LinkdAPI Node.js - The best API for professional Data

🔑 Get Your API Key (100 free credits) • 📖 Full Documentation • 💬 Support

⚡ Zero Dependencies • 🚀 Native Fetch API • 🎯 Production Ready

A lightweight Node.js wrapper for LinkdAPI — the most advanced API for accessing professional profile and company data. With unmatched reliability, stability, and scalability, it's perfect for developers, analysts, and anyone building tools that work with professional networking data at scale.

📑 Table of Contents

• Why LinkdAPI?
• Why LinkdAPI Beats Alternatives
• 📦 Installation
• ✨ Key Features
• 🚀 Quick Start
  • ESM Usage
  • CommonJS Usage
  • Advanced Async Pattern
• ⚡ Performance Benefits
• 📚 API Reference
• 💡 Real-World Examples
• 📈 Use Cases
• 🔧 Error Handling
• 🔗 Resources
• 📜 License

Why LinkdAPI?

• We deliver data reliably and efficiently without relying on complex workarounds.
• Built for scale, stability, and accuracy, so your applications run smoothly.
• Perfect for automation, data analysis, contact enrichment, and lead generation.

Why LinkdAPI Beats Alternatives

| Feature | LinkdAPI | SerpAPI | Scraping | |---------|----------|---------|----------| | Reliable Data Access | ✅ Yes | ❌ No | ❌ No | | No Proxy Management | ✅ Yes | ❌ No | ❌ No | | No Cookies Management | ✅ Yes | ❌ No | ❌ No | | Structured JSON Data | ✅ Yes | ❌ HTML | ✅ Yes | | Scalability | ✅ Built for scale | ❌ Rate-limited | ❌ Manual effort | | Pricing Transparency | ✅ Clear pricing tiers | ✅ Pay-per-request | ❌ Hidden costs (proxies, CAPTCHAs) | | API Reliability | ✅ High uptime | ✅ Good | ❌ Unstable (blocks) | | Automation-Friendly | ✅ Full automation | ✅ Partial | ❌ Manual work needed | | Support & Documentation | ✅ Dedicated support | ✅ Good docs | ❌ Community-based | | Stability & Resilience | ✅ Optimized for reliability | ❌ Limited | ❌ High risk |

📦 Installation

Install with npm:

npm install linkdapi

Or with yarn:

yarn add linkdapi

Note: Requires Node.js 18.0.0 or higher (uses native fetch API)

✨ Key Features

🔄 Full TypeScript Support

• Type Definitions - Built-in TypeScript support
• IntelliSense - Full IDE autocomplete
• Type Safety - Catch errors at compile time

🚀 Performance Optimized

• Built-in retry mechanism
• Automatic request throttling
• Zero external dependencies
• Native fetch API

🛠️ Developer Friendly

• Full type hints support
• Comprehensive error handling
• ESM and CommonJS support
• Extensive documentation

🎯 Production Ready

• Automatic retries with exponential backoff
• Timeout configuration
• Error recovery
• Battle tested

🚀 Quick Start

ESM Usage

import { LinkdAPI } from 'linkdapi';

// Initialize the client
const api = new LinkdAPI({ apiKey: 'your_api_key' });

// Get profile overview
const profile = await api.getProfileOverview('ryanroslansky');
console.log(`Profile: ${profile.data.fullName}`);

// Get company information
const company = await api.getCompanyInfo({ name: 'google' });
console.log(`Company: ${company.data.name}`);

CommonJS Usage

const { LinkdAPI } = require('linkdapi');

const api = new LinkdAPI({ apiKey: 'your_api_key' });

async function main() {
  // Single request
  const profile = await api.getProfileOverview('ryanroslansky');
  console.log(`Profile: ${profile.data.fullName}`);

  // Fetch multiple profiles concurrently
  const profiles = await Promise.all([
    api.getProfileOverview('ryanroslansky'),
    api.getProfileOverview('satyanadella'),
    api.getProfileOverview('jeffweiner08')
  ]);

  for (const profile of profiles) {
    console.log(`Name: ${profile.data.fullName}`);
  }
}

main();

Advanced Async Pattern

import { LinkdAPI } from 'linkdapi';

async function fetchProfileData(username: string) {
  const api = new LinkdAPI({ apiKey: 'your_api_key' });

