Vdiff MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 41 installs a week from npm. Last commit 9 Jul 2026.
Breaking-change diffs for npm packages: removed exports, changed signatures, migration notes.
Today is the operative word: we check Vdiff MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add vdiff-mcp -- npx -y vdiff-mcp
{
"mcpServers": {
"vdiff-mcp": {
"args": [
"-y",
"vdiff-mcp"
],
"command": "npx"
}
}
}
[mcp_servers.vdiff-mcp]
command = "npx"
args = ["-y", "vdiff-mcp"]
{
"mcpServers": {
"vdiff-mcp": {
"args": [
"-y",
"vdiff-mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"vdiff-mcp": {
"args": [
"-y",
"vdiff-mcp"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
VDIFF_API_URL (Base URL of the vdiff API instance to use (defaults to the hosted https://vdiff-api.onrender.com)).
The author declared them in the registry entry; get the values from the project itself.
npm & PyPI freshness for AI agents: latest version, deprecations, dated breaking-change diffs.
What breaks when you upgrade a package, and what to use instead - from official docs.
Web page change tracking with structured diffs. markgrab + snapgrab integration.
Production proofs for breaking JSON Schema/MCP changes; UNKNOWN/NO_WITNESS_FOUND not compatible.
Monitor web pages for changes with AI-powered change detection, diffs, and alerts.
Check exact npm/PyPI upgrades for evidence-backed breaking changes; query APIs and components.
The API-change deploy gate for AI coding agents. Read-only breaking-change detection.
MCP server for cross-vendor API/SDK deprecation and breaking-change tracking
Answers built from our own checks of this server.