io.github.cyanheads/openstreetmap-mcp-server

io.github.cyanheads/openstreetmap-mcp-serverv0.4.2Maps & Location

Geocode, reverse geocode, and run Overpass spatial queries on OpenStreetMap data.

The current version, v0.4.2, was published to the official MCP registry on 2026-08-25. It is distributed as @cyanheads/openstreetmap-mcp-server on npm and as a hosted remote over streamable-http, filed under Maps & Location by this index, and declares 11 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; the index's current counts put this record in context.

In-path gate · all MCP tools

Using io.github.cyanheads/openstreetmap-mcp-server in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire

Auditable install path →Watch it hold a drift →

Trust verdict · v1 advisory · method

REVIEWstatus: PARTIALfresh until 2026-09-03 20:32 UTC

screened 2026-07-06tier: scannedgranularity: description-levelsource: registry

Semantic screen found no manipulation pattern in the description. Conformance probe not yet run.

mcpindex.integrity.descriptionpassINFO

evidence“Declared capabilities, no hidden instructions”via static_description

Limits of this verdict

- Semantic screen only - the deterministic conformance probe has not run on this server
- Confidence is reported but not yet calibrated (v1)
- Screen reads the tool description, not the live behavior
- advisory
- registry description only no input schema
- screen model 8b
- Still current: the description we screened is unchanged, re-checked against the registry
- The registry listing (version, packages, links) changed after this screen ran - the description we assessed did not

Semantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-08-27).

Contracts can change after screening, with no version bump. The gate pins io.github.cyanheads/openstreetmap-mcp-server’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Cite this record

People vet a server before wiring it in. One line on your project site or docs answers that with an independent record: screening verdict, registry provenance, contract drift history. It stays current as new screens and drift events land.

Markdown

[Independent trust record for io.github.cyanheads/openstreetmap-mcp-server](https://mcpindex.ai/server/io-github-cyanheads-openstreetmap-mcp-server) - screening verdict, registry provenance, and contract drift monitoring.

HTML

<a href="https://mcpindex.ai/server/io-github-cyanheads-openstreetmap-mcp-server">Independent trust record for io.github.cyanheads/openstreetmap-mcp-server</a> - screening verdict, registry provenance, and contract drift monitoring.

Embed this badge

A live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.

Markdown

[![mcpindex](https://mcpindex.ai/api/v1/badge/io-github-cyanheads-openstreetmap-mcp-server)](https://mcpindex.ai/server/io-github-cyanheads-openstreetmap-mcp-server)

HTML

<a href="https://mcpindex.ai/server/io-github-cyanheads-openstreetmap-mcp-server"><img src="https://mcpindex.ai/api/v1/badge/io-github-cyanheads-openstreetmap-mcp-server" alt="mcpindex verdict" height="20" /></a>

Environment variables

OSM_NOMINATIM_BASE_URL

Nominatim API base URL. Override to use a private or mirror instance.

OSM_USER_AGENT

User-Agent sent to Nominatim and Overpass. Required by usage policy.

OSM_OVERPASS_BASE_URL

Overpass API endpoint URL. When set, pins every query to this one endpoint and disables mirror failover. Leave unset to use OSM_OVERPASS_ENDPOINTS.

OSM_OVERPASS_ENDPOINTS

Comma-separated ordered list of Overpass endpoints. A transient failure advances to the next entry within the same tool call; a single entry means no failover. Verify a mirror's usage policy, data coverage, and freshness before adding it. Ignored when OSM_OVERPASS_BASE_URL is set.

OSM_OVERPASS_MAX_CONCURRENCY

Maximum Overpass queries submitted at once. Match the slot budget the endpoint advertises at /api/status.

MCP_LOG_LEVEL

Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').

MCP_HTTP_HOST

The hostname for the HTTP server.

MCP_HTTP_PORT

The port to run the HTTP server on.

MCP_HTTP_ENDPOINT_PATH

The endpoint path for the MCP server.

MCP_PUBLIC_URL

Public origin override for deployments behind a TLS-terminating reverse proxy (e.g. https://mcp.example.com).

MCP_AUTH_MODE

Authentication mode to use: 'none', 'jwt', or 'oauth'.

OSM_NOMINATIM_BASE_URL

Nominatim API base URL. Override to use a private or mirror instance.

OSM_USER_AGENT

User-Agent sent to Nominatim and Overpass. Required by usage policy.

