# PennyLane Catalyst

**Canonical:** https://apis.io/apis/xanadu-ai/pennylane-catalyst/  
**Provider:** Xanadu — https://apis.io/providers/xanadu-ai/  
**Documentation:** https://docs.pennylane.ai/projects/catalyst

PennyLane Catalyst is one of 14 APIs that [Xanadu](https://apis.io/providers/xanadu-ai/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Compilers, JIT, MLIR, and QIR. The published artifact set on APIs.io includes API documentation and a GitHub repository.

Catalyst is a JIT compiler for hybrid quantum programs written in PennyLane. The `@qjit` decorator compiles entire quantum-classical workflows — including conditionals, loops, and gradients — to a custom MLIR quantum dialect, then lowers to LLVM and QIR for execution against Lightning, AWS Braket, and an expanding set of QPUs. Apache 2.0.

## Machine-readable artifacts (3)

- **Documentation** — https://docs.pennylane.ai/projects/catalyst/en/stable/
- **GitHubRepository** — https://github.com/PennyLaneAI/catalyst
- **SDKs** — https://pypi.org/project/PennyLane-Catalyst/

## Other Xanadu APIs (12)

- [PennyLane](https://apis.io/apis/xanadu-ai/pennylane/)
- [PennyLane Lightning](https://apis.io/apis/xanadu-ai/pennylane-lightning/)
- [PennyLane Plugins](https://apis.io/apis/xanadu-ai/pennylane-plugins/)
- [PennyLane Quantum Chemistry (qchem)](https://apis.io/apis/xanadu-ai/pennylane-qchem/)
- [PennyLane Datasets](https://apis.io/apis/xanadu-ai/pennylane-datasets/)
- [Strawberry Fields](https://apis.io/apis/xanadu-ai/strawberry-fields/)
- [MrMustard](https://apis.io/apis/xanadu-ai/mrmustard/)
- [The Walrus](https://apis.io/apis/xanadu-ai/thewalrus/)
- [Jet](https://apis.io/apis/xanadu-ai/jet/)
- [FlamingPy](https://apis.io/apis/xanadu-ai/flamingpy/)
- [Blackbird Language](https://apis.io/apis/xanadu-ai/blackbird/)
- [XIR](https://apis.io/apis/xanadu-ai/xir/)

## Tags

Compilers, JIT, MLIR, QIR

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/xanadu-ai/pennylane-catalyst/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/xanadu-ai/.