Kairos — Agentic Payments Runtime on Arc

Kairos is an Arc-native agentic payments runtime that proves a new economic primitive: an autonomous agent can pay for the governance, data, compute, and settlement required to act. The trading loop is the workload. The product is the payment and proof runtime around that workload. Every meaningful Kairos path can produce a USDC-denominated receipt: governance-stage checks, x402 paid data requests, LLM reasoning, SAGE reflection, and bounded micro-commerce proof receipts. This creates an economic fingerprint of the agent’s behavior rather than a self-reported log. Kairos is built for the Agentic Economy on Arc challenge. It demonstrates real per-action pricing at or below one cent, high-frequency transaction evidence well above the 50+ on-chain requirement, and a margin story that only works when gas overhead does not destroy sub-cent economics. With Arc, USDC, Circle Nanopayments, Circle Wallets, Circle Gateway, x402, Gemini Function Calling, multimodal commerce proof, and MCP, Kairos shows how APIs, agents, compute, and commerce can coordinate through programmable value.