Sprint Mail for Claude Code

io.sprintmail/mcp

Print and mail US letters by USPS First-Class, with tracking.

client:Claude Code transport:streamable-http

Install Sprint Mail in Claude Code

run in your project directory

claude mcp add --transport http mcp https://api-production.sprintmail.io/mcp

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs