What is gRPC WebUI?

gRPC WebUI provides a simple web interface to interact with blockchain gRPC endpoints. This tool allows developers and users to easily query chain data, submit transactions, and explore blockchain APIs without writing code.

Our hosted gRPC WebUI instances provide access to various blockchain networks in the Cosmos ecosystem, making it easier to develop, debug, and interact with these chains.

How to Use

Once you access a chain's gRPC WebUI:


  1. Select a service from the left sidebar (e.g., cosmos.bank.v1beta1)
  2. Choose a method to call (e.g., AllBalances)
  3. Fill in the required parameters in the JSON format
  4. Click "Invoke" to execute the request
  5. View the response data in the results panel

This provides a convenient way to explore and interact with blockchain data without needing to set up a local node or write custom code.

Technical Details

The gRPC WebUI tool is powered by grpcui, an open-source project developed by FullStory. ChainTools hosts and maintains instances of this tool configured for various Cosmos ecosystem blockchains.

For advanced users wanting to run their own instance, you can install and run the tool directly:

go install github.com/fullstorydev/grpcui/cmd/grpcui@latest
grpcui -plaintext localhost:9090

Our hosted instances are configured to connect to secure gRPC endpoints and are regularly maintained to ensure compatibility with the latest blockchain versions.