Start a continuous streaming payment to another wallet. Funds flow in real-time, second by second. Use for ongoing services, rent, or time-based work.
AI agents use open_stream to commit financial operations through Remit Md MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool initiates a real-time, continuous transfer of funds to an external wallet. It directly moves money on an ongoing basis, making it a Financial category tool. The blast radius is critical because a misuse could result in continuous, second-by-second financial losses that may be difficult to stop once initiated, and the funds transferred may be irrecoverable.
From the tool's definition Start a continuous streaming payment to another wallet. Funds flow in real-time, second by second.
Attacks that exploit this kind of access
Start a continuous streaming payment to another wallet. Funds flow in real-time, second by second. Use for ongoing services, rent, or time-based work. It is categorised as a Financial tool in the Remit Md MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Remit Md MCP Server MCP server in PolicyLayer and add a rule for open_stream: 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 Remit Md MCP Server. Nothing to install.
open_stream 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 open_stream 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 open_stream. 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.
open_stream is provided by the Remit Md MCP Server MCP server (pay-skill/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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