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Bankr x402 SDK - Token Swaps

Automate token swaps across supported chains using the Bankr x402 SDK.

80|30|Updated Jan 15, 2026
Search Tags:#sdk#ethereum#base#token-swaps#0x-routing#erc20-approval#wallet-operations
One-click install
npx skills add https://github.com/BankrBot/claude-plugins --skill bankr-x402-sdk-token-swaps
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: Bankr x402 SDK - Token Swaps
Source: https://github.com/BankrBot/claude-plugins/tree/main/x402-sdk-dev/skills/sdk-token-swaps
Command: npx skills add https://github.com/BankrBot/claude-plugins --skill bankr-x402-sdk-token-swaps

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Automates token swaps with reliable routing and on-chain execution using Bankr's x402 SDK, reducing manual steps and risk.

Core Features & Use Cases

  • Automated swap construction and execution across Base, Ethereum, Polygon and other supported chains.
  • ERC20 approval handling and pre/post-swap transaction management.
  • Dynamic routing via 0x adapters for optimized prices and gas.

Quick Start

Prompt the AI to swap 0.1 ETH for USDC on Base using the Bankr SDK.

Frequently Asked Questions about Bankr x402 SDK - Token Swaps

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

FAQPage Schema
How do I automate ERC20 token swaps across multiple chains?▼

You can automate token swaps across chains like Base, Ethereum, and Polygon using the Bankr x402 SDK. It dynamically routes transactions via 0x adapters to optimize prices, manage ERC20 approvals, and handle pre- and post-swap operations automatically.

How does 0x routing work for Ethereum and Base token exchanges?▼

0x routing dynamically scans supported chains like Ethereum and Base to find optimized swap prices and gas costs. The SDK constructs the transaction route, handles necessary ERC20 approvals, and executes the exchange on-demand.

Can I execute multi-token swaps without manually handling ERC20 approvals?▼

Yes, the Bankr x402 SDK satisfies ERC20 approval requirements and constructs swap transactions automatically. You can prompt the AI to execute complex routes, like DEGEN-to-ETH, without manual wallet operations.

What's the best way to swap ETH for USDC on the Base network?▼

The best way to swap ETH for USDC on Base is to prompt the AI using the Bankr SDK. It leverages 0x routing for optimal pricing and handles the entire swap construction and execution process securely.

Does the Bankr x402 SDK support wallet operations on Polygon?▼

Yes, the Bankr x402 SDK supports wallet operations and token swaps on Polygon, Ethereum, and Base. It manages on-chain execution and pre- or post-swap handling directly through the Bankr client.

Why do my automated token swaps fail during transaction construction?▼

Automated token swaps can fail if ERC20 approval requirements are unmet or routing fails. The Bankr x402 SDK prevents this by managing approvals, validating 0x routing paths, and handling pre-swap logic before execution.

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