D20DAO Verifiable Randomness MCP Server
by d20daoorg.d20dao/vrfv0.1.0
Verifiable dice, draws and shuffles with on-chain VRF proofs on Arc. 0.05 USDC per draw.
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Active20d ago
Install D20DAO Verifiable Randomness MCP server
Install in Claude Code
claude mcp add d20dao -- npx -y @d20dao/mcpInstall in Cursor
{
"mcpServers": {
"d20dao": {
"command": "npx",
"args": [
"-y",
"@d20dao/mcp"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"d20dao": {
"command": "npx",
"args": [
"-y",
"@d20dao/mcp"
]
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"d20dao": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@d20dao/mcp"
]
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"d20dao": {
"command": "npx",
"args": [
"-y",
"@d20dao/mcp"
]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| D20_DAILY_LIMIT_USDC | — | — | Spending cap per UTC day in USDC (default 1; 0 turns paid draws off). |
| D20_NETWORK | — | — | mainnet (default) or testnet. |
| D20_PAY_CHAIN | — | — | Circle CLI chain code to pay from, such as ARC or BASE (default: first funded). |
| D20_WALLET_ADDRESS | — | — | Agent wallet to pay from (default: the first one the Circle CLI lists). |
| D20_CIRCLE_CLI | — | — | Path to the Circle CLI's dist/index.js (default: circle on PATH). |
| D20_MCP_HOME | — | — | Folder for the daily spending record (default ~/.d20dao-mcp). |
Freshness
Active — last maintenance signal 20d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-09-19 · 20d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-09-19 · 20d ago · official registry · v0.1.0
FAQ
›How do I install the D20DAO Verifiable Randomness MCP server in Claude Code?
Run: claude mcp add d20dao -- npx -y @d20dao/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does D20DAO Verifiable Randomness require an API key?
No required environment variables are declared in its published metadata.
›Can I use D20DAO Verifiable Randomness as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is D20DAO Verifiable Randomness in the official MCP registry?
Yes, as org.d20dao/vrf.