The Developer-First Lead Generation API

Find, enrich, and qualify B2B leads at scale via API. Search by company, LinkedIn profile, email, or domain. Build powerful lead gen workflows in minutes with our RESTful API.

95%+

Data Accuracy

25,000

API Calls/Month

<200ms

Response Time

RESTful

JSON API

Everything You Need to Build Lead Gen at Scale

A complete API toolkit for finding and enriching B2B leads programmatically

Lead Finder API

Find B2B leads by company name, domain, LinkedIn company URL, or industry. Returns a list of decision-makers with contact information and LinkedIn profiles.

Email Discovery

Find verified professional email addresses for any lead. Pass a LinkedIn URL, name + company, or domain and get a validated email back instantly.

Company Enrichment

Enrich any company with firmographic data: employee count, industry, LinkedIn company page, website, phone number, and tech stack.

Contact Enrichment

Enrich any contact with complete profile data: job title, company, LinkedIn URL, email, phone number, and professional background.

Bulk Processing

Process entire lead lists in one batch API call. Enrich up to 500 leads per request — ideal for high-volume prospecting workflows.

Webhook Support

Set up webhooks to receive enriched lead data in real time as events trigger in your pipeline. Perfect for CRM automation and real-time routing.

Simple API Integration

Find and enrich B2B leads in a single API call

# Find leads at a company by domain
curl -X POST https://api.linkfinderai.com/v1/leads/find \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "domain": "acmecorp.com",
    "role": "sales",
    "seniority": "director"
  }'

# Response
{
  "leads": [
    {
      "name": "Sarah Johnson",
      "title": "Director of Sales",
      "email": "[email protected]",
      "linkedin_url": "https://linkedin.com/in/sarahjohnson",
      "verified": true
    }
  ]
}

API Use Cases

Build any lead generation workflow with our API

Sales Prospecting Tools

Build internal prospecting tools or Chrome extensions that surface qualified leads directly where your reps work.

CRM Auto-Population

Automatically find and enrich new leads in your CRM from just a company name or domain input.

Outbound Automation

Enrich prospect lists before sending cold email campaigns. Higher personalization, better deliverability.

Lead Gen SaaS Products

Power your own SaaS product with our lead generation API. White-label or integrate directly into your platform.

Intent-Based Prospecting

Combine with intent signals to find decision-makers at companies actively researching your category.

Recruitment Tools

Find and enrich candidate profiles at target companies. Build talent pipelines programmatically at scale.

How the Lead Generation API Works

From target to qualified lead in seconds

1

Define Your Target

Pass a company domain, LinkedIn URL, or ICP criteria (industry, size, role) to the API.

2

Find Matching Leads

Our API identifies matching contacts at the target company with verified contact data.

3

Enrich Automatically

Each lead is enriched with email, phone, LinkedIn profile, and company firmographics.

4

Use in Your Workflow

Push enriched leads into your CRM, sequencer, or outreach tool automatically.

Simple, Transparent Pricing

Full lead generation API access. Scale as you grow.

Starter
$29
per month
5,000 API calls/month
  • Lead finder endpoint
  • Email discovery
  • Contact enrichment
  • API documentation
Scale
$149
per month
100,000 API calls/month
  • All Pro features
  • Webhook support
  • Priority support & SLA
  • Custom volume pricing

Start Building Lead Gen Workflows Today

Get instant API access and start finding qualified B2B leads at scale. No credit card required.

Frequently Asked Questions

Our lead generation API lets you find B2B contacts at any company, enrich them with verified email addresses and LinkedIn data, enrich company firmographics, and process all of this in bulk via batch endpoints. You can build prospecting tools, CRM integrations, outbound automation, and more.
The lead finder endpoint accepts company domains, LinkedIn company URLs, and ICP filters like role, seniority, and industry. It returns a list of matching contacts with verified contact data.
We maintain 95%+ accuracy across all data points. Emails are validated for deliverability, LinkedIn data is sourced in real-time, and company data is cross-referenced against multiple authoritative sources.
Yes. Our API is designed for developers and can power any SaaS product, internal tool, or browser extension. Contact us for white-label options and high-volume enterprise pricing.
Our RESTful API works with any language that supports HTTP requests. We provide code examples in Python, JavaScript/Node.js, PHP, Ruby, and more in our API documentation.