MCP Server: Elasticsearch semantic search tool

Name: MCP Server: Elasticsearch semantic search tool
Author: jedrazb

@jedrazb

代码仓库主页

关于 MCP Server: Elasticsearch semantic search tool

MCP server to search up-to-date elasticsearch docs

基本信息

分类

记忆与知识

运行时

python

传输方式

stdio

发布者

jedrazb

配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "elastic-semantic-search-mcp-server": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "\\"
      ]
    }
  }
}

工具

未检测到工具

工具是从 README 中自动提取的。维护者可以在 ## Tools 标题下列出工具,即可填充这部分内容。

概览

What is MCP Server: Elasticsearch semantic search tool?

This Python MCP server enables semantic search on Search Labs blog posts indexed in Elasticsearch. It uses the ELSER model for semantic text retrieval and integrates with Claude Desktop via MCP protocol. Designed for developers building AI-powered search applications with Elasticsearch.

How to use MCP Server: Elasticsearch semantic search tool?

Set ES_URL and ES_AP_KEY in a .env file. Start the server with make dev and access the MCP Inspector at http://localhost:5173. To add to Claude Desktop, run make install-claude-config, which updates claude_desktop_config.json.

Key features of MCP Server: Elasticsearch semantic search tool

Semantic search over Elasticsearch documents using ELSER model
Crawls Search Labs blog posts with Elastic Open Crawler
MCP Inspector interface for testing and debugging
One‑command integration with Claude Desktop
Configuration via environment variables (URL and API key)

Use cases of MCP Server: Elasticsearch semantic search tool

Search indexed blog posts by meaning, not just keywords
Let Claude Desktop retrieve semantic answers from your Elasticsearch corpus
Prototype semantic search workflows with an MCP‑compatible AI assistant
Combine crawling and indexing for a complete search‑pipeline demo

FAQ from MCP Server: Elasticsearch semantic search tool

What dependencies does the server require?

You need a running Elasticsearch cluster (with the ELSER model available), the Elastic Open Crawler (Docker image), and an API key with crawl‑and‑search privileges.

Where does the data live?

All documents are stored in an Elasticsearch index named search-labs-posts. The crawler populates it; the MCP server queries it.

What transport or authentication does the server use?

The server connects to Elasticsearch via its REST API using the URL and API key supplied in the .env file. No additional MCP transport is configured beyond the standard MCP protocol.

What are the known limits?

The crawler and ELSER model must be fully set up before indexing—if using a fresh cluster, wait for the ELSER model to start. The server only works with the search-labs-posts index and assumes the mapping defined in the README.

How is this different from standard Elasticsearch search?

It uses semantic_text fields with the ELSER model, enabling term‑agnostic semantic matching rather than keyword‑based BM25 scoring.

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