ebay_set_user_tokens_with_expiry

Set user access and refresh tokens with custom expiry times. This is an enhanced version of ebay_set_user_tokens that accepts expiry times and can automatically refresh the access token if it

SERVEREbay SOURCEyosefhayim/ebay-mcp

Medium RISK CLASS

Category Write

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-set-user-tokens-with-expiry.md

WHAT IT DOES

What ebay_set_user_tokens_with_expiry does on Ebay

AI agents use ebay_set_user_tokens_with_expiry to create or update resources in Ebay, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ebay environment.

RISK

Why ebay_set_user_tokens_with_expiry is rated Medium

This tool writes/modifies user authentication tokens, which are fundamental to account access and security. Misuse could allow an attacker to persist unauthorized access, hijack user sessions, or escalate privileges.

From the tool's definition Tool name 'ebay_set_user_tokens_with_expiry' and description 'Set user access and refresh tokens with custom expiry times' indicates this tool modifies authentication credentials.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs ebay_set_user_tokens_with_expiry 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_set_user_tokens_with_expiry, this is the rule to start with:

ebay_set_user_tokens_with_expiry Rate-limited

ebay_set_user_tokens_with_expiry stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "ebay_set_user_tokens_with_expiry": {
      "limits": [
        {
          "counter": "ebay_set_user_tokens_with_expiry_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about ebay_set_user_tokens_with_expiry

What does the ebay_set_user_tokens_with_expiry tool do? +

Set user access and refresh tokens with custom expiry times. This is an enhanced version of ebay_set_user_tokens that accepts expiry times and can automatically refresh the access token if it. It is categorised as a Write tool in the Ebay MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on ebay_set_user_tokens_with_expiry? +

Register the Ebay MCP server in PolicyLayer and add a rule for ebay_set_user_tokens_with_expiry: 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_set_user_tokens_with_expiry? +

ebay_set_user_tokens_with_expiry is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit ebay_set_user_tokens_with_expiry? +

Yes. Add a rate_limit block to the ebay_set_user_tokens_with_expiry 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_set_user_tokens_with_expiry completely? +

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

ebay_set_user_tokens_with_expiry 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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