Is the mcp MCP server free to use?

Yes. mcp is listed on AllMCPs as a free, open Model Context Protocol server you can install into Claude Desktop, Cursor, or any MCP-compatible client.

Is the mcp MCP server free to use?

Yes. mcp is listed on AllMCPs as a free, open Model Context Protocol server you can install into Claude Desktop, Cursor, or any MCP-compatible client.

Mcp

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

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Install Config Generator

Choose your client

claude_desktop_config.json

{
  "mcpServers": {
    "mcp-207": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-207"
      ]
    }
  }
}

💡 Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

Documentation Overview

Swap API

Executable token swap calldata in one GET request. No API keys. No accounts. No SDK bloat.

Code

https://api.swapapi.dev

Quick Start

Swap 1 ETH for USDC on Ethereum:

Terminal

curl "https://api.swapapi.dev/v1/swap/1?\
tokenIn=0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE&\
tokenOut=0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48&\
amount=1000000000000000000&\
sender=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"

That's it. The response contains everything you need to sign and broadcast.

Example Response

config.json

{
  "success": true,
  "data": {
    "status": "Successful",
    "tokenFrom": {
      "address": "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE",
      "symbol": "ETH",
      "name": "Ether",
      "decimals": 18
    },
    "tokenTo": {
      "address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
      "symbol": "USDC",
      "name": "USD Coin",
      "decimals": 6
    },
    "swapPrice": 2435.12,
    "priceImpact": 0.0003,
    "amountIn": "1000000000000000000",
    "expectedAmountOut": "2435120000",
    "minAmountOut": "2422947280",
    "tx": {
      "from": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
      "to": "0x011E52E4E40CF9498c79e329EBc29ed08c8B5abB",
      "data": "0x2646478b...",
      "value": "1000000000000000000",
      "gasPrice": 30000000000,
      "gas": "250000"
    }
  },
  "timestamp": "2026-03-12T00:00:00.000Z"
}

Field	Description
`success`	Boolean indicating request success
`data.status`	`"Successful"`, `"Partial"`, or `"NoRoute"`
`data.tokenFrom/tokenTo`	Token metadata (address, symbol, decimals)
`data.swapPrice`	Exchange rate
`data.priceImpact`	Slippage impact (0.001 = 0.1%)
`data.expectedAmountOut`	Estimated output in token's smallest unit
`data.minAmountOut`	Guaranteed minimum (respects your `maxSlippage`)
`data.tx`	Transaction object ready to sign and send

API Reference

Endpoint: GET /v1/swap/{chainId}

Parameters:

Param	Required	Description
`chainId`	path	Chain ID (1=Ethereum, 8453=Base, 42161=Arbitrum, etc.)
`tokenIn`	query	Input token address. Use `0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE` for native ETH
`tokenOut`	query	Output token address
`amount`	query	Input amount in smallest unit (e.g., wei for ETH)
`sender`	query	Your wallet address (used to build the tx)
`maxSlippage`	query	Optional. 0-1 (default: 0.005 = 0.5%)

Response codes:

200 — Quote ready
400 — Invalid params or unsupported chain
429 — Rate limit exceeded (60/min per IP)
502 — Upstream service error

More Curl Examples

Base (ETH → USDC)

Terminal

curl "https://api.swapapi.dev/v1/swap/8453?\
tokenIn=0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE&\
tokenOut=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&\
amount=500000000000000000&\
sender=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"

Arbitrum (USDC → ETH with 1% slippage)

Terminal

curl "https://api.swapapi.dev/v1/swap/42161?\
tokenIn=0xaf88d065e77c8cC2239327C5EDb3A432268e5831&\
tokenOut=0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE&\
amount=1000000000&\
sender=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045&\
maxSlippage=0.01"

Ethereum Mainnet (DAI → USDC)

Terminal

curl "https://api.swapapi.dev/v1/swap/1?\
tokenIn=0x6B175474E89094C44Da98b954EedeAC495271d0F&\
tokenOut=0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48&\
amount=1000000000000000000000&\
sender=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"

