How to add Crisp live chat to a Webflow Cloud app the right way

Webflow Cloud applications run on Cloudflare Workers, requiring Crisp live chat to be split between a browser-only widget and edge-compatible server-side identity verification. The widget is installed with the Crisp Web SDK, initialized in a Next.js Client Component through `useEffect`, and mounted in the root layout so it remains available across navigation; its public Website ID must be exposed through a `NEXT_PUBLIC_` environment variable. Signed-in users can be personalized with their email, name, plan, custom session data, and events, while verified identity requires a paid Crisp plan and an HMAC-SHA256 signature generated by a server-side Route Handler using the Web Crypto API and a protected secret key. Because Webflow Cloud apps may run under a base path, client requests to the signing endpoint should account for that path. Common failures include loading Crisp during server rendering, missing public environment-variable prefixes, mismatched email signatures, and reliance on Node.js cryptography instead of edge-native Web Crypto. Once configured, the widget can be opened, shown, or hidden through application controls, and the integration can later expand to Crisp’s server-side APIs for automated messaging, contact management, and event-driven support workflows.

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