RealWorldMCP
Mail & print · API

USPS APIs

Validate addresses, get postage prices and track mail with the US Postal Service.

Official
View source More mail & print

Connect

This is an API, not an MCP server. Call it over HTTP. Setup steps are in its source .

Endpoints

The endpoints are in its docs .

Facts on this page come from the project's README, registry record or docs, read on Nov 2, 2026. Transport and auth are read from the text, so confirm them before you rely on them. Something wrong? See Get listed.

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