ActionAWS LambdaUpdated September 2026

What Lambda functions exist in this region?

Short answer: You can list lambda functions in AWS Lambda by hand from its own interface, but it won’t repeat itself. On TinyCommand, add the AWS Lambda List Lambda Functions action to a workflow, map its 1 input from any upstream app, and it runs automatically every time the trigger fires. No code, and a free tier to start.

List Lambda Functions in AWS Lambda — start free All 2 AWS Lambda actions

List Lambda Functions in AWS Lambda — start free

Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

Field	Type	Required	Description
Max Results max_items	number	Optional	How many functions to return (1-10000). Default 50.

Sample request

{
  "max_items": "{{trigger.max_items}}"
}

Returns

{
  "Functions": [
    {
      "Handler": "index.handler",
      "Runtime": "nodejs20.x",
      "FunctionArn": "arn:aws:lambda:us-east-1:123456789012:function:my-function",
      "FunctionName": "my-function",
      "LastModified": "2026-05-01T12:00:00.000+0000"
    }
  ]
}

Use these fields in downstream nodes for routing, logging, or error handling.

Triggered by

Apps that pair well as the trigger for List Lambda Functions.

Any of these apps can fire this action as part of a workflow.

Google Sheets → AWS Lambda

2 Google Sheets triggers

HubSpot → AWS Lambda

18 HubSpot triggers

FAQ

Questions about List Lambda Functions.

What does the List Lambda Functions action do in AWS Lambda?

Returns all Lambda functions in the connected AWS account + region with name, runtime, and ARN. Useful for inventorying available functions when setting up an Invoke action.

What inputs does List Lambda Functions require?

List Lambda Functions has no required inputs. Sensible defaults are applied if you leave fields blank.

Can I use dynamic inputs from earlier workflow nodes?

Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.

What happens if AWS Lambda returns an error?

The run history shows the failed step with its input and the error message AWS Lambda returned, so you can fix the input and run the workflow again. Automatic retries are built into HTTP steps only, where you can also set your own retry count and delay.

Does List Lambda Functions support batch operations?

Run List Lambda Functions inside a loop to process each item in an array. TinyCommand does not throttle calls for you, so for large arrays add a Delay step if you need to stay within AWS Lambda's rate limits.

More actions

Other AWS Lambda actions.

Action

Invoke Lambda Function

Synchronously or asynchronously invokes a Lambda with a JSON payload. Sync waits for the response (up to 15 min, Lambda's max); async returns immediately with an InvocationId for fire-and-forget patterns. The right escape hatch when the workflow needs Python/Node logic that doesn't fit cleanly into a Code step.

List Lambda Functions in AWS Lambda — start free