n8n-nodes-structura

Transform any document into structured JSON with AI.

This is an n8n community node that integrates with Structura — an intelligent document processing platform that converts PDFs, invoices, bank statements, contracts, and more into structured data (JSON, Excel, Markdown) using OCR + AI with 99.8% accuracy.

Features

• Document to JSON — Upload any PDF or image, get structured JSON back
• Custom Schema — Define exactly which fields to extract using JSON Schema
• Multiple Output Formats — JSON, Markdown, Text, or Spreadsheet
• 3 Processing Modes — Fast, Balanced, Accurate
• Auto-Wait — Automatically polls until extraction is complete
• AI Agent Compatible — usableAsTool: true for n8n AI workflows

Operations

| Operation | Description | |-----------|-------------| | Extract Document | Upload a document and extract structured data | | Get Document | Check status and retrieve extraction results | | List Documents | List all processed documents with filters | | Download Result | Download the extracted result as a file | | Get Credits | Check your current credit balance |

Installation

Community Node (recommended)

1. Go to Settings > Community Nodes in your n8n instance
2. Click Install a community node
3. Enter n8n-nodes-structura
4. Click Install

Manual

cd ~/.n8n/nodes
npm install n8n-nodes-structura
# Restart n8n

Setup

1. Create a free account at structura.com.br
2. Go to Dashboard > Integrations > API Keys
3. Create a new API key (starts with sk_)
4. In n8n, add Structura API credentials with your key

Usage Examples

Example 1: Invoice to JSON

[Read PDF] → [Structura: Extract Document] → [Your ERP/Spreadsheet]

Schema example for invoices:

{
  "type": "object",
  "properties": {
    "empresa": { "type": "string", "description": "Company name" },
    "cnpj": { "type": "string", "description": "CNPJ number" },
    "valor_total": { "type": "number", "description": "Total value" },
    "data_emissao": { "type": "string", "description": "Issue date" },
    "itens": {
      "type": "array",
      "description": "Line items",
      "items": {
        "type": "object",
        "properties": {
          "descricao": { "type": "string", "description": "Item description" },
          "quantidade": { "type": "number", "description": "Quantity" },
          "valor_unitario": { "type": "number", "description": "Unit price" }
        }
      }
    }
  }
}

Example 2: Bank Statement to Spreadsheet

[Email Trigger] → [Structura: Extract Document] → [Google Sheets]

Example 3: Contract Analysis

[Webhook] → [Structura: Extract Document] → [IF clause found] → [Slack Notification]

Pricing

| Plan | Credits/month | Price | |------|--------------|-------| | Free | 30 | R$ 0 | | Starter | 600 | R$ 69,90 | | Pro | 1,200 | R$ 119,90 |

1 credit = 1 page. Full pricing →

Support

• Structura Docs
• API Reference
• GitHub Issues

License

MIT