How do I install the Bankr X402 Sdk Token Swaps skill?

Run npx skillmds@latest add tomevault-io/bankr-x402-sdk-token-swaps in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Bankr X402 Sdk Token Swaps safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Bankr X402 Sdk Token Swaps?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Bankr X402 Sdk Token Swaps free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Bankr X402 Sdk Token Swaps?

tomevault-io (@tomevault-io) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Bankr X402 Sdk Token Swaps by tomevault-io

Name: Bankr X402 Sdk Token Swaps
Author: tomevault-io

Bankr X402 Sdk Token Swaps

This skill should be used when the user asks to "swap tokens", "exchange ETH for USDC", "buy DEGEN", "sell tokens", "swap on Base", "trade crypto", "convert ETH to WETH", "exchange tokens", "token swap code", "0x routing", or any token swap operation. Also use for questions about ERC20 approvals, allowanceTarget, swap transaction execution, or building swap transactions with the Bankr SDK. Use when this capability is needed.

tomevault-io Updated Sep 17, 2026

File contents

SDK Token Swaps

Build and execute token swaps with AI-powered 0x routing.

Prompt Patterns

Pattern	Example
Amount-based	"Swap 0.1 ETH to USDC"
Value-based	"Buy $100 worth of DEGEN"
Percentage	"Swap 50% of my ETH to USDC"
Sell all	"Sell all my DEGEN"
Chain-specific	"Swap ETH to USDC on Polygon"

# Amount Swaps
"Swap 0.1 ETH to USDC"
"Exchange 100 USDC for WETH"
"Swap 1000 DEGEN to ETH"

# Value Swaps
"Buy $100 worth of DEGEN"
"Purchase $50 of ETH"

# Percentage Swaps
"Swap 50% of my ETH to USDC"
"Sell 25% of my DEGEN"

# Chain-Specific
"Swap 0.1 ETH to USDC on Base"
"Exchange 100 USDC for WETH on Ethereum"

ERC20 Approval Handling

For ERC20 swaps (selling tokens other than ETH), approval is required before the swap.

const result = await client.promptAndWait({
  prompt: "Swap 100 USDC to WETH",
});

const swapTx = result.transactions?.find(tx => tx.type === "swap");

// Check if approval is needed
if (swapTx?.metadata.approvalRequired) {
  // Execute pre-built approval transaction first
  await wallet.sendTransaction(swapTx.metadata.approvalTx);
}

// Then execute the swap
await wallet.sendTransaction(swapTx.metadata.transaction);

Approval Fields

Field	Description
`approvalRequired`	Whether approval needed before swap
`approvalTx`	Pre-built approval transaction (ready to send)
`allowanceTarget`	0x AllowanceHolder address (for manual approval)

Usage

import { BankrClient } from "@bankr/sdk";

const client = new BankrClient({
  privateKey: process.env.BANKR_PRIVATE_KEY as `0x${string}`,
});

const result = await client.promptAndWait({
  prompt: "Swap 0.1 ETH to USDC on Base",
});

if (result.status === "completed" && result.transactions?.length) {
  const tx = result.transactions[0].metadata.transaction;
  await wallet.sendTransaction(tx);
}

Supported Chains

Chain	Native Token	Default
Base	ETH	Yes
Ethereum	ETH	No
Polygon	MATIC	No
Solana	SOL	No

Related Skills

sdk-capabilities: Full list of supported operations
sdk-transaction-builder: Other transaction types (transfers, NFTs)
sdk-wallet-operations: Client setup and configuration

Converted and distributed by TomeVault — claim your Tome and manage your conversions.

---name: bankr-x402-sdk-token-swapsdescription: This skill should be used when the user asks to "swap tokens", "exchange ETH for USDC", "buy DEGEN", "sell tokens", "swap on Base", "trade crypto", "convert ETH to WETH", "exchange tokens", "token swap code", "0x routing", or any token swap operation. Also use for questions about ERC20 approvals, allowanceTarget, swap transaction execution, or building swap transactions with the Bankr SDK. Use when this capability is needed.---# SDK Token SwapsBuild and execute token swaps with AI-powered 0x routing.## Prompt Patterns| Pattern | Example ||---------|---------|| Amount-based | "Swap 0.1 ETH to USDC" || Value-based | "Buy $100 worth of DEGEN" || Percentage | "Swap 50% of my ETH to USDC" || Sell all | "Sell all my DEGEN" || Chain-specific | "Swap ETH to USDC on Polygon" |```# Amount Swaps"Swap 0.1 ETH to USDC""Exchange 100 USDC for WETH""Swap 1000 DEGEN to ETH"# Value Swaps"Buy $100 worth of DEGEN""Purchase $50 of ETH"# Percentage Swaps"Swap 50% of my ETH to USDC""Sell 25% of my DEGEN"# Chain-Specific"Swap 0.1 ETH to USDC on Base""Exchange 100 USDC for WETH on Ethereum"```## ERC20 Approval HandlingFor ERC20 swaps (selling tokens other than ETH), approval is required before the swap.```typescriptconst result = await client.promptAndWait({ prompt: "Swap 100 USDC to WETH",});const swapTx = result.transactions?.find(tx => tx.type === "swap");// Check if approval is neededif (swapTx?.metadata.approvalRequired) { // Execute pre-built approval transaction first await wallet.sendTransaction(swapTx.metadata.approvalTx);}// Then execute the swapawait wallet.sendTransaction(swapTx.metadata.transaction);```## Approval Fields| Field | Description ||-------|-------------|| `approvalRequired` | Whether approval needed before swap || `approvalTx` | Pre-built approval transaction (ready to send) || `allowanceTarget` | 0x AllowanceHolder address (for manual approval) |## Usage```typescriptimport { BankrClient } from "@bankr/sdk";const client = new BankrClient({ privateKey: process.env.BANKR_PRIVATE_KEY as `0x${string}`,});const result = await client.promptAndWait({ prompt: "Swap 0.1 ETH to USDC on Base",});if (result.status === "completed" && result.transactions?.length) { const tx = result.transactions[0].metadata.transaction; await wallet.sendTransaction(tx);}```## Supported Chains| Chain | Native Token | Default ||-------|-------------|---------|| Base | ETH | Yes || Ethereum | ETH | No || Polygon | MATIC | No || Solana | SOL | No |## Related Skills- **sdk-capabilities**: Full list of supported operations- **sdk-transaction-builder**: Other transaction types (transfers, NFTs)- **sdk-wallet-operations**: Client setup and configuration---> Converted and distributed by [TomeVault](https://tomevault.io/claim/bankrbot) — claim your Tome and manage your conversions.

Frequently asked questions