robot_sign_voucher_tick

Sign a single MPP voucher (48 bytes Borsh) and POST it to pay.sh.

SERVERExecution Market SOURCEhttps://mcp.execution.market/mcp/

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/market-execution-execution-market/robot-sign-voucher-tick.md

WHAT IT DOES

What robot_sign_voucher_tick does on Execution Market

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

RISK

Why robot_sign_voucher_tick is rated Critical

This tool cryptographically signs a payment voucher and submits it to a payment endpoint. Signing and posting an MPP voucher constitutes committing a financial obligation — it authorizes a USDC payment on the Execution Market platform. Given the server context of 'Gasless USDC payments via x402,' a misused or forged voucher could result in unauthorized fund transfers.

From the tool's definition Sign a single MPP voucher (48 bytes Borsh) and POST it to pay.sh

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs robot_sign_voucher_tick safely

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

robot_sign_voucher_tick Approval-gated

Any call to robot_sign_voucher_tick 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": {
    "robot_sign_voucher_tick": {
      "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 Execution Market, apply this rule, and every robot_sign_voucher_tick call is checked against it from then on.

FAQ

Questions about robot_sign_voucher_tick

What does the robot_sign_voucher_tick tool do? +

Sign a single MPP voucher (48 bytes Borsh) and POST it to pay.sh. It is categorised as a Financial tool in the Execution Market MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on robot_sign_voucher_tick? +

Register the Execution Market MCP server in PolicyLayer and add a rule for robot_sign_voucher_tick: 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 Execution Market. Nothing to install.

What risk level is robot_sign_voucher_tick? +

robot_sign_voucher_tick 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 robot_sign_voucher_tick? +

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

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

robot_sign_voucher_tick is provided by the Execution Market MCP server (https://mcp.execution.market/mcp/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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