In-depth architectural comparison of the Opencage Geocoding MCP and Nominatim 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.
At a Glance & Executive Verdict
Opencage Geocoding MCP
Location Services · Local stdio
Quality: 47/100 (Fair) | Auth: No auth required
Nominatim
Location Services · Remote HTTP/SSE
Quality: 53/100 (Good) | Auth: No auth required
Verdict Summary: Choose Opencage Geocoding MCP if you need specialized Location Services tools running via a local process. Choose Nominatim if your workspace requires Location Services integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
Choose Opencage Geocoding MCP 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).
Opencage Geocoding MCP is categorized under Location Services and uses a local stdio subprocess. In contrast, Nominatim belongs to Location Services using remote streaming HTTP/SSE transport. Select Opencage Geocoding MCP when you need capabilities focused on location services and Nominatim when you require tools for location services.
Search for coordinates of an address or place name. Returns latitude, longitude, display name, and place type for matched locations.
reverse_geocode
Convert latitude/longitude coordinates to a human-readable address. Returns nearest address, place name, and administrative boundaries.
lookup
Get details for OpenStreetMap locations by ID (e.g., "N123456" for node, "W654321" for way, "R111" for relation). Returns coordinates, names, and metadata.