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Markets Orchestration

Bridges ESPN live schedules (NBA, NFL, MLB, NHL, WNBA, CFB, CBB) with Kalshi and Polymarket prediction markets. Before writing queries, consult references/api-reference.md for supported sport codes, command parameters, and price normalization formats.

Quick Start

sports-skills markets get_todays_markets --sport=nba
sports-skills markets search_entity --query="Lakers" --sport=nba
sports-skills markets compare_odds --sport=nba --event_id=401234567
sports-skills markets get_sport_markets --sport=nfl
sports-skills markets get_sport_schedule --sport=nba
sports-skills markets normalize_price --price=0.65 --source=polymarket
sports-skills markets evaluate_market --sport=nba --event_id=401234567

Python SDK:

from sports_skills import markets

markets.get_todays_markets(sport="nba")
markets.search_entity(query="Lakers", sport="nba")
markets.compare_odds(sport="nba", event_id="401234567")
markets.get_sport_markets(sport="nfl")
markets.get_sport_schedule(sport="nba", date="2025-02-26")
markets.normalize_price(price=0.65, source="polymarket")
markets.evaluate_market(sport="nba", event_id="401234567")

CRITICAL: Before Any Query

CRITICAL: Before calling any orchestration command, verify:

• A sport code is provided for sport-aware commands (get_todays_markets, compare_odds, get_sport_markets, evaluate_market).
• Price sources are identified correctly before normalization: espn = American odds, polymarket = 0-1 probability, kalshi = 0-100 integer.

Important Notes

• Sport context is passed through. --sport=nba maps automatically to the correct Polymarket sport code and Kalshi series ticker.
• Both platforms use sport-aware search. Polymarket uses sport → series_id; Kalshi uses KXNBA, KXNFL, etc.
• Prices are normalized. Everything is converted to implied probability for comparison.

Workflows

Today's NBA Dashboard

sports-skills markets get_todays_markets --sport=nba

Returns each game with ESPN info, DraftKings odds, matching Kalshi markets, and matching Polymarket markets.

Find Arb on a Specific Game

1. Get the ESPN event ID: get_sport_schedule --sport=nba
2. Compare odds: compare_odds --sport=nba --event_id=<id>
3. If arbitrage detected, response includes allocation percentages and guaranteed ROI.

Full Bet Evaluation

1. evaluate_market --sport=nba --event_id=<id>
2. Fetches ESPN odds and matching prediction market price
3. Pipes through betting.evaluate_bet: devig → edge → Kelly
4. Returns fair probability, edge, EV, Kelly fraction, and recommendation

Examples

Example 1: Today's games with prediction market odds User says: "What NBA games are on today and what are the prediction market odds?" Actions:

1. Call get_todays_markets(sport="nba") Result: Unified dashboard with each game's ESPN info and Kalshi/Polymarket prices

Example 2: Cross-platform team search User says: "Find me Lakers markets on Kalshi and Polymarket" Actions:

1. Call search_entity(query="Lakers", sport="nba") Result: All Lakers markets across both exchanges with prices and volume

Example 3: Odds comparison for a specific game User says: "Compare the odds for this Celtics game across ESPN and Polymarket" Actions:

1. Get event_id from get_sport_schedule(sport="nba")
2. Call compare_odds(sport="nba", event_id="<id>") Result: Normalized side-by-side comparison with automatic arbitrage check

Example 4: Full market evaluation User says: "Is there edge on the Chiefs game?" Actions:

1. Get event_id from get_sport_schedule(sport="nfl")
2. Call evaluate_market(sport="nfl", event_id="<id>") Result: Fair probability, edge percentage, EV, Kelly fraction, and bet recommendation

Example 5: Browse all markets for a sport User says: "Show me all NFL prediction markets" Actions:

1. Call get_sport_markets(sport="nfl") Result: All open NFL markets across Kalshi and Polymarket

Example 6: Price conversion User says: "Convert a Polymarket price of 65 cents to American odds" Actions:

1. Call normalize_price(price=0.65, source="polymarket") Result: Common structure with implied probability (0.65), American odds (-185.7), and decimal (1.54)

Commands that DO NOT exist — never call these

• get_odds — does not exist. Use compare_odds to see odds across sources.
• search_markets — does not exist on the markets module. Use search_entity instead.
• get_schedule — does not exist. Use get_sport_schedule instead.

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

Troubleshooting

Error: No markets returned for a sport Cause: Sport code may be missing or incorrect Solution: Check references/api-reference.md for valid sport codes. Use the exact code (e.g., nba, epl, laliga)

Error: compare_odds returns no data for an event Cause: The event_id is incorrect or the game has not been indexed yet Solution: Call get_sport_schedule(sport=...) to retrieve the correct event_id first

Error: One source shows warnings in the response Cause: Kalshi or Polymarket is temporarily unavailable Solution: The module returns partial results — use what is available. Retry the unavailable source separately using the kalshi or polymarket skill directly

Error: normalize_price returns unexpected American odds value Cause: Wrong source parameter — Kalshi uses 0-100 integers, Polymarket uses 0-1 decimals Solution: Verify the source. Kalshi price of 65 requires source="kalshi", Polymarket price of 0.65 requires source="polymarket"

Weekly Installs

75

Repository

machina-sports/…s-skills

GitHub Stars

55

First Seen

Feb 26, 2026

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