Seamless.AI
Data Enrichment & IntentAI-powered B2B sales intelligence platform providing verified contact data, buyer intent signals, and automated outreach for revenue teams.
Seamless.AI is a comprehensive B2B sales intelligence platform offering access to 1.8B+ verified business emails and 414M+ mobile numbers with real-time data updates. The platform combines prospecting, enrichment, buyer intent detection, and AI-powered outreach automation through its Data Engine, Engagement Hub, and AI Agents. It includes a Chrome extension for in-context prospecting, native CRM integrations for bidirectional sync, and compliance with GDPR, CCPA, SOC 2 Type II, and ISO 27001 standards.
Best for
Sales and RevOps teams needing large-scale B2B contact discovery and enrichment with automated outreach workflows and real-time buyer intent signals.
Last updated: March 21, 2026
25/50
Overall Score
API Quality
7/10
GTM Relevance
18/20
PricingFreemium
Complexitymedium
Learningmedium
Visit seamless.ai →API Analysis
REST API
✓
Available
Webhooks
✓
Available
GraphQL
—
—
OAuth
✓
Available
salesforcehubspotoutreachsalesloftzapierpipedrivelinkedin
Pricing
freemiumFree Tier
Free tier with limited credits; paid plans tiered by features, seats, and usage credits for searches and enrichment
Strengths & Weaknesses
Strengths
Massive database with 1.8B+ verified emails and 414M+ phone numbers with continuous real-time updates
Chrome extension enables in-context prospecting directly on LinkedIn and company websites without switching tools
AI Agents automate repetitive workflows including outbound prioritization, inbound response, CRM cleaning, and churn prevention
Strong enterprise security posture with SOC 2 Type II, ISO 27001, GDPR and CCPA compliance
Native CRM integrations with bidirectional sync, field mapping, and deduplication rules for Salesforce and HubSpot
Weaknesses
Credit-based consumption model can make cost prediction difficult for high-volume use cases
Data accuracy varies significantly by region, industry, and company size with strongest coverage in US markets
API documentation and SDK support is limited compared to enterprise alternatives like ZoomInfo
Verification processes improve but don't guarantee deliverability; users report needing additional validation layers
Alternatives
Reviews
Links
FAQ
What is Seamless.AI?
Seamless.AI is a comprehensive B2B sales intelligence platform offering access to 1.8B+ verified business emails and 414M+ mobile numbers with real-time data updates. The platform combines prospecting, enrichment, buyer intent detection, and AI-powered outreach automation through its Data Engine, Engagement Hub, and AI Agents. It includes a Chrome extension for in-context prospecting, native CRM integrations for bidirectional sync, and compliance with GDPR, CCPA, SOC 2 Type II, and ISO 27001 standards.
Is Seamless.AI free?
Yes, Seamless.AI offers a free tier. Free tier with limited credits; paid plans tiered by features, seats, and usage credits for searches and enrichment
What are Seamless.AI alternatives?
Popular alternatives to Seamless.AI include Apollo.io, Cognism, Clay, Hunter, Snov.io, Clearout. Compare features, API quality, and pricing on GTM Tools.
Does Seamless.AI have an API?
Yes, Seamless.AI provides a REST API. API quality is rated GOOD. Documentation: https://seamless.ai/api.
Who is Seamless.AI best for?
Sales and RevOps teams needing large-scale B2B contact discovery and enrichment with automated outreach workflows and real-time buyer intent signals.