Course / Level 4
Level 4
Transactable
An agent can complete commercial transactions end-to-end on a customer's behalf.
Level 4 is where an agent stops requesting a quote and starts paying for one. It splits into being priceable (4a) — structured, real-time pricing an agent can read without scraping — and being payable (4b) — completing an authorized transaction through a recognized agentic-commerce protocol, with cryptographic proof that a real human authorized this exact cart and amount.
This is a meaningful build, and most businesses won't reach it until Levels 1–3 are stable and an agent-driven sales channel is actually real. The material here is still being developed alongside the commerce protocols themselves, which are moving quickly.
This level’s lessons are part of the course.
These lessons need an active enrollment. One payment unlocks every level — and Level 0 stays free for everyone. Already enrolled? Log in to pick up where you left off.
6 steps in this level
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Step 1
A machine-readable catalog
A product catalog conforming to a recognized agentic-commerce schema (ACP / UCP).
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Step 2
Real-time pricing & inventory
Live prices with ISO 4217 currency, server-side tax, and real availability states.
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Step 3
A commerce protocol
At least one of ACP, UCP, AP2, or x402 with a discovery surface agents can find.
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Step 4
Payment tokens & consent proof
Scoped single-use payment tokens and verifiable consent bound to cart and amount.
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Step 5
Agent identity & audit trails
Agent wallet identity with delegation, and audit trails linking human → agent → transaction.
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Step 6
Recap
What changed, why it matters, and how to package this level into a service you can sell.