  // Get profile overview first
  const overview = await api.getProfileOverview(username);
  const urn = overview.data.urn;

  // Fetch multiple endpoints concurrently
  const [details, experience, education, skills] = await Promise.all([
    api.getProfileDetails(urn),
    api.getFullExperience(urn),
    api.getEducation(urn),
    api.getSkills(urn)
  ]);

  return {
    overview,
    details,
    experience,
    education,
    skills
  };
}

// Usage
const data = await fetchProfileData('ryanroslansky');

⚡ Performance Benefits

The async nature of Node.js provides significant performance improvements when making multiple API calls:

| Scenario | Sequential | Concurrent (Promise.all) | Improvement | |----------|------------|--------------------------|-------------| | Single Request | ~200ms | ~200ms | Same | | 10 Sequential Requests | ~2000ms | ~2000ms | Same | | 10 Concurrent Requests | ~2000ms | ~200ms | 10x faster | | 100 Concurrent Requests | ~20000ms | ~500ms | 40x faster |

When to use Concurrent:

• ✅ Scraping multiple profiles at once
• ✅ Batch processing jobs or companies
• ✅ Real-time data aggregation
• ✅ Building high-performance APIs

When to use Sequential:

• ✅ Simple scripts
• ✅ Single requests
• ✅ Learning/prototyping

📚 API Reference

All methods return Promises and support async/await.

// Profile Information
getProfileOverview(username)              // Basic profile info
getProfileDetails(urn)                    // Detailed profile data
getContactInfo(username)                  // Email, phone, websites
getProfileAbout(urn)                      // About section & verification
getFullProfile({ username?, urn? })       // Complete profile data in 1 request

// Work & Education
getFullExperience(urn)                    // Complete work history
getCertifications(urn)                    // Professional certifications
getEducation(urn)                         // Education history
getSkills(urn)                            // Skills & endorsements

// Social & Engagement
getSocialMatrix(username)                 // Connections & followers count
getRecommendations(urn)                   // Given & received recommendations
getSimilarProfiles(urn)                   // Similar profile suggestions
getProfileReactions(urn, cursor?)         // All profile reactions
getProfileInterests(urn)                  // Profile interests
getProfileServices(urn)                   // Profile services
getProfileUrn(username)                   // Get URN from username

// Company Search & Info
companyNameLookup(query)                          // Search companies by name
getCompanyInfo({ companyId?, name? })             // Get company details
getSimilarCompanies(companyId)                    // Similar company suggestions
getCompanyEmployeesData(companyId)                // Employee statistics
getCompanyJobs(companyIds, start?)                // Active job listings
getCompanyAffiliatedPages(companyId)              // Subsidiaries & affiliates
getCompanyPosts(companyId, start?)                // Company posts
getCompanyId(universalName)                       // Get ID from universal name
getCompanyDetailsV2(companyId)                    // Extended company info

// Job Search
searchJobs({
  keyword?,              // Job title, skills, or keywords
  location?,             // City, state, or region
  geoId?,                // Geographic ID
  companyIds?,           // Specific company IDs
  jobTypes?,             // full_time, part_time, contract, etc.
  experience?,           // internship, entry_level, mid_senior, etc.
  regions?,              // Region codes
  timePosted?,           // any, 24h, 1week, 1month
  salary?,               // any, 40k, 60k, 80k, 100k, 120k
  workArrangement?,      // onsite, remote, hybrid
  start?                 // Pagination
})

// Job Search V2 (comprehensive)
searchJobsV2({
  keyword?, start?, sortBy?, datePosted?, experience?,
  jobTypes?, workplaceTypes?, salary?, companies?,
  industries?, locations?, functions?, titles?,
  benefits?, commitments?, easyApply?, verifiedJob?,
  under10Applicants?, fairChance?
})

// Job Details
getJobDetails(jobId)                   // Detailed job information
getJobDetailsV2(jobId)                 // All job statuses supported
getSimilarJobs(jobId)                  // Similar job postings
getPeopleAlsoViewedJobs(jobId)         // Related jobs
getHiringTeam(jobId, start?)           // Hiring team members
getProfilePostedJobs(profileUrn, start?, count?)  // Jobs by profile

