isw_link_card_to_account

Link a Card 360 card to an account. Requires confirm: true.

SERVERInterswitch SOURCEinterswitch-mcp-server

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-dairus01-interswitch-mcp-server/isw-link-card-to-account.md

WHAT IT DOES

What isw_link_card_to_account does on Interswitch

AI agents use isw_link_card_to_account to create or update resources in Interswitch, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Interswitch environment.

RISK

Why isw_link_card_to_account is rated Medium

This tool creates a persistent association between a payment card and an account, which is a write operation that modifies financial account configuration. While not directly moving money, linking a card to an account enables future financial transactions and could be misused to redirect funds or payments. The 'Requires confirm: true' guard indicates the sensitivity of this action.

From the tool's definition Link a Card 360 card to an account. Requires confirm: true.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs isw_link_card_to_account safely

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

isw_link_card_to_account Rate-limited

isw_link_card_to_account stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "isw_link_card_to_account": {
      "limits": [
        {
          "counter": "isw_link_card_to_account_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about isw_link_card_to_account

What does the isw_link_card_to_account tool do? +

Link a Card 360 card to an account. Requires confirm: true. It is categorised as a Write tool in the Interswitch MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on isw_link_card_to_account? +

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

What risk level is isw_link_card_to_account? +

isw_link_card_to_account is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit isw_link_card_to_account? +

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

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

isw_link_card_to_account is provided by the Interswitch MCP server (interswitch-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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