# Services from quantum.halowerk.com on Zero

> quantum.halowerk.com serves 10 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/quantum.halowerk.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/quantum.halowerk.com/health.json

## Services

- [Quantum Circuit Local Gate Optimizer](https://www.zero.xyz/c/quantum-circuit-local-gate-optimizer-34674a59/llms.txt): $0.004/call via x402. Cancels adjacent identical self-inverse gates on the same qubits and merges adjacent RX/RY/RZ rotation gates on identical targets into single rotations.
- [Shor's Threat Index – Quantum Resource Estimator](https://www.zero.xyz/c/shor-s-threat-index-quantum-resource-estimator-a6ca7ca6/llms.txt): $0.003/call via x402. Estimates logical qubits and gates required to break RSA, DH, or ECC keys using Shor's algorithm, then compares those requirements against caller-supplied hardware capacity to produce capacity and runtime threat ratios.
- [CHSH Bell Inequality / S-Parameter Calculator](https://www.zero.xyz/c/chsh-bell-inequality-s-parameter-calculator-5c0849b9/llms.txt): $0.004/call via x402. Converts raw coincidence counts (++, +−, −+, −−) for four measurement settings into CHSH correlators and computes the S parameter to test Bell inequality violation.
- [Lattice Basis Length Estimator](https://www.zero.xyz/c/lattice-basis-length-estimator-491caa08/llms.txt): $0.003/call via x402. Estimates Gaussian-heuristic and reduced-basis vector lengths in log2 units from a lattice dimension, log2 determinant, and assumed root-Hermite factor — without executing actual lattice reduction.
- [Halowerk Quantum Portfolio QAOA Optimizer](https://www.zero.xyz/c/halowerk-quantum-portfolio-qaoa-optimizer-abed29b8/llms.txt): $0.005/call via x402. Finds the optimal subset of exactly k assets (up to 16) that maximizes expected return minus a risk-aversion-weighted covariance penalty, returning a deterministic classical solution for benchmarking QAOA/QUBO quantum formulations.
- [Halowerk Molecule Pairwise Distance & Lennard-Jones Potential Calculator](https://www.zero.xyz/c/halowerk-molecule-pairwise-distance-lennard-jones-potential-calculator-216ecd8d/llms.txt): $0.004/call via x402. Computes all pairwise interatomic distances and a single-parameter Lennard-Jones 12-6 potential energy for a caller-supplied set of atoms with explicit 3D coordinates, epsilon, and sigma.
- [QKD Sifting and QBER Calculator](https://www.zero.xyz/c/qkd-sifting-and-qber-calculator-f9456812/llms.txt): $0.004/call via x402. Performs quantum key distribution (QKD) sifting by comparing Alice and Bob bases, retains matching-basis positions, computes the quantum bit error rate (QBER) over revealed positions, and returns a digest and count of remaining sifted bits for educational/demonstration purposes.
- [Halowerk Quantum Annealer Schedule Generator](https://www.zero.xyz/c/halowerk-quantum-annealer-schedule-generator-46d47207/llms.txt): $0.002/call via x402. Interpolates a start and end temperature across a specified number of steps using either a linear or geometric progression rule.
- [Halowerk Quantum Bitstream Diagnostic](https://www.zero.xyz/c/halowerk-quantum-bitstream-diagnostic-d2590507/llms.txt): $0.002/call via x402. Analyzes a caller-supplied binary bitstream by counting zeros, ones, and runs, computing a normalized monobit imbalance, and comparing observed run statistics against IID Bernoulli expectations.
- [Quantum Error Correction - Classical Repetition Code Decoder](https://www.zero.xyz/c/quantum-error-correction-classical-repetition-code-decoder-7830c994/llms.txt): $0.003/call via x402. Majority-decodes an odd-length repetition-code bit word to correct a single logical bit error and returns the corrected codeword alongside the XOR syndrome.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

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