MCP server

Postmark

io.github.pipeworx-io/postmark

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Postmark MCP.

Website Source

At a glance

Type

MCP server

Publisher

pipeworx.io (verified by the MCP Registry)

Status

Working at last check

Tools

52

Token cost

About 27,529 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http postmark https://gateway.pipeworx.io/postmark/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.postmark]
url = "https://gateway.pipeworx.io/postmark/mcp"

Gemini CLI

{"mcpServers":{"postmark":{"httpUrl":"https://gateway.pipeworx.io/postmark/mcp"}}}

Cursor

{"mcpServers":{"postmark":{"url":"https://gateway.pipeworx.io/postmark/mcp"}}}

VS Code

{"servers":{"postmark":{"type":"http","url":"https://gateway.pipeworx.io/postmark/mcp"}}}

Antigravity

agy mcp add postmark https://gateway.pipeworx.io/postmark/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"postmark","server_url":"https://gateway.pipeworx.io/postmark/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"postmark","server_url":"https://gateway.pipeworx.io/postmark/mcp"}

Tools

• bounce ~86 tokens
  Fetch full details for a single Postmark bounce record by numeric id, including bounce type, recipient email, description, and raw bounce content.
• bounce_activate ~56 tokens
  Re-activate a bounced address.
• bounces ~87 tokens
  List bounced email records from the Postmark server with optional filters (type, inactive, emailFilter, tag, fromdate, todate); returns bounce type, recipient, and timestamp.
• delivery_stats ~39 tokens
  Server-level delivery stats.
• message_outbound_detail ~70 tokens
  Single outbound detail.
• message_outbound_dump ~102 tokens
  Retrieve the raw MIME source (full email dump) for a sent outbound message by messageId; useful for debugging encoding or header issues.
• messages_outbound ~92 tokens
  List outbound messages sent through the Postmark server with optional filters (recipient, from, tag, status, fromdate, todate); returns message summaries with status and timestamps.
• send Sends messages · ~394 tokens
  Send one transactional email through the Postmark delivery API (api.postmarkapp.com/email) using a Postmark server token. Takes from, to, subject, HTML and text bodies, cc, bcc, reply-to, custom headers, tag, open and link tracking flags, and message stream; returns the Postmark MessageID, submitted
• send_batch Sends messages · ~226 tokens
  Send a batch of up to 500 transactional emails in one call to the Postmark delivery API (api.postmarkapp.com/email/batch), passing an array of messages in Postmark field form (From, To, Subject, HtmlBody, TextBody, Tag, MessageStream) and a Postmark server token. Returns one result per message with
• server ~74 tokens
  Fetch configuration and metadata for the current Postmark server, including name, color, delivery settings, bounce/spam threshold, and message stream settings.

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