AgentPay is an autonomous AI agent that can discover paid APIs, negotiate prices, and pay for them using real cryptocurrency without human intervention.
Today, most AI agents break when they encounter paid tools or premium data sources. They either rely on prepaid credits or manual API keys. AgentPay solves this by giving the AI agent its own wallet and a payment protocol.
The system uses the HTTP 402 “Payment Required” flow. When the agent requests a paid tool, the backend returns a 402 response with pricing details. The agent automatically pays using the Yellow Network NitroLite SDK, which enables instant, off-chain micropayments through state channels. If the off-chain path fails, the system can fall back to standard on-chain EVM transactions.
The agent then retries the request with payment proof and receives the data, completing a fully autonomous pay-per-use loop.
AgentPay demonstrates the future of AI-to-API commerce, where agents can independently discover, pay for, and use digital services in real time.
AgentPay integrates the Yellow Network NitroLite SDK to enable autonomous AI agents to make instant micropayments for API access.
Reason to use Yellow: When the agent encounters a paid tool, the backend returns an HTTP 402 payment challenge. The frontend agent uses the Yellow NitroLite SDK to check USDC balance, approve token spending, and execute off-chain state channel payments. After payment, the agent retries the request with proof and receives the data, completing a fully autonomous pay-per-use loop.
