GISGP GIS Tools

Official25 toolsLive

by uponex

GIS tools for AI agents: 24 tools — EPSG conversion, GeoJSON ops, ArcGIS inspection.

Captured live from the server via tools/list.

convert_coordinates

Convert coordinate pairs between EPSG coordinate systems (max 1000 points). points: [[x, y], ...] in from_epsg axis order (lon/lat for EPSG:4326). Returns JSON: {"points": [[x, y], ...], "from_epsg": ..., "to_epsg": ...}.

Parameters3

points	array	required
from_epsg	integer	required
to_epsg	integer	required

Raw schema

{
  "type": "object",
  "properties": {
    "points": {
      "items": {
        "items": {
          "type": "number"
        },
        "type": "array"
      },
      "title": "Points",
      "type": "array"
    },
    "from_epsg": {
      "title": "From Epsg",
      "type": "integer"
    },
    "to_epsg": {
      "title": "To Epsg",
      "type": "integer"
    }
  },
  "required": [
    "points",
    "from_epsg",
    "to_epsg"
  ],
  "title": "convert_coordinatesArguments"
}

validate_geojson

Validate GeoJSON (RFC 7946 structure, topology, WGS84 coordinate ranges). Returns a JSON report: {valid, errors, warnings, stats}.

Parameters1

geojson

string

required

Raw schema

{
  "type": "object",
  "properties": {
    "geojson": {
      "title": "Geojson",
      "type": "string"
    }
  },
  "required": [
    "geojson"
  ],
  "title": "validate_geojsonArguments"
}

geojson_to_csv

Convert a GeoJSON FeatureCollection to CSV (feature properties + geometry column).

Parameters1

geojson

string

required

Raw schema

{
  "type": "object",
  "properties": {
    "geojson": {
      "title": "Geojson",
      "type": "string"
    }
  },
  "required": [
    "geojson"
  ],
  "title": "geojson_to_csvArguments"
}

count_features

Count features in an ArcGIS FeatureServer layer, optionally filtered by a WHERE clause. service_url: full layer URL ending in /FeatureServer/<n>. token: only for private layers. Returns JSON: {"ok": true, "count": ..., "name": ..., "geometry": ...}.

Parameters3

service_url	string	required
where	string	optional
token	string	optional

Raw schema

{
  "type": "object",
  "properties": {
    "service_url": {
      "title": "Service Url",
      "type": "string"
    },
    "where": {
      "default": "1=1",
      "title": "Where",
      "type": "string"
    },
    "token": {
      "default": "",
      "title": "Token",
      "type": "string"
    }
  },
  "required": [
    "service_url"
  ],
  "title": "count_featuresArguments"
}

extract_domains

Extract coded value domains from an ArcGIS FeatureServer layer. Returns JSON: {"layer_name": ..., "domains": {field: {name, field_alias, codes}}}.

Parameters2

service_url	string	required
token	string	optional

Raw schema

{
  "type": "object",
  "properties": {
    "service_url": {
      "title": "Service Url",
      "type": "string"
    },
    "token": {
      "default": "",
      "title": "Token",
      "type": "string"
    }
  },
  "required": [
    "service_url"
  ],
  "title": "extract_domainsArguments"
}

check_field_types

Inspect the field schema of an ArcGIS FeatureServer layer. Returns JSON: {layer_name, geometry_type, fields:[{name, alias, type, length, nullable, has_domain}]} — useful before importing/mapping data.

Parameters2

service_url	string	required
token	string	optional

Raw schema

{
  "type": "object",
  "properties": {
    "service_url": {
      "title": "Service Url",
      "type": "string"
    },
    "token": {
      "default": "",
      "title": "Token",
      "type": "string"
    }
  },
  "required": [
    "service_url"
  ],
  "title": "check_field_typesArguments"
}

check_service_health

Check whether an ArcGIS FeatureServer layer is reachable and responsive. Returns JSON: {ok, ms (latency), name, geometry_type, field_count, record_count, capabilities, max_record_count}.

Parameters2

service_url	string	required
token	string	optional

Raw schema

{
  "type": "object",
  "properties": {
    "service_url": {
      "title": "Service Url",
      "type": "string"
    },
    "token": {
      "default": "",
      "title": "Token",
      "type": "string"
    }
  },
  "required": [
    "service_url"
  ],
  "title": "check_service_healthArguments"
}

rest_explore

List the layers and tables of an ArcGIS FeatureServer/MapServer root. Point at a service root to enumerate its layers/tables, or at a single layer URL to describe it. Returns JSON: {is_server, layers:[{id, name, type}]}.

Parameters2

service_url	string	required
token	string	optional

Raw schema

{
  "type": "object",
  "properties": {
    "service_url": {
      "title": "Service Url",
      "type": "string"
    },
    "token": {
      "default": "",
      "title": "Token",
      "type": "string"
    }
  },
  "required": [
    "service_url"
  ],
  "title": "rest_exploreArguments"
}

compare_schemas

Compare the field schemas of two ArcGIS FeatureServer layers. Returns JSON diff: {added, removed, changed:[{field, diffs}], same, geometry_match, identical} — useful for QA before an import or migration.

