Gets a call by ID
AI agents call get_call to retrieve information from RetellAI 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 information about an existing call using its ID. It performs a read-only query with no capability to modify, delete, or execute actions. The action is non-destructive and returns data only, fitting squarely into the Read category with low severity.
From the tool's definition Tool name is 'get_call' and description states 'Gets a call by ID' — a retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
Gets a call by ID. It is categorised as a Read tool in the RetellAI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the RetellAI MCP Server MCP server in PolicyLayer and add a rule for get_call: 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 RetellAI MCP Server. Nothing to install.
get_call 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_call 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_call. 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_call is provided by the RetellAI MCP Server MCP server (kuba2290/abhaybabbar_retellai-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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