# PeopleDB > PeopleDB is a contact intelligence API for developers. It accepts a LinkedIn profile identifier or GitHub username as input and returns a unified contact record containing verified email addresses (classified as personal or work), phone numbers, and linked social handles. Pricing is credit-based with no monthly subscription — credits range from 2¢ per lookup at the 100-credit tier down to 1¢ per lookup at 10,000 credits. Credits do not expire. New accounts receive 10 free credits with no payment method required. ## API Reference - [API Documentation](https://docs.peopledb.co): Full endpoint reference, authentication, and response schemas ## Key Pages - [Homepage](https://peopledb.co): Product overview and API example - [Pricing](https://peopledb.co/pricing): Per-lookup credit pricing, no subscriptions - [LinkedIn Lookup](https://peopledb.co/tools/linkedin-lookup): Web tool for individual lookups by LinkedIn profile - [Chrome Extension](https://peopledb.co/chrome-extension): Browser extension for LinkedIn profile lookups - [Zapier Integration](https://peopledb.co/zapier): No-code contact enrichment automation ## Comparisons - [vs. Clearbit](https://peopledb.co/clearbit-alternative) - [vs. ContactOut](https://peopledb.co/contactout-alternative) - [vs. Apollo](https://peopledb.co/apollo-alternative) - [vs. Hunter](https://peopledb.co/hunter-alternative)