Parameters4

service_url_a	string	required
service_url_b	string	required
token_a	string	optional
token_b	string	optional

Raw schema

{
  "type": "object",
  "properties": {
    "service_url_a": {
      "title": "Service Url A",
      "type": "string"
    },
    "service_url_b": {
      "title": "Service Url B",
      "type": "string"
    },
    "token_a": {
      "default": "",
      "title": "Token A",
      "type": "string"
    },
    "token_b": {
      "default": "",
      "title": "Token B",
      "type": "string"
    }
  },
  "required": [
    "service_url_a",
    "service_url_b"
  ],
  "title": "compare_schemasArguments"
}

shapefile_to_geojson

Convert a Shapefile ZIP (base64-encoded .zip with .shp/.dbf/.shx[/.prj]) to a GeoJSON FeatureCollection. Reprojects to WGS84 if a .prj says otherwise. Returns JSON: {geojson: {...}, reprojection_notice: str|null}.

Parameters1

shapefile_zip_base64

string

required

Raw schema

{
  "type": "object",
  "properties": {
    "shapefile_zip_base64": {
      "title": "Shapefile Zip Base64",
      "type": "string"
    }
  },
  "required": [
    "shapefile_zip_base64"
  ],
  "title": "shapefile_to_geojsonArguments"
}

kml_to_geojson

Convert KML (2.0–2.2) to a GeoJSON FeatureCollection. Returns the GeoJSON FeatureCollection as a JSON string.

Parameters1

kml

string

required

Raw schema

{
  "type": "object",
  "properties": {
    "kml": {
      "title": "Kml",
      "type": "string"
    }
  },
  "required": [
    "kml"
  ],
  "title": "kml_to_geojsonArguments"
}

gpx_to_geojson

Convert GPX (waypoints, tracks, routes) to a GeoJSON FeatureCollection. Returns the GeoJSON FeatureCollection as a JSON string.

Parameters1

gpx

string

required

Raw schema

{
  "type": "object",
  "properties": {
    "gpx": {
      "title": "Gpx",
      "type": "string"
    }
  },
  "required": [
    "gpx"
  ],
  "title": "gpx_to_geojsonArguments"
}

query_features

Fetch actual feature records (attributes + geometry) from a FeatureServer layer. Free preview capped at 50 records (WHERE filter + chosen fields). Returns JSON: {returned, total, truncated, geojson, note}. Full unlimited export is a paid operation.

Parameters5

service_url	string	required
where	string	optional
out_fields	string	optional
token	string	optional
limit	integer	optional

Raw schema

{
  "type": "object",
  "properties": {
    "service_url": {
      "title": "Service Url",
      "type": "string"
    },
    "where": {
      "default": "1=1",
      "title": "Where",
      "type": "string"
    },
    "out_fields": {
      "default": "*",
      "title": "Out Fields",
      "type": "string"
    },
    "token": {
      "default": "",
      "title": "Token",
      "type": "string"
    },
    "limit": {
      "default": 50,
      "title": "Limit",
      "type": "integer"
    }
  },
  "required": [
    "service_url"
  ],
  "title": "query_featuresArguments"
}

query_statistics

Server-side aggregate stats on a numeric field of a FeatureServer layer. No records fetched — AGOL computes sum/avg/min/max/count (also stddev/var). Optional WHERE filter and group_by field. Returns JSON: {field, results:[...]}. Cheap way to answer "what's the average/total of field X" without an export.

Parameters6

service_url	string	required
field	string	required
stats	string	optional
where	string	optional
group_by	string	optional
token	string	optional

Raw schema

{
  "type": "object",
  "properties": {
    "service_url": {
      "title": "Service Url",
      "type": "string"
    },
    "field": {
      "title": "Field",
      "type": "string"
    },
    "stats": {
      "default": "sum,avg,min,max,count",
      "title": "Stats",
      "type": "string"
    },
    "where": {
      "default": "1=1",
      "title": "Where",
      "type": "string"
    },
    "group_by": {
      "default": "",
      "title": "Group By",
      "type": "string"
    },
    "token": {
      "default": "",
      "title": "Token",
      "type": "string"
    }
  },
  "required": [
    "service_url",
    "field"
  ],
  "title": "query_statisticsArguments"
}

geometry_stats

Compute area (m²/km²), length (m/km), vertex count, centroid and bbox of GeoJSON. Metric measurements use an equal-area projection so area/length are real metres.

Parameters1

geojson

string

required

Raw schema

{
  "type": "object",
  "properties": {
    "geojson": {
      "title": "Geojson",
      "type": "string"
    }
  },
  "required": [
    "geojson"
  ],
  "title": "geometry_statsArguments"
}

reproject_geojson

Reproject an entire GeoJSON between EPSG coordinate systems (all geometry types).

