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Structured Output Parser#

Use the Structured Output Parser node to return fields based on a JSON Schema.

On this page, you'll find the node parameters for the Structured Output Parser node, and links to more resources.

Examples and templates

For usage examples and templates to help you get started, refer to n8n's Structured Output Parser integrations page.

Parameter resolution in sub-nodes

Sub-nodes behave differently to other nodes when processing multiple items using an expression.

Most nodes, including root nodes, take any number of items as input, process these items, and output the results. You can use expressions to refer to input items, and the node resolves the expression for each item in turn. For example, given an input of five name values, the expression {{ $json.name }} resolves to each name in turn.

In sub-nodes, the expression always resolves to the first item. For example, given an input of five name values, the expression {{ $json.name }} always resolves to the first name.

Node parameters#

JSON Schema: a JSON schema to structure and validate the output. Read the JSON Schema guides and examples for help creating a valid JSON schema.

View example workflows and related content on n8n's website.

Refer to LangChain's structured output parser documentation for more information about the service.

View n8n's Advanced AI documentation.