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Opensolr

AI site search and RAG API built on managed Apache Solr hosting

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Opensolr runs Apache Solr as a fully managed service and adds the surrounding tooling: a web crawler, hybrid BM25 + kNN search, GPU embeddings, a RAG API, query analytics, backups, teams, query elevation, search tuning and facets. It offers free modules for Drupal and WordPress, packages for LangChain, LlamaIndex, Haystack and Laravel Scout, an MCP server for AI agents, and a REST API for other languages.

12 alternatives to Opensolr

Ranked by how well each tool replaces Opensolr: shared features, audience, price and popularity.

  1. Apache Solr

    Open source, multi-modal search platform built on Apache Lucene

    Covers 0 of 15 key features and is open source.

    Open source
    68 out of 100 match—

  2. Meilisearch

    Unified search and AI retrieval platform.

    Covers 1 of 15 key features and is open source.

    Open source
    60 out of 100 match$20/mo

  3. OpenSearch

    Open-source search and analytics suite for ingesting, searching, and visualizing data.

    Covers 0 of 15 key features and is open source.

    Open source
    59 out of 100 match—

  4. Site Search 360

    Fast, easy on-site search with semantic and full-text capabilities.

    Covers 0 of 15 key features.

    Free plan
    58 out of 100 match$9/mo

  5. AddSearch

    AI search and conversational content discovery platform for websites

    Covers 0 of 15 key features.

    57 out of 100 match$119/mo

  6. ReactiveSearch

    Supercharge your search.

    Covers 0 of 15 key features and is open source.

    Free planOpen source
    57 out of 100 matchFree

  7. You.com

    The Leading Web Search APIs for AI

    Covers 0 of 15 key features.

    Free plan
    56 out of 100 matchFree

  8. Xapian

    Open source search engine library in C++ with bindings for many languages.

    Covers 0 of 15 key features and is open source.

    Open source
    56 out of 100 match—

  9. Cludo

    AI site search and AI answer layers for content-heavy websites

    Covers 1 of 15 key features.

    56 out of 100 match$666.67/mo

  10. Typesense

    Open-source, typo-tolerant search engine for site and app search

    Covers 0 of 15 key features and is open source.

    Free planOpen source
    55 out of 100 matchUsage-based

  11. Amgix

    Open-source hybrid search system handling ingestion, embedding, and hybrid retrieval.

    Covers 0 of 15 key features and is open source.

    Open source
    54 out of 100 match—

  12. Expertrec

    AI-powered site search and merchandising for ecommerce.

    Covers 0 of 15 key features.

    54 out of 100 match$359/mo