n8n Node Guide: Output Parser

Description

AI & LangChain node in n8n.

What It Does

Validate and structure LLM output against a schema.

When To Use It

Guaranteeing JSON/structured output from LLM chains and agents.

Key Parameters

Schema (JSON), autoFix (retry on invalid)

Common Mistakes

Without a parser, LLM output is a string – parsing it yourself is fragile.

Example

LLM Chain -> Output Parser (JSON schema) -> guaranteed valid object.

FAQ

Is this node included in n8n Community Edition?

Yes – Output Parser ships with the free Community Edition. No paid license needed.

Enable autoFix to retry invalid output automatically (costs extra calls).?

Where does it fit in a workflow?

Output Parser works with any other node – connect it after a trigger or data node, and feed its output into the next step. Standard n8n data flow: trigger -> transform -> act.

Is support included?

Yes – message the seller through the store and I will help you wire this node.