Lead Generation API

Powerful B2B Lead Generation API

Integrate our B2B email finder data directly into your own app or CRM software. Scalable, developer-friendly API solutions built for high-volume sales teams.

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Integrate Email Data into Your CRM

Connect LeadStonk to HubSpot, Salesforce, Pipedrive, Zoho, or any custom workflow via our REST API with JSON responses.

LeadStonk REST API - Available Endpoints
GET/v1/email-finderFind email address by name + company domain
POST/v1/email-verifyBulk verify a list of email addresses
GET/v1/domain-searchGet all emails associated with a domain
GET/v1/company-enrichEnrich company profile by domain or name
GET/v1/decision-makersFind decision makers by role, industry, company
GET/v1/maps-leadsScrape Google Maps leads by keyword + location

Scalable Developer Solutions for Lead Generation

Built for developers and growth teams who need reliable, high-volume B2B data access at every stage of the sales funnel.

Secure API Keys

HTTPS/TLS encryption, IP allowlisting, and easy key rotation from your dashboard.

Real-Time Responses

Sub-second API response times with 99.9% uptime SLA for mission-critical workflows.

Flexible Rate Limits

Scale from 1,000 to unlimited API calls per month based on your plan tier.

Global Coverage

Access B2B leads from 195+ countries with consistent REST API responses worldwide.

JSON Responses

Standard REST JSON output compatible with any language: JavaScript, Python, PHP, Ruby.

Full Documentation

Interactive API docs, sandbox environment, and code examples in 3+ languages.

Get Your Free API Key Today

Start with 100 free API calls. No credit card required. Full REST API documentation included.

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Lead Generation API: Frequently Asked Questions

The LeadStonk API allows you to programmatically access all platform features including email finding by domain, email verification, B2B company data enrichment, Google Maps lead scraping, and decision-maker lookup via secure REST API endpoints you can embed into your own app, CRM, or sales workflow.

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