Koskamo

Verify merchant legitimacy before purchase

The agent determines if a store is trustworthy by analyzing public signals like domain age, SSL validity, and DNS blocklist status, preventing fraud by flagging suspicious or new domains.

How it works

Read-onlyCommerce

The agent receives a store domain from the user. It calls the check_merchant tool to retrieve 14 public facts about the store, including flags for issues like 'age_under_3_months' and signals from sources like DNS blocklists and SSL certificates. The agent reviews the 'flags' and 'signals' arrays to identify any red flags. It checks the 'freshness' field to ensure data is current. If significant risks are found (e.g., very new domain, blacklisted DNS), the agent warns the user or blocks the transaction. It does not make final fraud decisions but provides clear facts for the user or app to decide.

Prompt

Paste this into an agent that has the servers below connected. Adjust the names and dates to your own.

Prompt for Verify merchant legitimacy before purchase
Check the legitimacy of the store at northstar-outlet.example.com before I buy anything. Run the full merchant check and tell me if there are any red flags like recent domain registration or DNS issues.

MCP servers it needs

Source

The vendor page this playbook is drawn from, and the passage that supports it.

Aggors gathers facts about a store. Your product decides what to do with them. Use it to Research a store domain supplied by a user.
Merchant Evidence API for Shopping Agents | Aggors

Each playbook is drawn from the vendor page it cites and reviewed by Koskamo before it is published. Koskamo does not run these servers or your agent: check what each tool will do before you let it act on your accounts.