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#gis #geospatial#arcpy#esri#geoprocessing#spatial-analysis#geoai

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

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

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