specification: API Evangelist Vocabulary
specificationVersion: '0.1'
provider: Interswitch
providerId: interswitch
created: '2026-05-24'
modified: '2026-05-24'
description: Operational, capability, and domain vocabulary for the Interswitch developer platform.
tags:
  - Payments
  - Africa
  - Nigeria
  - Fintech
concepts:
  - id: verve
    name: Verve
    description: Interswitch-owned domestic EMV chip-and-PIN card scheme accepted across Nigerian and select African ATMs, POS, and online merchants.
  - id: quickteller
    name: Quickteller
    description: Interswitch's consumer and business payments brand spanning bills, airtime, transfers, and merchant payments.
  - id: quickteller-business
    name: Quickteller Business
    description: Merchant dashboard for collections, payment links, invoices, refunds, webhooks, and settlement.
  - id: webpay
    name: Webpay / Web Checkout
    description: Hosted payment page (inline JavaScript or Web Redirect) for accepting card payments online.
  - id: paycode
    name: Paycode (Pay with Mobile)
    description: One-time cardless token used to withdraw cash at ATMs or pay at merchants without a card.
  - id: smartfuel
    name: Smartfuel
    description: Interswitch's energy-sector solution for fuel-station automation.
  - id: card-360
    name: Card 360
    description: Issuer-processor APIs covering card lifecycle (create, PIN, block, unblock, balance, link, validate).
  - id: nip
    name: NIBSS Instant Payment (NIP)
    description: The Nigerian inter-bank instant transfer rail Interswitch's transfer APIs sit on top of.
  - id: nuban
    name: NUBAN
    description: 10-digit Nigeria Uniform Bank Account Number addressed by the Transfers and Name Inquiry APIs.
  - id: passport
    name: Passport
    description: Interswitch's OAuth 2.0 token service issuing bearer tokens for the developer APIs.
  - id: interswitch-auth
    name: InterswitchAuth
    description: Legacy signed-header authentication scheme using Authorization, Timestamp, Nonce, Signature (SHA1), and SignatureMethod headers.
services:
  - id: web-checkout
    name: Web Checkout
  - id: payment-gateway
    name: Payment Gateway
  - id: transfers
    name: Transfers
  - id: bills-payment
    name: Bills Payment
  - id: airtime-recharge
    name: Airtime Recharge
  - id: paycode
    name: Paycode
  - id: refunds
    name: Refunds
  - id: recurring-payments
    name: Recurring Payments
  - id: card-360
    name: Card 360
  - id: lending
    name: Lending Service
  - id: customer-insights
    name: Customer Insights
  - id: transaction-search
    name: Transaction Search
tools:
  - id: quickteller-business-dashboard
    name: Quickteller Business Dashboard
  - id: developer-console
    name: Interswitch Developer Console
  - id: api-marketplace
    name: Interswitch API Marketplace
  - id: inline-checkout-js
    name: inline-checkout.js
standards:
  - id: emv
    name: EMV Chip-and-PIN
  - id: pci-dss
    name: PCI DSS
  - id: iso-8583
    name: ISO 8583 (under the switch)
  - id: iso-9564
    name: ISO 9564 PIN Block
  - id: oauth2
    name: OAuth 2.0 (Client Credentials)
  - id: 3ds
    name: 3-D Secure
  - id: hmac-sha512
    name: HMAC-SHA512 (webhook signatures)
  - id: sha1-signature
    name: SHA1 Signature (InterswitchAuth)
  - id: focus
    name: FOCUS 1.3 (FinOps)