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To add BrainChain 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 5 environment variables, listed below.
Install
npx -y brainchain-mcp@0.3.0Environment variables
BRAINCHAIN_PAYER_KEYSet in your MCP configBRAINCHAIN_NETWORKSet in your MCP configBRAINCHAIN_PAY_ONSet in your MCP configBRAINCHAIN_MAX_PRICE_UNITSSet in your MCP configBRAINCHAIN_BUDGET_UNITSSet in your MCP configInstall with your client
claude mcp add brainchain --env BRAINCHAIN_PAYER_KEY=<YOUR_BRAINCHAIN_PAYER_KEY> --env BRAINCHAIN_NETWORK=<YOUR_BRAINCHAIN_NETWORK> --env BRAINCHAIN_PAY_ON=<YOUR_BRAINCHAIN_PAY_ON> --env BRAINCHAIN_MAX_PRICE_UNITS=<YOUR_BRAINCHAIN_MAX_PRICE_UNITS> --env BRAINCHAIN_BUDGET_UNITS=<YOUR_BRAINCHAIN_BUDGET_UNITS> -- npx -y brainchain-mcp@0.3.0
Run this in a terminal to add the server to Claude Code.
What this does
BrainChain 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:
BRAINCHAIN_PAYER_KEY BRAINCHAIN_NETWORK BRAINCHAIN_PAY_ON BRAINCHAIN_MAX_PRICE_UNITS BRAINCHAIN_BUDGET_UNITS
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install BrainChain?
Run the Claude Code command in the install section to add BrainChain 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 BrainChain?
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 BrainChain as well.
Does BrainChain need an API key?
Yes. Before it can run, set these environment variables: BRAINCHAIN_PAYER_KEY, BRAINCHAIN_NETWORK, BRAINCHAIN_PAY_ON, BRAINCHAIN_MAX_PRICE_UNITS, BRAINCHAIN_BUDGET_UNITS. 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.
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