obi1kenobi/trustfall

Health v2 · maintenance only

Adoption not part of the score

2884 stars · 93 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Trustfall is a query engine written in Rust that lets you query arbitrary data sources—APIs, files, databases, even AI models—using a GraphQL-like query language. It is embeddable as a library (Rust, Python, JS/WASM) and compiles and executes queries across heterogeneous sources as if they were a single database.

Use cases

• query REST APIs as if they were databases
• run federated queries across multiple data sources
• query files on disk with a structured query language
• embed a query engine in a Rust, Python, or browser (WASM) application
• cross-join data from two unrelated APIs
• analyze rustdoc JSON or other structured file formats with queries

When to choose

• you need to query heterogeneous data sources (APIs, files, databases) with one query language
• you want an embeddable query engine in Rust, Python, or WASM/browser environments
• you need to join or correlate data across sources that have no native integration

When to avoid

• you just need SQL queries against a traditional relational database
• you need a standalone database server with storage and indexing
• your data fits naturally in a single existing database or GraphQL backend

Facets

library · maturity active

search-engine parser databases developer-tools apis rust python wasm cross-platform query-engine graphql-like-query-language federated-queries data-connector wasm-embeddable query-language data-engineering nodejs

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