agent-wallet-mcp
Enables agents to maintain sandboxed spend ledgers, enforce monthly budgets, transfer funds between agents, and generate invoices, all without real financial accounts.
README
<p align="center"> <img src="assets/logo.png" width="80" alt="AgentPay"> </p>
AgentWallet MCP
Your agent can maintain its own sandboxed spend ledger, enforce monthly budgets on itself, transfer funds to other agents, and generate formal invoices — all without touching your financial accounts.
The wallet is a local numeric ledger (stored in ~/.agentwallet/). It is not connected to any bank, payment processor, or blockchain. Use it to model agent-to-agent accounting and spending limits within your own infrastructure.
What your agent can do
- Create a wallet for any agent ID and fund it with an initial balance
- Check current balance, monthly spend total, and pending transactions at any time
- Deposit and withdraw from any wallet, with automatic budget enforcement on withdrawal
- Transfer between two agent wallets in a single atomic operation — both sides recorded
- Set a hard monthly spending cap: withdrawals and transfers that would exceed it are rejected at the time of the call
- Generate numbered invoice records (
INV-000001, etc.) for agent-to-agent service billing
Installation
Requires: Python 3.10+, mcp package.
pip install mcp
Claude Desktop — add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):
{
"mcpServers": {
"agent-wallet": {
"command": "python",
"args": ["/absolute/path/to/agent-wallet-mcp/server.py"]
}
}
}
Cursor — add to .cursor/mcp.json in your project root:
{
"mcpServers": {
"agent-wallet": {
"command": "python",
"args": ["/absolute/path/to/agent-wallet-mcp/server.py"]
}
}
}
Tool Reference
| Tool | Description | Key params |
|---|---|---|
wallet_create |
Create a new wallet for an agent | agent_id (required), initial_balance (default: 0) |
wallet_balance |
Get balance, total spent, monthly budget, and pending count | agent_id |
wallet_deposit |
Add funds to a wallet | agent_id, amount, source |
wallet_withdraw |
Remove funds; rejected if monthly budget would be exceeded | agent_id, amount, destination |
wallet_transfer |
Move funds between two wallets atomically; honors source budget | from_agent_id, to_agent_id, amount, reason |
wallet_transactions |
Recent transaction history, newest first | agent_id, limit (default: 20) |
wallet_set_budget |
Set or remove monthly spending cap (0 = no limit) | agent_id, monthly_budget |
wallet_invoice |
Generate a numbered invoice record between two agents | from_agent_id, to_agent_id, amount, description |
Data Storage
~/.agentwallet/
├── wallets/
│ └── <agent_id>.json # balance, budget, total_spent
├── transactions/
│ └── <agent_id>.json # full transaction history
├── invoices/
│ └── INV-000001.json # invoice records
└── _invoice_counter.json # auto-incrementing invoice number
Budget Enforcement
When monthly_budget > 0, the server rejects any withdrawal or transfer where total_spent + amount > monthly_budget. The check runs synchronously before the balance is modified. Set monthly_budget to 0 to remove the limit.
Pricing
| Plan | Price | Included |
|---|---|---|
| Pro | $19/month | Unlimited wallets, transactions, and invoices |
License
Proprietary — see subscription terms. Source: github.com/Rumblingb/agent-wallet-mcp
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