Kite Launches Kite Chain and Agent Passport for AI Payments

San Francisco-based Kite announced the launch of its mainnet and the Kite Agent Passport on April 30, 2026, marking a transition from testnet to production for an identity and payment infrastructure built specifically for autonomous AI agents. The announcement, reported by Decrypt, introduces a payments and settlement layer purpose-built for agent-driven transactions.

The infrastructure combines three layers into a single platform: a stable native settlement layer called Kite Chain, a core agent service known as Kite Agent Passport, and the Agent Interface & Experience. This vertically integrated approach distinguishes Kite from competitors who target individual layers of the stack—protocol standards, wallets, or chains—separately.

Here's the core problem Kite is attempting to solve: AI agents can now write code, generate research, and coordinate across tools, but they cannot spend money. When an agent encounters a task requiring a premium API call, a data subscription, or a service purchase, it stops and hands the transaction back to the human. The entire promise of autonomous agents breaks down at the point of payment.

Traditional payment rails weren't designed for this. Credit networks require human identity verification. Bank transfers operate on business-hour settlement cycles. Neither supports the sub-second, micropayment, machine-to-machine transaction patterns that agents operate at. An agent executing a multi-step research workflow might need to make dozens of API purchases in a single session, each costing a fraction of a cent. The checkout-and-confirm model that works for humans doesn't translate to software that operates at machine speed.

Kite Agent Passport gives AI agents a programmable, secure wallet to hold funds and make purchases on behalf of users—while users retain full control over spending limits and authorized destinations. For example, users can purchase physical goods, have them shipped home, and let their agent handle payments, all within Claude, with spending limits enforced by the Passport. The system creates sessions where users define the total budget, per-transaction limit, expiration time, and allowed services or merchants upfront. The agent operates within those specific boundaries. If it tries to go outside those rules, the transaction is blocked.

Passport combines agent identity, user authentication, delegated access, and agent-specific guardrails with a robust, agent-centric payment system. Users do not give agents unlimited payment access. They create sessions with spending rules. Delegations then authorize specific payments inside those rules. Throughout this process, no credit cards or private credentials are involved or exposed. (This is a critical distinction from the blanket access model that has plagued early agent payment experiments.)

Kite Chain serves as a stable native settlement layer, processing payments in digital dollars and connecting to traditional banking systems for everyday consumers. The chain settles using stablecoins, offering sub-cent transaction costs and instant finality. This bypasses the card fees that eat micropayments alive. Agents will need to make hundreds of small calls for a single task; traditional, human-centric payment rails are a dealbreaker for how agents will transact.

Now integrated with over 90 service providers, the platform enables users to explore a wide range of agentic payment use cases—from shopping and travel planning to DIY automated agentic workflows using paid agentic services. The Agent Interface & Experience enables agents and developers to interact with the system through agent registration, agent harnesses, and service discovery.

Kite is positioning itself as a unified hub for major payment protocol standards, including the x402 payment standard, Google's AP2 protocol, Stripe's Machine Payment Protocol (MPP), and Anthropic's Model Context Protocol (MCP). The company is also a member of the Linux Foundation's Agentic AI Foundation (AAIF). This compatibility positions Kite to settle transactions regardless of which standard initiates them.

The competitive landscape is crowded. Coinbase's x402 extends the HTTP 402 status code to enable per-request stablecoin payments between agents and web services. Google's Agent Payments Protocol (AP2) takes a payment-agnostic approach, supporting credit cards, stablecoins, and bank transfers through a role-based architecture with over 60 coalition members, including Mastercard, American Express, and PayPal. Stripe and Tempo co-developed the Machine Payments Protocol (MPP), built around a sessions model where agents pre-authorize a spending limit and stream micropayments that batch-settle into a single onchain transaction.

Kite has raised $35 million in funding led by PayPal Ventures and General Catalyst. Coinbase Ventures, 8VC, Samsung Next, the Avalanche Foundation, LayerZero, Hashed, HashKey Capital, and Animoca Brands also participated. Pilot integrations with PayPal and Shopify are underway, extending Kite's payment infrastructure into real-world commerce. The company was founded by AI and data infrastructure veterans from Databricks, Uber, and UC Berkeley.

According to analysis from Messari, KITE has outperformed amid broader market volatility, breaking into CoinMarketCap's top 100 and climbing to a top-7 position on Upbit as agentic commerce gains traction. The token's performance reflects investor interest in the agentic payments narrative, though whether this translates to sustained transaction volume remains uncertain.

The Kite Agent Passport is available now. Interested parties can try it at agentpassport.ai or read how to get started at agentpassport.ai/quickstart/. Users can learn more about Kite at gokite.ai.

Whether users actually pay for this infrastructure remains the real question. The agent economy is still nascent, and the friction of setting up sessions, managing budgets, and monitoring agent spending may prove too high for casual users. The technology works in theory, but adoption will depend on whether agents can deliver enough value to justify the complexity of managing their financial autonomy. Time will tell if Kite's vertically integrated approach wins out against the fragmented protocol standards competing for the same market.

Artūras Malašauskas is an AI Systems Integrator with 20+ years of production-grade web engineering experience. He has designed, shipped, and scaled enterprise Python/PHP systems for logistics, SaaS, and public-sector clients. For the past year, he has focused exclusively on AI integrations: deploying open-source LLMs, building generative media pipelines (image, audio, video), and engineering multi-agent workflows for real production environments. His standard: reproducibility, security, cost-efficient inference—no vaporware. He documents and evaluates emerging AI tooling, separating verified capabilities from marketing noise. Technical editor at: muza-ai.eu, ai-verslas.lt, ai-naujinos.lt Connect on LinkedIn