Elasticsearch runs on your own machine — the client starts it, so there is no endpoint to ping. 91 installs a week from npm. Last commit 11 Oct 2026.
Elasticsearch MCP Server for ES 5.x-9.x with a query harness, field validation and full API access
Nothing serious here today
Today is the operative word: we check Elasticsearch every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add elasticsearch -e 'MCP_TRANSPORT=<MCP_TRANSPORT>' -e 'ES_URL=<ES_URL>' -- npx -y @tocharianou/elasticsearch-mcp{
"mcpServers": {
"elasticsearch": {
"command": "npx",
"args": [
"-y",
"@tocharianou/elasticsearch-mcp"
],
"env": {
"ES_URL": "<ES_URL>",
"MCP_TRANSPORT": "<MCP_TRANSPORT>"
}
}
}
}[mcp_servers.elasticsearch]
command = "npx"
args = ["-y", "@tocharianou/elasticsearch-mcp"]
env = { MCP_TRANSPORT = "<MCP_TRANSPORT>", ES_URL = "<ES_URL>" }{
"mcpServers": {
"elasticsearch": {
"command": "npx",
"args": [
"-y",
"@tocharianou/elasticsearch-mcp"
],
"env": {
"ES_URL": "<ES_URL>",
"MCP_TRANSPORT": "<MCP_TRANSPORT>"
}
}
}
}{
"servers": {
"elasticsearch": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@tocharianou/elasticsearch-mcp"
],
"env": {
"ES_URL": "<ES_URL>",
"MCP_TRANSPORT": "<MCP_TRANSPORT>"
}
}
}
}Put your own values in place of
<MCP_TRANSPORT> (Transport mode selection), <ES_URL> (Your Elasticsearch instance URL (e.g., https://localhost:9200)).
The author’s registry entry marks them as required.
Optional settings from the registry entry, left out of the block above:
MCP_HTTP_PORT (HTTP server port (when using HTTP transport)), MCP_HTTP_HOST (HTTP server host (when using HTTP transport)), ES_API_KEY (Elasticsearch API key for authentication), ES_USERNAME (Elasticsearch username for basic authentication), ES_PASSWORD (Elasticsearch password for basic authentication), ES_CA_CERT (Path to custom CA certificate for Elasticsearch SSL/TLS), NODE_TLS_REJECT_UNAUTHORIZED (Set to '0' to disable SSL certificate validation (development only)), MAX_TOKEN_CALL (Maximum tokens per API call).
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Elasticsearch — questions
Answers built from our own checks of this server.