Universal Blockchain MCP

🤖💰 Universal Crypto MCP

npx @nirholas/universal-crypto-mcp

[npm version] [npm downloads] [x402 enabled] [chains]

[MCP Compatible] [TypeScript] [Node.js 18+] [License: Apache 2.0]

[GitHub Stars] [Issues]

[Universal Crypto MCP Demo]

✨ What's New: AI Service Marketplace

Monetize your AI services & discover the best APIs! 💸

The AI Service Marketplace is a complete ecosystem for AI service discovery, monetization, and reputation management:

• 🏪 Register your AI service - Instant monetization with pay-per-use or subscriptions
• 🔍 AI agents discover services - Automatic discovery by category, price, and rating
• ⭐ On-chain reputation - Build trust with verified ratings and reviews
• 💳 Flexible pricing - Pay-per-use, subscriptions, free tiers
• 📊 Analytics dashboard - Track usage, revenue, and performance
• 🔒 Secure payments - Escrow, dispute resolution, automatic refunds

Learn more → | View Tutorial →

x402 Payment Protocol

AI agents can now pay for things on the internet! 💸

User: "Get premium weather data for Tokyo"
Claude: 🔍 Checking x402 balance... $45.23 USDs        💳 Paying $0.01 for premium API access...        ✅ Payment confirmed! Here's your detailed forecast:                🌤️ Tokyo Weather (7-day premium forecast)...

AI agents can now:

• 💸 Pay for premium APIs automatically
• 🏪 Sell their own services to other agents
• 🔄 Trade with other AI agents peer-to-peer
• ⛓️ Work across EVM + Solana chains

⭐ If you find this useful, please star the repo! It helps others discover this project.

A Universal Model Context Protocol server for all EVM-compatible networks + Solana.

Enable AI agents (Claude, ChatGPT, Cursor) to interact with any EVM blockchain through natural language.

🆚 Why Universal Crypto MCP?

📦 Package Structure

The most comprehensive crypto MCP monorepo with 10+ integrated packages from the best MIT-licensed projects:

packages/├── core/               # Shared types, utilities, configuration├── trading/            # CEX exchange integrations│   ├── binance/        # Binance spot & futures│   ├── binance-us/     # Binance US│   └── bybit/          # Bybit exchange (ethancod1ng) ⭐ NEW├── market-data/        # Prices, news, analytics  │   ├── prices/         # CoinGecko, DexPaprika, CoinMarketCap│   ├── news/           # CryptoPanic, aggregated news│   ├── analytics/      # Whale tracking, Fear/Greed, Dune│   ├── predictions/    # AI price predictions│   ├── crypto-indicators/  # Technical analysis (Kukapay) ⭐ NEW│   ├── crypto-sentiment/   # Sentiment analysis (Kukapay) ⭐ NEW│   ├── crypto-feargreed/   # Fear & Greed Index (Kukapay) ⭐ NEW│   ├── cryptopanic/        # News aggregation (Kukapay)│   └── coinmarketcap/      # CMC API (Shinzo Labs) ⭐ NEW├── defi/               # On-chain DeFi tools (60+ networks!)│   ├── protocols/      # EVM MCP Server (360⭐), Sperax, DEX│   │   ├── algorand/   # Algorand tools (GoPlausible) ⭐ NEW│   │   └── bsc-ops/    # BSC operations (TermiX) ⭐ NEW│   ├── chain-tools/    # BNB Chain, Onchain MCP│   └── agents/         # Autonomous DeFi agents├── wallets/            # Wallet management│   ├── evm/            # Ethereum & EVM wallets│   └── solana/         # Solana wallets├── payments/           # Payment infrastructure│   └── x402/           # x402 protocol, USDC transfers├── automation/         # Bots & automation│   ├── social/         # XActions Twitter automation│   ├── sweep/          # Dust sweeping│   └── volume/         # Volume tools└── generators/         # Meta-tools for building MCP servers    ├── abi-to-mcp/     # Convert ABIs to MCP tools    ├── repo-to-mcp/    # GitHub repos → MCP servers    ├── doc-extractor/  # Extract docs for LLMs    ├── registry/       # Lyra tool registry    └── discovery/      # Tool discovery & search

📖 View Package Documentation →

Integrated Community MCP Servers

This repo consolidates the best MIT-licensed crypto MCP projects with proper attribution:

All integrated projects maintain their original MIT licenses with full attribution.
See CONTRIBUTORS.md for detailed attribution and our modifications.

