Capture payment for an authorized transaction. Use this to claim money that was previously reserved by an authorization.
AI agents use capture_order_payment to commit financial operations through Shopify Graphql — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool directly moves money by capturing (collecting) a previously authorized payment from a customer. This is a financial transaction that commits real funds, making it Financial category with critical severity since misuse could result in unauthorized charges to customers at scale.
From the tool's definition "Capture payment for an authorized transaction. Use this to claim money that was previously reserved by an authorization."
Attacks that exploit this kind of access
Capture payment for an authorized transaction. Use this to claim money that was previously reserved by an authorization. It is categorised as a Financial tool in the Shopify Graphql MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Shopify Graphql MCP server in PolicyLayer and add a rule for capture_order_payment: 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 Shopify Graphql. Nothing to install.
capture_order_payment 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 capture_order_payment 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 capture_order_payment. 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.
capture_order_payment is provided by the Shopify Graphql MCP server (uvu-store/shopify-graphql-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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