# Universal Blockchain MCP

Connects AI agents to EVM networks and Solana for on-chain DeFi operations, market data feeds, and contract checks. Useful when agents need to perform swaps or pay for APIs via x402.

- MCP server · `type=mcp` · Claude Code, Codex, Cursor, GitHub Copilot, Windsurf (Devin Desktop), Cline, Zed · ★ 44
- Author: nirholas
- License: not stated · policy=link-only · description only; the file stays with the author
- Source: https://github.com/nirholas/universal-crypto-mcp
- Updated: 2026-10-21
- HTML: https://affpapa.org/en/nevibecode/mcp/universal-blockchain-mcp

## What it does

This MCP server exposes over 380 tools for direct blockchain interaction. It connects assistants to decentralized protocols like Uniswap and Aave, along with centralized exchanges Bybit and Binance. Built-in security checks evaluate smart contracts against honeypots via GoPlus before transactions run.

The repository bundles analytics tools covering CoinGecko and DefiLlama metrics. It also incorporates the x402 payment protocol. That mechanism lets autonomous agents handle micropayments and buy web API access directly on EVM or Solana chains. Communication works over stdio and HTTP transports.

Running this package requires Node.js version 18 or higher. Without that environment, the npx runner fails immediately.

## Install

### Claude Code (native platform)

**Install**
- The MCP registry has no launch command for it: see the repository README

## When to use it
- query token prices and market sentiment from CoinGecko
- scan smart contracts for honeypot risks through GoPlus
- execute token swaps using 1inch or ParaSwap aggregators
- transfer assets across chains with Stargate and Wormhole
- enable autonomous agent micropayments via the x402 protocol

## Example prompts
- Check this contract address for honeypot risks using GoPlus
- Fetch the current crypto fear and greed index
- Find the best swap route from ETH to USDC on Arbitrum

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NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md