// Posts
getFeaturedPosts(urn)                             // Featured posts
getAllPosts(urn, cursor?, start?)                 // All posts with pagination
getPostInfo(urn)                                  // Single post details
getPostComments(urn, start?, count?, cursor?)     // Post comments
getPostLikes(urn, start?)                         // Post likes/reactions

getAllComments(urn, cursor?)           // All comments by profile
getCommentLikes(urns, start?)          // Likes on specific comments

// People Search
searchPeople({
  keyword?,
  currentCompany?,
  firstName?,
  geoUrn?,
  industry?,
  lastName?,
  profileLanguage?,
  pastCompany?,
  school?,
  serviceCategory?,
  title?,
  start?
})

// Company Search
searchCompanies({
  keyword?,
  geoUrn?,
  companySize?,    // "1-10", "11-50", "51-200", "201-500", "501-1000", "1001-5000", "5001-10,000", "10,001+"
  hasJobs?,
  industry?,
  start?
})

// Post Search
searchPosts({
  keyword?,
  authorCompany?,
  authorIndustry?,
  authorJobTitle?,
  contentType?,
  datePosted?,
  fromMember?,
  fromOrganization?,
  mentionsMember?,
  mentionsOrganization?,
  sortBy?,
  start?
})

// Other Search
searchServices({ keyword?, geoUrn?, profileLanguage?, serviceCategory?, start? })
searchSchools(keyword?, start?)

getAllArticles(urn, start?)            // All articles by profile
getArticleInfo(url)                    // Article details from URL
getArticleReactions(urn, start?)       // Article likes/reactions

getServiceDetails(vanityname)          // Get service by VanityName
getSimilarServices(vanityname)         // Get similar services

geoNameLookup(query)                   // Search locations & get geo IDs
titleSkillsLookup(query)               // Search skills & job titles
servicesLookup(query)                  // Search service categories

getServiceStatus()                     // Check API service status

📖 Full documentation for all endpoints: linkdapi.com/docs

🚀 More endpoints coming soon! Check our roadmap

💡 Real-World Examples

Example 1: Bulk Profile Enrichment

import { LinkdAPI } from 'linkdapi';

async function enrichLeads(usernames: string[]) {
  const api = new LinkdAPI({ apiKey: 'your_api_key' });

  // Fetch all profiles concurrently
  const profiles = await Promise.all(
    usernames.map(username =>
      api.getProfileOverview(username).catch(err => ({ error: err, username }))
    )
  );

  const enrichedData = [];
  for (let i = 0; i < usernames.length; i++) {
    const profile = profiles[i];
    if (profile.success) {
      const data = profile.data;
      enrichedData.push({
        username: usernames[i],
        name: data.fullName,
        headline: data.headline,
        location: data.location,
        company: data.company
      });
    }
  }

  return enrichedData;
}

// Process 100 leads in seconds instead of minutes
const leads = ['ryanroslansky', 'satyanadella', 'jeffweiner08'];
const data = await enrichLeads(leads);

Example 2: Company Intelligence Dashboard

import { LinkdAPI } from 'linkdapi';

async function getCompanyIntelligence(companyName: string) {
  const api = new LinkdAPI({ apiKey: 'your_api_key' });

  // Get company info
  const companyInfo = await api.getCompanyInfo({ name: companyName });
  const companyId = companyInfo.data.id;

  // Fetch multiple data points concurrently
  const [employees, similar, jobs, affiliates] = await Promise.all([
    api.getCompanyEmployeesData(companyId),
    api.getSimilarCompanies(companyId),
    api.getCompanyJobs(companyId),
    api.getCompanyAffiliatedPages(companyId)
  ]);

  return {
    info: companyInfo,
    employees,
    similar,
    jobs,
    affiliates
  };
}

const intelligence = await getCompanyIntelligence('google');

Example 3: Job Market Analysis

import { LinkdAPI } from 'linkdapi';

async function analyzeJobMarket(role: string, locations: string[]) {
  const api = new LinkdAPI({ apiKey: 'your_api_key' });

  // Search jobs in multiple locations concurrently
  const results = await Promise.all(
    locations.map(location =>
      api.searchJobs({ keyword: role, location, timePosted: '1week' })
    )
  );

  const analysis: Record<string, any> = {};
  for (let i = 0; i < locations.length; i++) {
    const result = results[i];
    if (result.success) {
      const jobs = result.data.jobs;
      analysis[locations[i]] = {
        totalJobs: jobs.length,
        companies: [...new Set(jobs.map((j: any) => j.company))],
        salaryRange: jobs.filter((j: any) => j.salary).map((j: any) => j.salary)
      };
    }
  }

  return analysis;
}

// Analyze "Software Engineer" jobs across 5 cities in parallel
const analysis = await analyzeJobMarket(
  'Software Engineer',
  ['San Francisco, CA', 'New York, NY', 'Austin, TX', 'Seattle, WA', 'Boston, MA']
);

