IBM Quantum Schemas

This repository contains the Pydantic models that describe the inputs and outputs of IBM Quantum primitives and programs, to allow easier programmatic interfacing from Python.

The resulting ibm-quantum-schemas Python package contains the versioned definition of such inputs and outputs, using the following structure:

ibm_quantum_schemas.<program>.version_<x_y>

Please note:

this package contains multiple versions of the models, using semantic versioning in the last component of the module name (.version_<x_y>).
when a new version is in development, it will contain a _dev suffix for signalling it (.version_<x_y>_dev). Such versions are not considered stable yet.
other (non _dev) versions included in releases of this package are considered stable, albeit not all of them might be supported by the IBM Quantum platform at a given time. In particular, the programs included in the initial release of this library (executor and noise_learner_v3) are considered beta and not yet supported.
please refer to the Qiskit Runtime REST API for the programs and their versions supported by the IBM Quantum platform.

History

[!WARNING] The purpose of this repository has changed. Prior to October 2025, the repository hosted JSONSchema files that dictated the request and response payloads for the primary IBM Quantum API payloads that allowed interacting with devices. Primarily, the Qobj, backend configuration, backend properties, pulse defaults, and result schemas.

Development Status
- 3 - Alpha
Intended Audience
- Developers
Programming Language

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