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Schema Compatibility MCP Server

Developer ToolsModerate7.2MCP RegistryLocal
Free

Server data from the Official MCP Registry

Compare local JSON schema shape fingerprints without returning property names, values, paths, or...

About

Compare local JSON schema shape fingerprints without returning property names, values, paths, or...

Security Report

7.2
Moderate7.2Low Risk

This MCP server implements a focused, read-only schema comparison tool with strong security controls. Path traversal protections are properly implemented, file size limits prevent DoS, and no sensitive data is exposed. Minor code quality issues (broad error handling, lack of input sanitization on string lengths) and missing request logging are present but do not materially affect security. Supply chain analysis found 1 known vulnerability in dependencies (0 critical, 1 high severity). Package verification found 1 issue.

6 files analyzed · 6 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

env_vars

Check that this permission is expected for this type of plugin.

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-mrfentmen-schema-compatibility-mcp": {
      "args": [
        "-y",
        "schema-compatibility-mcp"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

schema-compatibility-mcp

Schema Compatibility compares bounded JSON type fingerprints. It highlights broad type-count changes without exposing property names, values, or schema text. It is not semantic schema compatibility validation.

Quick start

npm install
npm test
npm start

Use compare_schema_shapes with two JSON files inside SCHEMA_COMPATIBILITY_ROOT.

Limits

This is a shape signal, not semantic schema validation. The response contains aggregate type counts only.

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