# Kleis > Kleis is a WordPress plugin that connects Planning Center to church websites. It synchronizes sermon content from Planning Center Publishing into native WordPress posts and displays current Planning Center Calendar events with native WordPress blocks. Kleis is built for churches, church communications teams, WordPress developers, and church website designers. It uses a secure Planning Center OAuth connection and works with WordPress blocks, templates, Query Loops, and theme styles. Planning Center, Church Center, and WordPress are separate third-party products; Kleis connects them but does not replace them. ## Product - [Kleis homepage](https://getkleis.com/): Product overview, features, workflow, audiences, and current pricing. - [Product facts](https://getkleis.com/product/): Pricing, requirements, supported products, security model, behavior, and limitations. - [Sermon sync](https://getkleis.com/sermons/): Planning Center Publishing episodes as native WordPress content. - [Event calendars](https://getkleis.com/events/): Planning Center Calendar data displayed with WordPress blocks. - [Pricing](https://getkleis.com/pricing/): $15 monthly or $150 annual access for one active WordPress site. - [Compare approaches](https://getkleis.com/compare/): Factual comparison with manual entry, embeds, and custom API development. - [Use cases](https://getkleis.com/use-cases/): Workflows for church communications, web design, ministry staff, and WordPress development. - [Changelog](https://getkleis.com/changelog/): Public release notes and product improvements. ## Product facts - Price: $15 USD per month or $150 USD per year for one active WordPress site. Annual billing saves $30 compared with twelve monthly payments. - Requirements: WordPress 6.0 or newer, PHP 8.0 or newer, an active Kleis subscription, and authorized Planning Center access. - Supported products: Planning Center Publishing for sermons and Planning Center Calendar for events. Kleis does not claim to support every Planning Center product or replace Church Center. - Security: Planning Center OAuth tokens are encrypted with AES-GCM outside WordPress. API proxying is limited to supported Publishing and Calendar read paths. - Limitations: no separate staging activation, Calendar events are not WordPress posts, every page builder is not guaranteed, and ongoing services require an active subscription. ## Documentation - [Kleis Documentation](https://getkleis.com/docs/): Install Kleis, connect Planning Center, and publish sermons and events in WordPress. - [Complete documentation in one file](https://getkleis.com/llms-full.txt): Full text of the public Kleis documentation, generated from the current documentation source. - Every HTML page supports HTTP content negotiation. Send `Accept: text/markdown` to the page URL to receive the page as Markdown with `Content-Type: text/markdown`; browsers continue to receive HTML. - HTML and Markdown responses include RFC 8288 `Link` headers advertising this site guide, the complete documentation file, and the Kleis service documentation. ## Getting Started - [Activate Your License](https://getkleis.com/docs/start/activate-license/): Validate your Kleis license and understand the one-site activation limit. - [Before You Begin](https://getkleis.com/docs/start/before-you-begin/): Check WordPress, Planning Center, access, and backup requirements before installing Kleis. - [Connect Planning Center](https://getkleis.com/docs/start/connect-planning-center/): Authorize Kleis to read your organization's Planning Center content. - [Enable Automatic Sermon Updates](https://getkleis.com/docs/start/webhooks/): Configure Planning Center Publishing webhooks so episode changes reach WordPress automatically. - [Install Kleis](https://getkleis.com/docs/start/install/): Download the Kleis ZIP file and install the plugin in WordPress. - [Publish Your First Kleis Page](https://getkleis.com/docs/start/first-page/): Choose a first sermon or events page and confirm that connected content appears publicly. - [Run Your First Sync](https://getkleis.com/docs/start/first-sync/): Import Planning Center Publishing episodes and verify the synchronized WordPress content. ## Sermons - [Build a Sermon Archive](https://getkleis.com/docs/sermons/archive/): Display synchronized Episode posts in a WordPress Query Loop with artwork, details, and pagination. - [Build Channel and Series Navigation](https://getkleis.com/docs/sermons/channels-and-series/): Link visitors to Kleis channel, series, speaker, and episode collections. - [Design the Episode Template](https://getkleis.com/docs/sermons/episode-template/): Create the shared block-theme layout for individual sermon episode pages. - [How Sermon Content Works](https://getkleis.com/docs/sermons/how-sermons-work/): Understand the WordPress posts, taxonomies, files, and links created by a Kleis sermon sync. - [Sermon Block Reference](https://getkleis.com/docs/sermons/block-reference/): Reference for the Kleis Sermon Audio, Episode Resources, and Open in Church Center blocks. ## Events - [Add a Planning Center Calendar](https://getkleis.com/docs/events/calendar/): Display current Planning Center events in an interactive WordPress calendar. - [Build an Upcoming Events List](https://getkleis.com/docs/events/events-list/): Repeat a custom block layout for upcoming Planning Center event days. - [Design Event Cards](https://getkleis.com/docs/events/event-cards/): Compose a responsive Events Template layout with images, dates, details, and registration links. - [Event Block Reference](https://getkleis.com/docs/events/block-reference/): Controls, context, and output for every Kleis event block. - [Handle Multi-Event Days](https://getkleis.com/docs/events/multi-event-days/): Choose the right Kleis blocks for multiple events, recurring events, and multi-day schedules. ## Maintenance and Troubleshooting - [Event Troubleshooting](https://getkleis.com/docs/troubleshooting/events/): Resolve missing events, incorrect times, empty filters, absent links or images, and theme conflicts. - [Frequently Asked Questions](https://getkleis.com/docs/faq/): Answers about Church Center, synchronized data, editing, themes, licenses, staging, and support. - [Sync and Connection Troubleshooting](https://getkleis.com/docs/troubleshooting/sync-and-connection/): Resolve Kleis license, Planning Center connection, sermon sync, webhook, audio, and artwork problems. - [Updates, Subscription, and License Management](https://getkleis.com/docs/maintain/updates-and-subscription/): Keep Kleis current, manage billing, and move or deactivate a site license. ## Support - [Kleis support](https://getkleis.com/support/): Contact support after checking the troubleshooting documentation; never send a license key or webhook secret. - [Frequently Asked Questions](https://getkleis.com/docs/faq/): Answers about synchronized data, editing, themes, licenses, staging, Church Center, and support. ## Optional - [Privacy policy](https://getkleis.com/privacy-policy/): How Kleis handles website, purchase, license, OAuth, and support data. - [Terms of service](https://getkleis.com/terms-of-service/): Terms governing use of Kleis. - [XML sitemap](https://getkleis.com/sitemap-index.xml): Complete index of public website URLs.