CompareSide-by-Side Comparison
Hunter.io
The standard for finding and verifying professional email addresses.
VS
Kaspr
LinkedIn-first B2B contact data retrieval and prospecting tool.
Hunter.io
Kaspr
API Type
REST
REST
MCP Ready
YES
NO
Free Tier
NO
YES
SDKs
Python, Node.js, Ruby, Go, PHP
None
Webhooks
YES
YES
Capabilities
Email Finder, Email Verifier, Domain Search, Lead Enrichment, B2B Data Enrichment
LinkedIn Data Extraction, B2B Contact Retrieval, CRM Data Enrichment, LinkedIn Automation, Web Scraping, CRM Automation, B2B Data Enrichment
Hunter.io
Kaspr
API Type
REST
REST
MCP Ready
YES
NO
Free Tier
NO
YES
SDKs
Python, Node.js, Ruby, Go, PHP
None
Webhooks
YES
YES
Capabilities
Email Finder, Email Verifier, Domain Search, Lead Enrichment, B2B Data Enrichment
LinkedIn Data Extraction, B2B Contact Retrieval, CRM Data Enrichment, LinkedIn Automation, Web Scraping, CRM Automation, B2B Data Enrichment
API & MCP Analysis
For AI-native operators choosing between Hunter.io and Kaspr, 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. Kaspr requires a REST API integration, which means your agent needs the API docs to build the connection.
Hunter.io Starter Prompt
"Claude, use Hunter API to find the professional email for the CEO of Stripe."
Kaspr Starter Prompt
"Claude, use Kaspr to find the contact info for the VP of Sales at any company I provide a LinkedIn URL for."
Support & Guidance
Hunter.io vs Kaspr FAQ
01
Which has a better API for AI agents — Hunter.io or Kaspr?
Hunter.io offers an MCP server for direct AI agent integration. Kaspr provides a REST API. Check the comparison table above for a full breakdown of SDKs, webhooks, and capabilities.
02
Can I connect Hunter.io or Kaspr to Claude or Cursor?
Hunter.io has an official MCP server for direct connection. For Kaspr, you can use the REST API docs with your AI agent.
03
Hunter.io vs Kaspr — which is better for sales automation?
It depends on your stack. Hunter.io is "The standard for finding and verifying professional email addresses." while Kaspr is "LinkedIn-first B2B contact data retrieval and prospecting tool.". Compare their API capabilities, MCP support, and pricing above to find the right fit for your workflow.