IonQ v0.4 API
API v0.4 Reference
The IonQ Quantum Cloud API lets you submit quantum circuits, manage jobs, and access quantum computing resources programmatically.
🎉 API v0.4 is now available in beta! Check out the migration guide to for a high-level overview. This is only available to select customers today, but reach out to [email protected] to have it enabled for your organization.Note that during the beta, resources are subject to change as we gather bug reports and feedback. Please let us know if you run into any bugs or have other feedback for us. Send bug reports to [email protected] or feel free to drop a report in the Community Slack.
Quick Start
- New to IonQ? Most users start with an SDK like Qiskit rather than calling the API directly.
- Migrating from v0.3? Check our migration guide for breaking changes and new features.
- Need help? Join our community Slack or contact [email protected].
What’s New in v0.4
- Enhanced cost tracking - New dedicated endpoint for job billing details
- Improved results structure - Cleaner separation of job metadata and probability data
- Better backend organization - Characterizations now nested under backends
- Streamlined pagination - Consistent filtering across list endpoints