Open an MPP payment channel against the pay.sh proxy.
AI agents use robot_open_payshell_session to commit financial operations through Execution Market — usually the final step of a payment, billing, or trading workflow. A call moves real money.
Opening a payment channel is a financial primitive: it locks funds into a channel contract and establishes the conduit through which USDC payments will flow. On a platform explicitly described as handling 'Gasless USDC payments via x402,' initiating a payment channel session is a Financial action. Misuse could result in unauthorized fund commitments or exposure of payment channel funds.
From the tool's definition 'Open an MPP payment channel against the pay.sh proxy' — opening a payment channel directly involves committing financial infrastructure and enabling fund flows via USDC payments
Attacks that exploit this kind of access
Open an MPP payment channel against the pay.sh proxy. It is categorised as a Financial tool in the Execution Market MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Execution Market MCP server in PolicyLayer and add a rule for robot_open_payshell_session: 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 Execution Market. Nothing to install.
robot_open_payshell_session 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 robot_open_payshell_session 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 robot_open_payshell_session. 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.
robot_open_payshell_session is provided by the Execution Market MCP server (https://mcp.execution.market/mcp/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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