Postcard for Claude Code

com.clawhard/postcard

Check a link's share card on X, Facebook, LinkedIn: real image size, tag problems, fixed tags.

client:Claude Code transport:streamable-http tools:2

Install Postcard in Claude Code

run in your project directory

claude mcp add --transport http postcard https://postcard.clawhard.com/mcp

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