If you want to build dApp, for example, a multi-currency wallet or crypto exchange, and connect BTC nodes there, you have to run them yourself (which is quite expensive and time-consuming) or to find a nodes provider.
We at [Getblock](https://getblock.io/) provide API connection to over 40 full nodes from many leading blockchain platforms. The service allows you to request on-chain information from a node, so you shouldn’t waste your time on day-to-day updates, fixing bugs, constant syncing, equipment failures, multiple nodes issues, etc.
To start using our nodes, simply [register on GetBlock](https://account.getblock.io/sign-in) and get a free API key in your account.
*40,000 requests/day are provided for free*