qubo-x402-engine

Diamondnode QUBO C-Kernel + x402 Dual Revenue Streams

High-performance, constraint-compliant C kernel for Quadratic Unconstrained Binary Optimization (QUBO) energy minimization via simulated annealing / Metropolis sweeps. Packaged as Grok Marketplace Plugin with native HTTP 402 / x402 micropayment gate.

Constraints Honored

• Every C function < 25 lines
• Nesting depth ≤ 2
• No naked unmanaged dynamic allocation (static MAX_QUBO_SIZE arrays)
• Single responsibility per function

Dual Revenue Streams

1. x402 Pay-Per-Execution: /v1/solve-qubo returns 402 until valid x402-token header presented. Price: 0.001 USD / call.
2. Marketplace License: Token-gated premium plugin with metered usage tracking.

Build

make

Marketplace Registration (conceptual)

grok plugin marketplace add repo/qubo-x402-engine
grok plugin install qubo-x402-engine --trust

Genesis Conductor Integration

• agentregistry publish
• trace-consent ledger on every solve
• maru guard on R>0.4
• diamondnode-qubo-economics-strategist for treasury QUBO formulations
• Stripe metered billing backend for production tokens
• Ambient Access Layer ready

Objective Advance

Accelerates Financial Infrastructure revenue streams (Stream A: x402 micro, Stream B: marketplace license) toward $70k/mo targets via high-VPD computational infrastructure product.