Integrate B2B contact data, email verification, and company intelligence directly into your product or workflow. A developer-first REST API with real-time enrichment, comprehensive documentation, and SDKs for every major language.
10K req/min
Rate Limit
<200ms
Avg Response
99.99%
Uptime SLA
OpenAPI 3.0
Spec Available
A modern, RESTful API designed for developers who need reliable B2B data at scale.
Clean, predictable RESTful endpoints with JSON request and response bodies. Standard HTTP methods, meaningful status codes, and consistent error handling. Authentication via API key passed as a Bearer token in the Authorization header. Full OpenAPI 3.0 specification available for code generation.
Enrich contacts and companies in real time with sub-200ms response times. Pass an email address, domain, or LinkedIn URL and receive 50+ enriched data fields instantly. Ideal for inline form enrichment, lead routing, and real-time personalization in your product.
Configure webhooks to receive real-time notifications when enrichment jobs complete, contacts change jobs, or company data updates. Push events to any HTTP endpoint with configurable retry logic, signature verification, and event filtering. Never poll for updates again.
Generous rate limits that scale with your plan. Rate limit headers included in every response so you can monitor usage in real time. Burst allowances for batch operations and dedicated rate limits for enterprise customers. Automatic retry-after headers make throttling seamless.
Core endpoints that power contact discovery, enrichment, verification, and company intelligence.
/api/v1/search Search for contacts using advanced filters. Pass job title, company name, industry, location, seniority, company size, tech stack, and more. Returns paginated results with contact details, company information, and confidence scores. Supports bulk searches with up to 100 filter combinations per request.
/api/v1/enrich Enrich a contact by email address or LinkedIn URL. Returns 50+ data fields including name, title, company, phone numbers, social profiles, firmographic data, and technographic data. Response time under 200ms for cached results, under 2 seconds for real-time lookups.
/api/v1/verify Verify an email address for deliverability. Returns validation status (valid, invalid, catch-all, disposable), risk score, SMTP verification result, and MX record details. Supports bulk verification with up to 1,000 emails per request for list cleaning operations.
/api/v1/company Get comprehensive company data by domain name. Returns company name, industry, employee count, revenue range, funding history, technology stack, headquarters location, social profiles, and key decision-makers. Ideal for account-level enrichment and company research.
Start making API calls in minutes.
curl -X POST https://api.the8.ai/v1/search \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"job_title": "VP Sales",
"industry": "SaaS",
"location": "California",
"company_size": "50-200",
"limit": 25
}'Response
{
"data": [
{
"name": "Sarah Chen",
"title": "VP of Sales",
"company": "Acme SaaS Inc.",
"email": "sarah.chen@acmesaas.com",
"email_status": "verified",
"phone": "+1 (415) 555-0142",
"phone_type": "direct_dial",
"linkedin": "linkedin.com/in/sarachen",
"location": "San Francisco, CA"
}
],
"total": 1847,
"credits_used": 1
}Get started quickly with our client libraries.
Python
pip install the8ai Node.js
npm i @the8ai/sdk Ruby
gem install the8ai Go
go get the8.ai/sdk Everything you need to integrate the8.ai into your stack, from official SDKs to interactive documentation.
Complete reference with examples for every endpoint
Official libraries for Python, Node.js, and Ruby
Pre-built requests for every endpoint, ready to test
Real-time event notifications to your endpoints
Generous rate limits that scale with your plan. Every response includes rate limit headers for real-time monitoring.
| Plan | Rate Limit | Burst Allowance | Concurrent Requests |
|---|---|---|---|
| Starter | 100 req/min | 150 req/min | 5 |
| Basic | 500 req/min | 750 req/min | 20 |
| Enterprise | Unlimited | Unlimited | Unlimited |
Start building with the8.ai API today. Get 100 free API credits and full access to every endpoint. No credit card required.
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