em_calculate_fee

Calculate the fee breakdown for a potential task.

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

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/market-execution-execution-market/em-calculate-fee.md

WHAT IT DOES

What em_calculate_fee does on Execution Market

AI agents call em_calculate_fee to retrieve information from Execution Market without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why em_calculate_fee is rated Low

This tool performs a calculation and returns fee breakdown data. It does not execute transactions, move funds, create obligations, modify data, or trigger external operations. It is a query/computation utility that informs decision-making but has no side effects.

From the tool's definition Tool name 'em_calculate_fee' and description 'Calculate the fee breakdown for a potential task' indicate a read-only operation that computes and returns fee information without modifying state, executing operations, or committing financial transactions.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs em_calculate_fee 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 em_calculate_fee, this is the rule to start with:

em_calculate_fee Allowed

em_calculate_fee is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "em_calculate_fee": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about em_calculate_fee

What does the em_calculate_fee tool do? +

Calculate the fee breakdown for a potential task. It is categorised as a Read tool in the Execution Market MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on em_calculate_fee? +

Register the Execution Market MCP server in PolicyLayer and add a rule for em_calculate_fee: 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 em_calculate_fee? +

em_calculate_fee is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit em_calculate_fee? +

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

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

em_calculate_fee 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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