opensearch-mcp

Zero-config web_search and web_fetch for any MCP client.

{
  "mcpServers": {
    "opensearch": { "command": "npx", "args": ["-y", "opensearch-mcp"] }
  }
}

The CLI runs the Node OpenSearch runtime. It works without API keys through the available public fallbacks, and can use provider credentials from the same environment variables as @minpeter/opensearch.

Set OPENSEARCH_MCP_LOG_EVENTS=true to write sanitized core lifecycle events as one JSON object per stderr line. Events include operation/provider/cache/fallback state and latency but omit raw queries and URLs, so container log collectors can build basic availability and latency dashboards without parsing tool output.

Playwright is not installed automatically. If you want the optional Playwright fallback, install it alongside the MCP package and set OPENSEARCH_ENABLE_PLAYWRIGHT_FALLBACK=true.

License

MIT