> For the complete documentation index, see [llms.txt](https://docs.paywithflash.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.paywithflash.com/api-documentation/readme.md).

# Welcome

Welcome to the Flash API documentation! Flash is a Bitcoin Lightning payments gateway enabling seamless subscription management, paywalls, and micropayments. This documentation will guide you through our public APIs, offering easy access to key functionalities to integrate with Flash. The API is designed with simplicity in mind to help developers quickly onboard and manage their integrations.

### Jump right in

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-cover data-type="files"></th><th data-hidden></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Authentication</strong></td><td>Get your credentials</td><td><a href="/files/UHF7zjwcq36zmrwja3ub">/files/UHF7zjwcq36zmrwja3ub</a></td><td></td><td><a href="/pages/CyH2xJQs9yWJ1S8BYNav">/pages/CyH2xJQs9yWJ1S8BYNav</a></td></tr><tr><td><strong>Subscriptions</strong></td><td>Setup your subscriptions</td><td><a href="/files/vxs1ER5I8VkIA0IaOqfo">/files/vxs1ER5I8VkIA0IaOqfo</a></td><td></td><td><a href="/pages/MWLokzqh6c2EW7NdljRz">/pages/MWLokzqh6c2EW7NdljRz</a></td></tr></tbody></table>