CompareSide-by-Side Comparison
Folderly
AI-powered email deliverability and warmup API.
VS
Instantly.ai
The gold standard for cold email infrastructure and automation.
Folderly
Instantly.ai
API Type
REST
REST
MCP Ready
NO
YES
Free Tier
NO
NO
SDKs
None
None
Webhooks
YES
YES
Capabilities
AI Deliverability Monitoring, Automated Email Warmup, Sender Reputation Analysis, Email Verification, Intent Intelligence
Automate Cold Email, Inbox Warmup, Campaign Analytics, Cold Email Outreach
Folderly
Instantly.ai
API Type
REST
REST
MCP Ready
NO
YES
Free Tier
NO
NO
SDKs
None
None
Webhooks
YES
YES
Capabilities
AI Deliverability Monitoring, Automated Email Warmup, Sender Reputation Analysis, Email Verification, Intent Intelligence
Automate Cold Email, Inbox Warmup, Campaign Analytics, Cold Email Outreach