Developer API

Build with Alpenglow's sunrise and sunset data

I'm exploring a developer API that exposes the sunrise and sunset forecasts behind Alpenglow. If you're building something that could use it, I'd love to hear from you.

Indie-built. Alpenglow is built by one indie developer, so the API will start small, stay focused, and be shaped directly with the first developers who use it.

Interested? Join the list

Tell me a bit about what you're building, where the API would fit in, and how you'd plan to use it. This is just an interest list for now, so there are no pricing details or formal terms yet.

A focused API for people who care about sunrise and sunset

Alpenglow's forecasts are built for photographers, travelers, hikers, and anyone planning around sunrise and sunset. The goal is a small, dependable API that developers can actually build on, not a firehose of generic weather data.

Who this is a good fit for

If you're building an app, widget, integration, or tool that needs trustworthy sunrise and sunset data, and you'd like to help shape the API, I'd love to hear from you.

Best for

Developers and small teams working on something real — indie apps, side projects, internal tools, or thoughtful integrations.

Not required

You don't need to be a large company. Interesting use cases and clear plans matter more than scale for an early API.

Good fits for the API

Mobile and desktop apps that help people plan around sunrise, sunset, and outdoor timing.

Widgets, automations, and smart home integrations that need reliable sunrise and sunset data.

Travel, hiking, and photography tools that want richer sunrise and sunset forecasts.

Research, education, or creative projects exploring sunrise, sunset, and the weather around them.

What to expect

An early-access program for a small group of developers, with direct input into how the API takes shape.

Access to sunrise and sunset forecasts, with sensible rate limits.