transfer

THE RISK

Critical Risk

Why transfer needs a policy

This tool moves money from one wallet to another destination address, which is an irreversible financial commitment that directly transfers value. Even with provisional endpoint status, the capability to send transfers is the most severe risk category. An AI agent misusing this could drain wallets, send funds to wrong addresses, or execute unauthorized payments, making this critical severity.

From the tool's definition Tool name 'transfer' with description 'Send a transfer from a wallet to a destination address' clearly indicates movement of funds. Server context 'Agent-to-Agent Payment Protocol' confirms financial purpose.

Documented attack patterns abuse exactly the kind of access transfer gives an agent:

POLICY

How to control transfer

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 transfer:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "transfer": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

Any call to transfer is blocked until a human approves it. The rest of the server keeps working.

Create a free account and register Mcp Ap2 — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

GATE THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Mcp Ap2 tools

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All 1300 Mcp Ap2 tools →

Financial tools on other servers

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Go deeper

Critical-risk tools in Mcp Ap2 → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Human-in-the-loop → When a tool call should wait for a person — and when policy can decide alone.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
How to Add Spending Controls to Any MCP Agent →
Rate Limiting MCP Tool Calls: A Practical Guide →

FAQ

Questions about transfer

What does the transfer tool do? +

Send a transfer from a wallet to a destination address. Returns the tx hash + initial status. Endpoint set provisional. 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.

How do I enforce a policy on transfer? +

Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for transfer: 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.

What risk level is transfer? +

transfer is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit transfer? +

Yes. Add a rate_limit block to the transfer 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.

How do I block transfer completely? +

Set action: deny in the PolicyLayer policy for transfer. 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.

What MCP server provides transfer? +

transfer 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.

Enforce policy on every Mcp Ap2 tool call.

Start from Mcp Ap2, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →