Create a crypto withdrawal to an external wallet address
AI agents use create_crypto_withdrawal to commit financial operations through Mcp Ap2 — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool directly initiates a financial transaction by withdrawing cryptocurrency to an external wallet address. This is irreversible (crypto transactions cannot be undone), involves movement of real financial assets, and in the hands of a misused AI agent could result in complete loss of funds. It falls squarely in the Financial category, which takes highest severity precedence.
From the tool's definition 'Create a crypto withdrawal to an external wallet address' — moves cryptocurrency funds out of the system to an external wallet
Documented attack patterns abuse exactly the kind of access create_crypto_withdrawal gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Ap2, and nothing reaches the server without passing your rules. This is the rule we recommend for create_crypto_withdrawal:
{
"version": "1",
"default": "deny",
"tools": {
"create_crypto_withdrawal": {
"deny_if": [
{
"conditions": [],
"on_deny": "Requires human approval."
}
]
}
}
} Any call to create_crypto_withdrawal is blocked until a human approves it. The rest of the server keeps working.
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Create a crypto withdrawal to an external wallet address. It is categorised as a Financial tool in the Mcp Ap2 MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for create_crypto_withdrawal: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Mcp Ap2. Nothing to install.
create_crypto_withdrawal is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the create_crypto_withdrawal rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for create_crypto_withdrawal. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
create_crypto_withdrawal is provided by the Mcp Ap2 MCP server (@codespar/mcp-ap2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Mcp Ap2, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
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