According to CoinMeta, the x402 protocol under Coinbase has been launched on Injective, and AI agents can now pay service fees autonomously. This protocol enables AI agents to pay API call fees in real-time without the need for an account, subscription, or human intervention. The system utilizes the long-term reserved HTTP 402 status code "payment required" to construct the payment process, which can be completed with just one HTTP interaction, thereby reducing operational complexity. Injective features single-block settlement, deterministic finality, and a latency of about 650 milliseconds, allowing agents to complete payments before making their next decision.