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This guide gets you from zero to a working API call. You’ll need a FacetFlux account on a paid plan (API access is included).

1. Create an API key

Sign in at app.facetflux.com as a tenant admin, go to Settings → API keys, and create a key. Copy it now — it’s shown only once. For a first read-only test, a read-only key is enough. See Authentication for the full details.

2. Read your catalog

Every response is scoped to the tenant your key belongs to. List the first page of products:
If you get a 401, the key is missing or wrong. A 403 read_only_api_key means you tried a write with a read-only key.

3. Pick your path

Run a diagnostic

Upload a catalog file and get a completeness report. The best first look at your data.

Enrich products

Fill missing specs and classify to ETIM / eCl@ss with AI.

Export your catalog

Generate BMEcat, CSV, or channel-specific output.

Hand it to an agent

Connect the MCP server and let an AI agent do the work.
Prefer to click through the endpoints? The API reference has an interactive playground — paste your key once and try any call in the browser.