elasticsearch-mcp-server

Elasticsearch & OpenSearch MCP Server by Elastic

MCP Server for interacting with Elasticsearch and OpenSearch

Live Registry Versionv2.1.6Previous: v2.1.5Published 2026-10-19

Stability Grade

B+ (86/100)

90-Day Velocity

4 releases

Stable release cadence

Dependencies

10 direct

PYPI manifest

License

Apache License Version 2

Verified on PYPI

Recommended Exact Pin: uvx elasticsearch-mcp-server@2.1.6

PYPI Registry ->GitHub Repo ->

TL;DR Verdict & Quick Citation Summary (2026-10-24)Source: AgentBreakWatch Live PYPI Index

Elasticsearch & OpenSearch MCP Server (elasticsearch-mcp-server) is currently at v2.1.6 on PYPI (published 2026-10-19), with a 90-day stability score of 86/100 (B+) and MEDIUM schema drift risk across 4 releases in the past 90 days. Requires FastMCP / MCP Python SDK v2+ tool schema validation; unpinned uvx elasticsearch-mcp-server@latest deployments risk parameter drift across list_indices and get_mappings. Production teams should pin uvx elasticsearch-mcp-server@2.1.6 rather than using unpinned @latest tags.

Breaking Changes & Tool Schema Drift Analysis

Requires FastMCP / MCP Python SDK v2+ tool schema validation; unpinned uvx elasticsearch-mcp-server@latest deployments risk parameter drift across list_indices and get_mappings.

Watched Exports / MCP Tool Signatures:

list_indicesget_mappingssearchesql

Before (Deprecated / Unpinned Pattern)

"elasticsearch-mcp-pypi": {
  "command": "uvx",
  "args": ["elasticsearch-mcp-server"]
}

After (Verified v2.1.6 Pattern)

"elasticsearch-mcp-pypi": {
  "command": "uvx",
  "args": ["elasticsearch-mcp-server@2.1.6"],
  "env": { "FASTMCP_LOG_LEVEL": "ERROR" }
}

Frequently Asked Questions: elasticsearch-mcp-server

What is the latest version of elasticsearch-mcp-server on PYPI?

As of 2026-10-24, the latest stable version of elasticsearch-mcp-server (Elasticsearch & OpenSearch MCP Server by Elastic) on PYPI is v2.1.6, published on 2026-10-19. It has shipped 4 releases in the last 90 days.

Does elasticsearch-mcp-server v2.1.6 have breaking changes or MCP schema drift risk?

elasticsearch-mcp-server currently carries a MEDIUM schema drift risk rating with a Stability Score of 86/100 (Grade B+). Requires FastMCP / MCP Python SDK v2+ tool schema validation; unpinned uvx elasticsearch-mcp-server@latest deployments risk parameter drift across list_indices and get_mappings.

How do I safely pin elasticsearch-mcp-server in production?

Avoid unpinned @latest tags in production agent configs. Pin the exact verified version using `uvx elasticsearch-mcp-server@2.1.6` and monitor list_indices, get_mappings, search, esql for parameter or schema changes.

30-Min Registry & Schema Poller

Get Instant Breaking-Change Alerts for elasticsearch-mcp-server

We poll PYPI and elastic/mcp-server-elasticsearch every 30 minutes. Get an email with the exact diff when elasticsearch-mcp-server ships a breaking release beyond v2.1.6.