verify_customer

Trigger the KYC verification check for a customer. Sandbox auto-progresses business customers through the hosted KYC flow once documents are uploaded. Idempotent — returns 422

ServerMcp Ap2
CategoryRead

How to control verify_customer ↓

WHAT IT DOES

What verify_customer does on Mcp Ap2

AI agents call verify_customer to retrieve information from Mcp Ap2 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

THE RISK

Low Risk

Why verify_customer needs a policy

This tool initiates a KYC (Know Your Customer) verification process but does not directly write, modify, delete, or move funds. It reads/validates customer data against verification requirements and returns status (including error 422).

From the tool's definition Trigger the KYC verification check for a customer. Sandbox auto-progresses business customers through the hosted KYC flow once documents are uploaded. Idempotent — returns 422

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

POLICY

How to control verify_customer

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 verify_customer:

policy.json

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

verify_customer 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 Mcp Ap2 — 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 →

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EXPLORE

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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 verify_customer

What does the verify_customer tool do? +

Trigger the KYC verification check for a customer. Sandbox auto-progresses business customers through the hosted KYC flow once documents are uploaded. Idempotent — returns 422. It is categorised as a Read tool in the Mcp Ap2 MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on verify_customer? +

Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for verify_customer: 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.

What risk level is verify_customer? +

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

Can I rate-limit verify_customer? +

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

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

verify_customer 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.

Enforce policy on every Mcp Ap2 tool call.

Start from Mcp Ap2, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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