Quantum Expectations

Connect Remote server

claude mcp add --transport http quantum-expectations https://www.quantum-expectations.com/api/mcp

{
  "mcpServers": {
    "quantum-expectations": {
      "url": "https://www.quantum-expectations.com/api/mcp"
    }
  }
}

{
  "servers": {
    "quantum-expectations": {
      "type": "http",
      "url": "https://www.quantum-expectations.com/api/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://www.quantum-expectations.com/api/mcp

Tools 13 found in our last check

• compute_expectation

  Given a quantum circuit (2-qubit error rate p, qubit count n, depth d, optional connectivity class), compute the effective error rate, success probability, and optional surface-code or qLDPC (quantum low-density parity-check) overhead. Without error correction a 2d-lattice conne…

• compute_required_error_rate

  Inverse of compute_expectation. Given a circuit (numQubits, compDepth) and an acceptable effective error rate, return the required per-gate logical error rate (requiredLogicalErrorRatePerGate: a number, or null only when the target is genuinely unreachable; never 0) and, for eve…

• compute_fault_tolerant_resources

  Given an algorithm stated as (numLogicalQubits, tCount) and a physical error rate (or hardwareId), derive the full surface-code + magic-state-distillation footprint from the general laws of the Litinski lattice-surgery cost model (no per-scenario constants): distillation factory…

• compare_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 at that entry's error rate and connectivity class (the result blocks carry no minimum runtime and take no connectivity override). Defaults t…

• list_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 rate, connectivity class with a note on the coupling graph, source URL). Same data that powers the website's "Current Quantum Computers" ta…

• list_quops_scores

  Return the measured QUOPS (quantum universal operation performance system, a cross-platform capability benchmark) scores (arXiv:2609.12146): per device, the largest random universal circuit size executed at polarization >= 1/sqrt(e) inside the cone w^2 <= s <= w^3, with width, Q…

• 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 (`representativeDevice`) and the native 2Q gate name, with source URLs. Joins list_current_quantum_computers via `hardwareType`, but the numbers…

• compute_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 how fast a device prepares one QV-sized square circuit (one native 2Q gate per QV layer + one end-of-circuit measurement). OVERSTATES achiev…

• fit_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 atomic primitive for "when might hardware reach X?" questions; with targetValue it returns the year the fit reaches that value. residualStdD…

• list_example_algorithms

  Return the curated list of example quantum algorithms with published resource estimates (qubit count, depth/gate count, source paper URL). Useful for comparing what algorithms need vs. what hardware can deliver. Each entry carries a `provenance` field: 'published-circuit' means…

• list_qldpc_codes

  Return the catalog of supported qLDPC (quantum low-density parity-check) error-correction codes (id, label, family, n, k, d, circuitLevelDistance, ancilla counts, roundsPerLogicalOp, threshold, fitCoefficients {c0, c1, c2}, logicalErrorExponent [alpha = d_circ/2], source URLs, p…

• get_historic_series

  Return the full historic time series — either two-qubit gate error rates ("fidelity") or physical qubit counts ("qubit-count") — broken down by hardware type. Each datapoint carries a source URL. It is the raw data behind trend questions such as "when might hardware reach X?"; f…

• get_agent_brief

  Return the plain-text site brief describing scope, assumptions, the honesty clause, and the API contract. Mirrors the /agent.txt document served by the website.

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