Mars Finance reported on February 13th that Coinbase Developer Platform (CDP) announced the launch of an SQL API supporting x402 payments. This allows AI agents to access Coinbase's index data, including blocks, transactions, token transfers, and decoding events, and make payments on demand without API keys, account registration, or human intervention. Each SQL query costs a fixed $0.10, settled instantly on-chain via USDC. The x402 protocol simplifies the payment process: the agent receives a 402 error response to obtain a payment request, signs a USDC payment certificate, and then directly obtains the query results.
Coinbase launches CDP SQL API supporting x402 payments, enabling AI agents to autonomously acquire on-chain data.
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