Get a contact by email address
AI agents call get_contact_by_email to retrieve information from HubSpot MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves contact data based on an email address parameter. It performs a lookup operation without modifying, deleting, or executing any external operations. The verb 'Get' and the informational nature of the operation clearly place it in the Read category.
From the tool's definition Tool name 'get_contact_by_email' and description 'Get a contact by email address' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Get a contact by email address. It is categorised as a Read tool in the HubSpot MCP Server MCP Server, which means it retrieves data without modifying state.
Register the HubSpot MCP Server MCP server in PolicyLayer and add a rule for get_contact_by_email: 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 HubSpot MCP Server. Nothing to install.
get_contact_by_email 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 get_contact_by_email 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 get_contact_by_email. 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.
get_contact_by_email is provided by the HubSpot MCP Server MCP server (sanketskasar/hubspot-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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