Elasticsearch MCP Server
A Model Context Protocol (MCP) server implementation that provides Elasticsearch and OpenSearch interaction. This server enables searching documents, analyzing indices, and managing cluster through a set of tools. It runs locally over stdio via the published package.
People connecting this server to Claude, Cursor, VS Code, or another MCP client. The project is written in Python.
VERIFIED ACTIVE
LAST COMMIT 2026-08-16 · ★ 303 · #18 OF 848 MAINTAINED OTHER · VERIFIED 2026-08-25
Apache-2.0 · Python servers · how we verify → /methodology
01 · Install Elasticsearch MCP Server
before you install - you'll need
Set ELASTICSEARCH_CLUSTERS, ELASTICSEARCH_CLUSTERS_FILE, ELASTICSEARCH_USERNAME, ELASTICSEARCH_PASSWORD, ELASTICSEARCH_API_KEY, OPENSEARCH_USERNAME, OPENSEARCH_PASSWORD, MCP_API_KEY before connecting. DEFAULT_CLUSTER, ELASTICSEARCH_HOSTS, OPENSEARCH_HOSTS, DISABLE_HIGH_RISK_OPERATIONS are optional or environment-specific per the README.
Claude Code
claude mcp add cr7258-elasticsearch-mcp-server -- uvx elasticsearch-mcp-serverClaude Desktop / Cursor / VS Code - add to config
{
"mcpServers": {
"cr7258-elasticsearch-mcp-server": {
"command": "uvx",
"args": [
"elasticsearch-mcp-server"
]
}
}
}Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.
Using another client? Same JSON, different key
Claude Desktop · mcpServers
Cursor · mcpServers
VS Code · servers
Windsurf · mcpServers
Zed · context_servers
Cline · mcpServers
Roo Code · mcpServers
Continue · mcpServers
LibreChat · mcpServers
Gemini CLI · mcpServers
Codex CLI · mcp_servers
Full setup guides: every client.
02 · Evidence
Security posture
What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.
runs as local process (stdio) - runs on your machine with your user's permissions
license Apache-2.0 - declared in the repository
pypi package elasticsearch-mcp-server - check the name against the project README before installing (PyPI has no namespace ownership)
registry namespace io.github.cr7258 is GitHub-verified and matches the repo owner
03 · What Elasticsearch MCP Server can do
Prose above is summarized from the project's README and registry record - no invented capabilities.
Latest releases
v2.1.3 · 2026-08-16
2.1.3 - 2026-08-16 · add opt-in GCF response encoding for tool results (RESPONSE_FORMAT=gcf) - (e3eca8f) - @Dayna Blackwell · remove unused anthropic dependency - (6214cff) - @cr7258 · clarify unauthenticated network…
v2.1.2 · 2026-05-22
2.1.2 - 2026-05-22 · support multiple search clusters - (09a0a20) - @cr7258 · load multi-cluster config from a JSON file - (4d7d78b) - @cr7258 · Testing · split unit and e2e suites by feature - (780be57) - @cr7258…
v2.1.1 · 2026-05-06
2.1.1 - 2026-05-06 · Miscellaneous Tasks · streamline release publishing - (0402700) - @cr7258 · Release · update version to 2.1.1 - (17518ab) - @github-actions[bot]
04 · Who maintains Elasticsearch MCP Server
elasticsearch-mcp-server is maintained by cr7258. It's the only MCP server we track from this author; the repo dates to Jan 2025.
05 · Facts
- repository
- github.com/cr7258/elasticsearch-mcp-server
- category
- other - ranked #18 of 848 actively-maintained other servers as of 2026-08-25.
- release cadence
- 1 release in the last 90 days (latest 2026-08-16)
- registry
- io.github.cr7258/elasticsearch-mcp-server (active, first published 2025-09-11 · 3 versions)
- packages
- pypi:elasticsearch-mcp-server
06 · Elasticsearch MCP Server FAQ
What is Elasticsearch MCP Server?
A Model Context Protocol (MCP) server implementation that provides Elasticsearch and OpenSearch interaction. This server enables searching documents, analyzing indices, and managing cluster through a set of tools. It runs locally over stdio via the published package.
Is Elasticsearch MCP Server still maintained?
Yes - as of 2026-08-25, its last commit was 2026-08-16 and it shipped 1 release in the last 90 days. We re-verify nightly.
How do I install Elasticsearch MCP Server?
Run `uvx elasticsearch-mcp-server`. The README documents 12 environment variables (ELASTICSEARCH_CLUSTERS, ELASTICSEARCH_CLUSTERS_FILE, DEFAULT_CLUSTER…) to set first. Set ELASTICSEARCH_CLUSTERS, ELASTICSEARCH_CLUSTERS_FILE, ELASTICSEARCH_USERNAME, ELASTICSEARCH_PASSWORD, ELASTICSEARCH_API_KEY, OPENSEARCH_USERNAME, OPENSEARCH_PASSWORD, MCP_API_KEY before connecting. DEFAULT_CLUSTER, ELASTICSEARCH_HOSTS, OPENSEARCH_HOSTS, DISABLE_HIGH_RISK_OPERATIONS are optional or environment-specific per the README. You can also paste the ready-made client config above.
Does Elasticsearch MCP Server run locally?
Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.
07 · Alternatives to Elasticsearch MCP Server
Alternatives to Elasticsearch MCP Server
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