What is agentic commerce?
For the web’s whole history, a human stood at the end of every purchase — entering a card, clicking "buy", approving a subscription. Agentic commerce removes that assumption. An AI agent, given a goal and a budget, can find a service, learn its price, pay for it and use it, all on its own. The missing piece was never intelligence; it was a way for software to pay in small amounts, instantly, without a human. Machine-native rails like x402 supply exactly that.
The agentic commerce stack
A working agentic transaction touches four layers. mpp.best tracks open-source projects across all of them.
Agent frameworks
Reasoning and orchestration — LangChain, MCP, custom agents that decide what to buy and when.
Agent wallets
Programmable wallets (e.g. Coinbase AgentKit) that hold funds and sign payments autonomously.
Payment protocol
x402 / HTTP 402 to price requests, plus facilitators to verify and settle them.
Merchant endpoints
APIs, tools and services that return a 402 and accept agent payments instead of API keys.
How a purchase happens
- Goal. The agent decides it needs a resource — data, an API result, compute.
- Discover & price. It requests the resource and receives an HTTP 402 with the price in USDC.
- Pay. Its wallet signs the on-chain payment on Base.
- Receive. It retries with proof and gets the resource — in about two seconds, with no human.
Try it concretely with the free 402 response builder, or read the deeper x402 protocol guide.
Frequently asked questions
What is agentic commerce?
Agentic commerce is economic activity carried out by autonomous AI agents — software that can discover services, negotiate, and pay for them on a user’s behalf without manual checkout. It relies on machine-native payment rails like the x402 protocol so agents can transact in stablecoins programmatically.
How do AI agents buy things autonomously?
An agent holds a wallet, finds a priced resource, receives an HTTP 402 challenge describing the cost, pays in USDC on-chain, and retries with proof of payment. Because the whole exchange is plain HTTP plus a stablecoin transfer, no human checkout or card is needed.
What infrastructure does agentic commerce need?
Four layers: agent frameworks (to reason and act), agent wallets (to hold and sign), a payment protocol such as x402 (to charge and settle), and merchant/API endpoints that accept agent payments. mpp.best catalogs open-source projects across all of these.
Is agentic commerce only for crypto?
The settlement layer today is typically USDC, a dollar stablecoin, chosen for instant finality and sub-cent fees rather than speculation. For the human at the end, it behaves like paying in dollars; the crypto rail is an implementation detail the agent handles.
Go deeper: AI agent payments, agent wallets, MCP payments, or browse all 1211 x402 projects.