Supported Networks

EVM Chains

• Ethereum, BNB Smart Chain (BSC), Polygon, Arbitrum, Base, Optimism
• Avalanche, Fantom, zkSync Era, Linea, Scroll, Blast, Mode, Mantle
• opBNB + All testnets

Multi-Chain (NEW)

• Cosmos/IBC - ATOM, OSMO, JUNO, INJ, and more
• Near Protocol - NEAR native + contracts
• Sui - SUI with Move support
• Aptos - APT with Move support
• Bitcoin, Litecoin, Solana, TON, XRP, THORChain

Features

• 🔄 Swap/DEX - Token swaps via 1inch, 0x, ParaSwap
• 🌉 Bridge - Cross-chain transfers via LayerZero, Stargate, Wormhole
• ⛽ Gas - Gas prices across chains, EIP-1559 suggestions
• 📦 Multicall - Batch read/write operations
• 📊 Events/Logs - Query historical events, decode logs
• 🔒 Security - Rug pull detection, honeypot check, GoPlus token/address security, dApp phishing detection
• 💰 Staking - Liquid staking (Lido), LP farming
• ✍️ Signatures - Sign messages, verify signatures, EIP-712
• 🏦 Lending - Aave/Compound positions, borrow rates
• 📈 Price Feeds - Historical prices, TWAP, oracle aggregation
• 📁 Portfolio - Track holdings across chains
• 🏛️ Governance - Snapshot votes, on-chain proposals
• 🚀 Deployment - Deploy contracts, CREATE2, upgradeable proxies, verification
• 🛡️ MEV Protection - Flashbots Protect, private transactions, bundle simulation
• 🆔 ENS/Domains - Register, transfer, renew, set records, subdomains
• 📊 Market Data - CoinGecko & CoinStats prices, OHLCV, trending, categories, exchanges
• 🌐 DeFi Analytics - DefiLlama TVL, yields, fees, bridges, stablecoins, protocol data
• 💬 Social Sentiment - LunarCrush social metrics, influencers, trending topics
• 📈 DEX Analytics - DexPaprika & GeckoTerminal pools, trades, OHLCV, trending tokens
• 🔮 Predictions - Polymarket prediction markets, crypto forecasts
• 📉 Technical Indicators - 50+ indicators (RSI, MACD, Bollinger Bands, etc.)
• 🔔 Alerts - Price alerts, whale movement alerts, gas alerts (NEW)
• 📡 WebSockets - Real-time price streams, trade feeds, mempool monitoring (NEW)
• 🐋 Wallet Analytics - Whale tracking, wallet scoring, behavior analysis (NEW)
• 🌐 Multi-Chain - Cosmos, Near, Sui, Aptos native support (NEW)
• 💰 x402 Payments - AI agents can pay for premium APIs automatically (NEW)

💰 x402 Payment Protocol (NEW!)

[x402] [Give Claude Money]

Give Claude Money! AI agents can now make and receive cryptocurrency payments.

