Low Risk

get_schema

Get the OpenAPI3 schema for the Financial Reports API.

How to control get_schema ↓

What get_schema does on Financial Reports MCP Server

AI agents call get_schema to retrieve information from Financial Reports MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why get_schema needs a policy

This is purely a Read operation that queries and returns structured metadata describing API endpoints and their specifications. It has no capability to create, modify, or delete data, and does not execute external operations or create financial obligations. The blast radius of exposing this schema is minimal—it provides publicly-intended API documentation.

From the tool's definition The tool retrieves the OpenAPI3 schema via 'Get the OpenAPI3 schema for the Financial Reports API'. Schema documents are informational metadata about API endpoints, with no side effects or capability to modify, delete, or execute operations.

Documented attack patterns abuse exactly the kind of access get_schema gives an agent:

How to control get_schema

PolicyLayer is an MCP gateway — it sits between your AI agents and Financial Reports MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_schema:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_schema": {}
  }
}

get_schema is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Financial Reports MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
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Related tools and policies

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Questions about get_schema

What does the get_schema tool do? +

Get the OpenAPI3 schema for the Financial Reports API. It is categorised as a Read tool in the Financial Reports MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_schema? +

Register the Financial Reports MCP Server MCP server in PolicyLayer and add a rule for get_schema: 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 Financial Reports MCP Server. Nothing to install.

What risk level is get_schema? +

get_schema is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_schema? +

Yes. Add a rate_limit block to the get_schema 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 get_schema completely? +

Set action: deny in the PolicyLayer policy for get_schema. 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 get_schema? +

get_schema is provided by the Financial Reports MCP Server MCP server (itisaevalex/financial-reports-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Financial Reports MCP Server tool call.

Start from Financial Reports MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

18 Financial Reports MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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