UK administrative boundary data from OS Boundary Line: name search, point lookup, GeoJSON geometries
Connect Remote server
claude mcp add --transport http boundr https://mcp.boundr.dev/mcp
{
"mcpServers": {
"boundr": {
"url": "https://mcp.boundr.dev/mcp"
}
}
}
{
"servers": {
"boundr": {
"type": "http",
"url": "https://mcp.boundr.dev/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://mcp.boundr.dev/mcp
Tools 7 found in our last check
list_boundary_type_codesReturns every valid UK boundary type code mapped to its human-readable label. Call this before using any tool that accepts a `boundary_type` or `boundary_types` argument so you know which codes are legal. Passing an unlisted code to another tool raises a ValueError. Boundary typ…
search_boundaries_by_nameSearch for UK administrative boundaries by name (case-insensitive partial match). Use this to discover boundaries when you have a place name but not a code. Returns lightweight metadata only — no geometry. If you need to display or analyse the boundary shape, call get_boundary_g…
find_boundaries_at_pointFind all UK administrative boundaries that geographically contain a coordinate point. Use this to answer "what county/borough/ward is this location in?" for a latitude/longitude. Returns lightweight metadata only — no geometry. If you need to display a boundary shape, call get_b…
get_boundary_by_codeLook up metadata for a single UK boundary by its ONS census code. No geometry. Use this when you already have a census code (e.g. from search_boundaries_by_name() or find_boundaries_at_point()) and need structured metadata such as area size or type label. If you also need the bo…
get_boundary_geojson_by_codeFetch the full GeoJSON geometry for a UK boundary by its ONS census code. Returns a GeoJSON Feature object (WGS-84 / EPSG:4326) suitable for rendering on a map or performing geometric analysis. The geometry can be large — county and ceremonial county polygons are especially heav…
get_boundary_geojson_simplifiedFetch simplified GeoJSON for a boundary by its ONS census code. Safe to embed directly in generated HTML map files. At the default tolerance (0.0001°) a constituency polygon shrinks from ~4,000 vertices to ~200–400 with no visible difference at normal map zoom levels. Prefer thi…
get_boundary_bboxGet the bounding box and centroid for a boundary by its ONS census code. Returns min_lat, max_lat, min_lng, max_lng, centroid_lat, centroid_lng. Pass the bbox values directly to Knotsure's sightings_in_bbox() or geographic_summary(). Much cheaper than get_boundary_geojson_by_cod…
Details
| Endpoint | https://mcp.boundr.dev/mcp (Streamable HTTP) |
| First published | 19 Jul 2026 |
| Last updated | 19 Jul 2026 |
| Registry name | io.github.danielinniss/boundr |
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