I do this but it still gives an error for load account

  • IBMQ.delete_account()
  • IBMQ.active_account()
  • IBMQ.save_account('myAPI toke ')
  • IBMQ.save_account('my API toke')
  • IBMQ.load_account()

entire error

HTTPError Traceback (most recent call last) C:\111\lib\site-packages\qiskit\providers\ibmq\api\session.py in request(self, method, url, bare, **kwargs) 277 response = super().request(method, final_url, headers=headers, **kwargs) --> 278 response.raise_for_status() 279 except RequestException as ex:

C:\111\lib\site-packages\requests\models.py in raise_for_status(self) 1020 if http_error_msg: -> 1021 raise HTTPError(http_error_msg, response=self) 1022

HTTPError: 403 Client Error: Forbidden for url: https://auth.quantum-computing.ibm.com/api/version

The above exception was the direct cause of the following exception:

RequestsApiError Traceback (most recent call last) ~\AppData\Local\Temp\ipykernel_297760\485379158.py in ----> 1 IBMQ.load_account()

C:\111\lib\site-packages\qiskit\providers\ibmq\ibmqfactory.py in load_account(self) 175 # Explicitly check via a server call, to allow environment auth URLs 176 # contain IBM Quantum Experience v2 URL (but not auth) slipping through. --> 177 version_info = self._check_api_version(credentials) 178 179 # Check the URL is a valid authentication URL.

C:\111\lib\site-packages\qiskit\providers\ibmq\ibmqfactory.py in _check_api_version(credentials) 442 version_finder = VersionClient(credentials.base_url, 443 **credentials.connection_parameters()) --> 444 return version_finder.version() 445 446 def _initialize_providers(

C:\111\lib\site-packages\qiskit\providers\ibmq\api\clients\version.py in version(self) 47 * api-* (str): The versions of each individual API component 48 """ ---> 49 return self.client_version_finder.version()

C:\111\lib\site-packages\qiskit\providers\ibmq\api\rest\root.py in version(self) 100 """ 101 url = self.get_url('version') --> 102 response = self.session.get(url) 103 104 try:

C:\111\lib\site-packages\requests\sessions.py in get(self, url, **kwargs) 598 599 kwargs.setdefault("allow_redirects", True) --> 600 return self.request("GET", url, **kwargs) 601 602 def options(self, url, **kwargs):

C:\111\lib\site-packages\qiskit\providers\ibmq\api\session.py in request(self, method, url, bare, **kwargs) 298 self._modify_chained_exception_messages(ex) 299 --> 300 raise RequestsApiError(message, status_code) from ex 301 302 return response

I perform this operation, but again it gives an error for load account

  • $\begingroup$ Hi and welcome to Quantum Computing SE. Please avoid posting screenshots, rather paste the code and error message to proper environment in the question. $\endgroup$ Commented Feb 7, 2023 at 6:56
  • $\begingroup$ Can you post the entire error message? $\endgroup$ Commented Feb 7, 2023 at 8:51
  • $\begingroup$ @Junye Huang Yes of course $\endgroup$
    – maria
    Commented Feb 8, 2023 at 6:07
  • $\begingroup$ Which qiskit version are you using? Can you post the code (with anonymised API toke, of course)? $\endgroup$ Commented Feb 8, 2023 at 6:56
  • $\begingroup$ @Michele Amoretti I'm using version 0.39.3, I reposted the codes in the question, do you need anything else? $\endgroup$
    – maria
    Commented Feb 8, 2023 at 16:48

1 Answer 1


I suggest to install the latest version of qiskit and follow the documentation you can find here, about the class IBMProvider: https://github.com/Qiskit/qiskit-ibm-provider

Here is an example program:

# This code works with qiskit 0.41.0

# Import Qiskit
from qiskit import QuantumCircuit, ClassicalRegister, QuantumRegister, QiskitError
from qiskit import execute
from qiskit_ibm_provider import IBMProvider
from qiskit_ibm_provider import least_busy


    # Create a Quantum Register with 2 qubits.
    q = QuantumRegister(2)
    # Create a Classical Register with 2 bits.
    c = ClassicalRegister(2)
    # Create a Quantum Circuit
    qc = QuantumCircuit(q, c)

    vector = [0.5, 0.5, 0.5, 0.5]

    # Add a Measure gate to see the state.
    qc.measure(q, c)

    # the following instruction must be used the very first time, then commented
    # IBMProvider.save_account(token='MY_API_TOKEN') 

    # the following instruction is the one you will use always
    provider = IBMProvider()

    # display current supported backends
    print(provider.backends(min_num_qubits=5, simulator=False, operational=True))

    small_devices = provider.backends(min_num_qubits=5, simulator=False, operational=True)
    backend = least_busy(small_devices)

    #running the job
    job_exp = execute(qc, backend, shots=2048)
    result_exp = job_exp.result()

    # Show the results
    print('Counts: ', result_exp.get_counts(qc))

except QiskitError as ex:
    print('There was an error in the circuit!. Error = {}'.format(ex))

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.