ebay_opt_in_to_program

Opt-in to a seller program

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-opt-in-to-program.md

WHAT IT DOES

What ebay_opt_in_to_program does on Ebay

AI agents use ebay_opt_in_to_program 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_opt_in_to_program is rated Medium

This tool enrolls the seller into an eBay seller program, which is a reversible write operation (they can presumably opt out later). It modifies account settings/enrollment state but does not delete data, execute arbitrary code, or move money directly. Severity is medium because enrolling in a program could trigger obligations or change account behavior in meaningful ways.

From the tool's definition Opt-in to a seller program

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs ebay_opt_in_to_program 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_opt_in_to_program, this is the rule to start with:

ebay_opt_in_to_program Rate-limited

ebay_opt_in_to_program 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_opt_in_to_program": {
      "limits": [
        {
          "counter": "ebay_opt_in_to_program_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_opt_in_to_program call is checked against it from then on.

FAQ

Questions about ebay_opt_in_to_program

What does the ebay_opt_in_to_program tool do? +

Opt-in to a seller program. 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_opt_in_to_program? +

Register the Ebay MCP server in PolicyLayer and add a rule for ebay_opt_in_to_program: 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_opt_in_to_program? +

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

Can I rate-limit ebay_opt_in_to_program? +

Yes. Add a rate_limit block to the ebay_opt_in_to_program 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_opt_in_to_program completely? +

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

ebay_opt_in_to_program 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

More on Ebay, and thousands of servers like it.

This server

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Guides

Govern customer-ops agents →Argument validation →Scoped token →