Get subscription by ID. Returns links.mandate - use get_mandate then get_customer for full details, or use get_subscription_details instead.
AI agents call get_subscription to retrieve information from GoCardless MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves subscription data by ID, returning reference links to related entities (mandates). It performs a read-only operation on payment data with no capability to modify, delete, or execute actions. The low severity reflects that retrieving subscription metadata poses minimal risk even if accessed by an untrusted agent.
From the tool's definition Tool name 'get_subscription' and description 'Get subscription by ID. Returns links.mandate' indicate a retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
Get subscription by ID. Returns links.mandate - use get_mandate then get_customer for full details, or use get_subscription_details instead. It is categorised as a Read tool in the GoCardless MCP Server MCP Server, which means it retrieves data without modifying state.
Register the GoCardless MCP Server MCP server in PolicyLayer and add a rule for get_subscription: 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 GoCardless MCP Server. Nothing to install.
get_subscription 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_subscription 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_subscription. 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_subscription is provided by the GoCardless MCP Server MCP server (jmceleney/gocardless-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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