ebay_create_shipment_from_shipping_quote
Purchase postage: create a shipment and its shipping label from one rate of a shipping quote (Logistics API createFromShippingQuote). This charges the seller
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What ebay_create_shipment_from_shipping_quote does on Ebay
AI agents use ebay_create_shipment_from_shipping_quote to commit financial operations through Ebay, usually the final step of a payment, billing, or trading workflow. A call moves real money.
Why ebay_create_shipment_from_shipping_quote is rated Critical
Directly charges seller money by purchasing postage and creating shipping labels.
From the tool's definition Purchase postage...charges the seller
Attacks that exploit this kind of access
The rule that runs ebay_create_shipment_from_shipping_quote safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Ebay, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For ebay_create_shipment_from_shipping_quote, this is the rule to start with:
Any call to ebay_create_shipment_from_shipping_quote is blocked until a human approves it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Ebay, apply this rule, and every ebay_create_shipment_from_shipping_quote call is checked against it from then on.
Questions about ebay_create_shipment_from_shipping_quote
Purchase postage: create a shipment and its shipping label from one rate of a shipping quote (Logistics API createFromShippingQuote). This charges the seller. It is categorised as a Financial tool in the Ebay MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Ebay MCP server in PolicyLayer and add a rule for ebay_create_shipment_from_shipping_quote: 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 Ebay. Nothing to install.
ebay_create_shipment_from_shipping_quote 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 ebay_create_shipment_from_shipping_quote 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 ebay_create_shipment_from_shipping_quote. 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.
ebay_create_shipment_from_shipping_quote is provided by the Ebay MCP server (yosefhayim/ebay-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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