cancel_scheduled_payment

Cancel a pending scheduled payment before it executes.

SERVERTempo SOURCEarome3/tempo-mcp

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/arome3-tempo-mcp/cancel-scheduled-payment.md

WHAT IT DOES

What cancel_scheduled_payment does on Tempo

AI agents use cancel_scheduled_payment to commit financial operations through Tempo, usually the final step of a payment, billing, or trading workflow. A call moves real money.

RISK

Why cancel_scheduled_payment is rated Critical

Cancelling a scheduled payment is a financial operation that directly affects payment workflows and financial obligations. While it prevents a payment from executing (rather than moving money), it has direct financial consequences by stopping committed payment flows.

From the tool's definition cancel a pending scheduled payment before it executes

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs cancel_scheduled_payment safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Tempo, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For cancel_scheduled_payment, this is the rule to start with:

cancel_scheduled_payment Approval-gated

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

View as policy code

policy.json

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

GATE THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Tempo, apply this rule, and every cancel_scheduled_payment call is checked against it from then on.

FAQ

Questions about cancel_scheduled_payment

What does the cancel_scheduled_payment tool do? +

Cancel a pending scheduled payment before it executes. It is categorised as a Financial tool in the Tempo MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on cancel_scheduled_payment? +

Register the Tempo MCP server in PolicyLayer and add a rule for cancel_scheduled_payment: 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 Tempo. Nothing to install.

What risk level is cancel_scheduled_payment? +

cancel_scheduled_payment 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 cancel_scheduled_payment? +

Yes. Add a rate_limit block to the cancel_scheduled_payment 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 cancel_scheduled_payment completely? +

Set action: deny in the PolicyLayer policy for cancel_scheduled_payment. 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 cancel_scheduled_payment? +

cancel_scheduled_payment is provided by the Tempo MCP server (arome3/tempo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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Guides

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