Api Diff Monitor

io.github.lazymac2xPublished by GitHub account lazymac2xv1.0.0Updated Oct 25, 2026

Cloudflare Workers MCP server: api-diff-monitor

VerifiedStreamable HTTPWeb executableDeveloper ToolsSecurity & Monitoring

Overview

AI-generated overview

A remote MCP server that lets an assistant register API endpoints, compare their JSON schemas over time, and flag breaking changes.

What you can do
Register API endpoints to monitor, with name, URL and optional method, headers and description, and list or delete monitored endpoints with their stored history. Fetch a registered endpoint and compare it against its last snapshot, or compare two inline JSON objects directly. Retrieve the schema diff history for an endpoint and check whether it has had breaking changes such as removed fields or type changes.
When to use it
Useful when you want an assistant to keep an eye on third-party or internal API contracts and tell you when a response schema shifts or breaks, without writing your own diff tooling.
Requirements
A remote endpoint at over streamable HTTP; no packages, environment variables or headers are declared. No authentication is declared, and network access to the monitored endpoints is implied.
Before you install
Registering an endpoint stores its URL and any headers you supply on the remote service, so avoid passing secrets in headers. Deleting an endpoint removes its snapshots and diff history permanently. Comparisons fetch the registered endpoints, so their responses pass through the third-party service.

Installation

In SourceWeft

  1. Open Api Diff Monitor 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-diff-monitor/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-diff-monitor": {
      "type": "http",
      "url": "https://api.lazy-mac.com/api-diff-monitor/mcp"
    }
  }
}

README

This repository has no README.

Tools

6

register_endpoint

Register an API endpoint to monitor for schema changes. Provide name, url, and optionally method/headers/description.

Parametersurlrequiredbodynamerequiredmethodheadersdescription

list_monitored_endpoints

List all registered API endpoints being monitored.

Takes no parameters.

compare_snapshots

Fetch a registered endpoint and compare against its last snapshot to detect schema changes. Or compare two inline JSON objects directly.

Parameterssavesnapshot_asnapshot_bendpoint_id

get_diff_history

Retrieve the schema diff history for a registered endpoint.

Parameterslimitendpoint_idrequired

detect_breaking_changes

Check if a registered endpoint has had any breaking changes (removed fields or type changes).

Parametersendpoint_idrequired

delete_endpoint

Remove a monitored endpoint and all its snapshots and diff history.

Parametersendpoint_idrequired

Version history

1
  1. v1.0.0LatestSep 16, 2026

Score

75% 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

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • License10 pts

    Declare a license in the repository or the registry entry.