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IBM Quantum

ibm-quantum Backends API

The Backends API from ibm-quantum — 5 operation(s) for backends.

Documentation Provider Profile APIs.io OpenAPI GitHub

ibm-quantum Backends API is one of 11 APIs that IBM Quantum publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 3 JSON Schema definitions.

Tagged areas include Backend. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, a JSON-LD context, and 3 JSON Schemas.

This API exposes 5 operations across 5 paths, and defines 19 schemas. It is described by OpenAPI 3.2.0, at version 0.45.3.

Requests are made against 2 base URLs: https://quantum.cloud.ibm.com/api, https://eu-de.quantum.cloud.ibm.com/api.

5 operations 5 paths 19 schemas 5 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
0.45.3
Servers
https://quantum.cloud.ibm.com/api
https://eu-de.quantum.cloud.ibm.com/api
Authentication
HTTP Bearer, API Key, API Key
Contact
IBM Quantum
License
IBM
Resource Areas
1

Authentication & Security 3

ibm-quantum Backends API declares 3 security schemes for authenticating requests. It accepts HTTP bearer tokens (BearerAuth). An API key is passed in the header as Service-CRN (ServiceCRN). An API key is passed in the header as IBM-API-Version (ApiVersion). By default, every request must be authenticated.

  • BearerAuth — IBM Cloud IAM bearer token
  • ServiceCRN — IBM Cloud Service CRN identifying the Qiskit Runtime instance
  • ApiVersion — API version, e.g. 2026-03-15

Paths & Operations 5

Across 5 paths, the API surfaces 5 operations — 5 GET. Each is listed below with its method, path, parameters, and response codes.

Backends 5
GET
/v1/backends
List Your Backends
list_backends 2 params → 200
GET
/v1/backends/{id}/properties
Get Backend Properties
get_backend_properties 4 params → 200
GET
/v1/backends/{id}/configuration
Get Backend Configuration
get_backend_configuration 3 params → 200
GET
/v1/backends/{id}/status
Get Backend Status
get_backend_status 2 params → 200
GET
/v1/backends/{id}/defaults
Get Backend Default Settings
get_backend_defaults 2 params → 200

Schemas 19

The contract defines 19 schemas that model the data the API accepts and returns. The most detailed are BackendConfigurationResponse (49 properties), GateConfig (7 properties), BackendPropertiesResponse (6 properties), BackendStatusResponse (5 properties). Each schema is shown below with its type and property counts.

BackendPropertiesResponse
object
6 properties 6 required
BackendStatusResponse
object
Backends Status Response
5 properties 1 required
ClopsType
object
2 properties 2 required
TwoQErrorLayered
object
2 properties 1 required
GateConfig
object
The definition of a gate
7 properties 3 required
GateProperties
object
3 properties 3 required
ProcessorType
object
The processor type of this backend
3 properties 2 required
UChannelLOItem
object
The description of a single U Channel LO in terms of qubit LO's
2 properties 2 required
BackendDefaultsResponse
object
Backends Defaults Response
BackendsResponse
object
Backends Response
1 property 1 required
TwoQErrorBest
object
4 properties 3 required
BackendConfigurationResponse
object
Backends Configuration Response
49 properties 12 required
Hamiltonian
object
Hamiltonian of the backend
4 properties 1 required
PerformanceMetrics
object
4 properties
ComplexNumber
object
1 property 1 required
ReadoutErrorMedian
object
2 properties 1 required
BackendPropertiesNduv
object
4 properties 4 required
TwoQErrorMedian
object
2 properties 1 required
TimingConstraints
object
The timing constraints on this backend
4 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

ibm-quantum-backends-api-openapi.yml Raw ↑

Other APIs IBM Quantum publishes across the network.

Qiskit Functions Catalog API
AE Profile APIs.io
Qiskit Transpiler as a Service API
AE Profile APIs.io
ibm-quantum Accounts API
AE Profile APIs.io
ibm-quantum Analytics API
AE Profile APIs.io
ibm-quantum Instances API
AE Profile APIs.io
ibm-quantum Jobs API
AE Profile APIs.io
ibm-quantum Sessions API
AE Profile APIs.io
ibm-quantum Tags API
AE Profile APIs.io
ibm-quantum Versions API
AE Profile APIs.io
ibm-quantum Workloads API
AE Profile APIs.io
#Backend
← Back to I APIs
API Details
ID
ibm-quantum:ibm-quantum-backends-api
Server
https://quantum.cloud.ibm.com/api
Docs
https://quantum.cloud.ibm.com/docs/api/qiskit-runtime-rest
Provider
IBM Quantum
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