Initial commit

skills/kalshi-markets/scripts/trades.py

@@ -0,0 +1,224 @@
+#!/usr/bin/env python3
+# /// script
+# dependencies = [
+#     "httpx",
+#     "click",
+# ]
+# ///
+
+"""
+Kalshi Recent Trades Script
+
+Get recent trades across all markets or for a specific market.
+Completely self-contained with embedded HTTP client.
+
+Usage:
+    uv run trades.py
+    uv run trades.py --limit 20
+    uv run trades.py --ticker MARKET_TICKER
+    uv run trades.py --json
+"""
+
+import json
+import sys
+from datetime import datetime
+from typing import Any
+
+import click
+import httpx
+
+# Configuration
+API_BASE_URL = "https://api.elections.kalshi.com/trade-api/v2"
+API_TIMEOUT = 30.0  # seconds
+USER_AGENT = "Kalshi-CLI/1.0"
+
+
+class KalshiClient:
+    """Minimal HTTP client for Kalshi API - trades functionality"""
+
+    def __init__(self):
+        """Initialize HTTP client"""
+        self.client = httpx.Client(
+            base_url=API_BASE_URL, timeout=API_TIMEOUT, headers={"User-Agent": USER_AGENT}
+        )
+
+    def __enter__(self):
+        """Context manager entry"""
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        """Context manager exit - cleanup"""
+        self.client.close()
+
+    def get_trades(
+        self,
+        limit: int = 10,
+        ticker: str | None = None,
+        min_ts: int | None = None,
+        max_ts: int | None = None,
+        cursor: str | None = None,
+    ) -> dict[str, Any]:
+        """
+        Get recent trades.
+
+        Args:
+            limit: Number of trades to return (1-1000)
+            ticker: Filter by market ticker
+            min_ts: Filter trades after this Unix timestamp
+            max_ts: Filter trades before this Unix timestamp
+            cursor: Pagination cursor
+
+        Returns:
+            Dict with 'trades' array and optional 'cursor'
+
+        Raises:
+            Exception if API call fails
+        """
+        params = {"limit": str(limit)}
+        if ticker:
+            params["ticker"] = ticker
+        if min_ts is not None:
+            params["min_ts"] = str(min_ts)
+        if max_ts is not None:
+            params["max_ts"] = str(max_ts)
+        if cursor:
+            params["cursor"] = cursor
+
+        try:
+            response = self.client.get("/markets/trades", params=params)
+            response.raise_for_status()
+            return response.json()
+        except httpx.HTTPStatusError as e:
+            raise Exception(f"API error: {e.response.status_code} - {e.response.text}")
+        except httpx.RequestError as e:
+            raise Exception(f"Network error: {str(e)}")
+        except Exception as e:
+            raise Exception(f"Unexpected error: {str(e)}")
+
+
+def format_timestamp(timestamp_str: str) -> str:
+    """Format ISO timestamp to readable string"""
+    if not timestamp_str:
+        return "N/A"
+    try:
+        dt = datetime.fromisoformat(timestamp_str.replace("Z", "+00:00"))
+        return dt.strftime("%Y-%m-%d %H:%M:%S UTC")
+    except (ValueError, TypeError):
+        return timestamp_str
+
+
+def format_trade(trade: dict[str, Any], index: int) -> str:
+    """Format a single trade for display"""
+    ticker = trade.get("ticker", "N/A")
+    yes_price = trade.get("yes_price", 0)
+    no_price = trade.get("no_price", 0)
+    count = trade.get("count", 0)
+    created = format_timestamp(trade.get("created_time", ""))
+
+    # Determine trade side
+    if yes_price > 0:
+        price = yes_price
+        side = "YES"
+        emoji = "✅"
+    else:
+        price = no_price
+        side = "NO"
+        emoji = "❌"
+
+    lines = []
+    lines.append(f"{index}. {emoji} {ticker}")
+    lines.append(f"   {side} @ {price}¢ | {count:,} contracts")
+    lines.append(f"   {created}")
+
+    return "\n".join(lines)
+
+
+def format_trades_list(data: dict[str, Any]) -> str:
+    """
+    Format trades list for human-readable output.
+
+    Args:
+        data: Response data with trades array
+
+    Returns:
+        Formatted string for display
+    """
+    trades = data.get("trades", [])
+    cursor = data.get("cursor", "")
+
+    lines = []
+    lines.append("\n" + "=" * 60)
+    lines.append("📊 Recent Trades")
+    lines.append("=" * 60)
+    lines.append(f"Found {len(trades)} trades\n")
+
+    for i, trade in enumerate(trades, 1):
+        lines.append(format_trade(trade, i))
+        lines.append("")  # Blank line between trades
+
+    if cursor:
+        lines.append("─" * 60)
+        lines.append(f"📄 More results available. Use --cursor {cursor[:20]}...")
+
+    lines.append("=" * 60)
+    return "\n".join(lines)
+
+
+@click.command()
+@click.option("--limit", default=10, type=int, help="Number of trades to return (1-1000)")
+@click.option("--ticker", help="Filter trades for specific market ticker")
+@click.option("--min-ts", type=int, help="Filter trades after this Unix timestamp")
+@click.option("--max-ts", type=int, help="Filter trades before this Unix timestamp")
+@click.option("--cursor", help="Pagination cursor for next page")
+@click.option(
+    "--json", "output_json", is_flag=True, help="Output as JSON instead of human-readable format"
+)
+def main(
+    limit: int,
+    ticker: str | None,
+    min_ts: int | None,
+    max_ts: int | None,
+    cursor: str | None,
+    output_json: bool,
+):
+    """
+    Get recent trades across all markets or for a specific market.
+
+    Shows trade price, size, and timestamp for recent market activity.
+    No authentication required.
+    """
+    try:
+        # Validate limit
+        if limit < 1 or limit > 1000:
+            raise ValueError("Limit must be between 1 and 1000")
+
+        # Get trades from API
+        with KalshiClient() as client:
+            data = client.get_trades(
+                limit=limit, ticker=ticker, min_ts=min_ts, max_ts=max_ts, cursor=cursor
+            )
+
+        # Output results
+        if output_json:
+            # JSON output for automation/MCP
+            click.echo(json.dumps(data, indent=2))
+        else:
+            # Human-readable output
+            formatted = format_trades_list(data)
+            click.echo(formatted)
+
+        sys.exit(0)
+
+    except Exception as e:
+        if output_json:
+            # JSON error format
+            error_data = {"error": str(e)}
+            click.echo(json.dumps(error_data, indent=2))
+        else:
+            # Human-readable error
+            click.echo(f"❌ Error: {e}", err=True)
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()