GISGP GIS Tools
Free remote MCP server for GIS/ArcGIS Online automation — coordinate/EPSG conversion, GeoJSON validation and geometry operations, ArcGIS FeatureServer inspection (feature count/query, schema, health check), and Shapefile/KML/GPX/WKT format conversion. Works with public ArcGIS layers without a token;
README
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
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