# isw_get_bank_codes

List supported bank codes for transfers.

Agent View of the PolicyLayer registry record for `isw_get_bank_codes`. HTML page: https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-get-bank-codes

## Facts

- Tool: `isw_get_bank_codes`
- Server: Interswitch (`interswitch-mcp-server`) — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server.md
- Install: `npx -y interswitch-mcp-server`
- Homepage: https://github.com/Dairus01/Interswitch-mcp-server
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "isw_get_bank_codes",
    "arguments": {}
  }
}
```

## Why isw_get_bank_codes is rated Low

This tool retrieves a static list of bank codes used for transfer operations. It performs a read-only query with no ability to modify, delete, or execute operations. The data returned is informational only and necessary for composing valid transfer requests. No financial transaction occurs, and no destructive or state-changing operation is performed.

From the tool's own definition: "Tool name 'isw_get_bank_codes' and description 'List supported bank codes for transfers' indicate retrieval of reference data with no side effects."

## Use case

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

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Interswitch:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "isw_get_bank_codes": {}
  }
}
```

## Other tools on Interswitch (73)

- `isw_block_card` — Destructive — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-block-card.md
- `isw_deactivate_paycode` — Destructive — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-deactivate-paycode.md
- `isw_agency_requery_xml` — Execute — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-agency-requery-xml.md
- `isw_fintech_build_response` — Execute — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-fintech-build-response.md
- `isw_fintech_compute_mac` — Execute — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-fintech-compute-mac.md
- `isw_agency_banking_cashout` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-agency-banking-cashout.md
- `isw_agency_cashout_xml` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-agency-cashout-xml.md
- `isw_airtime_recharge` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-airtime-recharge.md
- `isw_bulk_card_production` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-bulk-card-production.md
- `isw_bulk_transfer` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-bulk-transfer.md
- `isw_complete_credit` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-complete-credit.md
- `isw_create_bulk_paycodes` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-create-bulk-paycodes.md
- `isw_create_card` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-create-card.md
- `isw_create_paycode` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-create-paycode.md
- `isw_create_payment_link` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-create-payment-link.md
- `isw_get_airtime_epins` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-get-airtime-epins.md
- `isw_initialize_payment` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-initialize-payment.md
- `isw_initiate_refund` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-initiate-refund.md
- `isw_pay_bill` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-pay-bill.md
- `isw_pay_vas_bill` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-pay-vas-bill.md
- `isw_request_nano_loan` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-request-nano-loan.md
- `isw_salary_lending` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-salary-lending.md
- `isw_single_transfer` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-single-transfer.md
- `isw_value_financing` — Financial — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-value-financing.md
- `isw_agency_get_token` — Read — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-agency-get-token.md
- `isw_block_prepaid_card` — Read — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-block-prepaid-card.md
- `isw_check_debit_balance` — Read — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-check-debit-balance.md
- `isw_check_prepaid_balance` — Read — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-check-prepaid-balance.md
- `isw_confirm_debit_sufficient` — Read — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-confirm-debit-sufficient.md
- `isw_confirm_prepaid_sufficient` — Read — https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server/isw-confirm-prepaid-sufficient.md
- …and 43 more: https://policylayer.com/tools/io-github-dairus01-interswitch-mcp-server.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-dairus01-interswitch-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-dairus01-interswitch-mcp-server