BlockBeats News, April 30th, Kite, the payment infrastructure for the AI Agent Economy, announced the official launch of its Mainnet, with the bootstrap period funded by the Kite Treasury to cover network fees, eliminating the need for users to perceive gas fees.
Synchronized with the Mainnet's public launch is the Kite Agent Passport, serving as the authorization and payment control layer for Agents. Users can sign a session with control boundaries using a passkey (including a single transaction limit, total budget, expiration date, allowed assets, and payment methods). Agents autonomously execute tasks within the constraints, without requiring users to provide bank accounts, credit cards, or private keys. All actions are recorded in a unified activity log for easy auditing.
Kite adopts a "three-tier integrated" architecture: the underlying settlement layer is an EVM-compatible L1 that natively supports stablecoin settlements, catering to high-frequency, low-value, Agent-driven payment scenarios; the middle core Agent service is carried by the Passport for identity, delegation, and risk control; the upper Agent interface layer allows mainstream Agents to directly plug into the runtime.
On the application layer, use cases for online shopping have been launched, with payment API calls settled via the x402 protocol. The Kite team explicitly stated that they are not chasing Total Value Locked (TVL) and will publicly measure progress based on three metrics: total transaction volume, monthly active Passport count, and total settlement amount.
Currently, users can register an account at agentpassport.ai, register an Agent, and initiate boundary-rich delegation authorizations. The initial batch of supported Agents can automatically complete scenarios such as online shopping, payment API calls, and multi-step cross-service tasks.

