Finance
Agent Cost Attribution Ledger
Attribute model, tool, and unlock spend to goals, skills, and customers.
LVL LTD — x402 AI Agent Skill Marketplace.
Previously a different brand (retired merch/POD). This site is the current skill market.
Authoritative identity: /status · status.json.
Start here — first unlock under 3 minutes
★ Guided first unlock
$0.05 canary now
Wallet setup (free)
How To guide
Cold-start pack
$49 Revenue OS
Path: Free outline → Buy with USDC on Base → “Verifying on Base…” → sealed pack download. Same payment works forever for re-download. Real sales only: /api/proof · Live activity · Agents: /api/shop · Guides: human How To · agent shopping
Live activity
Loading proof…
Pulling confirmed unlocks from the public ledger (never invented).
Featured Deep skills
View all Deep →
Depth badge = sealed runtime + useful sample. Outline-only hidden by default.
Agent Ops
Agent Ops Control Plane Pack
Unified ops pack: health, limits, secrets, HITL, and cost attribution for fleets.
Commerce
Agent-to-Agent Escrow Pattern
Trust-minimized handoff of funds and deliverables between two agents.
Trust
Buyer Trust Score Builder
Reputation signals for repeat buyers (agent or human) across a marketplace.
Growth
Cold-Start Catalog Bootstrapper
Launch play for a marketplace with zero sales history and empty social proof.
Growth
Competitive Skill Gap Finder
Systematic scan for missing skills in a marketplace catalog.
Trust
Fake Review / Fake Demand Detector
Spot inflated engagement and wash-style demand on marketplace listings.
Finance
Multi-Chain Treasury Reconciler
One true ledger when payments land on more than one chain.
Commerce
On-Chain Refund & Dispute Playbook
Handle buyer disputes when there is no card chargeback—only chain facts.
Agent Ops
Prompt Injection Triage Kit
Recognize and quarantine malicious instructions in tool outputs and fetched content.
Commerce
Subscription-to-x402 Migration Kit
Move a recurring product onto pay-per-unlock rails without losing regulars.
Commerce
x402 Merchant Operating System
End-to-end OS for running an x402 skill market: catalog, proof, disputes, and growth.
Agent Ops
Agent Credential Vault Pattern
Least-privilege secret storage and rotation for agents holding API keys and wallets.
Agent Ops
Agent Health Check Protocol
Heartbeat and liveness checks so orchestrators detect silent sub-agent death.
Growth
Agent-Readable SEO Kit
Structure catalog.json and agent.json so shopping agents can rank listings.
Finance
Confirmed-vs-Provisional Revenue Classifier
Rules for when crypto unlocks count as real revenue vs still provisional.
Finance
Gas Fee Forecaster (Base)
Estimate Base gas spend for a month of unlocks and agent txs.
Agent Ops
Human-in-the-Loop Approval Gate
Block irreversible agent actions until a human signs a structured approve payload.
Trust
Sealed Payload Integrity Checker
Verify data_hash matches delivered sealed content before trusting an unlock.
Commerce
Wallet Onboarding for Non-Crypto Buyers
Exact human path: MetaMask + Base USDC without abandoning cart.
Commerce
x402 Retry Idempotency Kit
Safe retries after flaky 402 unlocks without double-spend logic errors.
Commerce
Add x402 USDC Checkout to Your Site
Ship the same Base USDC x402 pay → verify → sealed unlock pattern LVL runs on lvlltd.com, swarm, and music — challenge, receipt, and unlock routes without inven
Trust
Agent Auditor
Compliance-ready audit trails: who authorized, what ran, what was paid, what evidence remains.
Agent Ops
Agent Context Budget Slicer
Allocate context windows across tools, memory, and goal state under a hard token cap.
Showing 24 of 151 for first paint (no freeze). Full list: static catalog · HTML listings · catalog.json. Enable JS for search, depth filters, and load-more.
Agents/crawlers: prefer /catalog.json, /api/shop, /fleet.json. This page also SSR-embeds the skill list for plain HTTP GET.