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QuantZK Control docs ​

QuantZK Control is the AI Spend Firewall for production agents. Start with Control, protected gateway deployment, and reconciliation. Reach for QZR and VDI when you need portable evidence or independent verification.

Start here ​

  1. AI Spend Firewall: what buyers purchase and why Control leads
  2. Machine spend control plane: Control to gateway to reconciliation to optional evidence
  3. Design partner pilot: paid pilot scope, protected path, and success criteria
  4. Quick start: @quantzk/sdk authorize → record → verify
  5. API billing pilot: authorize + attest + verify for the receipt layer
  6. LiteLLM adapter: gateway usage callbacks into QuantZK receipts
  7. QZR-1 receipt spec: portable .qzk Minimal / Standard / Strict
  8. Charge authority: prior grant to charge continuity, not gateway enforcement
  9. Verify CLI: npx @quantzk/verify
  10. Trust model: receipts, verifier sets, profiles, transparency
  11. Security model: threat model, artifact governance, review notes
  12. Architecture: protocol and product boundary diagrams

What is QuantZK? ​

QuantZK sells Control first. It puts hard financial policy on autonomous workloads across providers, blocks unauthorized spend on the protected execution path, and reconciles every charge afterward.

QZR receipts, Charge Authority, and VDI are the supporting protocol layers. They matter when a deployment needs portable evidence, offline verification, or dispute support. They are not the purchase trigger.

Who is this for? ​

  • Head of AI Platform / AI Infrastructure: control what production agents may consume
  • FinOps / Cloud Cost: compare AUTHORIZED, EXPECTED, OBSERVED, and BILLED before money quietly drifts
  • Security and platform teams: isolate provider credentials and keep the protected path explicit
  • Engineers integrating receipts: add portable evidence only when the deployment needs it

Core concepts ​

ConceptWhat it does
QuantZK ControlCommercial product. AI Spend Firewall for production agents
Gateway deployment levelsSDK-controlled, gateway-controlled, credential-isolated, and egress-restricted rollout tiers
ReconciliationKeep AUTHORIZED, EXPECTED, OBSERVED, and BILLED separate so discrepancies stay visible
QZR-1 receipt (.qzk)Portable billing evidence envelope for teams that need offline verification
Charge AuthoritySigned prior grant that binds authorization continuity to the charge
VDIBroader proof architecture behind the portable evidence layer

Documentation ​

GuideDescription
AI Spend FirewallProduct story, buyer, and Control-first messaging
Machine spend control planeControl, gateway, reconciliation, and deployment levels
Design partner pilotPaid pilot scope, rollout shape, and success criteria
Quick startSDK record + QZR-1 verify path
API billing pilotLocal two-call HTTP runbook for portable receipts
@quantzk/sdkIntegrator SDK
LiteLLM adapterLLM gateway usage to receipts
QZR-1Portable receipt spec for offline verification
Charge authorityPrior grant to charge continuity and non-claims
Trust modelReceipts, verifier sets, profiles, transparency
Security modelThreat model and artifact governance
FAQCommon questions

Key qualification ​

QuantZK Control claims depend on deployment level. SDK-controlled installs gate the wrapped callback only. Gateway-controlled and credential-isolated deployments provide stronger enforcement. Egress restriction is a separate network control. Portable receipts remain optional supporting evidence, not a substitute for protected path enforcement or completed third-party audit work.

QuantZK Control docs: gateway, reconciliation, and optional portable evidence.