Molpha MCP Server

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add mcp -e 'SIGNER_BACKEND=<SIGNER_BACKEND>' -- npx -y @molpha/mcp

{
  "mcpServers": {
    "mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@molpha/mcp"
      ],
      "env": {
        "SIGNER_BACKEND": "<SIGNER_BACKEND>"
      }
    }
  }
}

[mcp_servers.mcp]
command = "npx"
args = ["-y", "@molpha/mcp"]
env = { SIGNER_BACKEND = "<SIGNER_BACKEND>" }

{
  "mcpServers": {
    "mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@molpha/mcp"
      ],
      "env": {
        "SIGNER_BACKEND": "<SIGNER_BACKEND>"
      }
    }
  }
}

{
  "servers": {
    "mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@molpha/mcp"
      ],
      "env": {
        "SIGNER_BACKEND": "<SIGNER_BACKEND>"
      }
    }
  }
}

Put your own value in place of <SIGNER_BACKEND> (Signing backend: memory (local keypair) or keychain (Privy / Turnkey)). The author’s registry entry marks it as required.

Optional settings from the registry entry, left out of the block above: OWNER_KEYPAIR (Path to a Solana JSON keypair file. Required when SIGNER_BACKEND=memory), KEYCHAIN_BACKEND (Keychain provider: privy or turnkey. Required when SIGNER_BACKEND=keychain), PRIVY_APP_ID (Privy app ID. Required for KEYCHAIN_BACKEND=privy), PRIVY_APP_SECRET (Privy app secret. Required for KEYCHAIN_BACKEND=privy), PRIVY_WALLET_ID (Privy wallet ID. Required for KEYCHAIN_BACKEND=privy), PRIVY_WALLET_ADDRESS (Solana address for the Privy wallet), TURNKEY_API_PUBLIC_KEY (Turnkey API public key. Required for KEYCHAIN_BACKEND=turnkey), TURNKEY_API_PRIVATE_KEY (Turnkey API private key. Required for KEYCHAIN_BACKEND=turnkey), TURNKEY_ORGANIZATION_ID (Turnkey organization ID. Required for KEYCHAIN_BACKEND=turnkey), TURNKEY_WALLET_ADDRESS (Solana address for the Turnkey wallet), SOLANA_RPC (Solana RPC endpoint), GATEWAY_ENDPOINTS (Comma-separated Molpha gateway URLs. Leave empty to use the SDK default), MOLPHA_EVM_NETWORKS (Comma-separated EVM verifier networks), MOLPHA_STARKNET_NETWORKS (Comma-separated Starknet verifier networks), MOLPHA_DRY_RUN (Preview all write and spend operations without submitting them), MOLPHA_MAX_EXECUTES_PER_DAY (Process-local daily Solana submit cap), MOLPHA_X402_MAX_PRICE_USDC (Refuse to fund an x402 round priced above this amount (decimal USDC)), MOLPHA_X402_MAX_SPEND_PER_DAY_USDC (Process-local daily x402 spend cap (decimal USDC)), MOLPHA_X402_GATEWAY_PDA (Optional settling gateway PDA (base58) to skip discovery when the escrow is already funded).