# Chron

> Card issuing in 6 lines of code

## Docs

- [Activate a Card](https://docs.chronhq.com/api-reference/activate-a-card.md): Activates a digital gift card that is currently in the WAITING_ACTIVATION state, transitioning it to ACTIVE.
- [Block a Card](https://docs.chronhq.com/api-reference/block-a-card.md): Blocks a digital gift card (setting status to BLOCKED). This operation is allowed only if the card is in ACTIVE or WAITING_ACTIVATION state.
- [Cancel a Card](https://docs.chronhq.com/api-reference/cancel-a-card.md): Cancels a digital gift card, marking it as CANCELLED, unloading remaining funds, and recording cancellation details.
- [Create a Card](https://docs.chronhq.com/api-reference/create-a-card.md): Creates a new digital gift card and loads the initial funds. A unique `clientReference` must be provided to prevent duplicate card creation. If the same clientReference is submitted a 409 Conflict error is returned.
- [Get a Paginated List of Cards](https://docs.chronhq.com/api-reference/get-a-paginated-list-of-cards.md): Retrieves a paginated list of digital gift cards with optional filtering on status, createdDate, expiryDate, activationDate, updatedDate, and metadata. The metadata filtering supports flat JSON objects (top-level keys only).
- [Get an Existing Card](https://docs.chronhq.com/api-reference/get-an-existing-card.md): Retrieves the full details of a digital gift card by its unique identifier.
- [Provision Card to Apple](https://docs.chronhq.com/api-reference/provision-card-to-apple.md): Provisions a card for Apple Wallet by passing required client device and wallet parameters.
- [Provision Card to Google](https://docs.chronhq.com/api-reference/provision-card-to-google.md): Provisions a card for Google Pay by passing required client device and wallet parameters.
- [Reissue or Replace a Card](https://docs.chronhq.com/api-reference/reissue-or-replace-a-card.md): Generates a new digital gift card to replace an existing one. Unloads funds from the original and adds them to the newly created card.
- [Unblock a Card](https://docs.chronhq.com/api-reference/unblock-a-card.md): Unblocks a digital gift card, transitioning it from BLOCKED to ACTIVE. This is only applicable if the card is currently BLOCKED.
- [Changelog](https://docs.chronhq.com/changelog.md): Product updates and announcements
- [Introduction](https://docs.chronhq.com/introduction.md): Welcome to the new home for your documentation

## OpenAPI Specs

- [openapi.documented](https://app.stainless.com/api/spec/documented/chron/openapi.documented.yml)
- [card-service](https://docs.chronhq.com/card-service.yaml)
- [chron-api](https://docs.chronhq.com/chron-api.yaml)