osm-mcp
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| OSM_MCP_DSN | Yes | Required libpq connection string for the PostGIS database. Use a read-only DB role. | |
| OSM_MCP_HOST | No | Host for HTTP/SSE transport (default 127.0.0.1). | 127.0.0.1 |
| OSM_MCP_PORT | No | Port for HTTP/SSE transport (default 8000). | 8000 |
| OSM_MCP_SRID | No | SRID of the 'way' geometry column (default 3857). | 3857 |
| OSM_MCP_MAX_ROWS | No | Row cap applied to result sets (default 200). | 200 |
| OSM_MCP_TRANSPORT | No | Transport type: stdio, streamable-http, http, or sse. Default is stdio. | stdio |
| OSM_MCP_STATEMENT_TIMEOUT_MS | No | Per-query statement timeout in milliseconds (default 5000). | 5000 |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": false
} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| describe_schemaA | List available planet_osm_* tables, their tag columns, and geometry SRID. |
| list_categoriesC | Top values (with counts) of key OSM tags, to discover filters. |
| search_featuresA | Search OSM features by name (ILIKE) and/or tag filters, optional bbox. |
| find_nearbyB | Features within radius_m meters of (lat, lon), ordered by distance. |
| features_in_areaC | Features inside a bbox [min_lon,min_lat,max_lon,max_lat] or a named/osm_id polygon. |
| count_by_categoryB | Count features per value of a tag (default amenity), optionally within an area. |
| run_sqlC | Run a single read-only SELECT/WITH query against the OSM tables. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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