Opensolr MCP server

Read from the package source without running it. The installed server may list more.

• opensolr_add_documents

  Index plain-text documents via the Opensolr Data Ingestion API.

• opensolr_ai_answer

  Ask a question and get a grounded RAG answer generated ONLY from the content already indexed in the given Opensolr index. Retrieval runs through the platform's tuned hybrid pipeline (the index's saved Search Tuning applies automatically) — the top rag_docs hits (first rag_words words of text each) become the LLM context, the same pipeline as the hosted search UI. filter_query optionally narrows re

• opensolr_create_indexwrite action

  Create a new vector-enabled Opensolr index. location: us, de, fi, or any environment id from opensolr_vector_regions. Additional dedicated regions can be deployed on request (support@opensolr.com).

• opensolr_delete_documentswrite action

  Delete documents by ids (Solr ids or your original ids) or by a raw Solr query, e.g. 'meta_category:"drafts"' or '+id:"abc123"'.

• opensolr_index_info

  Get connection details for an index: Solr URL, version, environment. (Credentials are intentionally not returned.)

• opensolr_ingest_status

  Status of a Data Ingestion job (state, processed/success/failed doc counts). Also visible in the Opensolr Control Panel.

• opensolr_list_indexes

  List all search indexes in the connected Opensolr account.

• opensolr_search

  Search an Opensolr index and return the k most relevant documents.

• opensolr_search_by_image

  Search an Opensolr index with a PHOTO instead of a text query.

• opensolr_vector_regions

  List the vector-enabled Opensolr environments currently available (Solr 9.x with dense vectors and the hybrid query parser).

• Code scan4 source files scanned25/25
• –Live reliabilityno gateway calls yet and no remote to proben/a
• –Tool poisoningtools not inspected (local package is not executed); not countedn/a
• Auth qualitystatic API keys via environment variables6/15
• Maintenancelast push 11 days ago15/15
• Maintainer identitynamespace and repository owner differ; GitHub account older than a year; website matches verified namespace7/10

Opensolr: common questions

Is Opensolr MCP server safe?

Mostly: it is graded B (82/100). Read the Opensolr safety report

How do I install Opensolr?

It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.

Does Opensolr need an API key?

Yes. The registry entry asks for OPENSOLR_API_KEY.

Is Opensolr maintained?

The last commit was 12 days ago (2026-09-09). The latest release is v0.5.0.

What can I use instead of Opensolr?

Servers from other publishers that do the same job: PDF MCP server, haiku.rag MCP server and Minirag MCP server. Compare all Opensolr alternatives.