⚒️ Api schema extractor
⚡ 29,284 views · ⚒️ Engineering
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Description
This workflow automates the process of discovering and extracting APIs from various services, followed by generating custom schemas. It works in three distinct stages: research, extraction, and schema generation, with each stage tracking progress in a Google Sheet.
🙏 Jim Le deserves major kudos for helping to build this sophisticated three-stage workflow that cleverly automates API documentation processing using a smart combination of web scraping, vector search, and LLM technologies.
How it works
Stage 1 - Research:
- Fetches pending services from a Google Sheet
- Uses Google search to find API documentation
- Employs Apify for web scraping to filter relevant pages
- Stores webpage contents and metadata in Qdrant (vector database)
- Updates progress status in Google Sheet (pending, ok, or error)
Stage 2 - Extraction:
- Processes services that completed research successfully
- Queries vector store to identify products and offerings
- Further queries for relevant API documentation
- Uses Gemini (LLM) to extract API operations
- Records extracted operations in Google Sheet
- Updates progress status (pending, ok, or error)
Stage 3 - Generation:
- Takes services with successful extraction
- Retrieves all API operations from the database
- Combines and groups operations into a custom schema
- Uploads final schema to Google Drive
- Updates final status in sheet with file location
Ideal for:
- Development teams needing to catalog multiple APIs
- API documentation initiatives
- Creating standardized API schema collections
- Automating API discovery and documentation
Accounts required:
- Google account (for Sheets and Drive access)
- Apify account (for web scraping)
- Qdrant database
- Gemini API access
Set up instructions:
- Prepare your Google Sheets document with the services information. Here’s an example of a Google Sheet – you can copy it and change or remove the values under the columns. Also, make sure to update Google Sheets nodes with the correct Google Sheet ID.
- Configure Google Sheets OAuth2 credentials, required third-party services (Apify, Qdrant) and Gemini.
- Ensure proper permissions for Google Drive access.
🔗 Nodes Used
Google Sheets, HTTP Request, Google Drive, Execute Sub-workflow, Execute Workflow Trigger, Filter
📥 Import
Download workflow.json and import into n8n:
Workflow menu → Import from File