6 APIs

Contact & Lead Data APIs

APIs for lead generation and contact enrichment. Find emails, phone numbers, and social profiles to build and enrich prospect lists.

What is a contact data API?

A contact data API returns business contact details as structured JSON: emails, phone numbers, and social profiles. OpenWeb Ninja's contact and lead data APIs find this information from websites and the public web, so you can turn a domain or business name into a usable lead. Use them for lead generation, prospecting, and CRM enrichment, with a free tier and simple REST endpoints.

Contact & Lead Data APIs

Start building with real-time web data

Every API includes a free tier. No credit card required, and the first request is a minute away.