# KTAP Cards API documentation sitemap

Every page, as Markdown. Append `.md` to any documentation URL to get the same thing.

- [KTAP Cards API](https://virtual.ktap.io/docs.md) | Section: Getting started | Type: explanation | Summary: Issue virtual Visa cards to your own customers and fund them from a prepaid USD balance.
- [Quickstart](https://virtual.ktap.io/docs/quickstart.md) | Section: Getting started | Type: tutorial | Summary: Issue a card, fund it, show it, pull money back off it, and close it. Seven calls.
- [Essentials](https://virtual.ktap.io/docs/essentials.md) | Section: Getting started | Type: reference | Summary: Authentication, the response envelope, errors, idempotency, paging and rate limits. What every endpoint has in common.
- [Account and balance](https://virtual.ktap.io/docs/api/account.md) | Section: API reference | Type: reference | Summary: Read your account, fund your balance, check your spendable balance and your rates, and set your markup.
- [Cards](https://virtual.ktap.io/docs/api/cards.md) | Section: API reference | Type: reference | Summary: Order a card, fund it, freeze it, close it, and set how 3-D Secure reaches the cardholder.
- [Card details](https://virtual.ktap.io/docs/api/card-data.md) | Section: API reference | Type: reference | Summary: Display a full card number in an iframe without it touching your servers.
- [Ledger](https://virtual.ktap.io/docs/api/ledger.md) | Section: API reference | Type: reference | Summary: Every movement on your balance, and every transaction on a card, with the fees on each.
- [Receiving events](https://virtual.ktap.io/docs/webhooks.md) | Section: Webhooks | Type: how-to | Summary: Register an endpoint, verify the signature on every delivery, and respond in time.
- [Event reference](https://virtual.ktap.io/docs/webhooks/events.md) | Section: Webhooks | Type: reference | Summary: Every event type we send, with its payload and an example.