Massive Adds Pay-Per-Request x402 Access for AI Agents With Coinbase

New access option enables AI agents to purchase individual US stock market data requests using USDC

ATLANTA, GA, UNITED STATES, September 1, 2026 /EINPresswire.com/ -- Massive, a leading provider of financial market data, today announced the general availability of x402 payments for its US stock market data, built in partnership with Coinbase.

Through x402, AI agents can find and pay for individual data requests in USDC as part of a standard HTTP interaction. Coinbase Developer Platform’s facilitator verifies and settles each payment before Massive returns the requested data.

“More and more of our traffic is coming from agents, whether through our LLM-friendly markdown docs or our new MCP server. Discovery has to work the same way; agent-first. Being listed in the x402 Bazaar means an agent can find our data and pay for it in the middle of a task, so the person waiting on the other end gets an answer without full onboarding friction and can make a decision in that moment with the exact data that is critical to their workflow.”
- Stevie Palmateer, VP of Product Engineering, Massive

“For AI agents to make informed trading decisions, they need real-time access to the best market data—without the friction of API keys, subscriptions, or human provisioning. Massive’s equities data API joining the x402 ecosystem means trading agents can now discover and pay for live stock data per request, settled instantly with stablecoins. This is a critical building block for the future of agentic finance and trading.”
- Kevin Leffew, Developer Partnerships, Coinbase; co-author of x402

Massive’s x402 routes are available through a dedicated subdomain and can be found on Agentic.Market and in the x402 Bazaar. The routes provide an additional way to access Massive data and do not affect existing subscriptions. Current customers can continue using their API keys, subscriptions and endpoints without any changes.

For details on available data, pricing and documentation, read the full announcement.

About Massive
Massive is a leading provider of financial market data, delivering real-time and historical coverage across US equities, options, futures, global indices, cryptocurrencies and forex for businesses building financial applications, trading systems and AI-powered products. Learn more at massive.com.

For more information about how x402 works, available market data, pricing and documentation, read the full announcement at: https://massive.com/blog/x402-payments-for-ai-agents

Karen O'Brien
Massive.com, Inc.
+1 415-720-6859
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