Top crypto exchange APIs for Web3 businesses in 2026

Web3 businesses seeking to integrate exchange functionality without building internal infrastructure can utilize various cryptocurrency exchange APIs. These tools allow for embedded swaps, cross-chain asset movement, and fiat on/off-ramps.

Evaluations for 2026 highlight several key providers based on functionality, asset coverage, and commission models. ChangeNOW is identified as a top solution for Web3 integrations, offering access to liquidity from both centralized and decentralized exchanges, supporting over 1,500 crypto assets across more than 110 networks.

Other notable providers include 1inch API, which focuses on optimized routing across multiple chains; 0x API, which provides liquidity from hundreds of sources; SimpleSwap, which supports over 2,000 assets; and Fireblocks, which covers over 150 blockchains.