Search companies

Search companies

Returns up to 100 companies that match a plain-language description or filters such as headquarters location, industry, headcount and company type, at no credit cost.

Note: Returns no contacts: list each company's people with a domain search. technology, year_founded, similar_to and paging with offset need a Premium plan.

Set up

Use the first option your agent supports.

MCP (official, remote)

Add this server to your agent's MCP settings, then sign in when asked.

{ "mcpServers": { "hunter": { "url": "https://mcp.hunter.io/mcp" } } }

Call the MCP tool Find-Companies.

Server URL: https://mcp.hunter.io/mcp

API (official)

• Base URL: https://api.hunter.io/v2
• Endpoint: POST /discover
• Auth: send the header X-API-Key: $HUNTER_API_KEY
• Get a key: https://hunter.io/api-keys
• Docs: https://hunter.io/api-documentation/v2

Before anything else, confirm access with the cheapest read-only call, like a list or a search. Never send or change anything to test access.

Rules

• Ask the user before anything that sends messages, costs money, or changes data, and say how many records it touches. One approval covers a batch the user has seen.
• Never print API keys.