Create a batch payout via POST /v1/payments/payouts. sender_batch_header carries metadata; items is an array of payout_item objects each with recipient_type, amount { currency, value }, receiver, and note. Async — poll get_payout to track status.
AI agents use create_batch_payout 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 initiates outbound financial transfers (payouts) to multiple recipients. It directly moves money, making it Financial category. The blast radius is critical because a misuse could disburse funds to unintended recipients or in incorrect amounts at scale, with potential irreversibility once payouts are processed.
From the tool's definition 'Create a batch payout via POST /v1/payments/payouts' — disburses money to multiple recipients with amount { currency, value } fields
Documented attack patterns abuse exactly the kind of access create_batch_payout 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_batch_payout:
{
"version": "1",
"default": "deny",
"tools": {
"create_batch_payout": {
"deny_if": [
{
"conditions": [],
"on_deny": "Requires human approval."
}
]
}
}
}Any call to create_batch_payout is blocked until a human approves it. The rest of the server keeps working.
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Create a batch payout via POST /v1/payments/payouts. sender_batch_header carries metadata; items is an array of payout_item objects each with recipient_type, amount { currency, value }, receiver, and note. Async — poll get_payout to track status. 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_batch_payout: 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_batch_payout 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_batch_payout 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_batch_payout. 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_batch_payout 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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