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Hunter MCP Integration for Claude Agent SDK
Connect Hunter to Claude Agent SDK through the local KosmoKrator MCP gateway with scoped tools, credentials, and write policy.
Connect Hunter to Claude Agent SDK
Give Claude Agent SDK workflows access to KosmoKrator integrations through a local MCP server.
Add a KosmoKrator stdio MCP server to the Claude Agent SDK options. The gateway is local, scoped to this integration, and starts with
--write=deny so Claude Agent SDK can inspect read-capable tools without receiving write access by default.
Hunter MCP Config for Claude Agent SDK
Use a narrow integration list so the agent does not load unrelated tools.
{
"mcpServers": {
"kosmokrator-hunter": {
"type": "stdio",
"command": "kosmo",
"args": [
"mcp:serve",
"--integration=hunter",
"--write=deny"
]
}
}
}Run the Gateway Manually
kosmokrator mcp:serve --integration=hunter --write=denyWhy Use KosmoKrator Here
Expose only Hunter instead of a broad multi-service tool list.
Reuse credentials already configured for the KosmoKrator CLI and Lua runtime.
Start read-only, then opt into ask or allow for trusted workspaces.
Hunter Tools Visible to Claude Agent SDK
Claude Agent SDK sees stable MCP tool names generated from the Hunter integration catalog.
| MCP tool | Source function | Type | Description |
|---|---|---|---|
integration__hunter__hunter_domain_search | hunter.hunter_domain_search | Read | Search for professional email addresses associated with a domain. Returns email addresses found for the company, along with contact names, positions, and social profiles. Supports filtering by email type (personal or generic). |
integration__hunter__hunter_email_finder | hunter.hunter_email_finder | Read | Find the most likely professional email address for a person based on their name and company domain. Returns the email with a confidence score and sources where the email was found. |
integration__hunter__hunter_email_verifier | hunter.hunter_email_verifier | Read | Verify the deliverability of an email address. Checks whether the email is valid, the mailbox exists, and accepts mail. Returns a result status (deliverable, undeliverable, risky, or unknown) along with confidence scores and SMTP details. |
integration__hunter__hunter_email_count | hunter.hunter_email_count | Read | Get the total number of email addresses Hunter.io has found for a domain. Returns counts broken down by email type (personal, generic) and department. This endpoint does not consume API credits. |
integration__hunter__hunter_list_leads | hunter.hunter_list_leads | Read | List leads stored in your Hunter.io account. Supports pagination with limit and offset parameters. Returns lead details including email, name, and associated lists. |
integration__hunter__hunter_get_lead | hunter.hunter_get_lead | Read | Retrieve detailed information about a single lead by its ID. Returns the lead's email address, name, company, and any associated lists or custom fields. |
integration__hunter__hunter_create_lead | hunter.hunter_create_lead | Write | Create a new lead in Hunter.io. Requires an email address. Optionally include first name, last name, and a list ID to add the lead to a specific lead list. Returns the created lead object with its ID. |
integration__hunter__hunter_get_current_user | hunter.hunter_get_current_user | Read | Get information about the authenticated Hunter.io account, including the user's name, email, plan details, and API usage (requests made and remaining). Useful for verifying the API key works and checking usage limits. |