List contacts with optional filtering
AI agents call bitrix24_list_contacts to retrieve information from Bitrix24 MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves or queries contact data from Bitrix24 CRM without creating, modifying, or deleting any records. The optional filtering applies only to the retrieval query, not to the data itself. There are no side effects or state changes. This is a straightforward Read operation with minimal risk.
From the tool's definition Tool name contains 'list' and description states 'List contacts with optional filtering' — both indicate data retrieval with no modifications.
Attacks that exploit this kind of access
List contacts with optional filtering. It is categorised as a Read tool in the Bitrix24 MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Bitrix24 MCP Server MCP server in PolicyLayer and add a rule for bitrix24_list_contacts: 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 Bitrix24 MCP Server. Nothing to install.
bitrix24_list_contacts 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 bitrix24_list_contacts 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 bitrix24_list_contacts. 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.
bitrix24_list_contacts is provided by the Bitrix24 MCP Server MCP server (maxli53/mcp_bitrix). 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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