Report whether a valid Nexus session exists.

Return the authenticated Nexus user.

List available backends and their status.

Report whether a device is online. Emulators/syntax checkers are always available.

List Nexus projects visible to the user (one page of up to limit, plus the total count).

Optional name_like substring filter; set archived to list archived projects instead.

Return remaining compilation/simulation quotas.

List jobs visible to the user (one page of up to limit, plus the total count).

Optional filters: exact project name, status (e.g. COMPLETED, RUNNING, ERROR), and a name_like substring. Occasionally returns a Nexus-side server error unrelated to your request; if so, use nexus_job_status / nexus_get_results by id instead of retrying this call.

Return the status of a job by id.

Return the HQC cost of an existing job by id.

Return measurement counts for a completed job by id.

Counts are capped at the top --max-outcomes outcomes by frequency; total_outcomes / omitted_outcomes / omitted_shots report any truncation. Multi-circuit (batch) jobs return one entry per circuit under items, in submission order.