Derapi Documentation
Build DER software with clean data.
REST API, JSON responses, Bearer token auth. SDKs for Python, Node.js, and Go. Quickstart to first live API call in under 5 minutes.
Get started in 5 minutes
Create a free account, get your API key, and make your first request to the Derapi REST API. No credit card required.
1
Create an account
Sign up for a free Sandbox account. Get your API key instantly — no approval process, no waiting.
Create account →2
Make your first request
Follow the quickstart guide to make your first API call — query interconnect data for a ZIP code in under 5 minutes.
Read quickstart →3
Explore the full API
Browse all endpoints, parameters, and response schemas in the complete API reference documentation.
View API reference →Popular endpoints
GET
/v1/ders/interconnect
Interconnect queue by ZIP
GET
/v1/solar/irradiance
GHI/DNI irradiance + forecast
GET
/v1/permits/ahj
AHJ permit requirements
GET
/v1/grid/congestion
Real-time grid congestion