SDK Directory
Ruby Sales APIs
Official Ruby packages for building sales workflows. Use these libraries to avoid writing raw HTTP boilerplate.
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Crawlbase
Enterprise web scraping API with smart proxy rotation and JavaScript rendering.
Hunter.io
The standard for finding and verifying professional email addresses.
Argyle
The leading employment data platform for income and employment verification.
Zendesk Sell
Sales CRM designed to increase productivity and pipeline visibility.
Trestle IQ
Phone verification and reverse phone lookup API for lead validation.
Pipl
Identity verification and people search API for trust and safety.
DocuSign
Enterprise e-signature and agreement cloud API.
PandaDoc
API for document generation, e-signatures, and tracking.
People Data Labs
B2B data API with 3 billion person and company records.
Mattermark
Data-driven platform for discovering and analyzing high-growth companies.
HubSpot
All-in-one CRM platform with an extensive API ecosystem.
Clearbit (Breeze)
Real-time company and person enrichment API by HubSpot.
CUFinder
B2B data enrichment API with 20+ endpoints for company and person data.
Emailable
Fast email verification API with 99.9% accuracy and instant results.
ZeroBounce
Email validation API with detailed deliverability scoring and abuse detection.
Neverbounce
Email verification API with AI-powered validation and real-time checking.
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