Self-custodial crypto portfolio: read EVM DeFi, sign on Ledger via WalletConnect.
To add Recon Crypto MCP to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 9 environment variables, listed below.
Install
npx -y recon-crypto-mcp@0.3.1Environment variables
ETHEREUM_RPC_URLSet in your MCP configARBITRUM_RPC_URLSet in your MCP configPOLYGON_RPC_URLSet in your MCP configBASE_RPC_URLSet in your MCP configRPC_PROVIDERSet in your MCP configRPC_API_KEYSet in your MCP configETHERSCAN_API_KEYSet in your MCP configONEINCH_API_KEYSet in your MCP configWALLETCONNECT_PROJECT_IDSet in your MCP configInstall with your client
claude mcp add recon-crypto --env ETHEREUM_RPC_URL=<YOUR_ETHEREUM_RPC_URL> --env ARBITRUM_RPC_URL=<YOUR_ARBITRUM_RPC_URL> --env POLYGON_RPC_URL=<YOUR_POLYGON_RPC_URL> --env BASE_RPC_URL=<YOUR_BASE_RPC_URL> --env RPC_PROVIDER=<YOUR_RPC_PROVIDER> --env RPC_API_KEY=<YOUR_RPC_API_KEY> --env ETHERSCAN_API_KEY=<YOUR_ETHERSCAN_API_KEY> --env ONEINCH_API_KEY=<YOUR_ONEINCH_API_KEY> --env WALLETCONNECT_PROJECT_ID=<YOUR_WALLETCONNECT_PROJECT_ID> -- npx -y recon-crypto-mcp@0.3.1
Run this in a terminal to add the server to Claude Code.
What this does
Recon Crypto MCP exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server needs the following environment variables to be set before it can run:
ETHEREUM_RPC_URL ARBITRUM_RPC_URL POLYGON_RPC_URL BASE_RPC_URL RPC_PROVIDER RPC_API_KEY ETHERSCAN_API_KEY ONEINCH_API_KEY WALLETCONNECT_PROJECT_ID
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install Recon Crypto MCP?
Run the Claude Code command in the install section to add Recon Crypto MCP to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with Recon Crypto MCP?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to Recon Crypto MCP as well.
Does Recon Crypto MCP need an API key?
Yes. Before it can run, set these environment variables: ETHEREUM_RPC_URL, ARBITRUM_RPC_URL, POLYGON_RPC_URL, BASE_RPC_URL, RPC_PROVIDER, RPC_API_KEY, ETHERSCAN_API_KEY, ONEINCH_API_KEY, WALLETCONNECT_PROJECT_ID. They go in the env block of your MCP config.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
Is this your MCP server?
Claim this listing to see its traffic, fix details yourself, and skip the review queue on future updates.
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