io.github.agentzeny/snap-private-payments (MCP Server)

This MCP server provides actions for private agent payments on Solana using ZK proofs. It supports depositing and withdrawing funds, listing payment pools, and estimating transaction fees. Its scope is centered on privacy-preserving payments implemented with ZK proof systems (including Groth16) on Solana programs.

🛠️ Key Features

Deposit private payments via Solana ZK proofs
Withdraw private payments via Solana ZK proofs
List pools for payments
Estimate fees for transactions
Topics: agent-payments, ai-agents, groth16, privacy, solana, solana-program, zero-knowledge-proofs, zk-proofs

🚀 Use Cases

Payments for AI agents requiring private deposit/withdraw flows
Managing and discovering private payment pools
Estimating fees before interacting with the underlying Solana program

⚡ Developer Benefits

Clear operations: deposit, withdraw, list pools, estimate fees
Verifiable privacy approach based on ZK proofs on Solana

⚠️ Limitations

Described capabilities focus on payments, pools, and fee estimation; no additional tools are indicated in the provided data

Install

Configuration

Environment variables

SNAP_RPC_URLrequired

Solana RPC endpoint URL

SNAP_POOL_ADDRESSrequired

Default shielded pool address

SNAP_RELAYER_URL

Optional relayer URL for private withdrawals

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "snap-private-payments": {
      "command": "npx",
      "args": [
        "-y",
        "snap-mcp-server@0.1.2"
      ],
      "env": {
        "SNAP_RPC_URL": "<YOUR_SNAP_RPC_URL>",
        "SNAP_POOL_ADDRESS": "<YOUR_SNAP_POOL_ADDRESS>",
        "SNAP_RELAYER_URL": "<YOUR_SNAP_RELAYER_URL>"
      }
    }
  }
}

SNAP Protocol