Onchain Agent Wallets MCP Server

io.github.nirholas/onchain-agent-wallets

Repository Registry

What is the Onchain Agent Wallets MCP server?

Give an AI agent a Solana spending allowance instead of your key. Chain-enforced cap, x402.

How to install Onchain Agent Wallets

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

OWNER_SECRET_KEY
secret
Owner secret key, base58 or a JSON byte array. Optional: without it every owner action is returned as an unsigned transaction for Phantom, Solflare, Backpack, or a Ledger to sign.
OAW_NETWORK
Cluster: mainnet or devnet. Defaults to mainnet. State is kept per network, so a devnet rehearsal never touches mainnet agents.
SOLANA_RPC_URL
HTTPS Solana RPC endpoint. Defaults to the public endpoint for the configured network; bring your own (Helius / Quicknode / Triton) for production.
OAW_STATE_DIR
Where agent keypairs, guardrails, and the spend ledger are stored. Defaults to ~/.onchain-agent-wallets, written 0600 inside a 0700 directory.
REQUIRE_CONFIRM
Refuse to broadcast anything that moves value until the call is re-issued with confirm:true. Default true.

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "onchain-agent-wallets": {
      "command": "npx",
      "args": [
        "-y",
        "@three-ws/onchain-agent-wallets"
      ],
      "env": {
        "OWNER_SECRET_KEY": "<YOUR_OWNER_SECRET_KEY>",
        "OAW_NETWORK": "<YOUR_OAW_NETWORK>",
        "SOLANA_RPC_URL": "<YOUR_SOLANA_RPC_URL>",
        "OAW_STATE_DIR": "<YOUR_OAW_STATE_DIR>",
        "REQUIRE_CONFIRM": "<YOUR_REQUIRE_CONFIRM>"
      }
    }
  }
}

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