Model Context Protocol server for Valhalla routing engine
Model Context Protocol server for Valhalla routing engine. The valhalla mcp mcp server wraps that behind the Model Context Protocol, so an assistant can use it through 3 defined tools rather than through you.
A Model Context Protocol (MCP) server that provides seamless integration between Claude Desktop and the Valhalla Open-Street-Map routing engine. Access professional routing and isochrone capabilities directly from your AI conversations without complex APIs.
Everything the assistant can do here goes through one of these:
Prerequisites — The Prerequisites tool exposed by this serverInstallation — The Installation tool exposed by this serverTesting — The Testing tool exposed by this serverYou will need one environment variable: VALHALLA_BASE_URL. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.
The server ships on npm as tsc, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.
Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Valhalla MCP's toolset — Prerequisites, Installation, Testing — is a fair guide to whether it matches your workflow. It is maintained by aatakansalar; worth a glance at recent repository activity before you build anything load-bearing on it.
This entry was verified against Valhalla MCP's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.
| Tool | What it does |
|---|---|
| Prerequisites | The Prerequisites tool exposed by this server. |
| Installation | The Installation tool exposed by this server. |
| Testing | The Testing tool exposed by this server. |
**For Local Valhalla Server:**
```json
{
"mcpServers": {
"valhalla-mcp": {
"command": "node",
"args": ["dist/index.js"],
"cwd": "/YOUR/PATH/TO/valhalla-mcp",
"env": {
"VALHALLA_BASE_URL": "http://localhost:8002"
}
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| VALHALLA_BASE_URL | Endpoint or connection string the server talks to. | Yes |
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