# Upstash Redis & QStash MCP Server (@upstash/mcp-server) - AgentBreakWatch Reference

> TL;DR Verdict: Upstash Redis & QStash MCP Server (`@upstash/mcp-server`) is currently at v0.4.0 on NPM (published 2026-10-23), with a 90-day Stability Score of 81/100 (B) and MEDIUM schema drift risk across 5 releases in the last 90 days. v0.4.0 updates Redis command execution tool schemas and adds QStash schedule management endpoints.

## Live Telemetry Metadata
- Canonical Page: https://agentbreakwatch.vercel.app/p/upstash-mcp
- Category Hub: https://agentbreakwatch.vercel.app/c/database-backend (Database, SQL & Vector DB MCP Servers Stability Index)
- Package Name: `@upstash/mcp-server`
- Registry: NPM (https://www.npmjs.com/package/@upstash/mcp-server)
- GitHub Repository: https://github.com/upstash/mcp-server
- Vendor: Upstash
- Latest Live Version: v0.4.0
- Published Date: 2026-10-23T11:27:25.459Z
- 90-Day Release Count: 5
- Direct Dependencies: 7
- License: MIT
- Stability Score: 81/100 (Grade B)
- Schema Drift Risk: MEDIUM
- Recommended Exact Pin Command: `npx -y @upstash/mcp-server@0.4.0`
- Watched Symbols / MCP Tools: redis_database_run_single_redis_command, redis_database_list_databases
- Snapshot Timestamp: 2026-10-24T12:11:27.697Z

## Breaking Change & Schema Drift Summary
v0.4.0 updates Redis command execution tool schemas and adds QStash schedule management endpoints.

## Migration Diff: Before (Deprecated / Unpinned Pattern)
```
npx @upstash/mcp-server init $EMAIL $KEY
```

## Migration Diff: After (Verified v0.4.0 Pattern)
```
npx -y @upstash/mcp-server run $EMAIL $KEY
```

## Recent Verified Releases
- v0.4.0 (published 2026-10-23) [LATEST]
- v0.3.0 (published 2026-08-24)
- v0.2.7 (published 2026-08-13)
- v0.2.6 (published 2026-08-07)
- v0.2.5 (published 2026-07-31)
- v0.2.4 (published 2026-07-06)