Look for concrete details in the API's documentation or product page:

• Verification methods offered: Does it do ID scan? Database check? Both? Can you switch?
• Compliance coverage: Does it handle your state's specific requirements? For example, Texas requires a database check before selling vape products online. If the API doesn't mention state-specific rules, that's a red flag.
• Integration options: Is there a plugin for Shopify, WooCommerce, or your custom site? How much dev work is needed?
• Pricing transparency: Per-check? Monthly? Are there setup fees? What about overage charges?
• Audit logs: Can you export a log of every verification? This is essential for your own compliance records.
• Data retention: How long does the API keep customer data? Where is it stored?