Can Claude Code use Postmark?
Updated October 27, 2026 · from live checks of 50,180 MCP servers · Methodology
Official Postmark route
ActiveCampaign (Postmark) runs its own MCP server.
- Install: local (github.com/ActiveCampaign/postmark-mcp)
- In the official MCP Registry: No. Published through ActiveCampaign (Postmark)'s own docs or domain.
- Setup guides: ActiveCampaign (Postmark) GitHub repo
Checked 2026-10-26. Spotted something out of date? Tell us →
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Remote Postmark servers
| Server | Publisher | Status | Sign-in | Tools | Trust |
|---|---|---|---|---|---|
ActiveCampaign (Postmark) hosted MCP server local install | Official · ActiveCampaign (Postmark)-hosted | Listed from vendor docs | OAuth (official) | — | — |
| Postmark Yours? Claim it | Community | Live | No auth | — | B |
| Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun Yours? Claim it | Community | Live · sign-in | OAuth sign-in | — | C |
| Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun Yours? Claim it | Community | Live · sign-in | OAuth sign-in | — | C |
| Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun Yours? Claim it | Community | Live · sign-in | OAuth sign-in | — | D |
Local Postmark servers
| Server | Publisher | Status | Sign-in | Tools | Trust |
|---|---|---|---|---|---|
| Postmark Yours? Claim it | Registry domain | Local install | No auth | — | C |
| Postmark MCP Yours? Claim it | Community | Local install | No auth | — | C |
How to add Postmark to Claude Code
- Remote server: run
claude mcp add --transport http <name> <url>. - Local server: run
claude mcp add <name> -- <command>with the install command from the server page. - Run
/mcpinside Claude Code to sign in.
Example for Postmark (from the table above):
claude mcp add --transport http postmark https://gateway.pipeworx.io/postmark/mcpMenus change, so check Anthropic's Claude Code MCP docs. Every server page has a copy-paste config for Claude Code.
Is it safe to connect Postmark to Claude Code?
Use the official server run by ActiveCampaign (Postmark). Anything a tool returns is sent to the AI vendor, so use a business plan that doesn't train on your data.
Can ChatGPT or Claude connect to Postmark?
See https://canmyaiuse.pages.dev/can/chatgpt/postmark/ and https://canmyaiuse.pages.dev/can/claude/postmark/
Does Postmark have an official MCP server?
Yes. ActiveCampaign (Postmark) publishes one (local (github.com/ActiveCampaign/postmark-mcp)). It isn't listed in the official MCP Registry; we found it in ActiveCampaign (Postmark)'s own docs or GitHub. Checked 2026-10-26. Full list: https://canmyaiuse.pages.dev/apps/postmark/
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