skills

Integrate Fingerprint device identification into an Angular app — initialize the agent and get the visitor's visitor_id and event_id.

Add Fingerprint to a fullstack Next.js (App Router) app — identify visitors in the browser with the React SDK and verify the event_id server-side with the node SDK in a Route Handler or Server Action.

Integrate the Fingerprint Server API into a Node/Express backend — fetch an event by event_id and read the verified identification and Smart Signals.

Protect the Fingerprint JS Agent (v4) against ad blockers and improve identification accuracy by routing it through a first-party custom subdomain or a proxy integration (Cloudflare, CloudFront, Azure, Nginx) using the v4 `endpoints` option. Use to maximize accuracy after basic identification works, or when requests to the default Fingerprint domain are being blocked.

Integrate the Fingerprint Server API into a Python backend (FastAPI / Django / Flask) — fetch an event by event_id and read the verified identification and Smart Signals.

Integrate Fingerprint device identification into a React (or Preact) app — initialize the agent and get the visitor's visitor_id and event_id.

Set up no-code automatic protection with the Fingerprint Rules Engine — block or allow visitors based on Smart Signals without writing decision code — and consume the rule outcome server-side. Use when the user wants automatic protection, to build their first rule, or to enforce policy without hand-coding signal checks.

Use the full set of Fingerprint Smart Signals (bot, VPN, proxy, tampering, incognito, IP blocklist, velocity, suspect score, location spoofing, and more) from the v4 Server API to make richer server-side trust decisions. Use after the basic identification + verification is in place, when you want detailed insights about a visitor beyond confidence.

Integrate Fingerprint device identification into a Svelte / SvelteKit app — initialize the agent and get the visitor's visitor_id and event_id.

Attach your own metadata (user IDs, account IDs, order IDs) to Fingerprint identification events using tag and linkedId in the v4 JS Agent, then read it back from the Server API and webhooks. Use to join Fingerprint data with your business data for fraud use-cases, tracking logged-in devices, and analytics.

Integrate Fingerprint device identification into a Vue 3 (or Nuxt) app — initialize the agent and get the visitor's visitor_id and event_id.

Guide the user through the full Fingerprint Get Started flow — detect the project's tech stack, install frontend identification, add the server-side API verification step, then walk the remaining protection steps, applying the matching skill for each. Use when the user wants to add Fingerprint to an app, get started with Fingerprint, or set up device identification and fraud protection end to end.

Protect your public Fingerprint API key from unauthorized use by configuring request filtering — allowed origins, header restrictions, and block lists — so the key only works from your own apps even though it's visible in client source. Use when securing the public key, preventing key abuse, or setting up allow/block lists.