Blockscout
A server that exposes blockchain data (balances, tokens, NFTs, contract metadata) via the Model Context Protocol, enabling AI agents and tools to access and analyze blockchain information contextually.
What is Blockscout?
Blockscout is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to server that exposes blockchain data (balances, tokens, nfts, contract metadata) via the model context protocol, enabling ai agents and tools to access and analyze blockchain information contextually....
A server that exposes blockchain data (balances, tokens, NFTs, contract metadata) via the Model Context Protocol, enabling AI agents and tools to access and analyze blockchain information contextually.
This server falls under the Finance & Fintech category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- A server that exposes blockchain data (balances, tokens, NFT
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx blockscout-mcp-serverConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use Blockscout
The Blockscout MCP Server exposes a comprehensive set of blockchain data tools through the Model Context Protocol, allowing AI assistants to query token balances, NFT holdings, transaction histories, contract ABIs, and ENS name resolutions across multiple EVM-compatible chains. It connects to the Blockscout Pro API and surfaces 16 structured tools covering everything from chain discovery to raw API passthrough, making it suitable for AI-powered DeFi analysis, portfolio review, and smart contract research. Developers and analysts who want their AI assistant to reason over on-chain data without building a custom blockchain integration will find this the fastest path to that capability.
Prerequisites
- A Blockscout Pro API key (obtain from blockscout.com — required for most tools)
- Claude Desktop, Claude Code, or another MCP-compatible client
- No local installation required — the server is hosted at https://mcp.blockscout.com/mcp
Obtain a Blockscout Pro API key
Visit blockscout.com and sign up for a Blockscout Pro account to get your API key. The key is passed as an HTTP header when connecting to the hosted MCP server. Community/free usage may be possible without a key for limited queries.
Add the server to Claude Code via HTTP transport
The Blockscout MCP server is hosted remotely and uses HTTP transport. Add it to Claude Code with the `claude mcp add` command, passing your API key as a request header.
claude mcp add --transport http blockscout https://mcp.blockscout.com/mcp \
--header "Blockscout-MCP-Pro-Api-Key: proapi_your_key_here"Alternative: Add to Claude Desktop config
For Claude Desktop, edit claude_desktop_config.json to add the server using the mcp-remote proxy with the HTTP endpoint and API key header.
{
"mcpServers": {
"blockscout": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://mcp.blockscout.com/mcp",
"--header",
"Blockscout-MCP-Pro-Api-Key: proapi_your_key_here"
]
}
}
}Verify the connection by listing available chains
Ask your AI client to call the `get_chains_list` tool to confirm the server is connected and returning data. This lists all blockchain networks supported by Blockscout.
Query blockchain data with natural language
Use the 16 available tools through natural language prompts. The server handles ENS resolution, token lookups, contract inspection, NFT inventories, transaction history, and more.
Blockscout Examples
Client configuration
Claude Desktop configuration using mcp-remote to connect to the hosted Blockscout MCP server over HTTP.
{
"mcpServers": {
"blockscout": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://mcp.blockscout.com/mcp",
"--header",
"Blockscout-MCP-Pro-Api-Key: proapi_your_key_here"
]
}
}
}Prompts to try
These prompts exercise the real tools exposed by the Blockscout MCP server:
- "What ERC-20 tokens does zeaver.eth hold on Ethereum?"
- "Show me the last 10 transactions for address 0xcafe...cafe on Optimism"
- "Get the ABI for contract 0xFe89cc7aBB2C4183683ab71653C4cdc9B02D44b7 on Ethereum"
- "Is 0xcafe...cafe a contract or an EOA on Base?"
- "Calculate total gas fees paid by vitalik.eth on Ethereum in May 2025"
- "Look up which NFTs are held by address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"Troubleshooting Blockscout
API returns 401 Unauthorized or low-credit errors
Check that your Blockscout Pro API key is correct and set in the `Blockscout-MCP-Pro-Api-Key` header. If your credit balance is below the `BLOCKSCOUT_PRO_API_LOW_CREDITS_THRESHOLD` (default 5000), the server will warn you. Recharge credits on the Blockscout Pro dashboard.
ENS resolution returns no result for a known domain
Ensure you are querying against the Ethereum mainnet chain, as ENS is Ethereum-native. Pass the correct chain_id (1 for Ethereum mainnet) when calling `get_address_by_ens_name`.
mcp-remote not found when starting Claude Desktop
Run `npx -y mcp-remote --version` to confirm the package is accessible via npx. If you're behind a corporate proxy, configure npm proxy settings or install mcp-remote globally with `npm install -g mcp-remote`.
Frequently Asked Questions about Blockscout
What is Blockscout?
Blockscout is a Model Context Protocol (MCP) server that server that exposes blockchain data (balances, tokens, nfts, contract metadata) via the model context protocol, enabling ai agents and tools to access and analyze blockchain information contextually. It connects AI assistants to external tools and data sources through a standardized interface.
How do I install Blockscout?
Follow the installation instructions on the Blockscout GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with Blockscout?
Blockscout works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is Blockscout free to use?
Yes, Blockscout is open source and available under the NOASSERTION license. You can use it freely in both personal and commercial projects.
Blockscout Alternatives — Similar Finance & Fintech Servers
Looking for alternatives to Blockscout? Here are other popular finance & fintech servers you can use with Claude, Cursor, and VS Code.
ValueCell
★ 10.7kValueCell is a community-driven, multi-agent platform for financial applications.
Vibe Trading
★ 8.1k'Vibe-Trading: Your Personal Trading Agent'
Quantdinger
★ 6.2kAI quantitative trading platform for crypto, stocks, and forex with backtesting, live trading, market data, and multi-agent research.vibe-trading ,trading-agents,ai-trader,ai-trading
TradingView
★ 2.8kReal-time crypto & stock screening, advanced technical indicators, Bollinger Bands intelligence, candlestick patterns + native Claude Desktop integration. Multi-exchange (Binance, KuCoin, Bybit+). Open-source AI trading infrastructure.
Financial Datasets
★ 2.1kProvides access to comprehensive financial data including income statements, balance sheets, cash flow statements, stock prices, company news, SEC filings, and cryptocurrency information with built-in financial ratio analysis.
Stripe
★ 1.6kThe Stripe Model Context Protocol server allows you to integrate with Stripe APIs through function calling. This protocol supports various tools to interact with different Stripe services.
Browse More Finance & Fintech MCP Servers
Explore all finance & fintech servers available in the MCPgee directory. Each server includes setup guides for Claude, Cursor, and VS Code.
Set Up Blockscout in Your Editor
Choose your AI client for step-by-step setup instructions.
Quick Config Preview
Add this to your claude_desktop_config.json or .cursor/mcp.json
Ready to use Blockscout?
Browse our complete directory of 33,000+ MCP servers, read setup guides for your editor, and start building with the Model Context Protocol.