Limit Order SDK

The 1inch Limit Order SDK is the official TypeScript library for the Limit Order Protocol. It builds orders, produces the EIP-712 typed data for signing, and submits signed orders to the 1inch Orderbook — the same flow the MCP orderbook tool uses server-side.

• Repository: github.com/1inch/limit-order-sdk
• Language: TypeScript
• Best for: creating, signing, and submitting limit orders from a dApp or backend.

Install

         
         

           Bash
         
 
         
         

           
           

             
1
           
 
           
           
npm install @1inch/limit-order-sdk
         
       

Typical flow

1. Build an order with your maker/taker assets, amounts, and expiration.
2. Approve the maker asset for the Limit Order Protocol contract.
3. Sign the returned EIP-712 typed data with eth_signTypedData_v4.
4. Submit the signed order to the Orderbook API.

Related

• Orderbook API docs
• Retrieve a full working example through the 1inch MCP server