Side-by-Side Model Context Protocol Comparison
Hunter vs Klaviyo
In-depth architectural comparison of the Hunter and Klaviyo MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Hunter
Communication · Local stdio
Quality: 44/100 (Fair) | Auth: No auth required
Klaviyo
Communication · Local stdio
Quality: 44/100 (Fair) | Auth: No auth required
Verdict Summary: Choose Hunter if you need specialized Communication tools running via a local process. Choose Klaviyo if your workspace requires Communication integration with local subprocess execution. Both servers can be configured concurrently in your client's
mcpServers manifest.Which MCP Server Should You Choose?
H
Choose Hunter when:
- You need dedicated capabilities in the Communication domain.
- You prefer local stdio subprocess transport architecture.
- Your security boundary fits: No auth required (Free / Open Source).
- Primary tools included: domain_search, email_finder, email_verifier.
K
Choose Klaviyo when:
- You need dedicated capabilities in the Communication domain.
- You prefer local stdio subprocess transport architecture.
- Your security boundary fits: No auth required (Free / Open Source).
- Primary tools included: klaviyo_list_profiles, klaviyo_get_profile, klaviyo_list_lists.
Feature & Specification Comparison
Tools & Capabilities Breakdown
Hunter Tools (3)
domain_search
Find email addresses for a domain on Hunter.io. Returns the email pattern plus a list of professional/work emails with names, positions, departments, and confidence scores. Example: domain_search({ domain: "stripe.com" })
email_finder
Find the most likely professional/work email address for a specific person at a domain on Hunter.io. Returns the email, a confidence score, position, and the number of corroborating sources. Example: email_finder({ domain: "stripe.com", first_name: "Patrick", last_name: "Collison" })
email_verifier
Verify an email address with Hunter.io email verification. Checks deliverability, MX records, SMTP, and whether the address is disposable or webmail. Returns a status, result, and confidence score. Example: email_verifier({ email: "patrick@stripe.com" })
Klaviyo Tools (5)
klaviyo_list_profiles
Search contacts by email, name, or custom attributes. Returns profile IDs, emails, names, and properties with pagination support.
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Hunter Configuration
Klaviyo Configuration