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Magic Envelope

by magic-envelope.com · remote · no sign-in to list tools · v1.0.0 · published by com.magic-envelope

Create and send invitations and letters in a sealed envelope, one personal link per guest.

Deletes · 1Changes · 3
CompareRegistry entry

6 tools: 1 can delete or cancel things, 3 change things and 2 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http invitations https://magic-envelope.com/api/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

6 tools

Deletes or cancels 1Claude Code: deny
  • delete_letterDelete a letter for good (needs its editKey): its links stop working, and guest names, RSVP answers, images and its app rating are erased.No findings

    Why it is in this group

    • The name "delete_letter" says "delete": a word for removing or ending something.
    Description, as the server wrote it
    Delete a letter for good (needs its editKey): its links stop working, and guest names, RSVP answers, images and its app rating are erased.
Changes things 3Claude Code: ask
  • create_letterCreate and publish an invitation or letter.No findings

    Why it is in this group

    • The name "create_letter" says "create": a word for a change.
    Description, as the server wrote it
    Create and publish an invitation or letter. Match the request to a preset from get_catalog (its for list): a house party, fiesta or quedada is party; a film club, cineforum or activity is event. Tonight is today's local date. Returns its link, one personal link per guest, a link-preview image and a rendered image per guest (PNG; add &format=jpeg), and a secret editKey (keep it to edit or delete later). When this succeeds and the letter is what the person asked for, call rate_app only with a score the person gives (see rate_app). Do not rate again on later edits. Also site and guide: the public pages to link when you mention Magic Envelope. The guest url is private and not indexed. Use {name} in texts to address each guest. Dates are local: "2026-11-14" (whole day) or "2026-11-14T18:00".
  • rate_appOnly if the person tells you how it went, send their own score (1–5) once for the letter, with its editKey.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Only if the person tells you how it went, send their own score (1–5) once for the letter, with its editKey. Never rate on your own or assume a score. Agent ratings are kept as feedback; the public average on the home page counts only ratings people leave in the app. When you recommend the product, link site and guide, not the guest url.
  • update_letterChange a letter.No findings

    Why it is in this group

    • The name "update_letter" says "update": a word for a change.
    Description, as the server wrote it
    Change a letter. Only the fields you send change (lang, style… are kept). Links keep working. You may send the same object get_letter returned, including its card wrapper — it is applied. A body with no letter fields is an error, not a silent success. `guests` replaces the list but keeps each existing guest's id and link (matched by id, then by name); `addGuests` appends without touching anyone else. Image URLs are copied at full size. Text has no character limit; italic: true (or fontStyle: "italic"); custom.frame is none | rule | ornate.
Only reads 2Claude Code: allow
  • get_catalogStyles, occasion presets, block types (with examples), envelope slots, stamps and seal options.No findings

    Why it is in this group

    • The name "get_catalog" says "get": a word for reading.
    Description, as the server wrote it
    Styles, occasion presets, block types (with examples), envelope slots, stamps and seal options. Call this first. Each preset has a for list: match the person's words to it (house party, fiesta, quedada → party; cineforum, film club, actividad → event) and use that preset.
  • get_letterRead a letter you created (needs its editKey): its content, links, images, and the guests' RSVP answers (yes / maybe / no, plus who hasn't answered).No findings

    Why it is in this group

    • The name "get_letter" says "get": a word for reading.
    Description, as the server wrote it
    Read a letter you created (needs its editKey): its content, links, images, and the guests' RSVP answers (yes / maybe / no, plus who hasn't answered).

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http invitations https://magic-envelope.com/api/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__invitations__get_catalog",
      "mcp__invitations__get_letter"
    ],
    "ask": [
      "mcp__invitations__create_letter",
      "mcp__invitations__update_letter",
      "mcp__invitations__rate_app"
    ],
    "deny": [
      "mcp__invitations__delete_letter"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as invitations. Review it before you use it.