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Graph Paper

by graph-paper.io · remote · no sign-in to list tools · v1.0.0 · published by io.graph-paper

Check a plot document and get a link that opens it in Graph Paper. No account, no key.

Changes · 1
CompareRegistry entry

3 tools: 1 change things and 2 only read.

Scanned Oct 21, 2026

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

claude mcp add --transport http graph-paper https://graph-paper.io/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warnmake_plot_link

    The server marks "make_plot_link" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "make_plot_link" says "link": a word for a change.

    What this check looks for

Tools

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

3 tools

Changes things 1Claude Code: ask
Only reads 2Claude Code: allow
  • get_plot_formatReturn the reference of the Graph Paper plot document format, as Markdown: every field of a plot document, the series types, the limits, and complete examples.Reads private dataNo findings

    Why it is in this group

    • The name "get_plot_format" says "get": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "return" and "document": it reads documents.
    Description, as the server wrote it
    Return the reference of the Graph Paper plot document format, as Markdown: every field of a plot document, the series types, the limits, and complete examples. Give section to get one section only (a heading of the page, such as "Variables" or "2D Series Types"); an unknown section returns the list of headings. Read it before you write a document for make_plot_link.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • list_examplesReturn the example plot documents of the Graph Paper format page, each with its title and its JSON.Reads private dataNo findings

    Why it is in this group

    • The name "list_examples" says "list": a word for reading.

    What it can reach

    • private-dataThe description's first sentence says "return" and "document": it reads documents.
    Description, as the server wrote it
    Return the example plot documents of the Graph Paper format page, each with its title and its JSON. Each one is a valid document that make_plot_link accepts; start from the one closest to what you want.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false

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.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged untrusted-input or outbound.

Reads private data2
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Install

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

claude mcp add --transport http graph-paper https://graph-paper.io/mcp

Run in a terminal.

Claude Code permissions

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

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__graph-paper__get_plot_format",
      "mcp__graph-paper__list_examples"
    ],
    "ask": [
      "mcp__graph-paper__make_plot_link"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as graph-paper. Review it before you use it.

Capability tags behind 2 rules
  • mcp__graph-paper__get_plot_format private-data
  • mcp__graph-paper__list_examples private-data