Api Schema Drift Detector

io.github.lazymac2xPublished by GitHub account lazymac2xv1.0.0Updated Oct 24, 2026

Cloudflare Workers MCP server: api-schema-drift-detector

VerifiedStreamable HTTPWeb executableDeveloper ToolsData & Analytics

Overview

AI-generated overview

A remote MCP server that validates data against JSON schemas, detects drift between API responses and expected schemas, and analyzes breaking changes between a

What you can do
Validate data against a JSON schema and get a valid flag plus an error message on failure. Compare an actual API response with an expected schema and report missing required fields, type mismatches, enum violations, missing optional fields and unexpected fields, recursing into nested objects. Analyze two schema versions for breaking changes such as field removal, type changes, newly required fields, enum value removal and constraint tightening.
When to use it
Useful when checking API responses against a contract, catching schema drift in integrations, or reviewing whether a schema change would break existing consumers.
Requirements
A remote endpoint at api.lazy-mac.com; no packages, environment variables or headers are declared, and no authentication is declared.
Before you install
The service is hosted by a third party, so the data and schemas you submit are sent to that remote endpoint. No authentication is declared, so do not send secrets or sensitive payloads.

Installation

In SourceWeft

  1. Open Api Schema Drift Detector in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.lazymac2x%2Fapi-schema-drift-detector/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "api-schema-drift-detector": {
      "type": "http",
      "url": "https://api.lazy-mac.com/api-schema-drift-detector/mcp"
    }
  }
}

README

api-schema-drift-detector-api

Cloudflare Workers MCP server: api-schema-drift-detector. REST + MCP (JSON-RPC 2.0). Live: api.lazy-mac.com/api-schema-drift-detector

Source: README.md at commit ea7feba

Tools

3

schema-validator

Validates if data conforms to a JSON schema. Returns valid:true/false and an error message on failure.

Parametersdatarequiredschemarequired

drift-detector

Detects differences between an actual API response and an expected JSON schema. Reports missing_required (error), type_mismatch (error), enum_violation (error), missing_optional (warning), unexpected_field (info). Recurses into nested objects.

Parametersschemarequiredresponserequired

breaking-change-analyzer

Analyzes breaking changes between two schema versions. Detects: field removal, type changes, newly required fields, enum value removal, constraint tightening.

ParametersnewSchemarequiredoldSchemarequired

Version history

1
  1. v1.0.0LatestSep 16, 2026

Score

90% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.