Observed arrival · 2026-10-03

Signature MCP puts a human approval window between an AI agent and a PDF

signaturemcp.app Visit website

Editorial interest 78/100 Selection signal · not a rating of the site

A free Mac menu-bar app lets MCP-compatible AI agents request a signature and receive a signed PDF after the user approves it.

Landing page captured for the 2026-10-03 issue.

For: Mac users connecting AI agents to document workflows
Worth noticing: Its ten MCP tools include batch signing, company-stamp handling, and deletion of returned signature files.

Field notes

The setup section provides copyable instructions for Claude Code and Codex CLI, along with a configuration example for other MCP-compatible apps. Beyond signing one PDF, the listed tools include multi-file signing, company text and stamp changes that require confirmation, and a command to discard returned signature files. The app is described as running locally from the Mac menu bar, without a Dock icon.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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