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Price Custom Assets From Your Own Data Provider

Link a custom asset to EODHD, Twelve Data, Alpha Vantage, Finnhub or a feed of your own with the free Turbobulls Connector, so its prices keep themselves up to date. Your API key stays on your device.
Price Custom Assets From Your Own Data Provider
When Turbobulls has no price for an asset, the free Turbobulls Connector can ask your own market-data provider, with your own API key, and keep the asset up to date.
A pension fund, a fund on a small exchange, a feed you keep yourself: market prices in Turbobulls cover a lot, but not everything. If you already pay for market data, a custom asset can take its prices from there. You link it once; after that its daily closes come in on their own.
Your key stays on your device. It lives in the Connector and goes only to your provider. Turbobulls never receives it. We receive only the prices, saved end-to-end encrypted with the rest of your portfolio, so we cannot read them or which assets you price this way.

What You Need

  • Turbo Pro, or the 14-day free trial. On another plan, an asset you linked before keeps its prices, but they stop updating.
  • A computer with Chrome, Edge or Firefox. Safari is not supported: it does not let a secure website talk to a program on your computer.
  • An API key from EODHD, Twelve Data, Alpha Vantage or Finnhub, or a feed of your own: any https:// address that answers JSON or CSV.

1. Get the Turbobulls Connector

Browser extension

For Chrome and Edge. Nothing to keep running: it works whenever Turbobulls is open.

Learn more
App for your computer

For Firefox, or any browser without the extension. A small program you start on your computer.

Learn more
1
Install the Turbobulls Connector extension from the Chrome Web Store, or start the Connector app on your computer. Edge installs the extension from the Chrome Web Store too: allow extensions from other stores when Edge asks.
2
In Turbobulls, open Settings > Custom data sources. It says whether a Connector answers on this device.
3
With the Connector app, turn on Use the Connector app on this device. Your browser asks once whether Turbobulls may reach your computer: allow it.

2. Add Your Key

1
Open the Connector's settings from Settings > Custom data sources. With the Connector app, the keys go in its settings file instead, as its quick start shows.
2
Under Your API keys, paste the key of the provider you pay for and save it. The Connector checks it with one small request.
3
For a feed of your own, add a source with its address and where the date and the price are in its answer. The Connector's settings offer a free public example to start from: the European Central Bank's daily euro rates.
1
Add a custom asset, or open one you already track. With many to add, import them from a CSV or Excel file first.
2
On its Prices tab, choose From a custom data source.
3
Pick the source, search for the symbol and pick it. At least a year of daily prices comes in at once.
Add custom asset
Prices from a custom data source
EODHD nova pension
NOVA.XETRA Nova Pension Fund AXETRA · EUR · Fund
NOVB.XETRA Nova Pension Fund BXETRA · EUR · Fund
NOVA.F Nova Pension Fund AFrankfurt · EUR · Fund
253 prices from EODHD for NOVA.XETRA are in the list, 24 Oct 2025 to 24 Oct 2026.
The Add custom asset window on its Prices tab, on sample data: From a custom data source picked, EODHD as the source, "nova pension" searched and NOVA.XETRA chosen, and its 253 prices from 24 Oct 2025 to 24 Oct 2026 in the list.

How Prices Stay Up to Date

While Turbobulls is open on a computer with the Connector, it asks for the newest closes every three hours, at most twice a day for each asset. Refresh now in Settings > Custom data sources asks at once.

Your phone receives the prices with the next sync and shows when each asset was last updated, but it cannot fetch them itself. The prices are daily closes, not prices during the day.

In Settings > Custom data sources, find the asset under Linked assets and choose Unlink. Its prices so far stay as your own, to edit by hand, and you can link it again from its Prices tab.

Provider names

EODHD, Twelve Data, Alpha Vantage and Finnhub are named only to show which services the Connector can ask with your own key. Turbobulls is not affiliated with or endorsed by any of them, and your use of each is under your own plan and its terms.

Open Source

Both the extension and the Connector app are open source, under the MIT license, so anyone can check what they do with a key: turbobulls-extension and turbobulls-bridge.

More on the feature: custom data sources.

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