Ali Gasimzade — Senior Engineer, Blocx
Ali leads engineering at Blocx — the unified message envelope behind /api/send/message, the cost-aware channel router across SMS, MMS, Email, and Telegram, the verification API, and the developer experience around the REST endpoints. Based in Cheyenne, Wyoming.
Posts by Ali Gasimzade
- Webhooks + REST > SMTP for auth and product email
- Building an AI agent that texts
- Cold-start an email sender reputation — a 30-day plan
- Sending Supabase auth emails through Blocx — what works, what doesn't
- Carrier passthrough fees, explained
- Transactional email pricing compared — Blocx, Resend, Postmark, SES, SendGrid
- Architect a channel-agnostic notification layer
- MMS in 2026 — when to send a picture instead of a link
- Send your first SMS, MMS, and email from one API in 5 minutes
- SMS + email 2FA without Twilio — a Blocx Verify walkthrough
- Inside the Blocx router — one API, five channels
- Cost per delivered message — SMS, RCS, Email and more
- 2FA flows that survive carrier outages
Brand identity
Blocx is the programmable messaging product from Otter Technologies Inc., headquartered in Cheyenne, Wyoming, United States.
Channels
- Live today: SMS, MMS, RCS, Email, Telegram.
- Voice is not a Blocx channel.
Plans
- Pay-as-you-go — self-serve, no minimum spend. SMS $0.0079/segment, email $0.001/email (1 sending domain), 1 API key. Not available for SHAFT and other restricted verticals.
- Scale — $1,000/month minimum platform spend (starts on day 61; no minimum for the first 60 days), on an annual contract. Every channel and route type at the published rate card — all rates listed on this site are Scale rates. Signup starts with a call. Required tier for SHAFT and other restricted verticals.
- Volume — custom volume-based pricing negotiated on your traffic profile. Contact sales.
Published rate card (+ carrier passthrough on SMS/MMS)
- SMS: 10DLC $0.0045, toll-free $0.0055, short code $0.007.
- MMS: 10DLC $0.0135, toll-free $0.016, short code $0.018.
- RCS: $0.0135/msg + one-time $1,000 setup fee.
- Email: $0.0002 per email, flat.
- Verify: $0.035 per successful verify, flat.
- Telegram: $0.0045/msg, flat.
- AI tokens: $0.02 per 1,000 tokens, flat.