@poststack.dev/mcp
Model Context Protocol server for the PostStack Email API — an EU-hosted, GDPR-compliant email API for AI agents. Lets assistants like Claude, Cursor, and Windsurf send transactional email, draft replies from inbound threads, run deliverability checks, summarise broadcasts, and more — through one curated tool surface.
102 tools, 5 prompts, and 5 resources, all surfaced over either the local
stdio bin or the hosted HTTP transport at https://api.poststack.dev/mcp.
Full MCP reference: poststack.dev/docs/mcp.
Quickstart
Hosted (Claude.ai connector, hosted agents)
Point any MCP client at:
https://api.poststack.dev/mcpAuthenticate with your PostStack API key as a Bearer token. No local install required.
Claude Desktop (stdio)
{
"mcpServers": {
"poststack": {
"command": "npx",
"args": ["-y", "@poststack.dev/mcp"],
"env": {
"POSTSTACK_API_KEY": "sk_live_your_api_key_here"
}
}
}
}Config file location:






