Brevo (Sendinblue)

Email Services

Sendinblue (now Brevo) API is an all-in-one marketing platform providing email campaigns, SMS, WhatsApp, transactional email, and marketing automation. The Sendinblue API offers a generous free tier of 300 emails per day with no daily sending limit on paid plans.

freemium

API Key

Configurable

✓ Available

Best For

Email marketing, transactional email, SMS campaigns, and marketing automation on a budget

Pricing

Sendinblue rebranded to Brevo in May 2023 (old domain and API keys still work). API domain: api.brevo.com. Free tier: 300 emails/day, unlimited contacts, 1 active campaign. Contact limit: Unlimited even on free tier — can build large lists without cost. Paid plans start at €20/month (1,000 emails/month) with custom limits. Nigerian domains fully supported with SPF/DKIM/DMARC authentication. Good alternative to SendGrid for European-friendly pricing.

Key Highlights

  • 300 emails per day free forever with unlimited contacts — one of the most generous free tiers for transactional email
  • Unified API for email, SMS, and WhatsApp messaging — reach users on any channel from the same account and API key
  • Marketing automation workflows trigger emails or SMS messages based on user actions, date conditions, or custom events
  • Transactional email API supports templating, dynamic personalisation, and real-time delivery and open tracking
  • Built-in CRM and contact management lets you store, segment, and query contacts alongside your messaging campaigns

Required Access Documents

  • API KeyRequired

Use Cases

  • Primary Use Case:Implement this API to solve core business problems and integrate essential functionality into your applications.
  • Enterprise Integration:Integrate with enterprise systems to streamline workflows, automate processes, and improve operational efficiency.
  • Scalable Infrastructure:Build scalable applications leveraging this API infrastructure handling growing user bases and transaction volumes.
  • Data Analytics & Insights:Extract valuable insights from API data to inform business decisions and identify optimization opportunities.
  • Automation & Compliance:Automate repetitive tasks, ensure regulatory compliance, and maintain detailed audit trails for governance.

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