📈 Use Cases

🎯 Lead Generation & Sales

• Profile Enrichment - Enhance lead data with professional profiles
• Company Research - Deep dive into target companies
• Contact Discovery - Find decision makers and key contacts
• Market Intelligence - Analyze competitors and opportunities

📊 Data Analytics & Research

• Market Analysis - Job market trends and salary insights
• Talent Mapping - Identify skill gaps and hiring patterns
• Content Analysis - Track engagement and viral posts
• Network Analysis - Study professional connections

🤖 Automation & Integration

• CRM Integration - Auto-update contact records
• Recruiting Pipelines - Automated candidate sourcing
• Brand Monitoring - Track company mentions and sentiment
• API Development - Build applications using professional data

🔍 Verification & Compliance

• Identity Verification - Validate professional credentials
• Background Checks - Verify employment history
• Email Validation - Confirm email-to-profile matches
• Due Diligence - Research business partnerships

🔧 Error Handling

The SDK provides robust error handling with custom error classes:

import { LinkdAPI, HTTPError, NetworkError, TimeoutError } from 'linkdapi';

async function fetchWithErrorHandling() {
  const api = new LinkdAPI({ apiKey: 'your_api_key' });

  try {
    const profile = await api.getProfileOverview('username');

    if (profile.success) {
      console.log(`Success: ${profile.data}`);
    } else {
      console.log(`API Error: ${profile.message}`);
    }

  } catch (error) {
    if (error instanceof HTTPError) {
      // Handle HTTP errors (4xx, 5xx)
      console.error(`HTTP Error ${error.statusCode}: ${error.responseBody}`);
    } else if (error instanceof TimeoutError) {
      // Handle timeout errors
      console.error(`Timeout: ${error.message}`);
    } else if (error instanceof NetworkError) {
      // Handle network errors
      console.error(`Network Error: ${error.message}`);
    } else {
      // Handle unexpected errors
      console.error(`Unexpected Error: ${error}`);
    }
  }
}

Built-in Retry Mechanism

The client automatically retries failed requests with exponential backoff:

// Configure retry behavior
const api = new LinkdAPI({
  apiKey: 'your_api_key',
  maxRetries: 5,          // Default: 3
  retryDelay: 2000,       // Default: 1000 milliseconds
  timeout: 60000          // Default: 30000 milliseconds
});

// Requests will be retried automatically on failure
const profile = await api.getProfileOverview('username');

🏁 Why Choose LinkdAPI Node.js SDK?

LinkdAPI is more than just an API wrapper—it's a complete solution for professional and company data access:

⚡ Performance First

• Promise.all Support - Up to 40x faster for batch operations
• Zero Dependencies - Lightweight and fast
• Smart Retries - Automatic recovery from transient failures

🛡️ Production Ready

• Type Safety - Full TypeScript support for better IDE experience
• Error Recovery - Comprehensive error handling and retries
• Battle Tested - Used by developers worldwide

🚀 Developer Experience

• ESM & CommonJS - Works with any module system
• Async/Await - Modern JavaScript patterns
• Rich Documentation - Examples for every use case

Whether you're building tools to gather professional profiles, analyze company data, or automate recruiting workflows, LinkdAPI gives you the speed, reliability, and flexibility you need—without the hassle of complicated setups.

🔗 Resources

📚 Documentation & Learning

• 🎓 Getting Started Guide
• 📖 API Documentation

🛠️ Tools & Support

• 🔑 Get API Key
• 💬 Help Center
• 🗺️ Roadmap
• 🐦 Twitter/X

📜 License

MIT License – Free to use for personal and commercial projects.

🌟 Support the Project

If you find LinkdAPI useful, consider:

• ⭐ Starring the project on GitHub
• 🐦 Following us on Twitter/X
• 📢 Sharing with your network
• 💡 Contributing ideas and feedback

Built with ❤️ for developers who need reliable access to professional data

Website • Documentation • Twitter • Support