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Polymarket — Sports Prediction Markets

Before writing queries, consult references/api-reference.md for sport codes, command parameters, and price format.

Quick Start

Prefer the CLI — it avoids Python import path issues:

sports-skills polymarket search_markets --sport=nba --sports_market_types=moneyline
sports-skills polymarket get_todays_events --sport=epl
sports-skills polymarket search_markets --sport=epl --query="Leeds" --sports_market_types=moneyline
sports-skills polymarket get_sports_config

Python SDK (alternative):

from sports_skills import polymarket

polymarket.search_markets(sport='nba', sports_market_types='moneyline')
polymarket.get_todays_events(sport='epl')
polymarket.search_markets(sport='epl', query='Leeds')
polymarket.get_sports_config()

CRITICAL: Before Any Query

CRITICAL: Before calling any market endpoint, verify:

• The sport parameter is always passed to search_markets and get_todays_events for single-game markets.
• Prices are probabilities on a 0-1 scale (0.65 = 65%) — no conversion needed.
• For price/orderbook endpoints, use token_id (CLOB), not market_id (Gamma). Call get_market_details first to get clobTokenIds.

Without the sport parameter:

WRONG: search_markets(query="Leeds")           → 0 results
RIGHT: search_markets(sport='epl', query='Leeds') → returns all Leeds markets

Prerequisites

Core commands (no dependencies, no API keys): All read commands work out of the box.

Trading commands require py_clob_client:

pip install sports-skills[polymarket]

Additionally requires a configured wallet:

export POLYMARKET_PRIVATE_KEY=0x...

Workflows

Find Single-Game Markets for a Sport

1. search_markets --sport=nba (or epl, nfl, bun, etc.)
2. Each market includes outcomes with prices (price = probability).
3. For detailed prices, use get_market_prices --token_id=<clob_token_id>.

Today's Events for a League

1. get_todays_events --sport=epl — returns events sorted by start date.
2. Each event includes nested markets (moneyline, spreads, totals, props).
3. Pick a market, get clob_token_id from outcomes, then get_market_prices.

Live Odds Check

1. search_markets --sport=nba --query="Lakers" --sports_market_types=moneyline
2. get_market_prices --token_id=<id> for live CLOB prices.
3. Present probabilities.

Price Trend Analysis

1. Find market via search_markets --sport=nba.
2. Get clob_token_id from the outcomes.
3. get_price_history --token_id=<id> --interval=1w
4. Present price movement.

Commands

See references/api-reference.md for full parameter lists and return shapes.

Examples

Example 1: Tonight's NBA favorites User says: "Who's favored in tonight's NBA games?" Actions:

1. Call search_markets(sport='nba', sports_market_types='moneyline') Result: Each matchup with implied win probabilities (price = probability)

Example 2: Team-specific odds User says: "Show me Leeds vs Man City odds" Actions:

1. Call search_markets(sport='epl', query='Leeds', sports_market_types='moneyline') Result: Leeds moneyline market with outcome prices

Example 3: Today's EPL events User says: "What EPL matches are on today?" Actions:

1. Call get_todays_events(sport='epl') Result: Today's EPL events with nested markets (moneyline, spreads, totals, props)

Example 4: League winner futures User says: "Who will win the Premier League?" Actions:

1. Call search_markets(query='Premier League') — returns futures
2. Sort results by Yes outcome price descending Result: Top contenders ranked by win probability

Example 5: Bundesliga odds User says: "Show me Bundesliga odds for Dortmund vs Bayern" Actions:

1. Call search_markets(sport='bun', query='Dortmund', sports_market_types='moneyline') Result: Dortmund/Bayern moneyline market with outcome prices

Commands that DO NOT exist — never call these

• cli_search_markets — does not exist. Use search_markets instead.
• cli_sports_list — does not exist. Use get_sports_config instead.
• get_market_odds / get_odds / get_current_odds — prices ARE probabilities. Use get_market_prices(token_id=...).
• get_implied_probability — the price IS the implied probability.
• get_markets — use (browse) or (search).

If a command is not listed in references/api-reference.md, it does not exist.

Troubleshooting

Error: search_markets returns 0 results Cause: The sport parameter is missing — without it, search only checks high-volume markets and misses single-game events Solution: Always pass sport='<code>' to search_markets. Check references/api-reference.md for valid sport codes

Error: get_market_prices fails or returns wrong data Cause: market_id (Gamma) was used instead of token_id (CLOB) Solution: Call get_market_details(market_id=<id>) first to get the CLOB clobTokenIds, then use those with get_market_prices

Error: Prices seem stale or unchanged Cause: Low-liquidity market — may have wide spreads and infrequent trades Solution: Check get_last_trade_price(token_id=<id>) for the most recent actual trade price

Error: Trading commands fail Cause: py_clob_client is not installed or wallet is not configured Solution: Run pip install sports-skills[polymarket] and set POLYMARKET_PRIVATE_KEY environment variable

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Repository

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First Seen

Feb 16, 2026

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