Polygon (MATIC → USDC)

Terminal

curl "https://api.swapapi.dev/v1/swap/137?\
tokenIn=0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE&\
tokenOut=0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174&\
amount=10000000000000000000&\
sender=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"

Executing Swaps

The API gives you an unsigned transaction. Sign it and broadcast:

With Foundry `cast`

bash

# 1. Set swap parameters
CHAIN_ID=8453
TOKEN_IN=0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
TOKEN_OUT=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
AMOUNT=1000000000000000000
SENDER=0x...        # Your address
PRIVATE_KEY=0x...   # Your private key
RPC_URL=https://mainnet.base.org

# 2. Get swap quote
RESPONSE=$(curl -s "https://api.swapapi.dev/v1/swap/$CHAIN_ID?\
tokenIn=$TOKEN_IN&\
tokenOut=$TOKEN_OUT&\
amount=$AMOUNT&\
sender=$SENDER")

# 3. Parse the tx fields
TX_TO=$(echo "$RESPONSE" | jq -r '.data.tx.to')
TX_DATA=$(echo "$RESPONSE" | jq -r '.data.tx.data')
TX_VALUE=$(echo "$RESPONSE" | jq -r '.data.tx.value')
TX_GAS=$(echo "$RESPONSE" | jq -r '.data.tx.gas')

# 4. Sign and send
cast send \
  --rpc-url "$RPC_URL" \
  --private-key "$PRIVATE_KEY" \
  "$TX_TO" \
  --value "$TX_VALUE" \
  --gas-limit "$TX_GAS" \
  --data "$TX_DATA"

With viem

server.ts

import { createWalletClient, http } from 'viem'
import { privateKeyToAccount } from 'viem/accounts'
import { base } from 'viem/chains'

const account = privateKeyToAccount('0x...')

const client = createWalletClient({
  account,
  chain: base,
  transport: http()
})

const response = await fetch(
  'https://api.swapapi.dev/v1/swap/8453?' +
  'tokenIn=0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE&' +
  'tokenOut=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&' +
  'amount=1000000000000000000&' +
  'sender=' + account.address
)

const { data } = await response.json()

const hash = await client.sendTransaction({
  to: data.tx.to,
  data: data.tx.data,
  value: BigInt(data.tx.value),
  gas: BigInt(data.tx.gas)
})

await client.waitForTransactionReceipt({ hash })

MCP Server

For AI agents, Claude Desktop, Cursor, Cline, and other MCP clients:

Terminal

npx @swapapi/mcp

Or add to Claude Desktop config:

config.json

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

See mcp/README.md for full MCP documentation.

OpenAPI Spec

See openapi.json for the full OpenAPI specification.

Limits

Rate limit: 60 requests/minute per IP
No authentication required
Free to use

License

MIT

Related MCP Servers

View all in Finance & Fintech View all alternatives

Frequently Asked Questions about Mcp

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "mcp": { "command": "npx", "args": ["-y", "mcp"] } }

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Technical Specs & Signals

CategoryFinance & Fintech

0/4 checks healthy over the last 6h

27Quality signal: Emerging · 27/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership8/20

Documentation & tools11/30

Adoption & activity1/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

★ Featured

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More in 💰 Finance & Fintech →Best MCP servers for Finance & Fintech →Alternatives to Mcp →Install in Claude Desktop Install in Cursor Install in VS Code

Mcp

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

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Install Config Generator

Choose your client

claude_desktop_config.json

{
  "mcpServers": {
    "mcp-207": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-207"
      ]
    }
  }
}

💡 Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

Documentation Overview

Swap API

Executable token swap calldata in one GET request. No API keys. No accounts. No SDK bloat.

Code

https://api.swapapi.dev

Quick Start

Swap 1 ETH for USDC on Ethereum:

Terminal

curl "https://api.swapapi.dev/v1/swap/1?\
tokenIn=0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE&\
tokenOut=0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48&\
amount=1000000000000000000&\
sender=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"

That's it. The response contains everything you need to sign and broadcast.

