Postal Codes vs Postaldatapi MCP
A side-by-side look at the Postal Codes and Postaldatapi MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
P
Postal CodesLocation Services · Remote HTTP/SSEPostal code lookup with place names and coordinates for 60+ countries. Via Zippopotam.us.42FairAuth: not declaredVerdict: choose Postal Codes for location services work over a hosted endpoint; choose Postaldatapi MCP for location services as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
PChoose Postal Codes when
- You need dedicated capabilities in the Location Services domain.
- You prefer a remote HTTP/SSE transport.
Choose Postaldatapi MCP when
- You need dedicated capabilities in the Location Services domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
POSTALDATAPI_KEY. - You want tools like
lookup_postal_code, validate_postal_code, search_by_city.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | P Postal Codes | |
|---|---|---|
| Category | Location Services | Location Services |
| Quality signal | 42/100 · Fair | 52/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Remote HTTP/SSE | Local subprocess (stdio) |
| Auth | Not declared | API key required |
| Pricing | Not declared | Freemium |
| Required env vars | None listed | POSTALDATAPI_KEY |
| Verified owner | Community listing | Community listing |
| GitHub stars | — | 1 |
| Directory activity | 0 views 0 installs 0 upvotes | 2 views 0 installs 0 upvotes |
| Tools | Not listed | 4 |
| Full listing | View Postal Codes | View Postaldatapi MCP |
Tools & capabilities
Postal Codes tools
No tool names declared yet. Check the project README from the listing page.
Postaldatapi MCP tools 4
lookup_postal_codeGet city, state/region, and abbreviation for a postal code (US ZIP, UK postcode, German PLZ, etc.)validate_postal_codeCheck if a postal code exists in a countrysearch_by_cityFind all postal codes for a cityget_postal_code_metadataFull metadata: coordinates, admin hierarchy, timezone, elevation, and more
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Postal Codes
{
"mcpServers": {
"postal-codes": {
"url": "https://invokera.com/mcp/postal-codes"
}
}
}
Postaldatapi MCP
{
"mcpServers": {
"postaldatapi-postaldatapi-mcp": {
"command": "uvx",
"args": [
"postaldatapi-mcp"
],
"env": {
"POSTALDATAPI_KEY": "YOUR_POSTALDATAPI_KEY_HERE"
}
}
}
}
Frequently asked questions
Postal Codes is categorized under Location Services and uses a remote HTTP/SSE transport. Postaldatapi MCP belongs to Location Services and uses a local stdio subprocess. Pick Postal Codes for location services work and Postaldatapi MCP for location services.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Postal Codes has no declared pricing — check the project's own site. Postaldatapi MCP is listed as freemium — a free tier with paid plans. Auth: api key required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add postal-codes and postaldatapi-postaldatapi-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Postal Codes has a quality signal of 42/100 (Fair) with 0 views, 0 installs and 0 GitHub stars. Postaldatapi MCP has 52/100 (Good) with 2 views, 0 installs and 1 GitHub stars.