Coinbase is developing payment infrastructure for AI agents. The x402 protocol supported by the company has received batch settlements—a mechanism that allows many small payments to be combined and settled later on the blockchain.
This solution is designed for the micropayments economy. AI agents will be able to pay for computations, access to models, API requests, and other resources without needing to send each operation as a separate on-chain transaction.
x402 Reduces the Cost of Machine Payments
The update allows payments of less than $0.0001. For regular users, such amounts are almost unnoticeable, but for AI services, this is a key settlement format.
An agent can make hundreds or thousands of requests in a short period. If each of them goes through the blockchain separately, fees quickly make the model unprofitable.
Batch settlements solve this problem. Small payments are confirmed off-chain and then merged into a single final transaction.
How the New Scheme Works
The buyer first deposits ERC-20 tokens in an on-chain escrow. After that, they can sign off-chain vouchers confirming payment for each individual request.
The seller verifies such a voucher, provides the service, and does not send the transaction immediately. Later, they combine multiple confirmations and receive funds in a single blockchain settlement.
This mechanism reduces network load and makes micropayments faster. For AI agents, this is especially important because their operations need to be almost instantaneous.
The Protocol Expands Payments Between Programs
x402 is built around the idea of machine payments. The protocol uses HTTP code “402 Payment Required,” which was originally intended for paying for access to digital resources.
Now this logic is getting practical application. An AI agent can request a service, automatically sign the payment, and receive the result without manual user involvement.
This approach could become the basis for a new internet economy where programs independently purchase data, computations, and services.
Coinbase Connects AI and Blockchain
The development of x402 fits into Coinbase’s broader strategy. The company is increasingly building infrastructure for autonomous agents that will be able to work with wallets and digital assets.
Recently, Amazon Web Services connected x402 and Coinbase’s wallet infrastructure for AI payments in USDC on Base and Solana. This allows agents to conduct operations without direct access to private keys.
This is an important step for the market. Major technology platforms are beginning to test blockchain not as a standalone product but as a settlement layer for automated services.
Support Is Not Limited to USDC
The new x402 feature works not only with stablecoins. The protocol supports any ERC-20 tokens, which expands use cases.
This gives developers more flexibility. AI agents will be able to work with different assets within the Ethereum ecosystem, not just digital dollars.
Currently, x402 is available for TypeScript and Go. The Python version is being prepared for launch, which is important for AI application developers.
Companies Are Building Rails for AI Agents
Coinbase is not the only player in this direction. Circle has introduced tools that allow AI agents to use wallets, find services, and make programmable payments in USDC.
Aptos Foundation and Aptos Labs have also allocated $50 million to develop AI infrastructure. The focus is on on-chain applications, trading systems, and data storage for autonomous agents.
This shows the formation of a new segment. Crypto companies are trying to secure a place in the economy in advance, where transactions will be made not only by people but also by programs.
What This Means for the Market
Batch settlements in x402 solve one of the key problems of AI payments—too high a cost for frequent small operations.
If the technology becomes widespread, blockchain will be able to serve not only large transfers but also a stream of microtransactions between programs.
For Coinbase, this is a chance to gain a foothold in a new infrastructure segment. The AI agent market is just forming, and the payment layer could become one of the main points of competition.
What’s Next?
The next stage is the implementation of x402 in real AI services. An important factor will be Python support, because this language remains the main one in AI application development.
If developers begin to actively use batch settlements, x402 could become one of the standards for machine payments.
For now, this is early infrastructure. But it is precisely such solutions that may determine how AI agents will pay for resources, data, and computations in the future.
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