get_price

Look up the price of a product by SKU.

SERVERA2a Demos SOURCEcapiscio/a2a-demos

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/a2a-demos/get-price.md

WHAT IT DOES

What get_price does on A2a Demos

AI agents call get_price to retrieve information from A2a Demos without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get_price is rated Low

This tool retrieves pricing information based on a product identifier (SKU). It performs a lookup/query without modifying data, executing code, or causing irreversible changes. The sibling tools (cancel_all_orders, place_order) are more sensitive, but this tool itself is a straightforward read operation with minimal risk even if called repeatedly or with unexpected SKUs.

From the tool's definition Tool name is 'get_price' and description states it will 'Look up the price of a product by SKU' — a pure query operation with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_price safely

PolicyLayer is an MCP gateway: it sits between your AI agents and A2a Demos, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_price, this is the rule to start with:

get_price Allowed

get_price is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_price": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect A2a Demos, apply this rule, and every get_price call is checked against it from then on.

FAQ

Questions about get_price

What does the get_price tool do? +

Look up the price of a product by SKU. It is categorised as a Read tool in the A2a Demos MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_price? +

Register the A2a Demos MCP server in PolicyLayer and add a rule for get_price: 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 A2a Demos. Nothing to install.

What risk level is get_price? +

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

Can I rate-limit get_price? +

Yes. Add a rate_limit block to the get_price 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_price completely? +

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

get_price is provided by the A2a Demos MCP server (capiscio/a2a-demos). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on A2a Demos, and thousands of servers like it.

This server

All 3 A2a Demos tools →

Across the catalogue

get_cocktail_by_category on Cocktails RAG MCP Server →get_torrent_detail on M-Team MCP Server →aiva_get_affiliate on AIVA MCP Server →get-chuck-categories on Jokes MCP Server → The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →