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Cursor Agent 52964395e4 Add Hunter third-party MCP plugin with API key header auth
Package Hunter's hosted Streamable HTTP MCP server
(https://mcp.hunter.io/mcp) using the official Cursor setup from
https://hunter.io/agents.md: X-API-Key with ${HUNTER_API_KEY}.

This is a fresh-from-main take on #317, which used OAuth-only config
and documented the API key as an opt-in alternative. Official Cursor
packaging is header auth, so plugin.json declares the HUNTER_API_KEY
template variable the same way other BYO-credential plugins do.

Co-authored-by: Sam Sokolin <SamSokolin@users.noreply.github.com>
2026-09-08 23:10:37 +00:00
..

Hunter

Cursor plugin that connects agents to Hunter through Hunter's official remote Model Context Protocol server.

Find and verify professional email addresses, list the contacts behind any company domain, discover companies that match a profile, enrich people and companies, and save contacts as leads.

Official Cursor setup: https://hunter.io/agents.md

Install

  1. Open Cursor Settings → Plugins.
  2. Search for Hunter.
  3. Click Install, then set your Hunter API key (below).

Or run /add-plugin hunter in chat.

MCP

{
  "mcpServers": {
    "hunter": {
      "type": "http",
      "url": "https://mcp.hunter.io/mcp",
      "headers": {
        "X-API-Key": "${HUNTER_API_KEY}"
      }
    }
  }
}

Auth is a Hunter API key sent in an X-API-Key header. Create one at https://hunter.io/api-keys (Free plan is enough), then set it in Dashboard → Plugins → Configure. Do not commit the key.

Before you connect

You need a Hunter account and an API key. The MCP server is available on all Hunter plans, including the free plan, and uses the plan and credits attached to that key.

What agents can do

Category Capabilities
Discover Find companies by industry, size, location, technology, and more, or describe the target in natural language (free, no credits)
Domain Search List the people and email addresses behind a company domain, with department and seniority filters
Email Finder Find a professional's most likely email address from a name and company or domain
Email Verifier Check whether an email address is deliverable and see its confidence score and sources
Enrichment Pull person and company data from an email address or domain
Leads Create, update, and organize leads and lead lists; push leads to a connected CRM
Campaigns Add recipients to campaigns and start outreach sequences

The hosted runtime is the source of truth for tool names and schemas.

Notes

  • Tool calls run with the permissions and credits attached to the API key. Domain Search, Email Finder, Email Verifier, and Enrichment calls cost credits the same way they do in the Hunter app; Discover is free.
  • This plugin follows Hunter's official Cursor packaging: Streamable HTTP at https://mcp.hunter.io/mcp with X-API-Key. Hunter also documents OAuth for some clients; do not use OAuth for this plugin.
  • Hunter's test-api-key only works against the REST API; the MCP server rejects it with a 401.
  • The hunter-io/hunter-mcp GitHub repository is Hunter's old local (stdio) server and is archived. Hunter directs all clients to the remote server above.

Docs

Logo is Hunter's official fox mark, from the hunter-io GitHub organization.

License

MIT