What happened
Base, the Coinbase-incubated Ethereum L2, said AI agents transacted 3. 1 million times over the x402 payment protocol in the trailing 30 days. The disclosure, surfaced Thursday and reported by CryptoBriefing, frames the traffic as autonomous software paying for internet services using onchain wallets and stablecoins rather than card rails or API keys tied to a human account.
x402 is Coinbase's revival of the dormant HTTP 402 'Payment Required' status code, repurposed as a standard for machine-to-machine settlement. An agent hits an endpoint, the server returns a 402 with a price quote, the agent's wallet signs and broadcasts a stablecoin payment, and the server releases the response. Base did not break out unique agent wallets or median transaction size in the figure cited.
Why it matters
3. 1 million payments in a month is not a demo number. It's the first time a major L2 has put a production readout on agentic commerce that's large enough to argue the category exists outside conference slides.
The shape of the traffic matters more than the headline. Agents paying per-call for an API, per-token for an LLM response, or per-query for a data feed is exactly the workload card networks handle badly and stablecoin rails handle cheaply. If Base's number is real and the curve holds, the fee accrual goes to stablecoin issuers, the Base sequencer, and any wallet infrastructure standing between an agent and the chain.
The contrarian read: 3. 1 million payments split across a small number of high-frequency agents is a different business than 3. 1 million split across a long tail of services.
Base hasn't disclosed which it is.