hunter_domain_info
Get email information for a domain from Hunter.io.
This record as markdown: /tools/creativelead-unclick/hunter-domain-info.md
What hunter_domain_info does on UnClick
AI agents call hunter_domain_info to retrieve information from UnClick without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
domain | string | — | |
api_key | string | — |
Parameters from the server's own tool schema.
Why hunter_domain_info is rated Low
This tool retrieves email information about a domain from an external service. It is a read-only operation that queries data without side effects or modifications. However, severity is elevated to medium because email addresses obtained from domain lookups could be used for spam, phishing, or social engineering attacks if misused by an AI agent, despite the tool itself being non-destructive.
From the tool's definition Tool description states 'Get email information for a domain from Hunter.io' - uses verb 'Get' indicating data retrieval with no mention of modification, deletion, or execution.
Risk signalsHandles credentials or secrets (api_key)
Attacks that exploit this kind of access
The rule that runs hunter_domain_info safely
PolicyLayer is an MCP gateway: it sits between your AI agents and UnClick, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For hunter_domain_info, this is the rule to start with:
hunter_domain_info is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect UnClick, apply this rule, and every hunter_domain_info call is checked against it from then on.
Questions about hunter_domain_info
Get email information for a domain from Hunter.io. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
hunter_domain_info accepts 2 parameters: domain, api_key. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for hunter_domain_info: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches UnClick. Nothing to install.
hunter_domain_info is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the hunter_domain_info rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for hunter_domain_info. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
hunter_domain_info is provided by the UnClick MCP server (creativelead/unclick). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on UnClick, and thousands of servers like it.
This server
Across the catalogue