Retrieve a list of campaigns
AI agents call get_campaigns to retrieve information from VoIPBin 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 campaign data without creating, modifying, deleting, or executing any operations. It is a standard GET/fetch operation with no capability to change state or trigger external actions.
From the tool's definition Tool name 'get_campaigns' and description 'Retrieve a list of campaigns' indicate a read-only query operation with no side effects.
Attacks that exploit this kind of access
Retrieve a list of campaigns. It is categorised as a Read tool in the VoIPBin MCP Server MCP Server, which means it retrieves data without modifying state.
Register the VoIPBin MCP Server MCP server in PolicyLayer and add a rule for get_campaigns: 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 VoIPBin MCP Server. Nothing to install.
get_campaigns 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_campaigns 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_campaigns. 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_campaigns is provided by the VoIPBin MCP Server MCP server (nrjchnd/voipbin-mcp). 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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