0x
0x provides flexible smart contracts to build decentralized exchanges and trading protocols.

What is 0x?
0x is a free-to-use exchange infrastructure provider, founded in 2017 by Will Warren, that offers powerful APIs for building financial apps on crypto rails. Its Swap API enables developers to embed crypto trading for millions of tokens with aggregated liquidity from 373+ exchanges, while the Gasless API removes gas friction from the trading funnel. 0x's open-source smart contracts enable direct, non-custodial wallet-to-wallet trading. The network is powered by nodes that host an off-chain order book, facilitating transactions using the ZRX token. To date, 0x has raised $109 million, with their most recent Series B of $70M from investors including Pantera Capital and Jump Crypto.
Web3 dapps and developer tools related to 0x
Discover blockchain applications that are frequently used with 0x.
Developer resources from Alchemy

Agentic payments and x402, explained
Agentic payments let AI agents pay for APIs, data, and services on their own, with no human at checkout. Learn how x402 works and powers agentic commerce.

What is x402? The payment protocol for AI agents and onchain APIs
x402 is an open protocol that embeds crypto payments into HTTP, letting AI agents pay for API calls in real time: no API keys, no subscriptions, no billing dashboards.

How Bitget serves 125 million users on its exchange with Alchemy
Bitget added Alchemy's RPC APIs to independently confirm deposits and withdrawals, remove single points of failure, and access archive and trace data across 9 networks.
0x alternatives
Explore web3 competitors and apps like 0x.
App store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.

