Send email and manage domains, contacts and webhooks on SpacePost, the Resend-compatible email API.
To add SpacePost to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 5 environment variables, listed below.
Install
npx -y @spacepost/mcp@0.2.1Environment variables
SPACEPOST_API_KEYSet in your MCP configSPACEPOST_READ_ONLYSet in your MCP configSPACEPOST_TOOLSETSSet in your MCP configSPACEPOST_PERMISSIONSet in your MCP configSPACEPOST_DEFAULT_FROMSet in your MCP configInstall with your client
claude mcp add spacepost --env SPACEPOST_API_KEY=<YOUR_SPACEPOST_API_KEY> --env SPACEPOST_READ_ONLY=<YOUR_SPACEPOST_READ_ONLY> --env SPACEPOST_TOOLSETS=<YOUR_SPACEPOST_TOOLSETS> --env SPACEPOST_PERMISSION=<YOUR_SPACEPOST_PERMISSION> --env SPACEPOST_DEFAULT_FROM=<YOUR_SPACEPOST_DEFAULT_FROM> -- npx -y @spacepost/mcp@0.2.1
Run this in a terminal to add the server to Claude Code.
What this does
SpacePost exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server needs the following environment variables to be set before it can run:
SPACEPOST_API_KEY SPACEPOST_READ_ONLY SPACEPOST_TOOLSETS SPACEPOST_PERMISSION SPACEPOST_DEFAULT_FROM
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install SpacePost?
Run the Claude Code command in the install section to add SpacePost to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with SpacePost?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to SpacePost as well.
Does SpacePost need an API key?
Yes. Before it can run, set these environment variables: SPACEPOST_API_KEY, SPACEPOST_READ_ONLY, SPACEPOST_TOOLSETS, SPACEPOST_PERMISSION, SPACEPOST_DEFAULT_FROM. They go in the env block of your MCP config.
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