ebay_refresh_access_token

SERVEREbay SOURCEyosefhayim/ebay-mcp

Low RISK CLASS

Category Other

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/yosefhayim-ebay-mcp/ebay-refresh-access-token.md

WHAT IT DOES

What ebay_refresh_access_token does on Ebay

AI agents call ebay_refresh_access_token as a supporting operation in Ebay workflows.

RISK

Why ebay_refresh_access_token is rated Low

This tool performs an OAuth token refresh operation. It doesn't read user data, write/modify business data, execute code, destroy data, or move money. It purely manages authentication credentials by exchanging a refresh token for a new access token — an authentication/session management operation that doesn't fit neatly into the other categories.

From the tool's definition Manually refresh the user access token using the stored refresh token... Returns the new access token and expiry time.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs ebay_refresh_access_token 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_refresh_access_token, this is the rule to start with:

ebay_refresh_access_token Rate-limited

ebay_refresh_access_token gets a rate cap, and everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "ebay_refresh_access_token": {
      "limits": [
        {
          "counter": "ebay_refresh_access_token_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

SET A RULE FOR THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about ebay_refresh_access_token

What does the ebay_refresh_access_token tool do? +

Manually refresh the user access token using the stored refresh token. This is useful when you want to proactively refresh an access token before it expires, or when recovering from authentication errors. Requires that user tokens are already set (either via EBAY_USER_REFRESH_TOKEN in .env or via ebay_set_user_tokens_with_expiry). Returns the new access token and expiry time. It is categorised as a Other tool in the Ebay MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on ebay_refresh_access_token? +

Register the Ebay MCP server in PolicyLayer and add a rule for ebay_refresh_access_token: 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_refresh_access_token? +

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

Can I rate-limit ebay_refresh_access_token? +

Yes. Add a rate_limit block to the ebay_refresh_access_token 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_refresh_access_token completely? +

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

ebay_refresh_access_token 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.

KEEP EXPLORING

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