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Quantum error-correction feasibility: success probability, qubit overhead, records, trends.
Remote server: your requests and data go to www.quantum-expectations.com. Claude Code: claude mcp add --transport http quantum-expectations https://www.quantum-expectations.com/api/mcp · Claude app: Settings → Connectors → Add custom connector.
The tools this server listed when we connected to it, in its own words.
compute_expectation — Given a quantum circuit (2-qubit error rate p, qubit count n, depth d, optional connectivity class), compute the effective error rate, succecompute_required_error_rate — Inverse of compute_expectation. Given a circuit (numQubits, compDepth) and an acceptable effective error rate, return the required per-gate compute_fault_tolerant_resources — Given an algorithm stated as (numLogicalQubits, tCount) and a physical error rate (or hardwareId), derive the full surface-code + magic-statcompare_hardware_scenarios — Run the same circuit against several current state-of-the-art hardware entries in one call and return one result block per entry, computed alist_current_quantum_computers — Return the representative-entry table of current state-of-the-art quantum computers (id, hardware type, physical qubit count, 2-qubit error list_quops_scores — Return the measured QUOPS (quantum universal operation performance system, a cross-platform capability benchmark) scores (arXiv:2609.12146):list_hardware_timings — Return per-platform gate-cycle timings (two-qubit (2Q) gate time, readout time, in SI seconds) plus the testbed they were measured on (`reprcompute_quantum_volume_rate — Compute the Quantum Volume Rate (QVR, in Quantum Volume (QV) per second): QVR = V_Q / (log2(V_Q) * t_2Q + t_meas). First-order estimate of hfit_historic_series — Fit a log-linear trend (ln(value) = slope * year + intercept) to one historic series — fidelity or qubit-count — for one hardware type. An alist_example_algorithms — Return the curated list of example quantum algorithms with published resource estimates (qubit count, depth/gate count, source paper URL). Ulist_qldpc_codes — Return the catalog of supported qLDPC (quantum low-density parity-check) error-correction codes (id, label, family, n, k, d, circuitLevelDisget_historic_series — Return the full historic time series — either two-qubit gate error rates ("fidelity") or physical qubit counts ("qubit-count") — broken downget_agent_brief — Return the plain-text site brief describing scope, assumptions, the honesty clause, and the API contract. Mirrors the /agent.txt document seNot tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.