What is x402?

x402 implements HTTP 402 Payment Required, enabling AI agents to:

• 💸 Pay for APIs - Automatically pay for premium API access
• 🤖 Autonomous Payments - No human approval needed
• 🏦 Hold funds - Agents have their own crypto wallets
• 📈 Earn yield - Payments use USDs stablecoin (~5% APY auto-yield)

Quick Setup

# Add to your environmentexport X402_PRIVATE_KEY=0x...  # Your EVM private keyexport X402_CHAIN=arbitrum      # Default chain (or base, ethereum, polygon)

x402 Tools (14 Total)

Supported Networks

Example

User: "Get premium weather data for Tokyo"Agent: [calls x402_pay_request to weather API]       [automatically pays $0.01 in USDs]       "Here's the detailed forecast..."

x402 Architecture

┌─────────┐      ┌───────────┐      ┌───────────┐│ Claude  │─────▶│ MCP Server│─────▶│ Paid API  ││  (AI)   │      │  (x402)   │      │   (402)   │└─────────┘      └───────────┘      └───────────┘     │                │                   │     │  "Get data"    │  HTTP + Payment   │     │                │                   │     └────────────────┴───────────────────┘

📖 Full Documentation:

• x402 README - Overview and quick start
• Quickstart Guide - 5-minute setup
• MCP Tools Reference - All 14 tools explained
• Architecture - Technical deep dive
• Examples - Real-world use cases
• Security Guide - Best practices

Quick Start

Claude Desktop

Add to your claude_desktop_config.json:

{  "mcpServers": {    "universal-crypto-mcp": {      "command": "npx",      "args": ["-y", "@nirholas/universal-crypto-mcp@latest"],      "env": {        "PRIVATE_KEY": "your_private_key_here (optional)"      }    }  }}

Cursor

Add to your MCP settings:

{  "mcpServers": {    "universal-crypto-mcp": {      "command": "npx",      "args": ["-y", "@nirholas/universal-crypto-mcp@latest"],      "env": {        "PRIVATE_KEY": "your_private_key_here (optional)"      }    }  }}

ChatGPT Developer Mode

1. Enable Developer Mode in ChatGPT settings
2. Start the HTTP server:
   bash

   npx @nirholas/universal-crypto-mcp@latest --http

3. In ChatGPT Settings → Apps, click Create app
4. Enter your server URL: http://localhost:3001/mcp
5. Select the app in conversations via Developer mode menu

For detailed setup instructions, see ChatGPT Setup Guide.

Server Modes

Swap 0.1 ETH for USDC on Arbitrum

Get me a quote to swap 100 USDC to WBTC on Base

What's the best rate to swap 500 DAI to ETH across all DEXs on Ethereum?

What's the current price of Bitcoin and Ethereum in USD?

Show me the top 10 trending coins on CoinGecko right now

Get the 7-day OHLCV data for Solana

What's the market cap and 24h volume of BNB?

Show me the price of token 0xdAC17F958D2ee523a2206206994597C13D831ec7 on Ethereum

What's the total TVL of Aave across all chains?

Show me the top 10 protocols by TVL

What are the best yield opportunities for stablecoins right now?

How much volume did bridges process in the last 24 hours?

Show me the TVL history of Uniswap over the last 30 days

Show me the top trending pools on Uniswap V3

Get the most traded tokens on Base in the last 24 hours

Find all liquidity pools for PEPE on Ethereum

What's the price and liquidity of the ETH/USDC pool on Aerodrome?

Is this token safe? 0x95aD61b0a150d79219dCF64E1E6Cc01f0B64C4cE (SHIB)

Check if this token is a honeypot: 0x... on BSC

Scan my wallet for risky approvals: 0xYourAddress

Is this dApp URL safe to connect to? https://suspicious-site.xyz

What's the current staking APY for ETH on Lido?

Show me Aave lending rates for USDC on Arbitrum

What's my health factor on Aave if I borrow 1000 USDC against 2 ETH?

Bridge 100 USDC from Ethereum to Arbitrum

What's the cheapest way to bridge ETH from mainnet to Base?

Get a bridge quote for 0.5 ETH from Polygon to Optimism

What's the current gas price on Ethereum?

Get EIP-1559 gas fees for all supported chains

Is it cheap to transact on Arbitrum right now?

Show me active proposals on Uniswap

What's my voting power on Compound?

