Interswitch MCP Policy -- 74 Tools

// TOOL MAP

Read (57) Write / Execute (10) Destructive / Financial (7)

// WHAT CAN GO WRONG

✕

Financial operations (isw_bulk_transfer, isw_create_payment_link, isw_initiate_refund) can move real money. An agent caught in a loop could drain accounts before anyone notices.

✕

Write operations (isw_change_card_pin, isw_complete_credit, isw_create_bulk_paycodes) modify state. Without rate limits, an agent can make hundreds of changes in seconds — faster than any human can review or revert.

✕

Execute tools (isw_credit_inquiry, isw_fintech_build_response, isw_initialize_payment) trigger processes with side effects. Builds, notifications, workflows — all fired without throttling.

// RECOMMENDED RULES

Block financial tools by default

isw_bulk_transfer:
  rules:
    - action: deny

Financial tools should be explicitly enabled per use case, not open by default.

Rate limit write operations

isw_change_card_pin:
  rules:
    - rate_limit: 30/hour

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

isw_agency_banking_cashout:
  rules:
    - rate_limit: 60/minute

Controls API costs and prevents retry loops from exhausting upstream rate limits.

// ALL 74 INTERSWITCH TOOLS

FINANCIAL 7 tools

Financial isw_bulk_transfer Financial isw_create_payment_link Financial isw_initiate_refund Financial isw_pay_bill Financial isw_pay_vas_bill Financial isw_requery_transfer Financial isw_single_transfer

EXECUTE 3 tools

Execute isw_credit_inquiry Execute isw_fintech_build_response Execute isw_initialize_payment

WRITE 7 tools

Write isw_change_card_pin Write isw_complete_credit Write isw_create_bulk_paycodes Write isw_create_card Write isw_create_paycode Write isw_reissue_card_pin Write isw_resolve_bank_account

READ 57 tools

Read isw_agency_banking_cashout Read isw_agency_cashout_xml Read isw_agency_get_token Read isw_agency_requery_xml Read isw_airtime_recharge Read isw_block_card Read isw_block_prepaid_card Read isw_bulk_card_production Read isw_check_debit_balance Read isw_check_prepaid_balance Read isw_confirm_debit_sufficient Read isw_confirm_prepaid_sufficient Read isw_deactivate_paycode Read isw_fetch_cards_by_account Read isw_fetch_cards_by_issuer Read isw_fetch_customer_card_details Read isw_fetch_data_prep_request Read isw_fetch_prepared_cards Read isw_fetch_request_logs Read isw_fetch_single_card_by_pan Read isw_fintech_compute_mac Read isw_fintech_validate_debit_lien_payload Read isw_fintech_validate_debit_payload Read isw_fintech_validate_enquiry_payload Read isw_fintech_validate_place_lien_payload Read isw_fintech_validate_reversal_payload Read isw_get_airtime_epins Read isw_get_bank_codes Read isw_get_biller_details Read isw_get_biller_packages Read isw_get_billers Read isw_get_billers_by_category Read isw_get_customer_demographics Read isw_get_financial_habits Read isw_get_financial_history Read isw_get_financial_history_average Read isw_get_paycode_status Read isw_get_payout_channels Read isw_get_pin Read isw_get_receiving_institutions Read isw_get_refund_status Read isw_get_transaction_by_reference Read isw_get_transaction_details Read isw_get_transaction_status Read isw_initiate_card_data_prep Read isw_link_card_to_account Read isw_request_nano_loan Read isw_retry_card_creation Read isw_salary_lending Read isw_transaction_search_bulk_search Read isw_transaction_search_quick_search Read isw_transaction_search_reference_search Read isw_unblock_card Read isw_unblock_prepaid_card Read isw_validate_card Read isw_validate_customer Read isw_value_financing

// FAQ

Can an AI agent move money through the Interswitch MCP server? +

Yes. The Interswitch server exposes 7 financial tools including isw_bulk_transfer, isw_create_payment_link, isw_initiate_refund. Without a policy, an autonomous agent can call these with no spend caps, no rate limits, and no approval flow. Intercept lets you block financial tools by default or set per-tool rate limits.

How do I prevent bulk modifications through Interswitch? +

The Interswitch server has 7 write tools including isw_change_card_pin, isw_complete_credit, isw_create_bulk_paycodes. Set rate limits in your policy file -- for example, rate_limit: 10/hour prevents an agent from making more than 10 modifications per hour. Intercept enforces this at the transport layer.

How many tools does the Interswitch MCP server expose? +

74 tools across 4 categories: Execute, Financial, Read, Write. 57 are read-only. 17 can modify, create, or delete data.

How do I add Intercept to my Interswitch setup? +

One line change. Instead of running the Interswitch server directly, prefix it with Intercept: intercept -c io-github-dairus01-interswitch-mcp-server.yaml -- npx -y @interswitch-mcp-server. Download a pre-built policy from policylayer.com/policies/io-github-dairus01-interswitch-mcp-server and adjust the limits to match your use case.

// RELATED SERVERS

Other MCP servers with similar tools.

Starter policies available for each. Same risk classification, same one-command setup.

Interswitch

Other MCP servers with similar tools.

Let agents act without letting them run wild.