Do I need a credit card to sign up?

No credit card needed to sign up. You can register, verify emails one at a time, run bulk uploads from the dashboard, and connect any of the 17 integrations without ever entering payment details.

A card only comes into play when you want more credits than the 200 free ones, or when you want API access (which unlocks after your first purchase — see below). At that point you have three options: Pay-As-You-Go (one-time purchase, credits never expire), a monthly subscription (recurring, lower per-credit cost), or cryptocurrency.

What the free tier covers

• Single email verification from the dashboard
• Bulk verification (CSV or TXT upload)
• All 17 integrations (Mailchimp, HubSpot, Klaviyo, and the rest)
• Full dashboard access — results, history, settings
• Team members can be invited and use the shared credit pool

What the free tier does not cover

API access. Our REST API is enabled after your first purchase (smallest plan is $5 for 2,100 credits). This is an abuse-prevention measure — the dashboard and integrations are fine on the free tier, but programmatic access requires a real payment on file to keep bots and scrapers off the platform.

There is no trial that ends and asks for billing info, no auto-charge after some grace period, no card-required-to-see-the-dashboard pattern. The free tier is genuinely free until you decide to buy more credits or want the API.