estimate_cost
Estimate email & SMS marketing cost
Estimated monthly list price (USD, before tax, monthly billing) of email marketing platforms for a given number of contacts and emails per month, optionally with SMS to one destination country. Computed from a fixed table of prices collected from each vendor's official pricing page; each row has the check date, the official source URL and a status (verified/unverified). Only verified prices are used for "cheapest". No feature requirements are applied. Use when the user asks how much an email/newsletter or SMS marketing tool costs for their list size, or wants to compare prices between Mailchimp, Klaviyo, Brevo, MailerLite, Kit (ConvertKit), beehiiv, Substack, Omnisend, GetResponse, ActiveCampaign and HubSpot Marketing Hub.
contacts必填sms_countrysms_per_monthemails_per_month必填

