Swap API MCP

Name: Swap API MCP
Author: swap-api

by swap-apiversion 0.1.0i★ –iRuns on your computer

Registry nameio.github.Swap-API/mcp

Install

Overview

Description from the maker (original English)

MCP server for SwapAPI - get executable token swap calldata for EVM chains

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "swap-api": {
      "command": "npx",
      "args": [
        "-y",
        "@swapapi/mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add swap-api -- npx -y @swapapi/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "swap-api": {
      "command": "npx",
      "args": [
        "-y",
        "@swapapi/mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "swap-api": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@swapapi/mcp"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account swap-api, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32435 servers in this category
Published to the registry more recently than 4% of the other 32435 servers in this category
Basic checks equal to or better than 100% of the other 32435 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Swap API MCP safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 8 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Apify MCP Server

Alternatives

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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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Runs on your computer★ 440MITUpdated 14 months ago

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Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday

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Apify MCP Server

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Runs in the cloudUpdated today

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

SwapAPI MCP Server

MCP (Model Context Protocol) server for SwapAPI. Enables AI agents to get executable token swap calldata for any EVM chain.

Installation

npm install -g @swapapi/mcp

Or use directly with npx:

npx @swapapi/mcp

Client Configuration

Claude Desktop

Add to your Claude Desktop config:

"mcpServers": { "swapapi": { "command": "npx", "args": ["@swapapi/mcp"] } } }

Or with a local install:

"mcpServers": { "swapapi": { "command": "npx", "args": ["tsx", "/path/to/swap-api/mcp/mcp-server.ts"] } } }

Cursor

Add to your Cursor settings (Settings → MCP):

"mcpServers": { "swapapi": { "command": "npx", "args": ["@swapapi/mcp"] } } }

Other Clients

Any MCP-compatible client can use the same configuration format. Check your client's documentation for where to add MCP server settings.

Available Tools

`swap_tokens`

Get executable transaction data to swap tokens on EVM chains.

Parameters:

Parameter	Type	Required	Description
`chainId`	`number`	Yes	Chain ID (1=Ethereum, 8453=Base, 42161=Arbitrum, etc.)
`tokenIn`	`string`	Yes	Input token address. Use `0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE` for native token (ETH, MATIC, etc.)
`tokenOut`	`string`	Yes	Output token address
`amountIn`	`string`	Yes	Amount in smallest unit (wei for 18-decimal tokens, micro-units for 6-decimal tokens)
`sender`	`string`	Yes	Wallet address that will sign and send the transaction
`maxSlippage`	`number`	No	Max slippage tolerance 0-1 (default: 0.005 = 0.5%)

Returns:

"to": "0x...", // Router contract address to call "data": "0x...", // ABI-encoded swap calldata "value": "1000000000000000000", // Native token value (if swapping from native) "gas": "150000", // Estimated gas limit "guaranteedOut": "..." // Minimum output amount after slippage }

Examples

Swap 0.001 ETH to USDC on Base

"chainId": 8453, "tokenIn": "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE", "tokenOut": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amountIn": "1000000000000000", "sender": "0xYourAddress" }

Swap USDC to ETH on Arbitrum with 1% slippage

"chainId": 42161, "tokenIn": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831", "tokenOut": "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE", "amountIn": "10000000", "sender": "0xYourAddress", "maxSlippage": 0.01 }

Pre-flight Checklist

Before submitting any swap transaction:

ERC-20 Approval: If tokenIn is not native token, ensure sender has approved the router for at least amountIn
Balance Check: Verify sender has sufficient balance for amountIn (plus value if native token)
Gas Estimation: Call eth_estimateGas on the transaction and add 20% buffer
Simulation: Run eth_call to verify the transaction won't revert
Timing: Submit within 30 seconds of fetching the quote (calldata has expiry)

See the main README.md for full API documentation.

Development

cd mcp

npm install npm start

Testing

Run the test suite:

npm test

Or use the MCP Inspector:

npx @modelcontextprotocol/inspector tsx mcp-server.ts

License

MIT

Swap API MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Apify MCP Server

README from the maker

SwapAPI MCP Server

Installation

Client Configuration

Claude Desktop

Cursor

Other Clients

Available Tools

swap_tokens

Examples

Swap 0.001 ETH to USDC on Base

Swap USDC to ETH on Arbitrum with 1% slippage

Pre-flight Checklist

Development

Testing

License

`swap_tokens`