Fix new market listings by migrating to Gamma API

README.md

@@ -2,7 +2,7 @@
 # PolyMarket MCP Server
 [![smithery badge](https://smithery.ai/badge/polymarket_mcp)](https://smithery.ai/server/polymarket_mcp)
 
-A Model Context Protocol (MCP) server that provides access to prediction market data through the PolyMarket API. This server implements a standardized interface for retrieving market information, prices, and historical data from prediction markets.
+A Model Context Protocol (MCP) server that provides access to prediction market data through the PolyMarket Gamma API. This server implements a standardized interface for retrieving market information, prices, and historical data from prediction markets.
 
 <a href="https://glama.ai/mcp/servers/c255m147fd">
   <img width="380" height="200" src="https://glama.ai/mcp/servers/c255m147fd/badge" alt="PolyMarket Server MCP server" />
@@ -13,11 +13,19 @@ A Model Context Protocol (MCP) server that provides access to prediction market
 ## Features
 
 - Real-time prediction market data with current prices and probabilities
+- Direct integration with Polymarket's Gamma API for latest market listings
 - Detailed market information including categories, resolution dates, and descriptions
-- Historical price and volume data with customizable timeframes (1d, 7d, 30d, all)
-- Built-in error handling and rate limit management
+- Market filtering by status (active/closed) and sorting by volume, liquidity, etc.
+- Built-in error handling and async HTTP client for better performance
 - Clean data formatting for easy consumption
 
+## Recent Updates (v0.2.0)
+
+- **Fixed issue with fetching new market listings** - Now uses Gamma API directly instead of CLOB client
+- Added support for market sorting (by volume, liquidity, startDate, etc.)
+- Improved async handling for better performance
+- Enhanced error messages and debugging
+
 ## Installation
 
 #### Installing via Smithery
@@ -81,7 +89,7 @@ Funder=poly market wallet address
 ```
 
 After connecting Claude client with the MCP tool via json file, run the server:
-In alpha-vantage-mcp repo: `uv run src/polymarket_mcp/server.py`
+In polymark_mcp repo: `uv run src/polymarket_mcp/server.py`
 
 
 ## Available Tools
@@ -106,13 +114,15 @@ The server implements four tools:
 
 **Example Response:**
 ```
-Title: Example Market
-Category: Politics
-Status: Open
-Resolution Date: 2024-12-31
+Market ID: 0x123...
+Title: Will BTC reach $100k by end of 2025?
+Status: Active
+End Date: 2025-12-31
 Volume: $1,234,567.89
 Liquidity: $98,765.43
-Description: This is an example prediction market...
+Outcomes:
+  - Yes: $0.65 (65.0%)
+  - No: $0.35 (35.0%)
 ---
 ```
 
@@ -121,10 +131,15 @@ Description: This is an example prediction market...
 **Input Schema:**
 ```json
 {
-    "status": {
-        "type": "string",
-        "description": "Filter by market status",
-        "enum": ["open", "closed", "resolved"]
+    "active": {
+        "type": "boolean",
+        "description": "Filter by active markets",
+        "default": true
+    },
+    "closed": {
+        "type": "boolean",
+        "description": "Filter by closed markets",
+        "default": false
     },
     "limit": {
         "type": "integer",
@@ -138,6 +153,12 @@ Description: This is an example prediction market...
         "description": "Number of markets to skip (for pagination)",
         "default": 0,
         "minimum": 0
+    },
+    "order_by": {
+        "type": "string",
+        "description": "Sort markets by field",
+        "enum": ["volume", "liquidity", "startDate", "endDate", "createdAt"],
+        "default": "volume"
     }
 }
 ```
@@ -146,16 +167,18 @@ Description: This is an example prediction market...
 ```
 Available Markets:
 
-ID: market-123
+ID: 0x123...
 Title: US Presidential Election 2024
-Status: Open
+Status: Active
 Volume: $1,234,567.89
+End Date: 2024-11-05
 ---
 
-ID: market-124
+ID: 0x124...
 Title: Oscar Best Picture 2024
-Status: Open
+Status: Active
 Volume: $234,567.89
+End Date: 2024-03-10
 ---
 ```
 
@@ -173,16 +196,11 @@ Volume: $234,567.89
 
 **Example Response:**
 ```
-Current Market Prices for US Presidential Election 2024
+Current Market Prices for: US Presidential Election 2024
 
-Outcome: Democratic
-Price: $0.6500
-Probability: 65.0%
----
+Democratic: $0.65 (65.0%)
+Republican: $0.35 (35.0%)
 
-Outcome: Republican
-Price: $0.3500
-Probability: 35.0%
 ---
 ```
 
@@ -206,26 +224,27 @@ Probability: 35.0%
 
 **Example Response:**
 ```
-Historical Data for US Presidential Election 2024
-Time Period: 7d
+Historical Data for: US Presidential Election 2024
 
-Time: 2024-01-20T12:00:00Z
-Price: $0.6500
-Volume: $123,456.78
----
-
-Time: 2024-01-19T12:00:00Z
-Price: $0.6300
-Volume: $98,765.43
+Note: Detailed historical data requires additional API access
+Current Volume: $1,234,567.89
+Created: 2024-01-01T00:00:00Z
 ---
 ```
 
+## API Changes
+
+### Version 0.2.0
+- Migrated from CLOB client's `get_markets()` to direct Gamma API calls
+- Added async HTTP client for better performance
+- Updated response parsing to match Gamma API structure
+- Added sorting and filtering parameters for market listings
+
 ## Error Handling
 
 The server includes comprehensive error handling for various scenarios:
 
-- Rate limiting (429 errors)
-- Invalid API keys (403 errors)
+- API connection errors
 - Invalid market IDs (404 errors)
 - Network connectivity issues
 - API timeout conditions (30-second timeout)
@@ -239,7 +258,19 @@ Error messages are returned in a clear, human-readable format.
 - httpx>=0.24.0
 - mcp-core
 - python-dotenv>=1.0.0
+- py-clob-client (for trading operations, not used for market data)
 
 ## Contributing
 
-Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.
+Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.
+
+## Changelog
+
+### v0.2.0 (2025-06-05)
+- Fixed issue with fetching new market listings
+- Migrated to Gamma API for market data
+- Added market sorting options
+- Improved async performance
+
+### v0.1.0
+- Initial release with CLOB client integration

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "polymarket_mcp"
-version = "0.1.0"
+version = "0.2.0"
 description = "MCP Server for PolyMarket API"
 requires-python = ">=3.10"
 dependencies = [

src/polymarket_mcp/__init__.py

@@ -3,4 +3,13 @@
 An MCP server implementation for interacting with the PolyMarket API.
 """
 
-__version__ = "0.1.0"
+import asyncio
+from .server import main as async_main
+
+__version__ = "0.2.0"
+
+def main():
+    """Entry point wrapper that runs the async main function."""
+    asyncio.run(async_main())
+
+__all__ = ["main", "async_main"]