find_email

THE RISK

Low Risk

Why find_email needs a policy

This tool retrieves email information about individuals from the LeadMagic API. It performs a lookup/query operation with no side effects or data modification. Classification as 'Read' is appropriate.

From the tool's definition Tool name is 'find_email' and description states 'Find verified email address based on a person' - retrieves contact information without modifying data.

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

POLICY

How to control find_email

PolicyLayer is an MCP gateway — it sits between your AI agents and LeadMagic MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for find_email:

policy.json

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

find_email is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

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

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More LeadMagic MCP Server tools

Read email_to_profile Find B2B profile URL using work email address. Reverse lookup functionality to discover pr Read find_employees Find employees of a specific company. Discover team members, their roles, and contact info Read find_jobs Search for job postings based on various criteria including company, title, location, and Read find_mobile Find mobile phone numbers using profile URL, work email, or personal email. Discover direc Read find_personal_email Find personal email addresses from B2B profile URLs. Useful for reaching contacts through Read find_role Find specific roles/positions within a company. Targeted search for particular job titles Read get_b2b_ad_details Get detailed information about a specific B2B ad including campaign information, creative Read get_company_funding Get comprehensive funding information, financials, competitors, and company insights. Esse

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about find_email

What does the find_email tool do? +

Find verified email address based on a person\. It is categorised as a Read tool in the LeadMagic MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on find_email? +

Register the LeadMagic MCP Server MCP server in PolicyLayer and add a rule for find_email: 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 LeadMagic MCP Server. Nothing to install.

What risk level is find_email? +

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

Can I rate-limit find_email? +

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

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

find_email is provided by the LeadMagic MCP Server MCP server (leadmagic/leadmagic-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every LeadMagic MCP Server tool call.

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

CHECK YOUR STACK →