A Model Context Protocol (MCP) server that provides tools for interacting with the Polygon.io API for market data.
Polygon MCP Server is an MCP project maintained in the jwaresolutions/polygon-mcp-server repository. The maintainer describes its purpose as “A Model Context Protocol (MCP) server that provides tools for interacting with the Polygon.io API for market data”. Read the project documentation for the complete scope.
The project provides a local client configuration using node. Follow the repository’s build and installation steps before copying it, and replace example paths with the paths on your own computer.
The example declares POLYGON_API_KEY. Secret-looking values have been replaced with placeholders. Required and optional labels are shown only when the documentation states them.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
{
"mcpServers": {
"polygon": {
"command": "node",
"args": [
"/path/to/polygon-server/build/index.js"
],
"env": {
"POLYGON_API_KEY": "YOUR_POLYGON_API_KEY"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
| Variable | Description | Required |
|---|---|---|
| POLYGON_API_KEY | Declared in the maintainer’s client configuration. | Check documentation |
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