[FacturaHub] Generate a checkout link to upgrade plan.
AI agents use upgrade_plan to commit financial operations through FacturaHub MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.
Upgrading a plan involves entering a checkout/payment flow that can result in financial charges or subscription commitments. Even if it only generates a link rather than completing a transaction directly, it initiates a financial obligation process, placing it firmly in the Financial category. Misuse could result in unauthorized plan upgrades and charges.
From the tool's definition "Generate a checkout link to upgrade plan" — initiates a plan upgrade flow that commits financial obligations (subscription upgrade purchase).
Attacks that exploit this kind of access
[FacturaHub] Generate a checkout link to upgrade plan. It is categorised as a Financial tool in the FacturaHub MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the FacturaHub MCP Server MCP server in PolicyLayer and add a rule for upgrade_plan: 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 FacturaHub MCP Server. Nothing to install.
upgrade_plan is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the upgrade_plan 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 upgrade_plan. 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.
upgrade_plan is provided by the FacturaHub MCP Server MCP server (santy1422/facturahub-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.
Teams ship this data inside their own products. See what a licence covers →