Polymarket

Query and trade on Polymarket prediction markets — check odds, trending markets, search events, view order books, place trades, and manage positions. Now available to US developers.

Query Polymarket prediction markets and trade from the terminal.

Setup

Read-only commands work immediately (no install needed).

For trading, order books, and price history, install the Polymarket CLI:

bash

curl -sSL https://raw.githubusercontent.com/Polymarket/polymarket-cli/main/install.sh | sh

For trading, set up a wallet:

bash

python3 {baseDir}/scripts/polymarket.py wallet-setup

Or manually configure ~/.config/polymarket/config.json with your private key. See the CLI docs for details.

Commands

Browse Markets (no CLI needed)

bash

# Trending/active markets
python3 {baseDir}/scripts/polymarket.py trending

# Search markets
python3 {baseDir}/scripts/polymarket.py search "trump"

# Get specific event by slug
python3 {baseDir}/scripts/polymarket.py event "fed-decision-in-october"

# Get markets by category
python3 {baseDir}/scripts/polymarket.py category politics
python3 {baseDir}/scripts/polymarket.py category crypto

Order Book & Prices (CLI required, no wallet)

bash

# Order book for a token
python3 {baseDir}/scripts/polymarket.py book TOKEN_ID

# Price history
python3 {baseDir}/scripts/polymarket.py price-history TOKEN_ID --interval 1d

Wallet (CLI required)

bash

python3 {baseDir}/scripts/polymarket.py wallet-setup
python3 {baseDir}/scripts/polymarket.py wallet-show
python3 {baseDir}/scripts/polymarket.py wallet-balance
python3 {baseDir}/scripts/polymarket.py wallet-balance --token TOKEN_ID

Trading (CLI + wallet required)

All trades require --confirm to execute. Without it, the order is previewed only.

bash

# Buy limit order: 10 shares at $0.50
python3 {baseDir}/scripts/polymarket.py --confirm trade buy --token TOKEN_ID --price 0.50 --size 10

# Sell limit order
python3 {baseDir}/scripts/polymarket.py --confirm trade sell --token TOKEN_ID --price 0.70 --size 10

# Market order: buy $5 worth
python3 {baseDir}/scripts/polymarket.py --confirm trade buy --token TOKEN_ID --market-order --amount 5

Orders & Positions (CLI + wallet required)

bash

# List open orders
python3 {baseDir}/scripts/polymarket.py orders

# Cancel a specific order
python3 {baseDir}/scripts/polymarket.py --confirm orders --cancel ORDER_ID

# Cancel all orders
python3 {baseDir}/scripts/polymarket.py --confirm orders --cancel all

# View positions
python3 {baseDir}/scripts/polymarket.py positions
python3 {baseDir}/scripts/polymarket.py positions --address 0xYOUR_WALLET

Example Chat Usage

• "What are the odds Trump wins 2028?"
• "Trending on Polymarket?"
• "Search Polymarket for Bitcoin"
• "Show me the order book for [token]"
• "Buy 10 shares of YES on [market] at $0.45"
• "What are my open positions?"
• "Cancel all my orders"

⚠️ Safety Notes

• Real money. Trades execute on Polygon with real USDC. Double-check everything.
• All trades require --confirm. Without it, you get a preview only.
• The CLI is experimental. The Polymarket team warns: "Use at your own risk and do not use with large amounts of funds."
• Private key security. Your key is stored in ~/.config/polymarket/config.json. Keep it safe.
• Gas fees. On-chain operations (approvals, splits, redeems) require MATIC for gas.

API

Read-only commands use the public Gamma API (no auth):

• Base URL: https://gamma-api.polymarket.com

Trading commands wrap the official Polymarket CLI (Rust binary).