Alternatives to SID

Hosted multimodal retrieval API that hands your AI agent evidence — file, page, and passage — instead of raw search hits

Open-source Microsoft Research RAG that builds a knowledge graph and community summaries from your documents, then queries them in four modes.

Open-source ColPali models and cookbooks for page-level visual document retrieval and multimodal RAG.

RAGatouille is an Apache-2.0 Python library that makes ColBERT late-interaction retrieval usable in any RAG pipeline with a few lines of code.

Lance is an open lakehouse format for multimodal AI, pairing a file format, table format, and catalog spec with hybrid vector and full-text search on object

Elasticsearch Labs: free tutorials, notebooks, and sample apps for AI search, RAG, and vector search on Elasticsearch.

A managed RAG API that syncs Google Drive, Notion, and Slack into agent-ready context — but Ragie's service ends July 19.

SwarmVault is a local-first, MIT-licensed knowledge compiler that turns your files into a provenance-tracked wiki and knowledge graph.

OpenCrab is an ontology-first Graph RAG platform that turns documents into reusable, traceable knowledge packs

Nucleoid is a declarative logic runtime that builds and stores a knowledge graph automatically as your JavaScript-like code runs.