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20 Best GitHub MCP Servers: compared and ranked, September 2026Ranked from 1,553 matching servers on stars, growth, downloads and maintenance. Updated .

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  • A
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    Embeds live, interactive Tableau dashboards in ChatGPT, pushing mark selections to the model so questions about specific data points are answered with live queried numbers.
    1
    MIT
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    license
    A
    quality
    A
    maintenance
    Renders word-sized charts — sparklines, bars, bullets and 100+ more types — to self-contained SVG with generated alt text, small enough to sit inline in a model's reply or a table cell. Three tools: find the right chart for a question, get its wiring, and render it.
    3
    1,227 npm
    176
    MIT
  • F
    license
    A
    quality
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    maintenance
    MCP server that lets agents create, display, and export rich UI widgets (cards, dashboards, charts, forms) inline in conversations, with interactive iframe support in MCP Apps hosts and PNG image fallback for other clients.
    3
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  • F
    license
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    maintenance
    An MCP server that lets Claude or ChatGPT read, create, and edit mind maps stored in a GitHub repository, with support for local and HTTP transport.
    8
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    Turns a CSV — or a public dataset named in plain English — into an animated chart video. Every numeric claim in the generated narration is recomputed from the source rows before export, and a claim that does not reconcile blocks the export rather than shipping.
    3
    16 npm
    MIT
  • A
    license
    A
    quality
    D
    maintenance
    Enables AI agents to render interactive user interfaces such as forms, dashboards, charts, tables, and wizards directly in MCP-compatible clients. Supports structured data collection and richer interactions beyond text responses.
    6
    MIT
  • A
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    A
    quality
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    TableCharts MCP Server gives any LLM assistant the ability to instantly convert tabular data into beautiful, hosted, interactive dashboards. Simply provide JSON rows, raw CSV text, or a public URL (Notion page, Google Sheet, or Salesforce report), and get back a shareable dashboard URL plus an embeddable iframe code — all in one tool call. Supports 6 chart types: bar, line, area, pie, scatter, a
    2
    17 npm
    MIT
  • A
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    quality
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    maintenance
    An MCP server that enables LLMs to create and open diagrams in draw.io using XML, Mermaid, or CSV formats, by building a URL with compressed content and opening it in the browser.
    3
    53 npm
    MIT
  • A
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    A
    quality
    B
    maintenance
    diagramzu-mcp lets an AI client (Claude, Cursor, ChatGPT, etc.) author Mermaid diagrams in a shared workspace that a team can read, comment on, embed, and present at a clean URL — rather than just generating a one-off diagram. Hosted endpoint https://mcp.diagramzu.ai/mcp or local npx -y @diagramzu/mcp. Also listed in the official MCP registry as ai.diagramzu/mcp.
    14
    325 npm
    1
    MIT
  • A
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    quality
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    Exposes read-only account-health tools for scores, trends, claims checks, risks, pipeline, and next actions, with audience-scoped output for internal or customer views.
    6
    MIT
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    quality
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    maintenance
    Enables AI agents to create and edit Figma Slides in real-time, with built-in renderers for D3 charts, Rough.js sketches, and Satori layouts.
    58
    11 npm
    11
    MIT
  • A
    license
    Not graded
    quality
    B
    maintenance
    Enables LLMs to create and open diagrams in the draw.io editor, supporting inline chat previews via MCP Apps, direct editor opening with XML/CSV/Mermaid format support, and diagram export to PNG/SVG/PDF or browser URLs through multiple integration approaches.
    5,351
    Apache 2.0