About This Site
Unified API for LinkedIn, WhatsApp, email, and B2B data automation LinkupAPI is a unified B2B API platform that gives AI agents and business applications access to LinkedIn engagement, WhatsApp messaging, real-time web crawling, professional email discovery, contact enrichment, company data, and buying signals. It provides more than 50 endpoints for activities such as sending LinkedIn messages, managing invitations, interacting with posts, finding and verifying emails, extracting company information, monitoring job postings, and identifying real-time intent signals. The platform is designed for sales, recruitment, CRM enrichment, no-code automation, and AI-agent workflows.
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Key Features AI
Core Features
LinkedIn messaging, invitations, comments, reactions, likes, posts, and outreach campaigns
WhatsApp messaging API for B2B engagement workflows
Real-time web crawling for company information, funding signals, recruiting insights, and buying intent
Professional email finder, verifier, enrichment, and reverse email lookup
People, company, profile, job posting, and fundraising data APIs
Multi-account LinkedIn connectivity
AI-agent access to B2B channels and enriched data
No-code integrations with Make, n8n, and Zapier
Real-time processing with a zero-storage architecture
More than 50 API endpoints with an advertised 99.9% uptime
Advantages
Combines engagement, email, web crawling, and B2B data APIs in one platform
Supports LinkedIn, WhatsApp, professional email, and real-time web data workflows
Offers more than 50 endpoints for product integrations and automation
Includes multi-account LinkedIn connectivity
Provides no-code integration options through Make, n8n, and Zapier
Advertises fast average response times and 99.9% uptime
Uses real-time processing and states that it does not permanently store data
Supports sales, recruitment, CRM, and AI-agent use cases
缺点：No free plan or free trial quota is stated in the provided pricing information
缺点：Usage is credit-based, so costs vary by endpoint and action
缺点：The lowest plan includes only 500 credits per month
缺点：Unlimited usage is available only through the $3,000-per-month company plan
缺点：Some LinkedIn and WhatsApp workflows may require users to manage authentication tokens and connected accounts
缺点：Automated outreach and data extraction should be reviewed for compliance with applicable platform terms and privacy regulations
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