CompareSide-by-Side Comparison
ContactOut
Phone numbers and emails from LinkedIn profiles.
VS
Hunter.io
The standard for finding and verifying professional email addresses.
ContactOut
Hunter.io
API Type
REST
REST
MCP Ready
NO
YES
Free Tier
YES
NO
SDKs
Python, Node.js
Python, Node.js, Ruby, Go, PHP
Webhooks
YES
YES
Capabilities
Phone Number Lookup, Email Discovery, LinkedIn Profile Search, AI Voice & Dialers, LinkedIn Automation
Email Finder, Email Verifier, Domain Search, Lead Enrichment, B2B Data Enrichment
ContactOut
Hunter.io
API Type
REST
REST
MCP Ready
NO
YES
Free Tier
YES
NO
SDKs
Python, Node.js
Python, Node.js, Ruby, Go, PHP
Webhooks
YES
YES
Capabilities
Phone Number Lookup, Email Discovery, LinkedIn Profile Search, AI Voice & Dialers, LinkedIn Automation
Email Finder, Email Verifier, Domain Search, Lead Enrichment, B2B Data Enrichment
API & MCP Analysis
For AI-native operators choosing between ContactOut and Hunter.io, the decision comes down to API accessibility and how easily your agent can interface with each tool.
Hunter.io has the edge here with an official MCP server, letting you connect it directly to Claude or Cursor. ContactOut requires a REST API integration, which means your agent needs the API docs to build the connection.
ContactOut Starter Prompt
"Claude, use ContactOut API to find phone numbers for these 10 LinkedIn profiles."
Hunter.io Starter Prompt
"Claude, use Hunter API to find the professional email for the CEO of Stripe."
Support & Guidance
ContactOut vs Hunter.io FAQ
01
Which has a better API for AI agents — ContactOut or Hunter.io?
ContactOut provides a REST API. Hunter.io also offers an MCP server. Check the comparison table above for a full breakdown of SDKs, webhooks, and capabilities.
02
Can I connect ContactOut or Hunter.io to Claude or Cursor?
Hunter.io has an official MCP server for direct connection. For ContactOut, you can use the REST API docs with your AI agent.
03
ContactOut vs Hunter.io — which is better for sales automation?
It depends on your stack. ContactOut is "Phone numbers and emails from LinkedIn profiles." while Hunter.io is "The standard for finding and verifying professional email addresses.". Compare their API capabilities, MCP support, and pricing above to find the right fit for your workflow.