x402stock × ZeroClick: market data built for the agentic web
Some companies need convincing that AI agents are real customers. x402stock never did. It launched as an HTTP API where the expected caller is an autonomous agent, the price is a few cents, and checkout is a status code. Today we're announcing our partnership with x402stock, the company putting live market and economic data in front of every agent.
Market data with no signup
x402stock is a market and economic data platform: 140 paid endpoints covering US equities, ETFs and options, forex and crypto, commodities, and macro data that ranges from Fed funds to CPI to Treasury yields. They even cover SEC EDGAR filings, congressional trades, and FDA catalysts.
The mechanics are exactly what an agent wants. No signup, no API key, no account. An agent calls an endpoint, gets back an HTTP 402 with a price, pays a few cents over open rails, retries, and receives clean JSON - ticker, data, source, and an as_of timestamp, so the agent knows precisely how fresh its answer is. Requests start at a cent.
Native speakers of the protocol
Today, most companies are bringing their existing products to the agentic web. x402stock was born on it - the protocol is in the company's name, and it was selling over x402 before most of the market knew what a 402 response was. When we say the payment rails have arrived, companies like x402stock are the proof: a real catalog, real prices, real agent buyers.
That made this partnership natural. Through ZeroClick, x402stock's catalog plugs into the rest of the stack: a machine-readable storefront, agent identity, transaction-level analytics on every sale, support for both x402 and MPP buyers, and registration across major agent indexes - Coinbase's agentic.market, x402scan, mppscan, and zero.xyz - so the data shows up wherever agents search for it.
The canonical agent purchase
If you want to see what agentic commerce looks like in practice, look no further than real-time market data. It's the canonical agent purchase: small, priced, machine-readable, and needed right now. A research agent comparing tickers, a portfolio monitor watching yields, a trading assistant fact-checking a filing - none of these can wait for a human to negotiate a data contract, and none of them needs to. The agent pays a cent, gets an answer, and moves on.
That's also why this category rewards being early. Agents remember what worked. The data provider that reliably serves agents today quietly becomes the default tomorrow.
Get started
If your agent needs market or economic data, point it at x402stock.xyz - it can pay per request and be done. And if you're ready to sell your own product to AI agents, that's exactly why we built ZeroClick - get a demo at zeroclick.ai, or read the docs at docs.zeroclick.ai.