5 tagged address-validation, measured the same way as everything else here.
htristram/trustydata-mcp-server
MCP server Claude CodeCodexCursor +2
French address quality, geocoding, routing, company lookup & catchment stats (BAN, INSEE, OSM). Remote server at mcp.trustydata.app.
MCP server Claude CodeCodexCursor +2
Address validation & geocoding for AI agents: 240+ countries, UK PAF, free US/CA enrichment. Remote server at api.acuris-geo.com.
MCP server Claude CodeCodexCursor +2
Address validation, UK postcode lookup (PAF), geocoding & reverse-geocoding in 240+ countries. Runs locally from the @acuris-geo/mcp-server npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
Validate UK addresses, postcodes, emails and phone numbers — Royal Mail PAF, live SMTP and HLR. Runs locally from the @postio/mcp npm package. Needs 2 environment variables to run.
UnbearableDev/hu-postcode-validator
MCP server Claude CodeCodexCursor +2
Hungarian postcode lookup + validation - 3,484 codes, sub-10ms lookups, bulk address endpoint. Remote server at unbearable-dev--hu-postcode-validator.apify.actor.