D20DAO Verifiable Randomness

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "org.d20dao/vrf",
  "description": "Verifiable VRF draws on Arc, 0.05 USDC each. On Robinhood Chain, integrate on chain with the SDK.",
  "title": "D20DAO Verifiable Randomness",
  "repository": {
    "url": "https://github.com/d20dao/mcp",
    "source": "github"
  },
  "version": "0.1.2",
  "websiteUrl": "https://d20dao.org/docs/agents",
  "packages": [
    {
      "registryType": "npm",
      "identifier": "@d20dao/mcp",
      "version": "0.1.2",
      "transport": {
        "type": "stdio"
      },
      "environmentVariables": [
        {
          "description": "Spending cap per UTC day in USDC (default 1; 0 turns paid draws off).",
          "name": "D20_DAILY_LIMIT_USDC"
        },
        {
          "description": "Arc Mainnet (default) or Arc Testnet.",
          "name": "D20_NETWORK"
        },
        {
          "description": "Circle CLI chain code to pay from, such as ARC or BASE (default: first funded).",
          "name": "D20_PAY_CHAIN"
        },
        {
          "description": "Agent wallet to pay from (default: the first one the Circle CLI lists).",
          "name": "D20_WALLET_ADDRESS"
        },
        {
          "description": "Path to the Circle CLI's dist/index.js (default: circle on PATH).",
          "name": "D20_CIRCLE_CLI"
        },
        {
          "description": "Folder for the daily spending record (default ~/.d20dao-mcp).",
          "name": "D20_MCP_HOME"
        }
      ]
    }
  ]
}