OSM_OVERPASS_BASE_URL

Overpass API endpoint URL. When set, pins every query to this one endpoint and disables mirror failover. Leave unset to use OSM_OVERPASS_ENDPOINTS.

OSM_OVERPASS_ENDPOINTS

OSM_OVERPASS_MAX_CONCURRENCY

Maximum Overpass queries submitted at once. Match the slot budget the endpoint advertises at /api/status.

MCP_LOG_LEVEL

Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').

MCP quality score · maturity, not trust · methodology

freshness

completeness

installability

documentation

stability

Alternatives in Maps & Location

Arc Research

com.getarcresearch/arc-research

Commodities research MCP: knowledge graph, COT, NG storage/weather, quotes, and stories.

GribStream Weather MCP

com.gribstream/mcp

NOAA and ECMWF weather forecast MCP for discovery, validation, and GribStream OAuth queries.

io.github.cyanheads/toolkit-mcp-server

Generate IDs, QR codes, and hashes, encode values, geolocate IPs, plus gated host diagnostics.

Install this server

Remote endpoint

Streamable HTTP / SSE endpoint. Add to any MCP client that supports remote servers.

https://openstreetmap.caseyjhand.com/mcp

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "openstreetmap-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "@cyanheads/openstreetmap-mcp-server"
      ],
      "env": {
        "OSM_NOMINATIM_BASE_URL": "https://nominatim.openstreetmap.org",
        "OSM_USER_AGENT": "openstreetmap-mcp-server/0.4.2",
        "OSM_OVERPASS_BASE_URL": "<osm_overpass_base_url>",
        "OSM_OVERPASS_ENDPOINTS": "https://overpass-api.de/api/interpreter",
        "OSM_OVERPASS_MAX_CONCURRENCY": "2",
        "MCP_LOG_LEVEL": "info",
        "MCP_HTTP_HOST": "127.0.0.1",
        "MCP_HTTP_PORT": "3010",
        "MCP_HTTP_ENDPOINT_PATH": "/mcp",
        "MCP_PUBLIC_URL": "<mcp_public_url>",
        "MCP_AUTH_MODE": "none"
      }
    }
  }
}

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "openstreetmap-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "@cyanheads/openstreetmap-mcp-server"
      ],
      "env": {
        "OSM_NOMINATIM_BASE_URL": "https://nominatim.openstreetmap.org",
        "OSM_USER_AGENT": "openstreetmap-mcp-server/0.4.2",
        "OSM_OVERPASS_BASE_URL": "<osm_overpass_base_url>",
        "OSM_OVERPASS_ENDPOINTS": "https://overpass-api.de/api/interpreter",
        "OSM_OVERPASS_MAX_CONCURRENCY": "2",
        "MCP_LOG_LEVEL": "info",
        "MCP_HTTP_HOST": "127.0.0.1",
        "MCP_HTTP_PORT": "3010",
        "MCP_HTTP_ENDPOINT_PATH": "/mcp",
        "MCP_PUBLIC_URL": "<mcp_public_url>",
        "MCP_AUTH_MODE": "none"
      }
    }
  }
}

Cline (cline_mcp_settings.json)

npx -y -- @cyanheads/openstreetmap-mcp-server

Claude Code (claude mcp add)

claude mcp add --scope user openstreetmap-mcp-server -- npx -y -- @cyanheads/openstreetmap-mcp-server

Gemini CLI (gemini mcp add)

gemini mcp add -s user openstreetmap-mcp-server npx -y -- @cyanheads/openstreetmap-mcp-server

Verdict API

curl -s mcpindex.ai/api/v1/trust/server/io-github-cyanheads-openstreetmap-mcp-server

Free-tier verdict as JSON: decision + dimensions + severity. Call it from your agent before it invokes a tool it just discovered.

Details

version: v0.4.2
category: Maps & Location
verdict expires: 2026-09-03
quality: 80 / 100
operator: cyanheads

Listing

Listed from the official MCP registry. Unclaimed by its maintainer. Maintainer? Verify it → · or email us →

Provenance

Each verdict is bound to a hash of the exact description it judged, so a re-crawl that changes the text produces a new record rather than silently inheriting this one. Verdict history is hash-chained and anchored to Bitcoin via OpenTimestamps (latest confirmed at block 964,248). Verify it yourself.

Links

Repository →

Remote endpoint

https://openstreetmap.caseyjhand.com/mcp