Example Response

config.json

{
  "success": true,
  "data": {
    "status": "Successful",
    "tokenFrom": {
      "address": "0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE",
      "symbol": "ETH",
      "name": "Ether",
      "decimals": 18
    },
    "tokenTo": {
      "address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
      "symbol": "USDC",
      "name": "USD Coin",
      "decimals": 6
    },
    "swapPrice": 2435.12,
    "priceImpact": 0.0003,
    "amountIn": "1000000000000000000",
    "expectedAmountOut": "2435120000",
    "minAmountOut": "2422947280",
    "tx": {
      "from": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
      "to": "0x011E52E4E40CF9498c79e329EBc29ed08c8B5abB",
      "data": "0x2646478b...",
      "value": "1000000000000000000",
      "gasPrice": 30000000000,
      "gas": "250000"
    }
  },
  "timestamp": "2026-03-12T00:00:00.000Z"
}

Field	Description
`success`	Boolean indicating request success
`data.status`	`"Successful"`, `"Partial"`, or `"NoRoute"`
`data.tokenFrom/tokenTo`	Token metadata (address, symbol, decimals)
`data.swapPrice`	Exchange rate
`data.priceImpact`	Slippage impact (0.001 = 0.1%)
`data.expectedAmountOut`	Estimated output in token's smallest unit
`data.minAmountOut`	Guaranteed minimum (respects your `maxSlippage`)
`data.tx`	Transaction object ready to sign and send

API Reference

Endpoint: GET /v1/swap/{chainId}

Parameters:

Param	Required	Description
`chainId`	path	Chain ID (1=Ethereum, 8453=Base, 42161=Arbitrum, etc.)
`tokenIn`	query	Input token address. Use `0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE` for native ETH
`tokenOut`	query	Output token address
`amount`	query	Input amount in smallest unit (e.g., wei for ETH)
`sender`	query	Your wallet address (used to build the tx)
`maxSlippage`	query	Optional. 0-1 (default: 0.005 = 0.5%)

Response codes:

200 — Quote ready
400 — Invalid params or unsupported chain
429 — Rate limit exceeded (60/min per IP)
502 — Upstream service error

More Curl Examples

Base (ETH → USDC)

Terminal

curl "https://api.swapapi.dev/v1/swap/8453?\
tokenIn=0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE&\
tokenOut=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&\
amount=500000000000000000&\
sender=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"

Arbitrum (USDC → ETH with 1% slippage)

Terminal

curl "https://api.swapapi.dev/v1/swap/42161?\
tokenIn=0xaf88d065e77c8cC2239327C5EDb3A432268e5831&\
tokenOut=0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE&\
amount=1000000000&\
sender=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045&\
maxSlippage=0.01"

Ethereum Mainnet (DAI → USDC)

Terminal

curl "https://api.swapapi.dev/v1/swap/1?\
tokenIn=0x6B175474E89094C44Da98b954EedeAC495271d0F&\
tokenOut=0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48&\
amount=1000000000000000000000&\
sender=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"

Polygon (MATIC → USDC)

Terminal

curl "https://api.swapapi.dev/v1/swap/137?\
tokenIn=0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE&\
tokenOut=0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174&\
amount=10000000000000000000&\
sender=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"

Executing Swaps

The API gives you an unsigned transaction. Sign it and broadcast:

With Foundry `cast`

bash

# 1. Set swap parameters
CHAIN_ID=8453
TOKEN_IN=0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE
TOKEN_OUT=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
AMOUNT=1000000000000000000
SENDER=0x...        # Your address
PRIVATE_KEY=0x...   # Your private key
RPC_URL=https://mainnet.base.org

# 2. Get swap quote
RESPONSE=$(curl -s "https://api.swapapi.dev/v1/swap/$CHAIN_ID?\
tokenIn=$TOKEN_IN&\
tokenOut=$TOKEN_OUT&\
amount=$AMOUNT&\
sender=$SENDER")

