Is io.github.CryptoAPIs-io/mcp-prepare-transactions safe to use?

io.github.CryptoAPIs-io/mcp-prepare-transactions has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install io.github.CryptoAPIs-io/mcp-prepare-transactions?

io.github.CryptoAPIs-io/mcp-prepare-transactions supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.

What AI clients work with io.github.CryptoAPIs-io/mcp-prepare-transactions?

io.github.CryptoAPIs-io/mcp-prepare-transactions is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.

Is io.github.CryptoAPIs-io/mcp-prepare-transactions actively maintained?

io.github.CryptoAPIs-io/mcp-prepare-transactions is recently maintained — last commit was 68 days ago.

io.github.CryptoAPIs-io/mcp-prepare-transactions

Official

@cryptoapis-io/mcp-prepare-transactions

MCP server for building unsigned transactions on multiple blockchains via Crypto APIs

45/wk 0 tools GitHub npm

No known CVEs

No license

Maintained

Last commit 68d ago

Works with most clients

Transport: stdio, http

0 tools

Grade F

Edit this pageView history

Finance

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "cryptoapis-prepare-transactions": {
      "env": {
        "CRYPTOAPIS_API_KEY": "your_api_key_here"
      },
      "args": [
        "-y",
        "@cryptoapis-io/mcp-prepare-transactions"
      ],
      "command": "npx"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-cryptoapis-io-mcp-prepare-transactions)](https://mcppedia.org/s/io-github-cryptoapis-io-mcp-prepare-transactions)

Read me

What io.github.CryptoAPIs-io/mcp-prepare-transactions does

MCP server for Crypto APIs Prepare Transactions product. Build unsigned EVM transactions for native coin transfers, fungible token transfers, and NFT transfers.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y '@cryptoapis-io/mcp-prepare-transactions' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

51/100across 5 weighted dimensions

How we score →

0255075100

−49

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked @cryptoapis-io/mcp-prepare-transactions against OSV.dev.

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.CryptoAPIs-io/mcp-prepare-transactions safe to use?: io.github.CryptoAPIs-io/mcp-prepare-transactions has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.CryptoAPIs-io/mcp-prepare-transactions?: io.github.CryptoAPIs-io/mcp-prepare-transactions supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What AI clients work with io.github.CryptoAPIs-io/mcp-prepare-transactions?: io.github.CryptoAPIs-io/mcp-prepare-transactions is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.
Is io.github.CryptoAPIs-io/mcp-prepare-transactions actively maintained?: io.github.CryptoAPIs-io/mcp-prepare-transactions is recently maintained — last commit was 68 days ago.

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MCP Security Weekly

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Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Edit this pageView history

Finance

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopstdio, http · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "cryptoapis-prepare-transactions": {
      "env": {
        "CRYPTOAPIS_API_KEY": "your_api_key_here"
      },
      "args": [
        "-y",
        "@cryptoapis-io/mcp-prepare-transactions"
      ],
      "command": "npx"
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/io-github-cryptoapis-io-mcp-prepare-transactions)](https://mcppedia.org/s/io-github-cryptoapis-io-mcp-prepare-transactions)

Read me

What io.github.CryptoAPIs-io/mcp-prepare-transactions does

MCP server for Crypto APIs Prepare Transactions product. Build unsigned EVM transactions for native coin transfers, fungible token transfers, and NFT transfers.

Test This Server

Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.

npx -y '@cryptoapis-io/mcp-prepare-transactions' 2>&1 | head -1 && echo "✓ Server started successfully"

After testing, let us know if it worked:

README

@cryptoapis-io/mcp-prepare-transactions

MCP server for Crypto APIs Prepare Transactions product. Build unsigned EVM transactions for native coin transfers, fungible token transfers, and NFT transfers.

