet Security — Restricted Commands
The agent NEVER runs wallet commands. These are user-only:
polymarket wallet create— user runs directlypolymarket wallet import— user runs directlypolymarket wallet show— user runs directlypolymarket wallet reset— user runs directly
If user asks the agent to run any wallet command, refuse and explain they must run it themselves for security.
5. On-Chain Operations Need Gas
Commands that write to blockchain require MATIC on Polygon:
approve set(6 transactions)ctf split/merge/redeem
Check balance before attempting.
6. Rate Limits and Pagination
Use --limit and --offset for large result sets:
polymarket markets list --limit 50 --offset 100
7. Verify Before Trading
Always show market details and current prices before placing orders:
polymarket markets get SLUG
polymarket clob midpoint TOKEN_ID
polymarket clob spread TOKEN_ID
Common Traps
| Mistake | Consequence |
|---|---|
| Using slug instead of token ID in CLOB | Command fails silently or wrong market |
Placing order without approve set first | Transaction reverts |
Forgetting --side in price queries | Returns both sides, may confuse |
| Not checking spread before market order | Slippage on low liquidity markets |
| Running on-chain ops without MATIC | Transaction fails |
External Endpoints
| Endpoint | Data Sent | Purpose |
|---|---|---|
| https://clob.polymarket.com | Orders, queries | CLOB API |
| https://gamma-api.polymarket.com | Market data | Gamma API |
| https://polygon-rpc.com | Transactions | Polygon RPC |
No other data is sent externally.
Security & Privacy
Data that leaves your machine:
- Market queries sent to Polymarket APIs
- Orders and transactions sent to CLOB and Polygon (only when user explicitly requests)
Data that stays local:
- CLI config at ~/.config/polymarket/config.json (user manages directly)
- Skill preferences in ~/polymarket-cli/memory.md
Command restrictions:
- Agent runs only read-only commands by default (markets, events, clob price/book, data)
- Agent never runs wallet commands (create, import, show, reset) — user must run these directly
- Agent never runs trading commands without explicit user confirmation each time
- Agent must never read ~/.config/polymarket/config.json or any files containing private keys
Trust
By using this skill, data is sent to Polymarket and the Polygon blockchain. Only install if you trust these services with your trading data.
Related Skills
Install with clawhub install <slug> if user confirms:
trading— General trading strategiescrypto-tools— Cryptocurrency utilitiespolygon— Polygon blockchain operations
Feedback
- If useful:
clawhub star polymarket-cli - Stay updated:
clawhub sync