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swap-integration

Integrate Uniswap swaps into frontends, backends, and smart contracts.

Updated May 2, 2026
Search Tags:#uniswap#defi#trading api#permit2#universal router#cross-chain swaps#swap integration
One-click install
npx skills add https://github.com/nickthelegend/obolus-expo-app --skill swap-integration-nickthelegend
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: swap-integration
Source: https://github.com/nickthelegend/obolus-expo-app/tree/main/.agents/skills/swap-integration
Command: npx skills add https://github.com/nickthelegend/obolus-expo-app --skill swap-integration-nickthelegend

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Integrating Uniswap swap functionality requires handling complex routing logic, token approval flows, cross-chain compatibility, and transaction safety checks, which is time-consuming and error-prone for developers building DeFi applications. This Skill eliminates that overhead by providing production-ready, tested patterns for all common Uniswap integration scenarios.

Core Features & Use Cases

  • Multiple Integration Methods: Supports Trading API for frontends/backends, Universal Router SDK for direct control, and smart contract integration for on-chain use cases.
  • Comprehensive Routing Support: Handles all Uniswap routing types including CLASSIC AMM swaps, UniswapX Dutch auctions, MEV-protected PRIORITY orders, and cross-chain BRIDGE swaps.
  • Built-in Safety & Edge Case Handling: Includes input validation, pre-broadcast transaction checks, Permit2 signature flows, CORS proxy setup for browser environments, and patterns for ERC-4337 smart accounts and L2 WETH unwrapping.
  • Use Case Example: A DeFi protocol developer can use this Skill to integrate UniswapX PRIORITY swaps with built-in MEV protection for users on Base and Unichain.

Quick Start

Use the swap-integration skill to add a Uniswap swap feature to your React frontend that supports token swaps across Ethereum, Arbitrum, and Base with automatic routing and MEV protection.

Frequently Asked Questions about swap-integration

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I integrate Uniswap swap functionality into a React frontend?▼

You can integrate Uniswap swap functionality into a React frontend using the Trading API or Universal Router SDK. This skill provides standardized patterns for routing, token approval handling, and transaction execution to build swap widgets.

What is the best way to handle Permit2 signature flows for Uniswap swaps?▼

The best way to handle Permit2 signature flows is using the built-in patterns provided by this skill. It manages the signature generation and validation process to securely approve token transfers without manual smart contract interaction.

Can I execute cross-chain token swaps across Uniswap-supported chains?▼

Yes, you can execute cross-chain token swaps across all Uniswap-supported chains. This skill supports cross-chain BRIDGE swaps, allowing you to route transactions across different networks like Ethereum, Arbitrum, and Base.

Does this skill support ERC-4337 smart account swap flows?▼

Yes, this skill fully supports ERC-4337 smart account swap flows. It includes specific integration patterns designed to route and execute transactions through smart contract accounts while maintaining pre-broadcast safety checks.

Why do I need a CORS proxy configuration for browser Uniswap swaps?▼

You need a CORS proxy configuration to bypass browser security restrictions when interacting with Uniswap APIs directly. This skill includes setup patterns to ensure your frontend can communicate with the Trading API without encountering CORS errors.

How do I add MEV-protected PRIORITY orders using the Uniswap Universal Router?▼

To add MEV-protected PRIORITY orders, use the UniswapX routing patterns included in this skill. It provides the necessary logic to submit Dutch auction PRIORITY orders via the Universal Router SDK to protect users from MEV.

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