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Privy Server

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Enables AI agents to create wallets, sign transactions, and manage blockchain operations across multiple chains like Ethereum, Solana, and more via Privy.

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About

Enables AI agents to create wallets, sign transactions, and manage blockchain operations across multiple chains like Ethereum, Solana, and more via Privy.

README

npm version License: MIT

Give your AI agent a wallet with Privy. This MCP (Model Context Protocol) server enables Claude and other AI assistants to create wallets, sign transactions, and manage blockchain operations.

Installation

Option 1: npx (Recommended)

Run directly without installation:

npx @privy-io/mcp-server

Option 2: Global Install

npm install -g @privy-io/mcp-server
privy-mcp-server

Option 3: From Source

git clone https://github.com/privy-io/privy-mcp-server.git
cd privy-mcp-server
npm install && npm run build

Quick Start

1. Get Your Credentials

From the Privy Dashboard:

  • App ID & Secret: Settings → Basics

2. Configure Your MCP Client

Add to your MCP client configuration:

Claude Desktop (~/.config/claude/claude_desktop_config.json)
{
  "mcpServers": {
    "privy": {
      "command": "npx",
      "args": ["@privy-io/mcp-server"],
      "env": {
        "PRIVY_APP_ID": "your-app-id",
        "PRIVY_APP_SECRET": "your-app-secret"
      }
    }
  }
}
Cursor (~/.cursor/mcp.json)
{
  "mcpServers": {
    "privy": {
      "command": "npx",
      "args": ["@privy-io/mcp-server"],
      "env": {
        "PRIVY_APP_ID": "your-app-id",
        "PRIVY_APP_SECRET": "your-app-secret"
      }
    }
  }
}
Claude Code (project .mcp.json)
{
  "privy": {
    "command": "npx",
    "args": ["@privy-io/mcp-server"],
    "env": {
      "PRIVY_APP_ID": "your-app-id",
      "PRIVY_APP_SECRET": "your-app-secret"
    }
  }
}

3. Start Using!

Ask Claude to create a wallet:

"Create an Ethereum wallet for me"

Supported Chains

Chain Type Status
Ethereum (+ all EVM) ethereum ✅ Full support
Solana solana ✅ Full support
Cosmos cosmos ✅ Supported
Stellar stellar ✅ Supported
Sui sui ✅ Supported
Aptos aptos ✅ Supported
Tron tron ✅ Supported
Bitcoin (SegWit) bitcoin-segwit ✅ Supported
Near near ✅ Supported
TON ton ✅ Supported
Starknet starknet ✅ Supported

Available Tools

Wallet Management

Tool Description
create_wallet Create a new wallet on any supported chain
get_wallet_details Get wallet info by ID
get_wallets List all wallets
get_wallet_balance Check balance (ETH, USDC, etc.)
get_wallet_transactions Get transaction history
update_wallet Update wallet policies

Ethereum Operations

Tool Description
eth_sendTransaction Sign and broadcast (supports gas sponsorship)
personal_sign Sign a message (EIP-191)
eth_signTransaction Sign without broadcasting
eth_signTypedData_v4 Sign EIP-712 typed data
secp256k1_sign Sign a hash directly
raw_sign Sign raw data

Solana Operations

Tool Description
solana_signAndSendTransaction Sign and broadcast
solana_signMessage Sign a message
solana_signTransaction Sign without broadcasting

Policies (Access Control)

Tool Description
create_policy Create transaction policies
get_policy / update_policy / delete_policy Manage policies
add_rule_to_policy Add rules to control transactions
get_policy_rule / update_policy_rule / delete_policy_rule Manage rules

Key Quorums (Multi-sig)

Tool Description
create_key_quorum Create a key quorum for multi-sig
get_key_quorum / update_key_quorum / delete_key_quorum Manage quorums

Transactions

Tool Description
get_transaction Get transaction details by ID

Example Conversations

You: Create a wallet and check its balance

Claude: I'll create an Ethereum wallet and check the balance.
🔧 create_wallet → { id: "wallet-abc", address: "0x742d35Cc..." }
🔧 get_wallet_balance → { balance: "0 ETH" }

Done! Your wallet 0x742d35Cc... has been created with 0 ETH.
You: Send 0.01 ETH to 0x123... on Base

Claude: I'll send 0.01 ETH to that address on Base.
🔧 eth_sendTransaction → { hash: "0xabc123...", status: "pending" }

Transaction submitted! Hash: 0xabc123...

Environment Variables

Variable Required Description
PRIVY_APP_ID Yes Your Privy App ID
PRIVY_APP_SECRET Yes Your Privy App Secret
PRIVY_AUTHORIZATION_PRIVATE_KEY No For signing ops on owner-controlled wallets
PRIVY_API_BASE_URL No Custom API URL (default: https://api.privy.io/v1)

Testing

Use the MCP Inspector to test tools interactively:

npm run inspector

Security Best Practices

  • Never commit credentials - Use environment variables
  • Use policies to restrict what transactions your agent can execute
  • Set up key quorums for high-value operations requiring multiple approvals
  • Monitor transactions via Privy Dashboard webhooks

Resources

Contributing

Contributions welcome! Please read our contributing guidelines and submit PRs to the main branch.

License

MIT - see LICENSE for details.

from github.com/privy-io/privy-mcp-server

Install Privy Server in Claude Desktop, Claude Code & Cursor

Recommended · one command, every IDE
unyly install privy-mcp-server

Installs into Claude Desktop, Claude Code, Cursor & VS Code — handles npx, uvx and build-from-source repos for you.

First time? Get the CLI: curl -fsSL https://unyly.org/install | sh

Or configure manually

Run in your terminal:

claude mcp add privy-mcp-server -- npx -y @privy-io/mcp-server

FAQ

Is Privy Server MCP free?

Yes, Privy Server MCP is free — one-click install via Unyly at no cost.

Does Privy Server need an API key?

No, Privy Server runs without API keys or environment variables.

Is Privy Server hosted or self-hosted?

A hosted option is available: Unyly runs the server in the cloud, no local setup required.

How do I install Privy Server in Claude Desktop, Claude Code or Cursor?

Open Privy Server on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.

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