Reach your prospects on LinkedIn, Email and WhatsApp through a single powerful API. Built for AI agents and software.
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One API for the whole outreach loop.
Find the right prospects, spot who is showing intent, reach them on LinkedIn, email and WhatsApp, and get every reply back in real time. Same API key, same request format.











signal api
your product
inside of your product


Outreach, built into your product.
AI agent, sales platform, ATS or CRM: give your users prospecting and multichannel outreach without building the plumbing yourself.
Your agent finds prospects, messages them on LinkedIn, email or WhatsApp and reads the replies, through the REST API or our MCP server.
Build outreach into your sales platform: your users connect their accounts, launch multichannel sequences and get every reply back inside your product.
Connections, messages, comments and post engagement from your own interface, on accounts that stay connected and safe.
Source candidates, monitor job postings and reach them on LinkedIn or by email straight from your ATS.
Enrich contacts and companies in real time, then let your users message them without leaving the CRM.
Connect the LinkupAPI MCP server to Claude, ChatGPT or any MCP client. It searches, messages and reads replies with your connected accounts.
A seamless linkedin integration for your products.

Théo Dourecannou
CEO Pulsor
On ne pourrait jamais gérer Pulsor Agency sans ces 5 outils indispensables 👇... Voir plus

Théo Dourecannou
CEO Pulsor
On ne pourrait jamais gérer Pulsor Agency sans ces 5 outils indispensables 👇... Voir plus

Théo Dourecannou
CEO Pulsor
On ne pourrait jamais gérer Pulsor Agency sans ces 5 outils indispensables 👇... Voir plus

Engage with prospects at scale. Automate likes, comments, and interactions directly through your product.
your product
Run multi-step LinkedIn outreach campaigns. Connect accounts, launch sequences, and track results in real-time.
Find the email. Send it. Same API.
Find and verify a prospect's work email from a LinkedIn profile, then send from your users' own Gmail or Outlook mailboxes. Replies and bounces come back by webhook.
Unlimited accounts. One fixed price.
Connect as many LinkedIn, email and WhatsApp accounts as your users bring. You pay for credits, never per seat, and the bill never goes above $3,000 a month.
MCP-first. Plug LinkupAPI into Claude, ChatGPT or Gemini in one click.
step n°1
step n°2
Explore the documentation
Follow clear guides and examples to integrate the API fast.
Book a call with us
Get personalized help from our team for your integration.
step n°3
Connect once, launch fast and scale without limits.
From instant setup and credit activation to dedicated support, every step is built to help you launch faster and scale without limits.
Our frequently asked questions.
Will my users' accounts get banned?
How does pricing work? Is there a per-account fee?
Which channels are supported?
Does it work with Claude, ChatGPT or my own agent?
How do I get replies, and is it GDPR compliant?


