GISGP MCP Server

Free remote MCP (Model Context Protocol) server for GIS/ArcGIS Online automation.

Endpoint: https://gisgp.com/mcp (Streamable HTTP, stateless, no auth for public layers)

Client config

{ "mcpServers": { "gisgp": { "url": "https://gisgp.com/mcp" } } }

Local/stdio server (open-source subset)

server.py is a self-contained, open-source MCP server (stdio transport) implementing the format-conversion and geometry tools that need no external service access — no ArcGIS Online credentials, no network calls. Build and run it with the included Dockerfile:

docker build -t gisgp-mcp .
docker run -i --rm gisgp-mcp

{ "mcpServers": { "gisgp-local": { "command": "docker", "args": ["run", "-i", "--rm", "gisgp-mcp"] } } }

The tools that inspect/query a live ArcGIS Online FeatureServer (count_features, extract_domains, check_field_types, check_service_health, rest_explore, compare_schemas, query_features, query_statistics) require a real AGOL connection and stay on the hosted remote endpoint above — they are not part of this local server.

Tools (25)

Tool	Description
convert_coordinates	Convert coordinate pairs between EPSG coordinate systems
validate_geojson	Validate GeoJSON: RFC 7946 structure, topology, WGS84 ranges
geojson_to_csv	Convert a GeoJSON FeatureCollection to CSV
count_features	Count features in an ArcGIS FeatureServer layer, optional SQL WHERE
extract_domains	Extract coded value domains from a FeatureServer layer
check_field_types	Inspect field schema of a FeatureServer layer
check_service_health	Check reachability/latency/capabilities of a FeatureServer layer
rest_explore	Enumerate layers/tables of a FeatureServer/MapServer root
compare_schemas	Diff field schemas of two FeatureServer layers
shapefile_to_geojson	Convert a Shapefile ZIP to GeoJSON
kml_to_geojson	Convert KML to GeoJSON
gpx_to_geojson	Convert GPX to GeoJSON
query_features	Fetch feature records (attributes+geometry) from a FeatureServer layer, free preview capped at 50
query_statistics	Server-side aggregate stats (sum/avg/min/max/count/stddev) on a numeric field, optional group-by — no records fetched
geometry_stats	Compute area/length/vertex count/centroid/bbox of GeoJSON (equal-area projection)
reproject_geojson	Reproject an entire GeoJSON between EPSG coordinate systems
simplify_geometry	Simplify GeoJSON geometry (Douglas–Peucker)
reduce_precision	Round GeoJSON coordinates to N decimal places (shrinks payload size)
csv_to_geojson	Convert CSV with auto-detected coordinate columns to GeoJSON
geojson_to_kml	Convert a GeoJSON FeatureCollection to KML
geojson_to_shapefile	Convert a GeoJSON FeatureCollection to a Shapefile ZIP
gpx_to_kml	Convert GPX to KML
kml_to_shapefile	Convert KML to a Shapefile ZIP
wkt_to_geojson	Convert a WKT geometry string to GeoJSON (e.g. from PostGIS)
geojson_to_wkt	Convert a GeoJSON geometry to a WKT string

Docs: https://gisgp.com/api · Homepage: https://gisgp.com