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Tonic is a permissionless, fully on-chain, orderbook-based exchange platform built on NEAR. Our platform allows anyone to create markets for any asset on NEAR L1 or Aurora. Every component of Tonic is built with developers in mind, enabling the community to build a wide range of performant DeFi applications on NEAR.

Building on Tonic?
If you're interested in building a Tonic integration, email us at


Tonic is an open source project.

  • You can find the core repositories here.
  • Frontend libraries are available on npm.

See our API Reference to get started with building on the platform.

Contract accounts