Always developer first! is a tech company that is building a product from developers for developers.
One of our core beliefs is the power of an interactive community.
We will always strive to provide tools that make your development experience even better.

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Clear Documentation

A great API is only valuable with extensive documentation supporting it. We provide such documentation covering every edge case.

Python SDK

Make your development process more convenient and effective by using our Python SDK. It facilitates communication with the API for Python programs. The library implements all calls to the endpoints defined in the Market Data API and Trading API. A developer's dream!

Diverse Content

You will find creative articles covering all kinds of use-cases and guides to understand the capabilities of first hand. This always includes code-snippets and hands-on tips & tricks to make your project more successful.

Participation & Open Source

We want to be continuously shaped by the people using it. Directly commit to by opening a pull request to our open source SDKs or docs.

Collaborate with us!

We want to support your project

Reach out to our Developer Advocates to discuss how we can transfer

your project or trading strategy ideas into content pieces that help other users

in building their own brokerage experience at the stock market.

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Get started


Register now and experience our API firsthand. Test your project within the Paper Trading API and place your first orders with the Trading API.
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As a tied agent under § 3 Sec. 2 WplG on the account and under the liability of DonauCapital Wertpapier GmbH, Passauer Str. 5, 94161 Ruderting (short: DonauCapital), GmbH offers you the receipt and transmission of orders for clients (§ 2 Sec. 2 Nr. 3 WpIG) of financial instruments according to § 2 Sec. 5 WpIG as well as brokerage of accounts.