Prediction Market Data

Prediction Market Data

Query Polymarket and Kalshi prediction markets via AIsa API.

Setup

export AISA_API_KEY="your-key"

Get a key at aisa.one ($0.01/query, pay-as-you-go).

Workflow

Querying prediction market data involves these steps:

1. Search markets to find IDs (always start here)
2. Extract the ID from the response (token_id, condition_id, or market_ticker)
3. Query details using the extracted ID (price, orderbook, candlesticks, etc.)

Quick Examples

Polymarket: search → get price

# Step 1: Search — find markets and extract token_id (side_a.id or side_b.id)
python3 {baseDir}/scripts/prediction_market_client.py polymarket markets --search "election" --status open --limit 5

# Step 2: Get price using token_id from Step 1
python3 {baseDir}/scripts/prediction_market_client.py polymarket price 

Kalshi: search → get price

# Step 1: Search — find markets and extract market_ticker
python3 {baseDir}/scripts/prediction_market_client.py kalshi markets --search "fed rate" --status open --limit 5

# Step 2: Get price using market_ticker from Step 1
python3 {baseDir}/scripts/prediction_market_client.py kalshi price 

Cross-platform sports

python3 {baseDir}/scripts/prediction_market_client.py sports by-date nba --date 2025-04-01

ID Reference

Most commands need an ID from the markets response. Always search first.

Commands

Polymarket

python3 {baseDir}/scripts/prediction_market_client.py polymarket markets [--search ] [--status open|closed] [--min-volume ] [--limit ]
python3 {baseDir}/scripts/prediction_market_client.py polymarket price  [--at-time ]
python3 {baseDir}/scripts/prediction_market_client.py polymarket activity --user  [--market-slug ] [--limit ]
python3 {baseDir}/scripts/prediction_market_client.py polymarket orders [--market-slug ] [--token-id ] [--user ] [--limit ]
python3 {baseDir}/scripts/prediction_market_client.py polymarket orderbooks --token-id  [--start ] [--end ] [--limit ]
python3 {baseDir}/scripts/prediction_market_client.py polymarket candlesticks  --start  --end  [--interval 1|60|1440]
python3 {baseDir}/scripts/prediction_market_client.py polymarket positions  [--limit ]
python3 {baseDir}/scripts/prediction_market_client.py polymarket wallet (--eoa  | --proxy ) [--with-metrics]
python3 {baseDir}/scripts/prediction_market_client.py polymarket pnl  --granularity 

Kalshi

python3 {baseDir}/scripts/prediction_market_client.py kalshi markets [--search ] [--status open|closed] [--min-volume ] [--limit ]
python3 {baseDir}/scripts/prediction_market_client.py kalshi price  [--at-time ]
python3 {baseDir}/scripts/prediction_market_client.py kalshi trades [--ticker ] [--start ] [--end ] [--limit ]
python3 {baseDir}/scripts/prediction_market_client.py kalshi orderbooks --ticker  [--start ] [--end ] [--limit ]

Cross-Platform Sports

python3 {baseDir}/scripts/prediction_market_client.py sports matching (--polymarket-slug  | --kalshi-ticker )
python3 {baseDir}/scripts/prediction_market_client.py sports by-date  --date 

Sports: nfl, mlb, cfb, nba, nhl, cbb, pga, tennis.

Understanding Odds

Prices are decimals: 0.65 = 65% implied probability. "Yes" price = probability the event happens. Higher volume = more liquidity.

Security & Permissions

Requires: AISA_API_KEY environment variable.

All operations are read-only via HTTPS GET to api.aisa.one. No trades executed, no wallets connected, no personal data sent beyond the API key. Every response includes usage.cost and usage.credits_remaining.

Full docs: AIsa API Reference.