Linkedin

Professional networking platform connecting individuals and organizations for career development, hiring, and business relationships. Profiles, job postings, content sharing, and LinkedIn Learning form the core experience, with developer APIs enabling third-party integrations.

LinkedIn serves organizations across recruiting, sales, and marketing through Talent, Sales, and Marketing Solutions. Part of the Microsoft ecosystem, it offers access to a professional graph used by enterprises for hiring, lead generation, and brand awareness. The developer platform differs from general social APIs by focusing on professional identity, company data, and B2B use cases.

Key capabilities:

• OAuth 2.0 and Rest.li protocol for API access
• Official JavaScript and Python client libraries for server-side integrations
• Verified on LinkedIn API for user authentication and trust signals
• Company Intelligence API for engagement and audience insights
• Talent Solutions, Marketing Solutions, and Sales Solutions for business integrations

Developers integrate LinkedIn for sign-in with professional identity, job application flows, recruiting tools that sync with applicant tracking systems, and sales intelligence for prospecting. Marketing teams use APIs for ad campaigns and audience targeting. HR and learning platforms connect to LinkedIn Learning for course catalogs and skills data.