docs.ionq.com

# IonQ Quantum Cloud Documentation ## Docs - [Get Backends](https://docs.ionq.com/api-reference/v0.3/backends/get-backends.md): Retrieve a list of all available backends. - [Get a Characterization](https://docs.ionq.com/api-reference/v0.3/characterizations/get-a-characterization.md): This endpoint retrieves a characterization. - [Get All Backend Characterizations](https://docs.ionq.com/api-reference/v0.3/characterizations/get-all-backend-characterizations.md): This endpoint retrieves an array of all available backend characterizations, with pagination. - [Get the Most Recent Backend Characterization](https://docs.ionq.com/api-reference/v0.3/characterizations/get-the-most-recent-backend-characterization.md): This endpoint retrieves the most recent backend characterization data available. - [API Core Concepts](https://docs.ionq.com/api-reference/v0.3/core-concepts.md) - [v0.3 Error Codes](https://docs.ionq.com/api-reference/v0.3/error-codes.md) - [Introduction](https://docs.ionq.com/api-reference/v0.3/introduction.md) - [Cancel a Job](https://docs.ionq.com/api-reference/v0.3/jobs/cancel-a-job.md): Cancel the execution of a single job by ID. - [Cancel many Jobs](https://docs.ionq.com/api-reference/v0.3/jobs/cancel-many-jobs.md): Cancel the execution of many jobs at once by passing a list of jobs. - [Create a Job](https://docs.ionq.com/api-reference/v0.3/jobs/create-a-job.md): To submit a program to be simulated or executed on our quantum hardware, `POST` it to the `jobs` endpoint. For `ionq.circuit.v0` multi-circuit payloads, each entry in `input.circuits` inherits the parent `gateset` unless the circuit provides its own override. - [Delete a Job](https://docs.ionq.com/api-reference/v0.3/jobs/delete-a-job.md): Permanently delete a job from our service. This cannot be undone. - [Delete many Jobs](https://docs.ionq.com/api-reference/v0.3/jobs/delete-many-jobs.md): Permanently remove many jobs from our platform. This cannot be undone. - [Get a specific Job](https://docs