Example library

Runnable Rust programs for models, APIs, databases, typed agents and structured streams.

Pick a program, run the command and adapt the model. Each recipe lists the source path, required features and the result to look for.

Choose a recipe→Run it locally→Adapt the model

Models and protocols

Signup validation, tagged tool calls, borrowed JSON, async checks, dates and Cap’n Proto.

APIs and storage

Axum CRUD, SQLite, PostgreSQL, MySQL and automatic migrations.

Agents and streaming

Offline correction, partial/list streams, resumable graphs, live providers and multimodal inputs.

Follow a tutorial

Build an application step by step with explanations and expected output.

Run from the source checkout

git clone https://github.com/trotsky1997/Rydantic.git
cd Rydantic
cargo run --locked -p rydantic --example data_contract
cargo run --locked -p rydantic-ai --no-default-features --example typed_agent

Use the source revision that matches these docs. Examples added in a pull request preview become available on main after merge. The project is tested with Rust 1.98.1.

Choose your environment

Prerequisite	Examples
Rust and Cargo only	Core models, async checks, offline agents, structured streams and graphs
Bundled SQLite	Local HTTP APIs and migration examples
Cap’n Proto compiler	auto_capnp and generated Rust bindings
A local test database	PostgreSQL/MySQL driver examples
Configured model API	Live providers, image and PDF examples

The offline AI recipes use deterministic demonstration responses. Live recipes use BASEURL, MODEL and optional APIKEY; the Jev recipe requires both TYPESAFE_BASEURL and TYPESAFE_APIKEY. Keep credentials in your local environment.