Get the results of the latest Aave governance vote

What's the social sentiment for Bitcoin right now?

Show me the top crypto influencers on social media

What tokens are trending on Twitter/X today?

Get the Galaxy Score for Ethereum

Resolve vitalik.eth to an address

Who owns the ENS domain "ethereum.eth"?

Register the domain mycoolname.eth for 1 year

Get the latest crypto news

Search news about Bitcoin ETF

What's the breaking news in DeFi?

Show my token balances on Ethereum: 0xYourAddress

Get all NFTs owned by vitalik.eth

What approvals have I granted from my wallet?

Track my portfolio across all EVM chains

Deploy a new ERC-20 token called "MyToken" (MTK) with 1 million supply on Base

Submit this transaction privately via Flashbots to avoid MEV

Encode a call to the transfer function for 100 USDC

Simulate this transaction before executing: 0x...

Calculate RSI for Bitcoin over the last 14 days

Get MACD signal for ETH/USDT on the 4-hour timeframe

Show Bollinger Bands for SOL with 20-period SMA

What's the current trend signal for BTC using multiple indicators?

Run a momentum strategy analysis on DOGE

What are the top crypto prediction markets on Polymarket?

Search for Bitcoin price predictions

What's the current odds for ETH reaching $5000?

Get all Transfer events for USDC in the last 100 blocks on Ethereum

Show me Approval events for my wallet address

Decode this transaction log: 0x...

Sign this message with my wallet: "Hello World"

Verify this signature is from vitalik.eth

Create an EIP-712 typed data signature for a permit

Get token balances for 10 different tokens in one call

Read multiple contract values at once from Aave

Batch check allowances for all my approved tokens

🧪 Testing

We use Vitest as our testing framework with comprehensive test coverage.

Running Tests

# Run all unit testsnpm test
# Run tests in watch mode (re-runs on file changes)npm run test:watch
# Run tests with coverage reportnpm run test:coverage
# Run E2E tests (requires network access)npm run test:e2e
# Run E2E tests in watch modenpm run test:e2e:watch
# Open interactive test UInpm run test:ui

MCP Inspector

Test your MCP tools interactively using the official MCP Inspector:

npm run test:inspector

This opens a browser-based UI where you can:

• Browse all available tools and prompts
• Test tool execution with custom parameters
• View tool responses and debug issues
• Validate your MCP server implementation

Test Structure

tests/├── setup.ts              # Global test setup├── e2e/                  # End-to-end tests│   ├── evm-tools.e2e.test.ts│   └── market-data.e2e.test.ts├── integration/          # Integration tests│   ├── evm-tools.test.ts│   └── multichain.test.ts└── mocks/                # Test mocks and fixtures
src/├── evm/│   ├── chains.test.ts    # Unit tests alongside source│   └── modules/│       └── */tools.test.ts└── utils/    ├── errors.test.ts    ├── helper.test.ts    └── validation.test.ts

Local Development

# Clonegit clone https://github.com/nirholas/universal-crypto-mcpcd universal-crypto-mcp
# Installnpm install
# Run dev server (stdio - Claude)npm run dev
# Run dev server (HTTP - ChatGPT)npm run dev:http
# Run dev server (SSE - legacy)npm run dev:sse

🧪 Testing

[Code Coverage] [Tests]

Running Tests

# Run all testsnpm test
# Run unit tests onlynpm run test:unit
# Run integration testsnpm run test:integration
# Run E2E tests (requires network access)npm run test:e2e
# Run tests with coverage reportnpm run test:coverage
# Run tests in watch mode (development)npm run test:watch

Test Structure

E2E Tests

End-to-end tests verify the complete tool execution flow:

• EVM Tools - Block, balance, token operations across chains
• DeFi Tools - Protocol TVL, yields, stablecoins via DefiLlama
• Market Data - CoinGecko, Fear & Greed index
• Multichain - Same operations across different networks
• Error Recovery - Error handling, invalid inputs, edge cases

Custom Test Utilities

The project includes custom Vitest matchers for MCP responses:

// In your test fileimport "../utils/assertions"
expect(result).toBeSuccessfulToolResponse()expect(result).toHaveJsonProperty("balance")expect(result).toContainValidAddress()expect(result).toContainToolError(/invalid/i)

Test Fixtures

Reusable test data in tests/utils/fixtures.ts:

import {  ETH_MAINNET_ADDRESSES,  MOCK_TOKEN_DATA,  generateRandomAddress} from "../utils/fixtures"

For detailed testing documentation, see tests/README.md.