# 3. Parse the tx fields
TX_TO=$(echo "$RESPONSE" | jq -r '.data.tx.to')
TX_DATA=$(echo "$RESPONSE" | jq -r '.data.tx.data')
TX_VALUE=$(echo "$RESPONSE" | jq -r '.data.tx.value')
TX_GAS=$(echo "$RESPONSE" | jq -r '.data.tx.gas')

# 4. Sign and send
cast send \
  --rpc-url "$RPC_URL" \
  --private-key "$PRIVATE_KEY" \
  "$TX_TO" \
  --value "$TX_VALUE" \
  --gas-limit "$TX_GAS" \
  --data "$TX_DATA"

With viem

server.ts

import { createWalletClient, http } from 'viem'
import { privateKeyToAccount } from 'viem/accounts'
import { base } from 'viem/chains'

const account = privateKeyToAccount('0x...')

const client = createWalletClient({
  account,
  chain: base,
  transport: http()
})

const response = await fetch(
  'https://api.swapapi.dev/v1/swap/8453?' +
  'tokenIn=0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE&' +
  'tokenOut=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&' +
  'amount=1000000000000000000&' +
  'sender=' + account.address
)

const { data } = await response.json()

const hash = await client.sendTransaction({
  to: data.tx.to,
  data: data.tx.data,
  value: BigInt(data.tx.value),
  gas: BigInt(data.tx.gas)
})

await client.waitForTransactionReceipt({ hash })

MCP Server

For AI agents, Claude Desktop, Cursor, Cline, and other MCP clients:

Terminal

npx @swapapi/mcp

Or add to Claude Desktop config:

config.json

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

See mcp/README.md for full MCP documentation.

OpenAPI Spec

See openapi.json for the full OpenAPI specification.

Limits

Rate limit: 60 requests/minute per IP
No authentication required
Free to use

License

MIT

Related MCP Servers

View all in Finance & Fintech View all alternatives

Frequently Asked Questions about Mcp

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "mcp": { "command": "npx", "args": ["-y", "mcp"] } }

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Technical Specs & Signals

CategoryFinance & Fintech

0/4 checks healthy over the last 6h

27Quality signal: Emerging · 27/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership8/20

Documentation & tools11/30

Adoption & activity1/15

Community engagement0/10

★ Featured

AllMCPs Server

Explore Server →

Own this project?

This directory is pre-filled from public sources. Claim via GitHub README, site badge, or DNS TXT to get the verified badge and attach your website.

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More in 💰 Finance & Fintech →Best MCP servers for Finance & Fintech →Alternatives to Mcp →Install in Claude Desktop Install in Cursor Install in VS Code

Mcp

Quick Install

Install Config Generator

Documentation Overview

Swap API

Quick Start

Example Response

API Reference

More Curl Examples

Base (ETH → USDC)

Arbitrum (USDC → ETH with 1% slippage)

Ethereum Mainnet (DAI → USDC)

Polygon (MATIC → USDC)

Executing Swaps

With Foundry cast

With viem

MCP Server

OpenAPI Spec

Limits

License

Related MCP Servers

Frequently Asked Questions about Mcp

AllMCPs Directory Badge

Technical Specs & Signals

AllMCPs Server

Own this project?

Share & Embed

Explore more

Mcp

Quick Install

Install Config Generator

Documentation Overview

Swap API

Quick Start

Example Response

API Reference

More Curl Examples

Base (ETH → USDC)

Arbitrum (USDC → ETH with 1% slippage)

Ethereum Mainnet (DAI → USDC)

Polygon (MATIC → USDC)

Executing Swaps

With Foundry cast

With viem

MCP Server

OpenAPI Spec

Limits

License

Related MCP Servers

Frequently Asked Questions about Mcp

AllMCPs Directory Badge

Technical Specs & Signals

AllMCPs Server

Own this project?

Share & Embed

Explore more

With Foundry `cast`

With Foundry `cast`