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SpacePost

Official registry Productivity

Send email and manage domains, contacts and webhooks on SpacePost, the Resend-compatible email API.

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package @spacepost/mcp
Claude Code 
claude mcp add spacepost -e 'SPACEPOST_API_KEY=<your spacepost_api_key>' -e 'SPACEPOST_READ_ONLY=<SPACEPOST_READ_ONLY>' -e 'SPACEPOST_TOOLSETS=<SPACEPOST_TOOLSETS>' -e 'SPACEPOST_PERMISSION=<SPACEPOST_PERMISSION>' -e 'SPACEPOST_DEFAULT_FROM=<SPACEPOST_DEFAULT_FROM>' -- npx -y @spacepost/mcp@0.2.1
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "spacepost": {
            "command": "npx",
            "args": [
                "-y",
                "@spacepost/mcp@0.2.1"
            ],
            "env": {
                "SPACEPOST_API_KEY": "<your spacepost_api_key>",
                "SPACEPOST_READ_ONLY": "<SPACEPOST_READ_ONLY>",
                "SPACEPOST_TOOLSETS": "<SPACEPOST_TOOLSETS>",
                "SPACEPOST_PERMISSION": "<SPACEPOST_PERMISSION>",
                "SPACEPOST_DEFAULT_FROM": "<SPACEPOST_DEFAULT_FROM>"
            }
        }
    }
}

Environment variables

  • SPACEPOST_API_KEY required secret SpacePost API key (sp_live_...), created in the SpacePost dashboard under API keys. A sending_access key limits the server to sending.
  • SPACEPOST_READ_ONLY Set to true to expose only read tools (GET endpoints).
  • SPACEPOST_TOOLSETS Comma-separated API areas to expose, e.g. emails,domains.
  • SPACEPOST_PERMISSION Set to sending_access to expose only the tools a sending_access key can call.
  • SPACEPOST_DEFAULT_FROM Default sender, e.g. Acme <hello@acme.com>, used when a send omits from.

Frequently asked questions

What is SpacePost?

Send email and manage domains, contacts and webhooks on SpacePost, the Resend-compatible email API.

How do I install SpacePost?

It runs on your machine. In Claude Code: claude mcp add spacepost -e 'SPACEPOST_API_KEY=<your spacepost_api_key>' -e 'SPACEPOST_READ_ONLY=<SPACEPOST_READ_ONLY>' -e 'SPACEPOST_TOOLSETS=<SPACEPOST_TOOLSETS>' -e 'SPACEPOST_PERMISSION=<SPACEPOST_PERMISSION>' -e 'SPACEPOST_DEFAULT_FROM=<SPACEPOST_DEFAULT_FROM>' -- npx -y @spacepost/mcp@0.2.1. For other clients, paste the JSON configuration from this page into their MCP settings.

Does SpacePost need an API key?

Yes. It expects SPACEPOST_API_KEY, which you set in its configuration.

Who maintains SpacePost?

It is published by dev.spacepost. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.