Kalshi API Integration
Authentication
Credentials stored in kalshkey (never commit):
code
API_KEY_ID PRIVATE_KEY_PEM_CONTENT
Load with:
python
with open("kalshkey") as f:
api_key_id = f.readline().strip()
private_key = f.read()
API Client Setup
python
from kalshi_python import Configuration, ApiClient, MarketsApi config = Configuration(host="https://api.elections.kalshi.com/trade-api/v2") config.api_key['api_key_id'] = api_key_id config.api_key['private_key'] = private_key_pem client = ApiClient(configuration=config) markets_api = MarketsApi(client)
Market Ticker Format
Pattern: SERIES-YYMMDD-AWAYHOME-OUTCOME
Examples:
- •
NBAWIN-250115-LAKBOS-LAK- Lakers to beat Celtics - •
NHLWIN-250115-TORBOS-TOR- Maple Leafs to beat Bruins
Parsing Tickers
python
parts = ticker.split('-')
# parts[0]: Series (NBAWIN, NHLWIN)
# parts[1]: Date (YYMMDD)
# parts[2]: Teams (AWAYHOME combined)
# parts[3]: Winner team code
Team Name Resolution
Use NamingResolver for consistent team names:
python
from naming_resolver import NamingResolver
resolver = NamingResolver()
canonical = resolver.resolve("LAL", "nba") # → "Los Angeles Lakers"
Fetching Markets
python
def fetch_nba_markets():
"""Fetch open NBA markets from Kalshi."""
response = markets_api.get_markets(
series_ticker="NBAWIN",
status="open",
limit=100
)
return response.to_dict().get("markets", [])
Saving to Database
Always save to PostgreSQL, not JSON:
python
from db_manager import default_db
def save_to_db(sport: str, markets: list):
for market in markets:
# Parse market data
# Insert into game_odds table
default_db.execute("""
INSERT INTO game_odds (game_id, source, yes_price, no_price, ...)
VALUES (:game_id, 'kalshi', :yes_price, :no_price, ...)
ON CONFLICT (game_id, source) DO UPDATE SET ...
""", params)
Bet Placement
python
from kalshi_betting import place_bet
result = place_bet(
ticker="NBAWIN-250115-LAKBOS-LAK",
side="yes", # or "no"
amount=10.00,
limit_price=0.65 # Max price willing to pay
)
Files to Reference
- •
plugins/kalshi_markets.py- Market fetching - •
plugins/kalshi_betting.py- Bet placement - •
plugins/naming_resolver.py- Team name mapping