# nominatim.geocode.search

Forward geocode a free-form address or place name (e.g. "Eiffel Tower", "1600 Amphitheatre Parkway, Mountain View") into coordinates and structured address data, using OpenStreetMap data via Nominatim. Optionally restrict to specific countries. No auth required; ODbL licensed, © OpenStreetMap contributors.

Agent View of the PolicyLayer registry record for `nominatim.geocode.search`. HTML page: https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/nominatim.geocode.search

## Facts

- Tool: `nominatim.geocode.search`
- Server: Apibase (`apibase-mcp-client`) — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase.md
- Install: `npx -y apibase-mcp-client`
- Homepage: https://github.com/whiteknightonhorse/APIbase
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 4 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `limit` | integer | no | Maximum number of matches to return (1-50, default 5) |
| `query` | string | yes | Free-form search text (e.g. "1600 Amphitheatre Parkway, Mountain View" or "Eiffel Tower") |
| `language` | string | no | Preferred response language as an Accept-Language value (e.g. "en", "de-DE") |
| `country_codes` | string | no | Comma-separated ISO 3166-1 alpha-2 country codes to restrict the search to (e.g. "us,ca") |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "nominatim.geocode.search",
    "arguments": {
      "query": "<query>"
    }
  }
}
```

## Why nominatim.geocode.search is rated Low

Tool retrieves geographic data with no side effects, modifying no underlying resources.

From the tool's own definition: "Forward geocode address into coordinates and structured address data, no auth required."

## Use case

AI agents call nominatim.geocode.search to retrieve information from Apibase without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Apibase:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "nominatim.geocode.search": {}
  }
}
```

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## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-whiteknightonhorse-apibase · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-whiteknightonhorse-apibase