List all available association types for a given object type pair
AI agents call crm_list_association_types to retrieve information from HubSpot MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves association type definitions for object pairs, which is a read-only query operation. It has no side effects, does not modify data, and presents no blast radius if misused by an AI agent. Listing available metadata is a safe informational operation.
From the tool's definition Tool name contains 'list' and description states 'List all available association types' — a query operation that retrieves metadata about associations without modifying data.
Documented attack patterns abuse exactly the kind of access crm_list_association_types gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and HubSpot MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for crm_list_association_types:
{
"version": "1",
"default": "deny",
"tools": {
"crm_list_association_types": {}
}
}crm_list_association_types is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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List all available association types for a given object type pair. It is categorised as a Read tool in the HubSpot MCP MCP Server, which means it retrieves data without modifying state.
Register the HubSpot MCP server in PolicyLayer and add a rule for crm_list_association_types: 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. Nothing to install.
crm_list_association_types 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 crm_list_association_types 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 crm_list_association_types. 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.
crm_list_association_types is provided by the HubSpot MCP server (shinzo-labs/hubspot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 112 HubSpot MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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112 HubSpot MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.