# Prometheus Metrics MCP Server (prometheus-mcp-server) - AgentBreakWatch Reference

> TL;DR Verdict: Prometheus Metrics MCP Server (`prometheus-mcp-server`) is currently at v1.6.2 on PYPI (published 2026-08-03), with a 90-day Stability Score of 86/100 (B+) and MEDIUM schema drift risk across 1 releases in the last 90 days. Requires FastMCP / MCP Python SDK v2+ tool schema validation; unpinned uvx prometheus-mcp-server@latest deployments risk parameter drift across execute_query and execute_range_query.

## Live Telemetry Metadata
- Canonical Page: https://agentbreakwatch.vercel.app/p/prometheus-mcp-pypi
- Category Hub: https://agentbreakwatch.vercel.app/c/observability (Observability, Sentry, Datadog & Metrics MCP Servers)
- Package Name: `prometheus-mcp-server`
- Registry: PYPI (https://pypi.org/project/prometheus-mcp-server/)
- GitHub Repository: https://github.com/pab1it0/prometheus-mcp-server
- Vendor: Pab1it0
- Latest Live Version: v1.6.2
- Published Date: 2026-08-03T13:26:19.615995Z
- 90-Day Release Count: 1
- Direct Dependencies: 10
- License: MIT
- Stability Score: 86/100 (Grade B+)
- Schema Drift Risk: MEDIUM
- Recommended Exact Pin Command: `uvx prometheus-mcp-server@1.6.2`
- Watched Symbols / MCP Tools: execute_query, execute_range_query, list_metrics, get_targets
- Snapshot Timestamp: 2026-10-24T12:11:27.697Z

## Breaking Change & Schema Drift Summary
Requires FastMCP / MCP Python SDK v2+ tool schema validation; unpinned uvx prometheus-mcp-server@latest deployments risk parameter drift across execute_query and execute_range_query.

## Migration Diff: Before (Deprecated / Unpinned Pattern)
```
"prometheus-mcp-pypi": {
  "command": "uvx",
  "args": ["prometheus-mcp-server"]
}
```

## Migration Diff: After (Verified v1.6.2 Pattern)
```
"prometheus-mcp-pypi": {
  "command": "uvx",
  "args": ["prometheus-mcp-server@1.6.2"],
  "env": { "FASTMCP_LOG_LEVEL": "ERROR" }
}
```

## Recent Verified Releases
- v1.6.2 (published 2026-08-03) [LATEST]
- v1.6.1 (published 2026-05-01)
- v1.6.0 (published 2026-03-07)
- v1.5.3 (published 2026-01-21)
- v1.5.2 (published 2025-12-17)
- v1.5.1 (published 2025-11-22)