1inch Swap API

Returns optimal swap routes and ready-to-sign transaction calldata across aggregated DEX liquidity. Supports Classic Swap, intent-based Fusion, and cross-chain Fusion+ flows.

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API entry from apis.yml

apis.yml Raw ↑
aid: 1inch:swap-api
name: 1inch Swap API
description: Returns optimal swap routes and ready-to-sign transaction calldata across aggregated DEX
  liquidity. Supports Classic Swap, intent-based Fusion, and cross-chain Fusion+ flows.
humanURL: https://business.1inch.com/portal/documentation
baseURL: https://api.1inch.dev/swap
tags:
- Swap
- Aggregation
- Fusion
properties:
- type: Documentation
  url: https://business.1inch.com/portal/documentation
- url: graphql/1inch-graphql.md
  type: GraphQL