{
  "data": {
    "tool": {
      "category": "code",
      "endpoint": "https://gitdiagram.com/mcp",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/gitdiagram.json",
      "kind": "mcp",
      "listed": "indexed",
      "liveUrl": "https://www.anchorterminal.com/api/v1/live/gitdiagram.json",
      "markdownUrl": "https://www.anchorterminal.com/tools/gitdiagram.md",
      "mcpTools": {
        "check": {
          "checker": "anchor-check/1.0",
          "totalTokens": 1048,
          "counts": {
            "error": 0,
            "note": 1,
            "warn": 0
          },
          "findings": [
            {
              "rule": "TC24",
              "severity": "note",
              "message": "3 of 3 tools have no outputSchema",
              "fix": "Declare outputSchema for tools that return structured data, and return structuredContent that matches it."
            }
          ]
        },
        "checkedAt": "2026-10-04T22:22:57Z",
        "count": 3,
        "schemaTokens": 1048,
        "status": "ok",
        "tools": [
          {
            "name": "get_repository_diagram",
            "title": "Get a GitHub repository's architecture diagram",
            "description": "Get the architecture of a public GitHub repository from GitDiagram (gitdiagram.com): a written explanation of how the codebase is organized, its main components with the source paths they live in, how those components connect, and a Mermaid flowchart of the whole system, plus a link to the interactive diagram, where every component opens its code on GitHub. Use it whenever the user wants to understand, visualize, map or explain a GitHub repository's or open-source project's architecture, structure, main modules or data flow, wants an overview before reading unfamiliar code, or asks for an architecture or system diagram of a repo. Read-only and fast: it returns the diagram GitDiagram has already made. If none exists yet, it returns a link that makes one when opened in a browser. Public repositories only. In chat apps that show interactive views, the result also appears as a zoomable diagram whose components open their code on GitHub.",
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "properties": {
                "repository": {
                  "description": "The GitHub repository as \"owner/repo\" (e.g. \"fastapi/fastapi\") or any github.com URL inside it (e.g. \"https://github.com/vercel/next.js/tree/canary/packages\").",
                  "maxLength": 500,
                  "minLength": 1,
                  "type": "string"
                }
              },
              "required": [
                "repository"
              ],
              "type": "object"
            },
            "annotations": {
              "destructiveHint": false,
              "idempotentHint": true,
              "openWorldHint": false,
              "readOnlyHint": true,
              "title": "Get architecture diagram"
            }
          },
          {
            "name": "find_repository_diagrams",
            "title": "Search GitDiagram's architecture diagrams",
            "description": "Search GitDiagram's library of ready-made architecture diagrams of public GitHub repositories by owner or repository name. Matches any part of \"owner/repo\" (e.g. \"langchain\", \"vercel/\", \"react-native\") and returns up to 10 repositories, most-starred first, each with its interactive diagram link. Use it to find a project's exact owner/repo from its name, or to list which repositories of an owner or topic already have diagrams. It searches repository names only, not code or file contents.",
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "properties": {
                "limit": {
                  "description": "How many repositories to return (1–10, default 10).",
                  "maximum": 10,
                  "minimum": 1,
                  "type": "integer"
                },
                "query": {
                  "description": "Part of a repository's \"owner/repo\" name, e.g. \"fastapi\", \"microsoft/\", or \"next.js\".",
                  "maxLength": 100,
                  "minLength": 1,
                  "type": "string"
                }
              },
              "required": [
                "query"
              ],
              "type": "object"
            },
            "annotations": {
              "destructiveHint": false,
              "idempotentHint": true,
              "openWorldHint": false,
              "readOnlyHint": true,
              "title": "Search diagrams"
            }
          },
          {
            "name": "get_explainer_video",
            "title": "Get a GitHub repository's explainer video",
            "description": "Get GitDiagram's narrated explainer video of a public GitHub repository, if one has been made: the link to watch and share it, its title and length, and the full narration transcript, a plain-language walkthrough of what the project is for, what people do with it and how its main parts fit together. Use it when the user wants a video about a repository, something to watch or share instead of read, or a short spoken-style summary of a project. Read-only: it never makes a video; when none exists it says so and links the page where one can be made.",
            "inputSchema": {
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "properties": {
                "repository": {
                  "description": "The GitHub repository as \"owner/repo\" (e.g. \"fastapi/fastapi\") or any github.com URL inside it (e.g. \"https://github.com/vercel/next.js/tree/canary/packages\").",
