{"ok":true,"kind":"lesson","integrity":{"knowledge":"free","capability":"paid_x402_optional","rule":"Every concept on a path is fully teachable without purchase. Skills are optional implementations, never required reading.","display":"Learn free. Buy only if you want a ready-to-run sealed pack."},"lesson":{"schema_version":"lvl-knowledge-lesson-v1","id":"path-ae-01-what-is-agent-commerce","category":"path","path_ids":["understand-agent-economy"],"title":"What is agent commerce?","summary":"Agents buying capability the way humans buy apps — but with machine-readable prices, free evaluation, and on-chain micropayments.","body":"## The shift\n\nFor decades software was sold as seats and subscriptions. Agents do not want monthly plans for every tool. They want **priced units of capability**: discover → evaluate → pay → use → prove.\n\n## Agent commerce in one sentence\n\nA machine finds a capability, checks a free sample, pays a small amount in stablecoin, and receives a sealed implementation it can run under its own keys.\n\n## Why it is different from “API keys”\n\n| Old model | Agent commerce model |\n|-----------|----------------------|\n| Sign up, card on file | HTTP 402 challenge with exact amount |\n| Opaque rate limits | Public price + free outline first |\n| Trust the vendor’s dashboard | Optional public proof of confirmed unlocks |\n\n## What you will see on LVL\n\n- A **catalog** of skills (JSON + human UI)\n- **Free outlines** so decisions happen before money moves\n- **x402** payment challenges on Base USDC\n- **Sealed packs** only after verified payment\n\n## Knowledge vs capability\n\nUnderstanding this model is free. Buying a sealed pack is optional. You can finish every learning path without spending a cent.\n\n## Takeaway\n\nAgent commerce is pay-per-capability with evaluation-before-pay and machine-native discovery — not a chatbot wrapper around a SaaS login.","concepts":["agent-commerce","micropayments","evaluation-before-pay"],"related_skills_optional":[{"skill_id":"agent-x402-first-buy","name":"Agent x402 First Buy","price_usd":0.05,"price_label":"$0.05 / unlock","summary":"$0.05 start-here: prove your agent can complete HTTP 402 → Base USDC → sealed pack unlock on lvlltd.com.","outline":"https://lvlltd.com/skills/agent-x402-first-buy/outline.json","challenge":"https://lvlltd.com/api/pay?skill=agent-x402-first-buy","listing":"https://lvlltd.com/listings/agent-x402-first-buy/","available":true,"optional":true,"label":"optional_implementation"}],"sort_order":10,"estimated_minutes":8,"last_updated":"2026-07-22T12:00:00.000Z","freshness":{"last_updated_at":"2026-07-22T12:00:00.000Z","days_since_update":0,"band":"fresh","score_0_100":95,"label":"Fresh","display":"Fresh · updated 2026-07-22 (0d ago)"},"integrity":{"knowledge_free":true,"skills_optional":true,"note":"This lesson is complete without purchasing any skill."},"related_bundles_optional":[],"url":"https://lvlltd.com/learn/lessons/path-ae-01-what-is-agent-commerce/","updated_at":"2026-07-22T21:10:40.587Z"},"note":"Knowledge free. related_skills_optional are implementations, not requirements."}