SendByte is a Naira-priced communications API for African products, covering transactional and marketing email today, with SMS and WhatsApp coming. See…
Category
Marketing
Pricing
Freemium with usage-based tiers: free plan (3,000 emails/mo) plus paid monthly plans from ₦2,000 to ₦200,000 billed in Naira via Paystack or Flutterwave, a pay-as-you-go option at ₦300 per 1,000 emails, and a custom Enterprise tier.
SendByte is a communications API built specifically for African software products, developed by Echospectra Technology Limited in Abuja, Nigeria. It lets developers send transactional email (receipts, OTPs, password resets, alerts) and marketing email (campaigns, lists, segments, automation) through a single REST API and dashboard, sharing one monthly quota and one bill. SMS and WhatsApp channels are in development and open for early access on the same API. SendByte's core differentiation is being built for Africa rather than adapted for it: pricing is fixed in Naira (billed via Paystack or Flutterwave) so exchange-rate swings don't hit customers, infrastructure is hosted in-region for lower latency, and deliverability tooling such as inbox-placement checks across major providers (Gmail, Outlook, iCloud, Yahoo, Zoho) and a domain/DNS audit are built into the dashboard. It ships official SDKs for Node.js, Python, PHP, and Go (Ruby on the roadmap), signed webhooks, a sandbox mode for testing without a verified domain, and NDPR-oriented compliance tooling for Nigerian data residency requirements.
Key Features
Transactional email API — Send receipts, OTPs, password resets, and alerts via a REST API with SDKs for Node.js, Python, PHP, and Go.
Marketing email & campaigns — Lists, segments, signup forms, and automation included on every plan, sharing the same quota and bill as transactional email.
Deliverability monitoring — Inbox-placement checks via seed inboxes at Gmail, Outlook, iCloud, Yahoo, and Zoho, shown live in the dashboard.
Automatic domain authentication — SPF, DKIM, and DMARC records generated and managed for you, with a sandbox mode for testing before verifying a domain.
Signed webhooks — Delivery event webhooks (e.g. email.delivered) with signature verification built into each SDK.
SMS and WhatsApp (early access) — Additional messaging channels in development on the same API, dashboard, and bill as email.
Pros & Cons
Pros
Pricing fixed in Naira with no dollar exchange-rate surprises, billed via local processors Paystack or Flutterwave
Transactional and marketing email share one API, one dashboard, and one quota — no separate subscription for campaigns
In-region African infrastructure aimed at lower latency and deliverability, plus built-in inbox-placement/deliverability measurement
Free tier (3,000 emails/month, no card required) and low-cost entry paid plan starting at ₦2,000/month
Official SDKs for Node.js, Python, PHP, and Go, with a sandbox mode for testing before verifying a domain
Cons
SMS and WhatsApp channels are not yet generally available — only early access as of the current site
Naira-denominated pricing and African-region infrastructure are optimized for the African market, which may be less relevant for companies sending primarily to other regions
As a newer, smaller provider than global incumbents like SendGrid or Resend, its track record and ecosystem/integration breadth are still developing
Lower-tier plans have limited domains, API keys, team members, and no SLA (SLA only starts on Growth and Scale plans)