An iterator is a tool that takes a list of multiple items and separates them so each item can be processed one by one. Instead of treating a full list as one large group, the iterator breaks the data into individual records that can each move through the next steps of an automation or workflow. This allows systems to handle large sets of data in a structured and repeatable way.
For marketing agencies, sales teams, and recruiters, iterators are useful when working with lead lists, scraped data, contact records, or enrichment results. When an API returns many businesses, prospects, or data points at once, an iterator can process each record separately and send it to the right destination, such as a CRM, spreadsheet, email tool, or database. This helps teams automate repetitive data handling instead of manually copying and organizing each item.
Real-World Example:
For example, a marketing agency using Outscraper to collect Google Maps business leads may receive hundreds of businesses in one API response. An iterator can separate each business record one by one, so every business name, phone number, website, email, rating, and address can be added individually into a CRM or outreach platform for lead qualification and campaign execution.