ebay_get_signing_key

Get a specific signing key by ID. Returns public key and metadata (private key is not stored by eBay).

SERVEREbay SOURCEyosefhayim/ebay-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/yosefhayim-ebay-mcp/ebay-get-signing-key.md

WHAT IT DOES

What ebay_get_signing_key does on Ebay

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

RISK

Why ebay_get_signing_key is rated Low

This tool performs a data retrieval operation to fetch public key and metadata associated with a signing key ID. It has no side effects, does not execute operations, does not modify or delete data, and does not involve financial transactions. The clarification that private keys are not returned further confirms this is a safe read operation that simply queries existing key information.

From the tool's definition Tool retrieves a signing key by ID and returns public key and metadata; explicitly states private key is not stored or returned, indicating data retrieval only with no modification or deletion.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs ebay_get_signing_key safely

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

ebay_get_signing_key Allowed

ebay_get_signing_key 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": {
    "ebay_get_signing_key": {}
  }
}

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

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

FAQ

Questions about ebay_get_signing_key

What does the ebay_get_signing_key tool do? +

Get a specific signing key by ID. Returns public key and metadata (private key is not stored by eBay). It is categorised as a Read tool in the Ebay MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on ebay_get_signing_key? +

Register the Ebay MCP server in PolicyLayer and add a rule for ebay_get_signing_key: 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 Ebay. Nothing to install.

What risk level is ebay_get_signing_key? +

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

Can I rate-limit ebay_get_signing_key? +

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

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

ebay_get_signing_key is provided by the Ebay MCP server (yosefhayim/ebay-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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