call

Call a specific remote tool with provided parameters.

SERVERQverisai SOURCEqverisai/qveris-agent-toolkit

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade C, identity unverified Pull the record →

This record as markdown: /tools/qverisai-qveris-agent-toolkit/call.md

WHAT IT DOES

What call does on Qverisai

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

RISK

Why call is rated Critical

This tool executes arbitrary remote tools on a server explicitly designed for financial capabilities. Since the server's primary purpose is routing financial operations (payments, trades, subscriptions, etc.), calling any remote tool could trigger financial transactions. The most severe applicable category is Financial, given the server context.

From the tool's definition 'Call a specific remote tool with provided parameters' on a server described as providing '10,000+ real-world financial capabilities'

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs call safely

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

call Approval-gated

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

FAQ

Questions about call

What does the call tool do? +

Call a specific remote tool with provided parameters. It is categorised as a Financial tool in the Qverisai MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on call? +

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

What risk level is call? +

call 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 call? +

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

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

call is provided by the Qverisai MCP server (qverisai/qveris-agent-toolkit). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Qverisai, and thousands of servers like it.

This server

All 9 Qverisai tools → Critical-risk tools on this server →

Across the catalogue

x402_call on X402 Buyer →fundos_create_capital_call on Fundos → All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern MCP payment tools →Human-in-the-loop →Tool call approval →