List subscribers for your publication with pagination. Requires API key.
AI agents call list-subscribers to retrieve information from Paragraph MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves subscriber information from a publication using pagination. There is no data modification, deletion, or execution of external operations. It is a straightforward query operation that returns subscriber data. The requirement for an API key is a standard authentication mechanism and does not elevate the risk category.
From the tool's definition Tool name 'list-subscribers' and description 'List subscribers' indicates data retrieval. The verb 'list' is a classic Read operation that queries and returns existing data with no modifications or side effects.
Attacks that exploit this kind of access
List subscribers for your publication with pagination. Requires API key. It is categorised as a Read tool in the Paragraph MCP MCP Server, which means it retrieves data without modifying state.
Register the Paragraph MCP server in PolicyLayer and add a rule for list-subscribers: 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 Paragraph MCP. Nothing to install.
list-subscribers 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 list-subscribers 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 list-subscribers. 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.
list-subscribers is provided by the Paragraph MCP server (paragraph-xyz/paragraph-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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