#1
🔎 Open source distributed and RESTful search engine.
13K starsJun 16, 2026 pushrag-knowledgeJavaSearch
$ npx skills add opensearch-project/OpenSearchAlternatives
Vespa alternatives for AI agents.
Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.
Current skill
Vespa
The AI search platform
100
Quality
87
Trust
7.0K
Stars
#2
Apache Solr open-source search software
1.6K starsJun 15, 2026 pushrag-knowledgeJavaSearch
$ npx skills add apache/solr#3
Cognee is the open-source AI memory platform for agents. Give your AI agents persistent long-term memory across sessions with a self-hosted knowledge graph engine.
30K starsAug 14, 2026 pushrag-knowledgePythonVector Search
$ npx skills add topoteretes/cognee#4
📑 PageIndex: Document Index for Vectorless, Reasoning-based RAG
34K starsJul 18, 2026 pushrag-knowledgePythonVector Search
$ npx skills add VectifyAI/PageIndex#5
Free and Open Source, Distributed, RESTful Search Engine
77K starsJun 16, 2026 pushrag-knowledgeJavaSearch
$ npx skills add elastic/elasticsearch#6
Deeplake is AI Data Runtime for Agents. It provides serverless postgres with a multimodal datalake, enabling scalable retrieval and training.
9.2K starsMay 21, 2026 pushrag-knowledgeC++Vector Search
$ npx skills add activeloopai/deeplake#7
🌌 A complete search engine and RAG pipeline in your browser, server or edge network with support for full-text, vector, and hybrid search in less than 2kb.
10K starsJun 30, 2026 pushrag-knowledgeTypeScriptVector Search
$ npx skills add oramasearch/orama#8
Data Agent Ready Warehouse : One for Analytics, Search, AI, Python Sandbox. — rebuilt from scratch. Unified architecture on your S3.
9.4K starsJul 18, 2026 pushrag-knowledgeRustVector Search
$ npx skills add databendlabs/databend#9
🦔 Fast, lightweight & schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM.
21K starsJun 12, 2026 pushrag-knowledgeRustSearch
$ npx skills add valeriansaliou/sonic#10
Cloud-native search engine for observability. An open-source alternative to Datadog, Elasticsearch, Loki, and Tempo.
11K starsJun 16, 2026 pushrag-knowledgeRustSearch
$ npx skills add quickwit-oss/quickwit#11
Stop renting your intelligence. Own it with AnythingLLM. Everything you need for a powerful local-first agent experience
63K starsJul 13, 2026 pushrag-knowledgeJavaScriptVector Search
$ npx skills add Mintplex-Labs/anything-llm#12
Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.
11K starsJun 15, 2026 pushrag-knowledgeHTMLSemantic Search
$ npx skills add lancedb/lancedb#13
Qdrant - High-performance, massive-scale Vector Database and Vector Search Engine for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/
33K starsJul 18, 2026 pushrag-knowledgeRustVector Search
$ npx skills add qdrant/qdrant#14
MariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry.
7.9K starsJul 19, 2026 pushrag-knowledgeC++Vector Search
$ npx skills add MariaDB/server#15
The Fastest Distributed Database for Transactional, Analytical, and AI Workloads.
10K starsJun 19, 2026 pushrag-knowledgeC++Vector Search
$ npx skills add oceanbase/oceanbase#16
SearXNG is a free internet metasearch engine which aggregates results from various search services and databases. Users are neither tracked nor profiled.
32K starsJun 16, 2026 pushrag-knowledgePythonSearch
$ npx skills add searxng/searxngHow to choose
When should you switch?
Use an alternative when it has a clearer install path, higher trust score, fresher maintenance, or better platform fit for your current agent stack. Keep Vespa if it already passes your workflow test and repository review.
Next step
Compare top candidates side by side
Open the compare page, test the install commands in a sandbox, and check each repository before using a skill in production.