Kadindexer is an open-source API that provides efficient access to the Kadena blockchain — including transactions, token balances, and contract events. It offers a simple way for developers to integrate blockchain data into their applications without running a full Kadena node.
Kadindexer exposes a GraphQL API that lets you query blockchain data on demand — from block details to token transfers — making it ideal for building wallets, block explorers, analytics dashboards, and more.
Its architecture is designed for flexibility. You can use Kadindexer as a plug-and-play API out of the box or extend it to support more advanced use cases. Because it’s fully open-source, you can also customize and scale it to match your specific requirements.
You’ll need an API key to access Kadindexer.
Get one for free from the Kadindexer Dashboard.
The free tier includes 10,000 requests per month.
Follow the steps below to generate your key:
Use your Google account to sign in to the dashboard.
Once logged in, click Go to API Management in the dashboard.
Click the Create button to generate a new API key.
Enter a name for your key in the input field and click Create.
You’ll now see your list of API keys. Use the copy icon to copy your key — you’ll need it for all API requests.
It’s a good idea to keep this page open while following the rest of this guide.
Once you have your API key, you can start interacting with Kadindexer.
Choose one of the following guides from the sidebar or the next pages to get started: