
Prepare physical letters and check their status. Review and pay on Postmarkr before mailing.
Maintain this server? Claim it
This server signs you in with OAuth, which the playground doesn't support yet. Install it in your MCP client to try it.
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
claude mcp add --transport http letters https://postmarkr.com/api/mcp
We haven't seen a tool list from this server yet.