search_jlcpcb_parts

Search JLCPCB parts catalog by specifications. Searches the local JLCPCB database (must be downloaded first with download_jlcpcb_database). Provides real pricing, stock info, and library type (Basic parts = free assembly). Use this to find components with exact specifications and cost optimization.

ServerKiCAD-MCP-Server
CategoryRead

How to control search_jlcpcb_parts ↓

WHAT IT DOES

What search_jlcpcb_parts does on KiCAD-MCP-Server

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

THE RISK

Low Risk

Why search_jlcpcb_parts needs a policy

This tool queries a local JLCPCB database to fetch component specifications, pricing, and availability information. No modifications to the PCB design, database, or external systems occur. The blast radius of misuse is minimal—an AI agent could only retrieve unnecessary or irrelevant part information, which has no destructive, financial, or operational impact. Classification as Read is appropriate.

From the tool's definition Tool description states 'Search JLCPCB parts catalog' and 'Provides real pricing, stock info' — it retrieves data from a database without modifying, creating, or deleting anything. The verb 'search' and 'provides' indicate read-only data retrieval.

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

POLICY

How to control search_jlcpcb_parts

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

policy.json

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

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

Create a free account and register KiCAD-MCP-Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More KiCAD-MCP-Server tools

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about search_jlcpcb_parts

What does the search_jlcpcb_parts tool do? +

How do I enforce a policy on search_jlcpcb_parts? +

Register the KiCAD-MCP-Server MCP server in PolicyLayer and add a rule for search_jlcpcb_parts: 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 KiCAD-MCP-Server. Nothing to install.

What risk level is search_jlcpcb_parts? +

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

Can I rate-limit search_jlcpcb_parts? +

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

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

search_jlcpcb_parts is provided by the KiCAD-MCP-Server MCP server (mixelpixx/kicad-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 KiCAD-MCP-Server tool call.

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

CHECK YOUR STACK →

Free to start. No card required.

157 KiCAD-MCP-Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.