API Version: Compatible with Crypto APIs version 2024-12-12

Features

Prepare native coin transfer transactions (from address)
Prepare fungible token (ERC-20) transfer transactions
Prepare NFT (ERC-721) transfer transactions
Returns unsigned transaction hex ready for signing with @cryptoapis-io/mcp-signer

Prerequisites

Node.js 18+
Crypto APIs account and API key (sign up | get API key)

Installation

npm install @cryptoapis-io/mcp-prepare-transactions

Or install all Crypto APIs MCP servers: npm install @cryptoapis-io/mcp

Usage

# Run with API key
npx @cryptoapis-io/mcp-prepare-transactions --api-key YOUR_API_KEY

# Or use environment variable
export CRYPTOAPIS_API_KEY=YOUR_API_KEY
npx @cryptoapis-io/mcp-prepare-transactions

# HTTP transport
npx @cryptoapis-io/mcp-prepare-transactions --transport http --port 3000 --api-key YOUR_API_KEY

Claude Desktop

Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json on macOS, %APPDATA%\Claude\claude_desktop_config.json on Windows):

{
  "mcpServers": {
    "cryptoapis-prepare-transactions": {
      "command": "npx",
      "args": ["-y", "@cryptoapis-io/mcp-prepare-transactions"],
      "env": {
        "CRYPTOAPIS_API_KEY": "your_api_key_here"
      }
    }
  }
}

Cursor

Add to .cursor/mcp.json (project) or ~/.cursor/mcp.json (global):

{
  "mcpServers": {
    "cryptoapis-prepare-transactions": {
      "command": "npx",
      "args": ["-y", "@cryptoapis-io/mcp-prepare-transactions"],
      "env": {
        "CRYPTOAPIS_API_KEY": "your_api_key_here"
      }
    }
  }
}

MCP Inspector

npx @modelcontextprotocol/inspector npx @cryptoapis-io/mcp-prepare-transactions --api-key YOUR_API_KEY

n8n

Start the server in HTTP mode:

npx @cryptoapis-io/mcp-prepare-transactions --transport http --port 3000 --api-key YOUR_API_KEY

In your n8n workflow, add an AI Agent node
Under Tools, add an MCP Client Tool and set the URL to http://localhost:3000/mcp

All servers default to port 3000. Use --port to assign different ports when running multiple servers.

Available Tools

`prepare_transactions_evm`

Prepare unsigned EVM transactions.

Action	Description
`prepare-transaction-from-address`	Prepare a native coin transfer from an address
`prepare-fungible-token-transfer`	Prepare an ERC-20 token transfer
`prepare-nft-transfer`	Prepare an ERC-721 NFT transfer

CLI Arguments

Argument	Description	Default
`--api-key`	Crypto APIs API key	`CRYPTOAPIS_API_KEY` env var
`--transport`	Transport type: `stdio` or `http`	`stdio`
`--host`	HTTP host	`0.0.0.0`
`--port`	HTTP port	`3000`
`--path`	HTTP path	`/mcp`
`--stateless`	Enable stateless HTTP mode	`false`

HTTP API Key Modes

When using HTTP transport, the server supports two API key modes:

With --api-key: The key is used for all requests. x-api-key request headers are ignored.
Without --api-key: Each request must include an x-api-key header with a valid Crypto APIs key. This enables hosting a public server where each user provides their own key.

# Per-request key mode (multi-tenant)
npx @cryptoapis-io/mcp-prepare-transactions --transport http --port 3000
# Clients send x-api-key header with each request

Stdio transport always requires an API key at startup.

Important: API Key Required

Warning: Making requests without a valid API

... View full README on GitHub

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

51/100across 5 weighted dimensions

How we score →

0255075100

−49

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

Checked @cryptoapis-io/mcp-prepare-transactions against OSV.dev.

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is io.github.CryptoAPIs-io/mcp-prepare-transactions safe to use?: io.github.CryptoAPIs-io/mcp-prepare-transactions has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install io.github.CryptoAPIs-io/mcp-prepare-transactions?: io.github.CryptoAPIs-io/mcp-prepare-transactions supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
What AI clients work with io.github.CryptoAPIs-io/mcp-prepare-transactions?: io.github.CryptoAPIs-io/mcp-prepare-transactions is compatible with claude-desktop, cursor, claude-code. It uses stdio and http transport.
Is io.github.CryptoAPIs-io/mcp-prepare-transactions actively maintained?: io.github.CryptoAPIs-io/mcp-prepare-transactions is recently maintained — last commit was 68 days ago.