Apollo Install & Auth Overview Set up Apollo.io API client and configure authentication credentials. Apollo uses the HTTP header for authentication against the base URL . There is no official SDK — all integrations use the REST API directly. Prerequisites - Node.js 18+ or Python 3.10+ - Package manager (npm, pnpm, or pip) - Apollo.io account with API access (Basic plan or above) - API key from Apollo dashboard (Settings Integrations API Keys) Instructions Step 1: Install HTTP Client Step 2: Configure API Key Apollo supports two API key types: - Master API key — full access to all endpoints (r…