# Atomic PayLink API

**Canonical:** https://apis.io/apis/atomic-financial/atomic-paylink-api/  
**Provider:** Atomic — https://apis.io/providers/atomic-financial/  
**Base URL:** https://api.atomicfi.com  
**Documentation:** https://docs.atomicfi.com/reference/transact-sdk

Atomic PayLink API is one of 7 APIs that [Atomic](https://apis.io/providers/atomic-financial/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include PayLink, Subscription, Card on File, Bill Pay, and Merchants. The published artifact set on APIs.io includes API documentation and an API reference.

PayLink lets consumers update their card-on-file across merchants and subscription services. It is also the foundation for subscription discovery, bill management, and Atomic's Manage / Switch product line — enabling pause, cancel, reactivate, and card-update flows across thousands of merchants.

## Machine-readable artifacts (2)

- **Documentation** — https://docs.atomicfi.com/reference/transact-sdk
- **APIReference** — https://docs.atomicfi.com/reference/api

## Other Atomic APIs (6)

- [Atomic Deposit API](https://apis.io/apis/atomic-financial/atomic-deposit-api/)
- [Atomic Verify API](https://apis.io/apis/atomic-financial/atomic-verify-api/)
- [Atomic Tax API](https://apis.io/apis/atomic-financial/atomic-tax-api/)
- [Atomic Authentication API](https://apis.io/apis/atomic-financial/atomic-authentication-api/)
- [Atomic Webhooks API](https://apis.io/apis/atomic-financial/atomic-webhooks-api/)
- [Atomic Transact SDK](https://apis.io/apis/atomic-financial/atomic-transact-sdk/)

## Tags

PayLink, Subscription, Card on File, Bill Pay, Merchants

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/atomic-financial/atomic-paylink-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/atomic-financial/.