comunica/comunica

What it solves

Comunica provides a flexible framework for querying decentralized RDF (Resource Description Framework) data on the Web. It allows users to execute SPARQL and GraphQL queries across various sources, including local files, in-memory sources, and remote endpoints, without requiring a centralized database.

How it works

Comunica is a modular query engine implemented in JavaScript. It uses a set of composable modules and specialized engines to handle different data sources and query paradigms. It supports various retrieval methods, such as following links between documents (Link Traversal), handling Solid access control, and applying reasoning to the RDF data during the query process.

Who it’s for

It is designed for JavaScript developers building applications that need to interact with decentralized knowledge graphs and RDF data, as well as researchers in the semantic web space.

Highlights

• Multi-source support: Queries can be run against local files, HDT files, OSTRICH archives, and RDF/JS-compliant sources.
• Flexible Query Languages: Supports both SPARQL and GraphQL.
• Decentralized approach: Capable of querying across the web by following links (Link Traversal) and integrating with Solid data vaults.
• AI Agent Integration: Provides MCP (Model Context Protocol) wrappers to allow AI agents to interact with its query engines.
• Extensible: Users can can customize configurations or contribute new query operation actors to the engine.