How does ArcGIS MCP Bridge compare to other ArcGIS MCP servers?
It offers 100 tools versus ~15 or ~10 in alternatives, uses deterministic `uv.lock` dependency sync, stdio
ArcGIS MCP Bridge
@muend
Basic information
About ArcGIS MCP Bridge
Secure local-first MCP server exposing 100 ArcGIS Pro / ArcPy geoprocessing tools to LLM agents. Two-process architecture, PathGuard filesystem sandboxing, and confirmation gates for destructive operations. Real geoprocessing requires local Windows + licensed ArcGIS Pro; cloud/co
ArcGIS MCP Bridge config
Add this server to your MCP-compatible client using the configuration below.
{
"mcpServers": {
"arcgis-mcp-bridge": {
"command": "arcgis-mcp-server",
"env": {
"ARCPY_PYTHON_PATH": "C:\\path\\to\\arcgis-mcp-env\\python.exe",
"ARCGIS_MCP_ALLOWED_ROOTS": "C:\\GIS\\Data",
"ARCGIS_MCP_MAX_WORKERS": "2"
}
}
}
}ArcGIS MCP Bridge tools
Tool list not available yet
This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.
We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.
Overview
What is ArcGIS MCP Bridge?
A secure, local-first, asynchronous MCP server exposing ArcGIS Pro’s ArcPy engine to Claude Desktop and other MCP hosts over stdio JSON-RPC. It provides 100 declarative geoprocessing tools across 10 verticals with a two-process isolation architecture that keeps the MCP protocol layer separate from the licensed ArcPy runtime.
How to use ArcGIS MCP Bridge?
Install the package via pip install arcgis-mcp-bridge or uv pip install arcgis-mcp-bridge. Set the required ARCPY_PYTHON_PATH environment variable to the licensed worker interpreter, optionally configure ARCGIS_MCP_ALLOWED_ROOTS and other settings, then add the server to your Claude Desktop configuration with the command arcgis-mcp-server. After restart, call health_check first to verify the full pipeline.
Key features of ArcGIS MCP Bridge
- 100 declarative geoprocessing tools across 10 verticals
- Two-process architecture isolating arcpy from the MCP server
- PathGuard sandbox enforcing read/write boundaries on filesystem access
- Destructive mutation safety floor requiring explicit confirm tokens
- Sketch-to-GIS pipeline for hand-drawn polygon digitization
- 81 unit tests with mocked arcpy for CI verification
Use cases of ArcGIS MCP Bridge
- Buffer parcels, dissolve layers, or run kernel density from natural language prompts
- List, describe, and manage feature classes in enterprise or file geodatabases
- Calculate slope, aspect, and hillshade from DEM rasters
- Find nearest facilities or compute OD cost matrices using network analysis
- Convert hand-drawn sketch to a GIS feature class via the vision analytics pipeline
Frequently asked questions
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