trustfall

trustfall is a flexible and extensible query engine designed to retrieve and analyze data from a wide variety of heterogeneous sources using a unified query language. It allows developers to query APIs, databases, files, and even structured outputs from AI systems as if they were part of a single, cohesive graph-based dataset. The system is inspired by GraphQL-like paradigms, enabling expressive and composable queries that can traverse relationships across different data domains seamlessly. Trustfall operates by parsing, compiling, and executing queries through adapters that connect to specific data sources, making it highly modular and adaptable to new environments. It can run entirely client-side through WebAssembly or in traditional server-client architectures, offering flexibility in deployment scenarios. The engine is particularly powerful for cross-source querying, where data from multiple APIs or formats must be combined into a single result set.