⚙️ Environment Variables

Configure optional API keys for enhanced features. Create a .env file:

# Required for write operations (swaps, transfers, etc.)PRIVATE_KEY=your_private_key_here
# Market Data (optional - has free tier)COINGECKO_API_KEY=your_key        # https://coingecko.com/apiCOINSTATS_API_KEY=your_key        # https://coinstats.app
# Social Sentiment (optional)LUNARCRUSH_API_KEY=your_key       # https://lunarcrush.com/developers
# News (optional)CRYPTOPANIC_API_KEY=your_key      # https://cryptopanic.com/developers
# Cross-chain Swaps (optional)RUBIC_API_KEY=your_key            # https://rubic.exchange
# Custom RPC endpoints (optional - uses public RPCs by default)ETHEREUM_RPC_URL=https://mainnet.infura.io/v3/YOUR_KEYARBITRUM_RPC_URL=https://arb1.arbitrum.io/rpcBASE_RPC_URL=https://mainnet.base.org

What Works Without API Keys

Documentation

https://mcp.giving

� Documentation & Examples

📖 Documentation

Comprehensive guides and API references:

• Getting Started

  • Installation Guide
  • Configuration
  • Your First MCP Tool
  • Deployment Guide

• Package Documentation

  • Core Package
  • Trading
  • Market Data
  • Wallets
  • DeFi
  • Payments (x402)

• x402 Deploy Documentation

  • Overview
  • Quick Start
  • Configuration
  • Providers
  • Discovery

• Contributing

  • Development Guide
  • Testing
  • Releases

💻 Examples

Working code examples you can run and modify:

• Basic MCP Server - Minimal MCP server with market data tools
• Paid API Example - Add x402 payments to Express API
• Trading Bot - Automated trading bot with RSI + MA strategy
• Full Deployment - Production-ready server with all features

Each example includes:

• Complete source code
• README with setup instructions
• Package configuration
• Environment setup guide

�🗺️ Roadmap

A comprehensive roadmap of all crypto/blockchain/DeFi/Web3 features to be implemented.

Legend

• ✅ Implemented
• 🚧 In Progress
• 📋 Planned

Data Sources

This MCP server integrates with the following APIs:

Related MCP Servers

Additional specialized MCP servers, maintained in their own repositories:

Binance.com Server

Full Binance global API coverage including:

• Spot trading, wallet, staking, mining
• Convert, Simple Earn, Algo Trading (TWAP/VP)
• NFT, Pay, Copy Trading, Dual Investment
• VIP Loans, C2C/P2P, Fiat

{  "mcpServers": {    "binance": {      "command": "npx",      "args": ["ts-node", "binance-mcp-server/src/index.ts"],      "env": {        "BINANCE_API_KEY": "your_key",        "BINANCE_API_SECRET": "your_secret"      }    }  }}

Binance.US Server

US-regulated exchange with:

• Market data, spot trading, wallet
• Staking, OTC, sub-accounts
• Custodial solutions (institutional)

{  "mcpServers": {    "binance-us": {      "command": "node",      "args": ["binance-us-mcp-server/build/index.js"],      "env": {        "BINANCE_US_API_KEY": "your_key",        "BINANCE_US_API_SECRET": "your_secret"      }    }  }}

Credits

Built by nich (github.com/nirholas)

[Follow on X]

🏢 Who's Using This?

