ebay_clear_tokens

THE RISK

Critical Risk

Clearing all OAuth tokens is a destructive action that cannot be automatically undone—it permanently invalidates authentication state and severs API access. While technically recoverable through re-authentication, the immediate effect is irreversible deletion of security credentials. This is more severe than Write (which is reversible modification) and constitutes destruction of critical authentication material.

From the tool's definition Tool name 'ebay_clear_tokens' with description stating it 'Clear[s] all stored OAuth tokens'. This irreversibly removes authentication credentials, preventing subsequent API operations until re-authentication occurs.

Risk signalsBulk/mass operation — affects multiple targets

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

HOW TO CONTROL EBAY_CLEAR_TOKENS

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

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "ebay_clear_tokens"
  ]
}

ebay_clear_tokens disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

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

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

More Ebay tools

Financial ebay_issue_refund Issue a full or partial refund for an eBay order. Use this to refund buyers for orders, in Financial ebay_withdraw_offer Withdraw a published offer Financial ebay_withdraw_offer_by_inventory_item_group Withdraw an offer for an inventory item group (variation listing).\n\nRequired OAuth Scope Financial ebay_accept_payment_dispute Accept a payment dispute and allow eBay to refund the buyer. Use this when you agree with Financial ebay_opt_in_to_payments_program Opt-in to a payments program Financial ebay_register_client Register a third party financial application with eBay (Open Banking / PSD2). Requires val Destructive ebay_bulk_cancel_packages Cancel multiple packages in one request Destructive ebay_bulk_delete_ad_group_negative_keywords Delete multiple ad group-level negative keywords.

All 332 Ebay tools →

Destructive tools on other servers

Frida Game Hacking MCP clear_scan MegaMemory remove_concept Frida Agent MCP kill_app 1MCP Server mcp_uninstall

Go deeper

Critical-risk tools in Ebay → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

What does the ebay_clear_tokens tool do? +

Clear all stored OAuth tokens (both user tokens and client credentials). This will require re-authentication for subsequent API calls. It is categorised as a Destructive tool in the Ebay MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on ebay_clear_tokens? +

Register the Ebay MCP server in PolicyLayer and add a rule for ebay_clear_tokens: 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_clear_tokens? +

ebay_clear_tokens is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit ebay_clear_tokens? +

Yes. Add a rate_limit block to the ebay_clear_tokens 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_clear_tokens completely? +

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

ebay_clear_tokens 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.

Enforce policy on every Ebay tool call.

Deterministic rules across all 332 Ebay tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

GOVERN EBAY →

Free to start. No card required.

332 Ebay tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

// WHAT EBAY_CLEAR_TOKENS ON EBAY DOES

// THE RISK

// HOW TO CONTROL EBAY_CLEAR_TOKENS

// EXPLORE