Fingerprint — Python (Server API)

Integrate the Fingerprint Server API into a Python backend: take the single-use event_id your frontend sends, fetch the event server-side, and read the verified identification and Smart Signals. The server is the source of truth — never trust a visitor_id or a decision sent straight from the client.

Docs: https://docs.fingerprint.com/reference/python-server-sdk · event schema: OpenAPI (https://github.com/fingerprintjs/fingerprint-pro-server-api-openapi) or the Fingerprint MCP event-schema resource.

Package

fingerprint-server-sdk — install the latest version.

Env var

• FINGERPRINT_SECRET_API_KEY — the secret key. Server-side only; never sent to the browser.

Load .env with python-dotenv (load_dotenv()) and read the key via os.environ. Keep the secret key out of any client bundle, logs, or version control.

Steps