Nominatim vs Opencages

In-depth architectural comparison of the Nominatim and Opencages MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Nominatim when:

• You need dedicated capabilities in the Location Services domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: search_address, reverse_geocode, lookup.

Explore Nominatim Details

Choose Opencages when:

• You need dedicated capabilities in the Location Services domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• You have access to required keys: PLATFORM_OPENCAGE_KEY.
• Primary tools included: Forward geocoding with optional result controls, Reverse geocoding from latitude and longitude, Language, country, and bounds parameters.

Feature & Specification Comparison

Specification	Nominatim Location Services	Opencages Location Services
Summary	Nominatim MCP — wraps OpenStreetMap Nominatim geocoding API (free, no auth)	OpenCage forward + reverse geocoding (free key, 2500/day)
Category & Scope	Location Services	Location Services
Quality signal

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "nominatim": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-nominatim"
      ]
    }
  }
}

{
  "mcpServers": {
    "opencages": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-opencages"
      ],
      "env": {
        "PLATFORM_OPENCAGE_KEY": "YOUR_PLATFORM_OPENCAGE_KEY_HERE"
      }
    }
  }
}

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