Enerdex API

Autocomplete for German grid connection applications (FNN forms)

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API Versions

v1 Current
Heat pumps, PV systems, battery storage, EV chargers, air conditioners
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Authentication

All API requests require an API key passed via the X-API-Key header.

Rate Limiting

All API requests are subject to rate limiting based on your API key. The default limit is 100 requests per minute.

Every response includes rate limit headers:

  • X-RateLimit-Limit – Maximum requests per minute
  • X-RateLimit-Remaining – Requests remaining in current window
  • X-RateLimit-Reset – Unix timestamp when the window resets

When rate limited, you'll receive a 429 response with a Retry-After header.