Circle
Circle offers iFrame embedding and JavaScript widgets for quickly displaying your community within Webflow pages.
How to integrate Circle with Webflow
Circle communities add member forums, discussion threads, and event management to Webflow sites. Add Circle to course platforms, membership sites, or product documentation to give users a place to interact with each other and your team.
Integrate Circle with Webflow through iframe embeds and JavaScript widgets for quick setup, or use Circle's APIs for custom member experiences and automated workflows. Zapier connects Circle triggers to Webflow actions without writing code.
Native features, direct embeds and widgets
Circle provides iframe and JavaScript widget embedding options for displaying community content on Webflow sites. These methods let you display full communities, individual spaces, or specific discussion topics. The iframe embedding documentation details setup requirements and configuration options.
Add the embed code to Webflow custom code sections or Code Embed elements within your page layout. The implementation accepts standard HTML attributes for width, height, and display options.
Circle embeds support these display options:
- Full community iframe: Display your entire Circle community with
<iframe src="https://YOUR_COMMUNITY_DOMAIN.circle.so">in custom code elements - Space widget: Show individual community spaces using
<div class="circle-space-widget" data-space-id="SPACE_ID">with the Circle widgets JavaScript library - Topic widget: Embed specific discussion threads with
<div class="circle-topic-widget" data-topic-id="TOPIC_ID">for focused content display
Mobile apps show a "View in App" link instead of inline content. Private communities require Single Sign-On (SSO) integration for member authentication. Shadow DOM isolation limits CSS customization options. Chrome and Safari may block third-party cookies for cross-domain implementations.
Build with Webflow and Circle APIs
Circle provides three distinct APIs for integrating community features into Webflow sites without displaying the full Circle interface. The Circle developer platform includes a Headless API, an Admin API v2, and a Data API. These APIs enable custom member experiences, automated workflows, and data synchronization between Circle and Webflow CMS collections.
The Headless API pulls discussion threads, member feeds, and event listings into your Webflow site layout. The Admin API v2 handles member management, content moderation, and administrative automation. The Data API provides community activity data for integration with analytics platforms or custom dashboards. The Data API is only available on Circle's Plus Platform plan.
Access the official Circle Developers API documentation for endpoint specifications and authentication requirements.
API integration enables these use cases:
- Member synchronization: Use Admin API v2 to add Webflow form submitters as Circle members automatically
- Custom member directories: Pull member profiles through the Headless API and display them in Webflow CMS collections
- Discussion widgets: Fetch recent community discussions via Headless API and render them with custom Webflow layouts
- Event calendars: Query upcoming Circle events through the Headless API and display in Webflow event collection pages
- Analytics integration: Connect Data API to external analytics platforms for community engagement tracking (Plus Platform plan only)
Authentication requires API keys obtained from your Circle community settings. Cross-origin resource sharing (CORS) configuration may be needed for client-side API calls from Webflow sites.
Automating workflows with Zapier
Zapier's Circle integration provides pre-built automation between Circle communities and Webflow sites without writing API integration code. The platform offers 40+ Circle triggers and actions that connect directly to Webflow's CMS and form systems.
Common automation patterns include creating Circle members from Webflow form submissions, adding new Circle posts as Webflow CMS items, and syncing member data between platforms.
Configure custom profile fields in Circle before setting up Zapier automations to ensure proper data mapping. Webflow CMS collections need corresponding fields to receive synchronized data from Circle.
What you can build
Integrating Circle with Webflow lets you add member communities, discussion forums, and event management to marketing sites, course platforms, membership portals, and product documentation hubs.
- Community-powered course platforms: Build a Webflow course landing page with embedded Circle spaces for student discussions, Q&A forums, and cohort-specific channels where learners interact with instructors and peers
- Membership sites with forum access: Create a Webflow membership site where members log in once and access both your content pages and embedded Circle community forums without separate authentication
- Event-driven communities: Design Webflow event landing pages that pull upcoming Circle events through the API and display registration details, while embedded widgets show event discussion threads
- Product community hubs: Develop a Webflow product site with embedded Circle spaces for user discussions, feature requests, and support forums integrated directly into documentation pages
Frequently asked questions
No, Circle does not offer a native Webflow marketplace app. Integration requires iframe embedding, JavaScript widgets, or API implementation. The iframe embedding documentation provides code snippets for displaying Circle communities on Webflow sites through custom code elements.
Yes, through Zapier's Circle-Webflow integration which provides automated workflows for syncing member data. Configure Circle's custom profile fields to capture member information, then create Zapier automations that add new Circle members as items in Webflow CMS collections.
Alternatively, use Circle's Admin API v2 to build custom synchronization scripts that query member data and post it to Webflow's CMS API endpoints.
Private Circle communities require Single Sign-On (SSO) configuration when embedded on Webflow sites. Without SSO, users see login prompts within the iframe or widget that redirect them away from your Webflow site. The iframe integration documentation notes authentication limitations for private communities.
Implement SSO through Circle's authentication settings to enable users to access embedded private content after logging into your Webflow site through your existing authentication system.
Limited customization is possible. Circle embeds use Shadow DOM isolation which restricts external CSS from affecting the community interface appearance. You can control iframe dimensions and container styling, but internal Circle interface elements maintain their default appearance.
For complete design control, use Circle's Headless API to fetch community data and render it with custom HTML and CSS in your Webflow layout. This approach requires API integration work but provides full styling flexibility.
Description
Circle.so is a community platform that provides forums, member profiles, discussion threads, event hosting, and course delivery.
This integration page is provided for informational and convenience purposes only.
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