Opensolr MCP Server

by phpcipcom.opensolr/opensolr-mcpv0.5.0

Managed Apache Solr: hybrid BM25 and kNN plus semantic search, document ingestion with server-side embeddings, grounded RAG answers and index management.

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Active31d ago

Install Opensolr MCP server

claude mcp add opensolr -e OPENSOLR_EMAIL='<opensolr-email>' -e OPENSOLR_API_KEY='<opensolr-api-key>' -- uvx opensolr-mcp

{
  "mcpServers": {
    "opensolr": {
      "command": "uvx",
      "args": [
        "opensolr-mcp"
      ],
      "env": {
        "OPENSOLR_EMAIL": "<opensolr-email>",
        "OPENSOLR_API_KEY": "<opensolr-api-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "opensolr": {
      "command": "uvx",
      "args": [
        "opensolr-mcp"
      ],
      "env": {
        "OPENSOLR_EMAIL": "<opensolr-email>",
        "OPENSOLR_API_KEY": "<opensolr-api-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "opensolr": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "opensolr-mcp"
      ],
      "env": {
        "OPENSOLR_EMAIL": "<opensolr-email>",
        "OPENSOLR_API_KEY": "<opensolr-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "opensolr": {
      "command": "uvx",
      "args": [
        "opensolr-mcp"
      ],
      "env": {
        "OPENSOLR_EMAIL": "<opensolr-email>",
        "OPENSOLR_API_KEY": "<opensolr-api-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
OPENSOLR_EMAIL	yes	—	Opensolr account email; try the shared demo account mcp@opensolr.com, whose indexes are deleted after 3 days and can be changed or deleted by anyone else using it, or get your own at https://opensolr.com/register (free 15-day trial, no card)
OPENSOLR_API_KEY	yes	yes	Opensolr API key, found under Account > API in the control panel; the shared demo account's key is 420b8b23e7b12dc8ab838932145a5065 (preloaded index mcp_demo_d1__dense with 300 news articles, limits per index are 200 MB bandwidth and 50 MB disk, anything created is deleted after 3 days and other people can change or delete it)

Freshness

Active — last maintenance signal 31d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-09-09 · 31d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-09-07 · 33d ago · official registry · v0.5.0

FAQ

›How do I install the Opensolr MCP server in Claude Code?

Run: claude mcp add opensolr -e OPENSOLR_EMAIL='<opensolr-email>' -e OPENSOLR_API_KEY='<opensolr-api-key>' -- uvx opensolr-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Opensolr require an API key?

Yes. It expects OPENSOLR_EMAIL, OPENSOLR_API_KEY, of which 1 is a secret.

›Can I use Opensolr as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Opensolr in the official MCP registry?

Yes, as com.opensolr/opensolr-mcp.