LinkupAPI

LinkupAPI packages the B2B channels that are painful to automate into 50+ endpoints: LinkedIn messaging, invitation management and post engagement; WhatsApp messaging; real-time web crawling for company info, funding signals and recruiting insights; plus professional email discovery, verification and enrichment.

Anyone who has tried to drive LinkedIn programmatically knows the maintenance burden — session handling, rate limits, account flags — and this is exactly the layer LinkupAPI sells as a service, so your AI agents or outbound tooling call an API instead of babysitting a headless browser.

Who it's for: sales and recruiting teams building automated outreach on top of LLM agents, CRM enrichment pipelines, and anyone whose product needs LinkedIn/WhatsApp touchpoints without a compliance department writing the integration. Priced per use with a $3 entry point. Standard caution for the category: platform automation always carries some account-policy risk, so start with low volumes and verify the data quality on your own segments before scaling.