Parameters3

geojson	string	required
from_epsg	integer	required
to_epsg	integer	required

Raw schema

{
  "type": "object",
  "properties": {
    "geojson": {
      "title": "Geojson",
      "type": "string"
    },
    "from_epsg": {
      "title": "From Epsg",
      "type": "integer"
    },
    "to_epsg": {
      "title": "To Epsg",
      "type": "integer"
    }
  },
  "required": [
    "geojson",
    "from_epsg",
    "to_epsg"
  ],
  "title": "reproject_geojsonArguments"
}

simplify_geometry

Simplify GeoJSON geometry (Douglas–Peucker, tolerance in degrees). Lower = more detail.

Parameters2

geojson	string	required
tolerance	number	optional

Raw schema

{
  "type": "object",
  "properties": {
    "geojson": {
      "title": "Geojson",
      "type": "string"
    },
    "tolerance": {
      "default": 0.001,
      "title": "Tolerance",
      "type": "number"
    }
  },
  "required": [
    "geojson"
  ],
  "title": "simplify_geometryArguments"
}

reduce_precision

Round every coordinate to N decimal places — shrinks GeoJSON payload size.

Parameters2

geojson	string	required
decimals	integer	optional

Raw schema

{
  "type": "object",
  "properties": {
    "geojson": {
      "title": "Geojson",
      "type": "string"
    },
    "decimals": {
      "default": 6,
      "title": "Decimals",
      "type": "integer"
    }
  },
  "required": [
    "geojson"
  ],
  "title": "reduce_precisionArguments"
}

csv_to_geojson

Convert CSV with coordinate columns (auto-detected) to a GeoJSON FeatureCollection.

Parameters1

csv

string

required

Raw schema

{
  "type": "object",
  "properties": {
    "csv": {
      "title": "Csv",
      "type": "string"
    }
  },
  "required": [
    "csv"
  ],
  "title": "csv_to_geojsonArguments"
}

geojson_to_kml

Convert a GeoJSON FeatureCollection to KML.

Parameters1

geojson

string

required

Raw schema

{
  "type": "object",
  "properties": {
    "geojson": {
      "title": "Geojson",
      "type": "string"
    }
  },
  "required": [
    "geojson"
  ],
  "title": "geojson_to_kmlArguments"
}

geojson_to_shapefile

Convert a GeoJSON FeatureCollection to a Shapefile ZIP (base64-encoded). Returns JSON: {shapefile_zip_base64, warnings}.

Parameters1

geojson

string

required

Raw schema

{
  "type": "object",
  "properties": {
    "geojson": {
      "title": "Geojson",
      "type": "string"
    }
  },
  "required": [
    "geojson"
  ],
  "title": "geojson_to_shapefileArguments"
}

gpx_to_kml

Convert GPX (waypoints, tracks, routes) to KML.

Parameters1

gpx

string

required

Raw schema

{
  "type": "object",
  "properties": {
    "gpx": {
      "title": "Gpx",
      "type": "string"
    }
  },
  "required": [
    "gpx"
  ],
  "title": "gpx_to_kmlArguments"
}

kml_to_shapefile

Convert KML to a Shapefile ZIP (base64-encoded). Returns JSON: {shapefile_zip_base64}.

Parameters1

kml

string

required

Raw schema

{
  "type": "object",
  "properties": {
    "kml": {
      "title": "Kml",
      "type": "string"
    }
  },
  "required": [
    "kml"
  ],
  "title": "kml_to_shapefileArguments"
}

wkt_to_geojson

Convert a WKT geometry string to a GeoJSON geometry (e.g. from PostGIS).

Parameters1

wkt

string

required

Raw schema

{
  "type": "object",
  "properties": {
    "wkt": {
      "title": "Wkt",
      "type": "string"
    }
  },
  "required": [
    "wkt"
  ],
  "title": "wkt_to_geojsonArguments"
}

geojson_to_wkt

Convert a GeoJSON geometry (or a Feature's geometry) to a WKT string.

Parameters1

geojson

string

required

Raw schema

{
  "type": "object",
  "properties": {
    "geojson": {
      "title": "Geojson",
      "type": "string"
    }
  },
  "required": [
    "geojson"
  ],
  "title": "geojson_to_wktArguments"
}

README.md1 KBView on GitHub

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

json

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

Tools (12)

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

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

Install

Tools (25)

convert_coordinatesvalidate_geojsongeojson_to_csvcount_featuresextract_domainscheck_field_typescheck_service_healthrest_explore

Remote endpoint

Streamable HTTP

Hosted server - connect over the network, no local install.

url

https://gisgp.com/mcp

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "gisgp": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://gisgp.com/mcp"
      ]
    }
  }
}

Desktop config is stdio-only; this bridges via mcp-remote. Native remote: Settings > Connectors.