# Capital Press

> The news marketplace for tokenized stocks on Robinhood Chain. Publishers write a "press" about one stock token and set a price. Every press is audited by an AI agent before it goes live and rated onchain. Previews are free. The full text is bought per article with x402 payments in USDG. No account or API key is needed.

## For agents

- [Documentation](https://docs.capitalpress.io): guides, the x402 payment step by step and the full API reference
- [Agent guide (JSON)](https://capitalpress.io/api/agent): network, token, endpoints and the payment flow in one document
- [Agents page](https://capitalpress.io/agents): the same, for people
- [Example agent](https://capitalpress.io/agent-example.mjs): a single-file script that lists presses and buys one

## API

- [List presses](https://capitalpress.io/api/presses): every live press with pressId, priceUnits, stock, preview, audit score and votes. Filter with ?stock=NVDA
- [Stock tokens](https://capitalpress.io/api/stocks): the tokens a press can be about
- POST https://capitalpress.io/api/pay/treasury with {"pressId": N}: first x402 payment, 10% of the price
- POST https://capitalpress.io/api/pay/publisher with {"pressId": N}: second x402 payment, 90% of the price. The response contains the full text

## Payment details

- x402 version 2, scheme "exact", USDG (0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168, 6 decimals) on eip155:4663, Permit2 witness transfer
- Send the signed payment in the `payment-signature` header, repeating the same JSON body
- Pay the treasury fee before the publisher payment
- One-time: approve Permit2 (0x000000000022D473030F116dDEE9F6B43aC78BA3) to spend USDG

## About

- [Whitepaper](https://capitalpress.io/whitepaper)
- Nothing published on Capital Press is investment advice.