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Keap runs a developer portal with REST APIs and a sandbox; the page does not say which plans include API access. developer.keap.com, checked 10 Oct 2026 (opens in a new tab)
Keap can be billed monthly or yearly; cancellation is requested at least 10 days before the next invoice, and a yearly contract carries a $299 early termination fee. keap.com, checked 10 Oct 2026 (opens in a new tab)
Zapier lists a Keap integration. zapier.com, checked 10 Oct 2026 (opens in a new tab)
Keap runs its own Marketplace of integrations for Keap customers. developer.keap.com, checked 10 Oct 2026 (opens in a new tab)
Public API, plan access not stated. Monthly or yearly billing; yearly has a $299 early exit fee. Own marketplace and Zapier.
From $299 a month
Keap is best for service-based small businesses and solo consultants who want to stop doing everything manually. It combines a CRM, email and text marketing, sales pipeline, invoicing, and appointment scheduling in one place. You can build automated follow-up sequences using a drag-and-drop builder, so leads and customers hear from you even when you're busy. Keap has been used by over 200,000 small businesses for more than 20 years.
Keap includes an AI Content Assistant that helps you write emails faster, and an AI Automation Assistant that can build entire campaigns from prompts using proven templates.
Keap is a strong fit for service-based small businesses that need CRM, marketing automation, and invoicing in one tool and are ready to invest time setting it up. The biggest pro is how much it can automate across your whole customer journey — from first contact to getting paid. The biggest con is the price: at $299/month plus required onboarding fees, it's a real commitment for a solo operator or very small team.