Simple / Convenient / Flawless

Trade Stocks & ETFs via API

Open your fully fledged brokerage account and start trading Stocks and ETFs.

Manage your Positions and retrieve historical and real-time Market Data.

All through one API.

Known from

The brokerage infrastructure for developers


Open your brokerage account and buy stocks and ETFs. Manage your Positions, Orders, and Account. Instant order execution between 8am and 10pm. All through  one API. 

Market data

Retrieve historical market data or stream data in real-time. Quotes, Prices and OHLC aggregations ready to be integrated in your trading use case.

Paper Trading

Sign up in seconds and start placing your first test trades. We set you up with 100k paper money - no credit card required. 

Find resources to get started


Join more than 650 developers in our Slack community to get help and input on your trading use case. 


Make use of our blog articles, YouTube videos and other  content resources to find inspiration for your own project. For beginners and pros.

Your money is safe with us

Highest protection

All your cash funds are legally protected up to 100,000€ by the Deposit Protection Fund and are held by Baader Bank, a regulated German custodian bank.

Your securities are yours

All your securities are independent of your cash funds - they are your own property and belong to you - no matter what!

Free brokerage account

There are no hidden fees attached to your brokerage account. Opening and maintaining a brokerage account with our partner Baader Bank is free of charge.

See how easy it is to use our API

Simple and instant order execution. Extensive Market Data. Rich Documentation with many code examples to get you started. Manage your entire Trading Experience through one API.

Get started in two Minutes
At, we give all the power to you. With just a few API calls you can manage your entire account. Check your balance, see how much Cash to Invest you have or simply request your positions right away.
Get Market Data
Use to get data for tradable instruments like stocks or ETFs. Additionally, we provide real-time as well as historical quotes, open-high-low-close (OHLC) and trades data directly from the stock exchange!
Place Orders with the REST-API
Conveniently place market, limit, stop market, or stop-limit orders with us. Your purchased shares will be directly submitted to an overview of all your positions afterwards.
1import requests
2response = requests.get("",
3        headers={"Authorization": "Bearer YOUR_TOKEN_HERE"})
5returns this: {
6  "balance": 5000.00,
7  "cash_to_invest": 5000.00
11params = {"search": "Coinbase", "type": "stock"}
13        headers={"Authorization": "Bearer YOUR_TOKEN_HERE"},
14        params=params)
17returns this: [{
18    "isin": "US19260Q1076",
19    "wkn": "A2QP7J",
20    "name": "COINBASE GLB.CL.A -,00001",
21    "title": "COINBASE GLOBAL INC.",
22    "type": "stock",
23    "currency": "EUR",
24    "tradable": true,
28order_details = {
29  "isin": "US19260Q1076",  # ISIN of coinbase
30  "valid_until": 1624448807,  # timestamp
31  "side" : "buy",
32  "quantity": 2,
35        data=order_details,
36        headers={"Authorization": "Bearer YOUR_TOKEN_HERE"})

Integrate into your own product

Are you a developer and want to build a project that is consumed by others? Are you part of a company interested in offering brokerage services to your customers?

We would love to hear from you - please get in touch via

6k stocks & 1.5k ETFs
Historical & live market data
Rich & clean documentation
SDKs & a vivid community
Get started!


Register now and experience our API firsthand. Test your project within the Paper Trading API or start wiring funds to your account and place your first orders with the Trading API.

Need any help?
Ask a question in our CommunityAsk a question in our CommunityGet started with our DocumentationGet started with our DocumentationGet inspired on our BlogGet inspired on our Blog
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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 § 3 Sec. 5 WpIG as well as brokerage of accounts.