                  "maxLength": 500,
                  "minLength": 1,
                  "type": "string"
                }
              },
              "required": [
                "repository"
              ],
              "type": "object"
            },
            "annotations": {
              "destructiveHint": false,
              "idempotentHint": true,
              "openWorldHint": false,
              "readOnlyHint": true,
              "title": "Get explainer video"
            }
          }
        ]
      },
      "name": "GitDiagram",
      "note": "Indexed from the official MCP registry: facts and our own checks, not reviewed, so no score, grade or rank.",
      "packages": null,
      "pageJsonUrl": "https://www.anchorterminal.com/tools/gitdiagram.json",
      "popularity": {
        "githubStars": 17730
      },
      "registryName": "com.gitdiagram/gitdiagram",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://gitdiagram.com/mcp"
        }
      ],
      "repository": "https://github.com/ahmedkhaleel2004/gitdiagram",
      "reviewed": false,
      "slug": "gitdiagram",
      "source": "the official MCP registry",
      "sourceUrl": "https://registry.modelcontextprotocol.io/v0.1/servers?search=com.gitdiagram/gitdiagram",
      "summary": "Architecture diagrams, explanations and Mermaid source for public GitHub repositories.",
      "updatedAt": "2026-09-29T20:33:04Z",
      "url": "https://www.anchorterminal.com/tools/gitdiagram",
      "vendor": "gitdiagram.com",
      "vendorUrl": "https://gitdiagram.com",
      "version": "1.0.0",
      "websiteUrl": "https://gitdiagram.com",
      "where": "hosted",
      "why": [
        "vendor",
        "popular"
      ]
    }
  },
  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/tools/gitdiagram",
    "json": "https://www.anchorterminal.com/tools/gitdiagram.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/tools/gitdiagram.md",
    "slim": "https://www.anchorterminal.com/tools/gitdiagram.min.md"
  },
  "markdown": "# GitDiagram\n\n\u003e Indexed, not reviewed: facts from the official MCP registry and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/\n\n- Kind: MCP server, by gitdiagram.com (https://gitdiagram.com)\n- Category: Code \u0026 developer platforms (https://www.anchorterminal.com/categories/code.md)\n- Listed because: It's published in the registry under gitdiagram.com, a namespace the registry only gives to whoever proves they control that domain. It's in real use: 17,730 GitHub stars.\n- What the official MCP registry says: Architecture diagrams, explanations and Mermaid source for public GitHub repositories.\n\n## Facts\n\n- MCP registry: `com.gitdiagram/gitdiagram` 1.0.0\n- Endpoint: https://gitdiagram.com/mcp (streamable HTTP)\n- Source: https://github.com/ahmedkhaleel2004/gitdiagram\n- Website: https://gitdiagram.com\n- GitHub stars: 17,730\n- Registry entry updated: 2026-09-29\n\n## Tools\n\n- Tools it lists (3, about 1,048 tokens of context, `tools/list` without credentials over MCP 2026-07-28, checked 2026-10-04 22:22 UTC):\n  - `get_repository_diagram` (read-only): Get the architecture of a public GitHub repository from GitDiagram (gitdiagram.com): a written explanation of how the codebase is organized, its main…\n  - `find_repository_diagrams` (read-only): Search GitDiagram's library of ready-made architecture diagrams of public GitHub repositories by owner or repository name. Matches any part of \"owner/repo\"…\n  - `get_explainer_video` (read-only): Get GitDiagram's narrated explainer video of a public GitHub repository, if one has been made: the link to watch and share it, its title and length, and the…\n- How its tools read to an agent (0 errors, 0 warnings, 1 note, about 1,048 tokens; rules at https://www.anchorterminal.com/check.md; not part of the score):\n  - note TC24 server: 3 of 3 tools have no outputSchema\n\n- JSON: https://www.anchorterminal.com/api/v1/tools/gitdiagram.json\n- Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming\n",
  "meta": {
    "attribution": "Anchor Terminal (https://www.anchorterminal.com)",
    "docs": "https://www.anchorterminal.com/docs/",
    "generatedAt": "2026-10-05",
    "license": "CC-BY-4.0",
    "method": "https://www.anchorterminal.com/benchmark/",
    "methodology": "0.3",
    "openapi": "https://www.anchorterminal.com/openapi.json",
    "preview": false,
    "run": "2026-10-01",
    "runLabel": "October 2026 research run"
  },
  "page": {
    "breadcrumbs": [
      {
        "name": "Home",
        "url": "https://www.anchorterminal.com/"
      },
      {
        "name": "Terminal",
        "url": "https://www.anchorterminal.com/tools/"
      },
      {
        "name": "Indexed",
        "url": "https://www.anchorterminal.com/indexed/"
      },
      {
        "name": "GitDiagram",
        "url": ""
      }
    ],
    "description": "GitDiagram, an MCP server by gitdiagram.com, listed from the official MCP registry. Indexed, not reviewed: facts and our own checks, no score or ranking. Architecture diagrams, explanations and Mermaid source for public GitHub repositories.",
    "facts": [
      "not reviewed",
      "not ranked",
      "facts only"
    ],
    "h1": "GitDiagram",
    "image": "https://www.anchorterminal.com/assets/og/indexed.png",
    "path": "/tools/gitdiagram",
    "published": "",
    "section": "indexed",
    "title": "GitDiagram: MCP server, indexed from the official MCP registry",
    "toc": null,
    "updated": "2026-10-05",
    "url": "https://www.anchorterminal.com/tools/gitdiagram"
  },
  "tokens": {
    "markdown": 700,
    "slim": 630
  },
  "version": 1
}