Buying Signals API – Detect Intent, Reach the Same Day

what linkupapi allow you to do

Buying signals detection

Detect intent signals like funding rounds, hiring activity, and company growth. Reach prospects at the perfect moment with real-time alerts.

Multi-source data

Aggregate information from dozens of public sources. Get the most complete profiles by combining data from multiple sources.

Multi B2B channel

Reach prospects across LinkedIn, WhatsApp, email, and web. Manage all B2B channels through one unified API platform.

Zero-storage architecture

Process data on-the-fly without permanent storage. Maximum security with zero data retention and complete privacy protection.

Compliance first

Never store credentials or post-login data. EU-hosted, GDPR and CCPA compliant, with a data processing agreement on request.

Flexible pricing

Credit-based system that scales with your usage. Only pay for what you use with no hidden fees or long-term commitments.

// What it does

Someone who reacts to a post about your category is closer to buying than a cold list. Pull the reactions and comments of any post, enrich the engagers, and start the conversation while the topic is fresh. Add funding and hiring signals for the account side.

// Three workflows teams ship with it

Use case · Competitor posts

Engagers of a competitor's launch post

Get everyone who liked or commented, keep the ICP matches, send a note that references the post.

212 reactions pulled, 48 ICP matches, Invitations sent

LinkedIn comment API

Use case · Funding

Reach companies the week they raise

Track recent rounds in your segment, find the decision-maker, mention the raise in the first message.

Series A detected, CRO found, Message sent

Fundraising API

Use case · Hiring

Open roles as a trigger

A company opening sales roles needs sales tools. Watch job postings per account and start the sequence on the first new role.

New SDR roles detected, Account prioritized, Sequence started

Company job postings API

// Two calls, one sequence

1import requests
2
3H = {"x-api-key": "YOUR_API_KEY"}
4ACC = "YOUR_ACCOUNT_ID"
5
6# 1. Who reacted to this post?
7reactions = requests.post("https://api.linkupapi.com/v2/content", headers=H, json={
8    "account_id": ACC, "action": "get_reactions",
9    "params": {"post_url": "https://www.linkedin.com/posts/competitor_launch-activity-7300000000000000000", "count": 100}
10})
11
12# 2. Invite the ones that match your ICP, with the post as context
13invite = requests.post("https://api.linkupapi.com/v2/network", headers=H, json={
14    "account_id": ACC, "action": "invite",
15    "params": {"profile_url": "https://www.linkedin.com/in/janedoe",
16               "message": "Hi Jane, saw your comment on the launch post. We solve the same problem differently, worth a look?"}
17})
18
19print(reactions.json(), invite.json())

Jane Doe

Head of Revenue · reacted 2 h ago

100 reactions pulled from the post
48 profiles match the ICP
Invitation sent with the post as context

// How it compares

// SECURITY & COMPLIANCE

Privacy and security with no compromise.

Your users trust you with their accounts. Here is how we keep them safe.

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Passwords never stored

We never keep your users' passwords. Sessions are encrypted, isolated per account and revocable at any time.

EU-hosted, GDPR & CCPA

Data is processed and hosted in the European Union. GDPR and CCPA compliant, with a data processing agreement on request.

Google-verified security

LinkupAPI passed Google's CASA security assessment and is a verified Gmail app. Same review, same standards for every channel.

New signal detected

+100 ready to use automated actions

Enterprise-grade security measures ensuring your data remains protected at every step of the process.

Frequently asked questions.

LinkupAPI V2 - See what’s new

LinkedIn, email and WhatsApp through one API. Unlimited accounts, one fixed price.

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50

+

Endpoints

99.9

%

Uptime

< 3

s

Avg Response

Buying signals API: post engagement, funding and hiring