---
title: "0x (@0xproject)"
description: "Exchange Infrastructure for the Internet"
account: "0xproject"
---

# 0x

Exchange Infrastructure for the Internet

## APIs

3 public APIs with a stored document.
Each links to its markdown overview; the same address with
`/llms.txt` in place of `.md` lists its operations.
Changes across these APIs: https://skmtc.dev/0xproject/feed.md

- [0x Cross-Chain API](https://skmtc.dev/0xproject/apis/0x-cross-chain-api.md): Cross-chain swaps: fetch quotes, stream live pricing, list sources and track transfer status
- [0x API](https://skmtc.dev/0xproject/apis/0x-api.md): Token swaps: fetch prices and quotes, submit gasless trades, and pull trade analytics
- [Solana API](https://skmtc.dev/0xproject/apis/solana-api.md): Swap: generate Solana swap instructions across aggregated DEX liquidity sources