Import Coinranking API data to Airtable

In this guide, we'll look at how to import cryptocurrency prices to Airtable using the Coinranking API. Coinranking provides prices for all cryptocurrencies through their free API. We'll use this API and the Data Fetcher Airtable app to create a crypto portfolio tracker in Airtable.

Install Data Fetcher

• Install Data Fetcher in the Airtable marketplace.
• When the Data Fetcher app launches, sign up for a free Data Fetcher account or sign in to your existing one.

Create Output Table

• Create a table in your base called 'Coins'.

• Add a field called 'Symbol' with type 'Single line text'.

• Add a field called 'Price' with type 'Currency' and the maximum precision (number of decimal places).

Import Coinranking API Data to Airtable

• On the home screen of the Data Fetcher app, click 'Create request'.

• On the create request screen, enter the request name 'Fetch Coin Prices'.

Based on the Coinranking API documentation the base URL for all API requests is 'https://api.coinranking.com/v2/'. We'll use the '/coins' endpoint to get prices for each cryptocurrency.

• Enter this URL on the create request screen:

https://api.coinranking.com/v2/coins

• Set the output table to the 'Coins' table by clicking 'Use current'.

• Set the output view to 'Grid view' by clicking 'Use current'.

• Click 'Run'. You'll see a loading message while the request runs, then the response field mapping modal will open.
• Click 'Filter all' to remove all fields, then re-add the following field mappings:

• Click 'Confirm'. The request will run again and update the 'Coins' table.
• Click 'Advanced' to open the Advanced settings and under 'Update based on Field', choose the 'Symbol' field. The app will use this field to ensure the coins in your base match those in Coinranking.
• Click 'Save'.

Pagination

By default, Coinranking gives returns 50 coins, but we can fetch more by turning on pagination.

• In the Advanced settings under 'Pagination' select 'Offset'.
• Set the number of pages to fetch to '3'. You can set it higher if you want to fetch more pages.
• In the 'Offset parameter' input, enter 'offset'.
• In the 'Limit parameter' input, enter 'limit'.
• In the 'Limit value' input enter '100'. Coinranking will now return 3 pages of 100 coins.
• Click 'Save' to save your request.
• Click 'Run' to fetch 300 (3 pages x 100 coins per page) coins.

Build a Crypto Portfolio Tracker in Airtable

• Create a table in your base called 'Portfolio'.
• Change the primary field to 'Id' with type 'Autonumber'.
• Add a field called 'Coin' that is linked to the 'Coins' table.
• Add a field called 'Price' that is a lookup of the 'Coin' field's price.
• Add a single select field called 'Exchange' with some options for the coin exchanges you use, e.g. 'Binance', 'Coinbase' e.t.c.
• Add a field called 'Balance' with type 'Number'. This is how much of the coin you have in that exchange.
• Add a formula field called 'Value (USD)' with the formula '{Price}*Balance' and select 'Currency' formatting with the maximum precision.

Update Coin Prices Automatically

At the moment we have to fetch prices from Coinranking's API by clicking the 'Run' button. We can use Data Fetcher's scheduled requests feature to automate this.

• In Data Fetcher, scroll to 'Schedule'.
• You will need a paid account to use this feature, so click the link to upgrade your account if you haven't already. After upgrading, click the 'I've done this' button.

• Add your Airtable API key if you haven't already.
• Turn on 'Schedule this API request'.
• Set how often you want the request to run.
• Click 'Save'.