List all functions on a custom workflow action
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Look something up
List all functions on a custom workflow action
with HubSpot
Works with AI assistants
Use HubSpot: its Automation Actions V4 Functions API lets you list all functions on a custom workflow action in a single step (GET /automation/actions/2026-09/{appId}/{definitionId}/functions). HubSpot also has an MCP server, so an AI assistant like Claude or ChatGPT can do it for you. capabilities.work can help you get signed up and connected.
- Which serverless functions are attached to my custom workflow action definition?
- How can I see every function my app's workflow action runs, across all types?
Say it to your AI assistant
- List all functions on action definition {definitionId} for app {appId}.
- Show me every function type configured for workflow action {definitionId} in app {appId}.
For your developer
GET /automation/actions/2026-09/{appId}/{definitionId}/functions in Automation Actions V4 Functions API. Full spec on APIs.io.