AI agents are now capable of autonomously driving onchain transactions thanks to a new partnership between Coinbase and Chainlink, which has launched the x402 protocol as the first AI payments partner for the Chainlink Runtime Environment (CRE). This collaboration allows AI agents to discover and pay for CRE workflows using x402’s programmable payment layer, marking a significant advancement from manual transactions to economically expressive AI that can engage directly with the onchain economy. The momentum behind x402 is bolstered by support from major players such as Google, Microsoft, and Visa, aimed at standardizing payments for AI agents, while Coinbase had previously integrated Chainlink DataLink in March 2026 to facilitate the use of premium exchange trading data onchain.
x402: x402 is an open protocol developed by Coinbase that leverages the HTTP 402 status code for instant, native stablecoin payments embedded in HTTP requests. Designed for APIs, apps, and AI agents, it facilitates machine-to-machine transactions without traditional intermediaries. Here, x402 powers autonomous payments for Chainlink CRE workflows, marking it as the inaugural AI payments partner and unlocking agentic onchain economies.
Coinbase: Coinbase operates as a leading cryptocurrency exchange and developer platform, providing tools for trading, custody, and building onchain applications. It recently integrated Chainlink to deliver premium exchange data onchain via DataLink for DeFi use cases. In this development, Coinbase’s x402 protocol serves as the first AI payments partner for Chainlink’s CRE, enabling AI agents to pay for workflows autonomously.
Chainlink: Chainlink is the premier oracle network delivering secure, reliable data and cross-chain interoperability to smart contracts across DeFi and tokenized assets. It launched the Chainlink Runtime Environment (CRE) as an orchestration layer for institutional-grade workflows. The news announces CRE’s integration with Coinbase’s x402, allowing AI agents to discover, trigger, and compensate for these workflows directly.
Chainlink Runtime Environment (CRE): Chainlink Runtime Environment (CRE) functions as an orchestration layer within the Chainlink ecosystem for creating, testing, and deploying verifiable workflows tied to smart contracts. It supports advanced applications like tokenized asset servicing and AI-triggered executions. This partnership introduces x402 payment support, enabling AI agents to programmatically access and settle CRE workflows onchain.
x402 Momentum: x402 has garnered backing from Google, Microsoft, Visa, and the Linux Foundation to standardize payments for AI agents across web services.
Agentic Builds: Developers are deploying x402 for AI agents to handle crypto payments to APIs autonomously without human intervention.
Prior Collaboration: Coinbase integrated Chainlink DataLink in March 2026 to bring its premium exchange trading data onchain for DeFi and other applications.