APIs

gRPC
integration

Call gRPC service methods from an internal ToolJet interface.

Start building Read the setup guide

Configure your connection, create queries, and build the interface your team needs. Try a sample prompt

Connector capabilities

What can ToolJet do with gRPC?

Create queries for the operations your app needs, then connect their inputs and results to the interface.

Discover services with server reflection
Import protobuf definitions by URL
Call service methods
Configure request metadata

Operations and configuration can vary by connector version. Check the full gRPC guide.

An app you could build

Service operations console

Build a form for the inputs to a unary RPC method and display the response for the operator.

Try this prompt

I have a gRPC service with a method that looks up an order by ID. Build a service console with an order ID form and a Run request button. Display the returned fields and show an actionable error if the call fails.

Start with this prompt in ToolJet. Sign in or create an account, then connect your data source and replace the example names and fields with yours.

Review the generated app, configure permissions, and test its queries before sharing it with your team.

Explore app templates

Connect gRPC

Start with the connection.

Before you begin

A reachable gRPC endpoint, its authentication details, and either server reflection or a URL for the required protobuf definition.

Add the data source
Open Data Sources in your ToolJet workspace. Select gRPC and enter the required connection details.
Configure and test a query
Choose an operation and supply its inputs. Start with a read operation where available; test writes with non-production data.
Build the interface
Bind query results to components and connect actions to app events. Verify permissions and error handling before rollout.

gRPC setup guide

Before production

The current gRPC 2.0 connector uses server reflection or remote protobuf definitions. The deprecated connector has different setup requirements; use the guide for the version on your instance.

Review plans and deployment options

Questions, answered

gRPC and ToolJet FAQ

What can I do with the gRPC integration?

Call gRPC service methods from an internal ToolJet interface. Supported capabilities: Discover services with server reflection; Import protobuf definitions by URL; Call service methods; Configure request metadata.

What do I need to connect gRPC to ToolJet?

A reachable gRPC endpoint, its authentication details, and either server reflection or a URL for the required protobuf definition.

What should I check before using gRPC in production?

The current gRPC 2.0 connector uses server reflection or remote protobuf definitions. The deprecated connector has different setup requirements; use the guide for the version on your instance.

Can I automate tasks with gRPC?

Connect gRPC queries to app events such as button clicks and form submissions. ToolJet Workflows and Agent Builder can orchestrate supported connectors on Self-hosted deployments; those products are not available on ToolJet Cloud. Check the connector and deployment requirements for your use case.

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