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mcp/harbor
Verified official

D20DAO Verifiable Randomness MCP

v0.1.0

org.d20dao/vrf

Verifiable dice, draws and shuffles with on-chain VRF proofs on Arc. 0.05 USDC per draw.

transport:stdio runtime:npm
View source Website

Target client

run in your project directory

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

claude mcp add vrf -e D20_DAILY_LIMIT_USDC=<D20_DAILY_LIMIT_USDC> -e D20_NETWORK=<D20_NETWORK> -e D20_PAY_CHAIN=<D20_PAY_CHAIN> -e D20_WALLET_ADDRESS=<D20_WALLET_ADDRESS> -e D20_CIRCLE_CLI=<D20_CIRCLE_CLI> -e D20_MCP_HOME=<D20_MCP_HOME> -- npx -y @d20dao/mcp

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

This listing does not declare its tools. Connect the server and your client will discover them on the handshake.