schwab_option_buy_to_open

Buy an option to open a position (Schwab).

SERVEROpen Stocks MCP SOURCEopen-agent-tools/open-stocks-mcp

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/open-agent-tools-open-stocks-mcp/schwab-option-buy-to-open.md

WHAT IT DOES

What schwab_option_buy_to_open does on Open Stocks MCP

AI agents use schwab_option_buy_to_open to commit financial operations through Open Stocks MCP, usually the final step of a payment, billing, or trading workflow. A call moves real money.

RISK

Why schwab_option_buy_to_open is rated Critical

This tool executes a real financial transaction — purchasing an options contract through the Schwab brokerage API. Options trading involves significant financial exposure and commitment of real capital. Misuse could result in large, potentially irreversible financial losses.

From the tool's definition Buy an option to open a position (Schwab)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs schwab_option_buy_to_open safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Open Stocks MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For schwab_option_buy_to_open, this is the rule to start with:

schwab_option_buy_to_open Approval-gated

Any call to schwab_option_buy_to_open is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "schwab_option_buy_to_open": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Open Stocks MCP, apply this rule, and every schwab_option_buy_to_open call is checked against it from then on.

FAQ

Questions about schwab_option_buy_to_open

What does the schwab_option_buy_to_open tool do? +

Buy an option to open a position (Schwab). It is categorised as a Financial tool in the Open Stocks MCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on schwab_option_buy_to_open? +

Register the Open Stocks MCP server in PolicyLayer and add a rule for schwab_option_buy_to_open: 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 Open Stocks MCP. Nothing to install.

What risk level is schwab_option_buy_to_open? +

schwab_option_buy_to_open is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit schwab_option_buy_to_open? +

Yes. Add a rate_limit block to the schwab_option_buy_to_open 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.

How do I block schwab_option_buy_to_open completely? +

Set action: deny in the PolicyLayer policy for schwab_option_buy_to_open. 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.

What MCP server provides schwab_option_buy_to_open? +

schwab_option_buy_to_open is provided by the Open Stocks MCP server (open-agent-tools/open-stocks-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Open Stocks, and thousands of servers like it.

This server

All 152 Open Stocks tools → Critical-risk tools on this server →

Across the catalogue

buy_now on Ebay → All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern MCP payment tools →Human-in-the-loop →Tool call approval →