TLDR
- Agent.market, a new marketplace for AI agents, has been introduced by Coinbase’s x402 AI payments protocol
- AI agents can now access and pay for services from Bloomberg, LinkedIn, CoinGecko, and AWS without traditional API authentication
- Approximately 69,000 active AI agents have processed more than 165 million transactions worth $50 million in total volume
- Major backers of x402 include Google, Microsoft, Amazon, Visa, Mastercard, Stripe, and over 20 leading technology and cryptocurrency companies
- The system leverages blockchain technology and stablecoins to facilitate instantaneous micropayments between AI agents and service providers
Coinbase has unveiled Agent.market through its x402 payments protocol, creating a centralized marketplace where AI agents can locate and purchase digital services without the need for API keys or traditional subscription models.
Erik Reppel, who leads engineering at Coinbase Developer Platform and developed the x402 protocol, characterizes the platform as an “app store for agents.” The marketplace organizes offerings across seven distinct categories: Inference, Data, Media, Search, Social, Infrastructure, and Trading.
Initial service providers include OpenAI and Venice in the inference category, Bloomberg and CoinGecko for data services, LinkedIn and X for social platforms, plus AWS Lambda and Alchemy in the infrastructure space. The marketplace operates on a permissionless basis, allowing providers to join without central authority approval.
Coinbase introduced the x402 protocol in May 2025. The protocol derives its designation from HTTP status code “402 Payment Required,” a seldom-used web standard. It enables AI agents to execute immediate payments through stablecoins and conventional payment infrastructure.
The x402 Foundation oversees the protocol as an open standard under the Linux Foundation umbrella, with financial backing from over 20 corporations. Supporters include Google, Microsoft, AWS, Cloudflare, Stripe, Visa, Mastercard, American Express, Shopify, Circle, Base, Polygon Labs, and the Solana Foundation.
A Growing Market for AI Agents
The x402 network currently supports approximately 69,000 active AI agents. These autonomous systems have collectively executed more than 165 million transactions representing $50 million in combined transaction volume.
Coinbase product lead Nick Prince noted that hundreds of thousands of AI agents have been conducting transactions but have depended on “fragmented sources and word-of-mouth” to discover compatible service options. Agent.market was designed to address this challenge.
The platform features both a web-based interface for human operators and a programming layer enabling AI agents to autonomously search for and integrate services without human intervention.
How Pricing Works for AI Agents
Most services available through Agent.market implement pay-per-use pricing models, with certain providers imposing an “agentic premium” for automated bot access. According to Reppel, businesses can also provide subscription options to decrease per-transaction costs for agents with high usage volumes.
Reppel explained that the protocol also reduces entry barriers for emerging businesses seeking to attract customers, as agents can utilize services with minimal configuration and no API key requirements.
Coinbase CEO Brian Armstrong has predicted “there will be more AI agents transacting online than humans very soon.” Circle CEO Jeremy Allaire echoed this sentiment in January, forecasting that billions of AI agents will conduct transactions on blockchain networks within three to five years.
Upon launch, Agent.market permits any service provider to join the marketplace without undergoing a formal approval procedure.
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