Universal Crypto MCP is used by developers and teams building:

• 🤖 AI Trading Bots - Automated portfolio management
• 📊 Analytics Dashboards - DeFi monitoring tools
• 🔒 Security Auditors - Token vetting workflows
• 🏦 DeFi Applications - Cross-chain operations
• 📱 Mobile Apps - Crypto portfolio trackers
• 🎓 Educational Tools - Blockchain learning platforms

Using Universal Crypto MCP? Let us know! We'd love to feature your project.

🤝 Contributing

We welcome contributions of all kinds! Please read our Contributing Guide for details.

Quick Start for Contributors

# Fork and clone the repogit clone https://github.com/YOUR_USERNAME/universal-crypto-mcp.gitcd universal-crypto-mcp
# Install dependenciesnpm install
# Create a feature branchgit checkout -b feat/your-feature
# Make your changes, then run checksnpm run lint          # Check code stylenpm test              # Run testsnpm run test:coverage # Check coverage
# Commit with conventional commitsgit commit -m "feat(module): add new feature"
# Push and create a PRgit push origin feat/your-feature

Code Style

We use Prettier for formatting and ESLint for linting:

npm run format    # Format codenpm run lint      # Check types and lintnpm run lint:fix  # Auto-fix issues

Ways to Contribute

• 🐛 Report bugs
• 💡 Request features
• 📖 Improve docs
• 🔧 Submit pull requests
• ⭐ Star the repo

📜 License

Apache-2.0 © nich

Stop copy-pasting blockchain queries. Let AI do it.
_{Made with 💜 for the crypto community}

[Star on GitHub]

🌐 Live HTTP Deployment

Universal Crypto MCP is deployed and accessible over HTTP via MCP Streamable HTTP transport — no local installation required.

Endpoint:

https://modelcontextprotocol.name/mcp/universal-crypto-mcp

Connect from any MCP Client

Add to your MCP client configuration (Claude Desktop, Cursor, SperaxOS, etc.):

{  "mcpServers": {    "universal-crypto-mcp": {      "type": "http",      "url": "https://modelcontextprotocol.name/mcp/universal-crypto-mcp"    }  }}

Available Tools (11)

Example Requests

Get crypto prices:

curl -X POST https://modelcontextprotocol.name/mcp/universal-crypto-mcp \  -H "Content-Type: application/json" \  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"get_price","arguments":{"ids":"bitcoin","vs_currencies":"usd"}}}'

Market overview:

curl -X POST https://modelcontextprotocol.name/mcp/universal-crypto-mcp \  -H "Content-Type: application/json" \  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"get_market_overview","arguments":{"limit":10}}}'

Trending coins:

curl -X POST https://modelcontextprotocol.name/mcp/universal-crypto-mcp \  -H "Content-Type: application/json" \  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"get_trending","arguments":{}}}'

List All Tools

curl -X POST https://modelcontextprotocol.name/mcp/universal-crypto-mcp \  -H "Content-Type: application/json" \  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

Also Available On

• SperaxOS — Browse and install from the MCP marketplace
• All 27 MCP servers — See the full catalog at modelcontextprotocol.name

Powered by modelcontextprotocol.name — the open MCP HTTP gateway

Star History

[Star History Chart]

Support the project

If universal-crypto-mcp saves you time, star it on GitHub. Stars are how other developers and AI agents find the repositories worth trusting, and they cost you one click.

Know someone who would use it? Post on X · Share on Bluesky · Share on LinkedIn · Submit to Hacker News · Share on Reddit

Built for AI agents too

Coding agents and LLM tooling can read this repo directly: AGENTS.md, llms.txt, llms-full.txt. Point an agent at https://github.com/nirholas/universal-crypto-mcp and it has the context it needs.

More from the same author

• All repositories by nirholas: the full catalog, grouped by topic
• three.ws: the platform for 3D AI agents with Solana wallets, a skill marketplace and x402 payments
• Questions or ideas: open an issue or start a discussion

Contributors

[Contributors]