# MCP Auth (mcp-auth) - AgentBreakWatch Reference

> TL;DR Verdict: MCP Auth (`mcp-auth`) is currently at v1.0.0-beta.1 on NPM (published 2026-08-31), with a 90-day Stability Score of 78/100 (B) and HIGH schema drift risk across 0 releases in the last 90 days. recent release v1.0.0-beta.1 (up from v0.1.1) updates Developer Tools MCP tool schemas and transport handling (0 releases in last 90d). Pin exact version v1.0.0-beta.1 in .mcp.json to avoid silent parameter drift.

## Live Telemetry Metadata
- Canonical Page: https://agentbreakwatch.vercel.app/p/mcp-auth
- Category Hub: https://agentbreakwatch.vercel.app/c/mcp-bridges-devtools (MCP Bridges, Transports, Inspectors & Developer Tools)
- Package Name: `mcp-auth`
- Registry: NPM (https://www.npmjs.com/package/mcp-auth)
- GitHub Repository: https://github.com/mcp-auth/js
- Vendor: mcp-auth
- Latest Live Version: v1.0.0-beta.1
- Published Date: 2026-08-31T08:54:56.228Z
- 90-Day Release Count: 0
- Direct Dependencies: 1
- License: MIT
- Stability Score: 78/100 (Grade B)
- Schema Drift Risk: HIGH
- Recommended Exact Pin Command: `npx -y mcp-auth@1.0.0-beta.1`
- Watched Symbols / MCP Tools: tools/list, tools/call, mcp-auth
- Snapshot Timestamp: 2026-10-24T12:11:27.697Z

## Breaking Change & Schema Drift Summary
recent release v1.0.0-beta.1 (up from v0.1.1) updates Developer Tools MCP tool schemas and transport handling (0 releases in last 90d). Pin exact version v1.0.0-beta.1 in .mcp.json to avoid silent parameter drift.

## Migration Diff: Before (Deprecated / Unpinned Pattern)
```
"mcp-auth": {
  "command": "npx",
  "args": ["-y", "mcp-auth@latest"]
}
```

## Migration Diff: After (Verified v1.0.0-beta.1 Pattern)
```
"mcp-auth": {
  "command": "npx",
  "args": ["-y", "mcp-auth@1.0.0-beta.1"]
}
```

## Recent Verified Releases
- v0.2.0 (published 2026-01-21) [LATEST]
- v0.1.1 (published 2025-05-21)
- v0.1.0 (published 2025-05-09)
- v0.0.0 (published 2025-04-03)