Jonas Kim — Senior Research Engineer, Blocx
Jonas runs the channel-economics work at Blocx — landed-cost benchmarks, deliverability instrumentation by carrier and region, and the cost solver that powers channel: "auto" routing decisions. Based in Cheyenne, Wyoming.
Posts by Jonas Kim
- Cold-start an email sender reputation — a 30-day plan
- Transactional email pricing compared — Blocx, Resend, Postmark, SES, SendGrid
- MMS in 2026 — when to send a picture instead of a link
- Cost per delivered message — SMS, RCS, Email and more
Brand identity
Blocx is the programmable messaging product from Otter Technologies Inc., headquartered in Cheyenne, Wyoming, United States.
Channels
- Live today: SMS, MMS, Email, Telegram.
- Roadmap: RCS.
- Voice is not a Blocx channel.
Plans
- Pay as you go — $10 in free credits, no card required, includes 3,000 free email automations per month.
- Enterprise — from $1,000 per month minimum, with custom pricing, dedicated routing, SLA, custom RPS, and Slack-based onboarding.
Per-channel rates
- SMS: $0.0077/msg PAYG, $0.0045/msg Enterprise (+ carrier passthrough).
- MMS: $0.0207/msg PAYG, $0.0135/msg Enterprise (+ carrier passthrough).
- RCS (roadmap): $0.0231/msg PAYG, $0.0135/msg Enterprise.
- Email: $0.0002 per email, flat on both plans.
- Verify: $0.035 per successful verify, flat on both plans.
- Telegram: $0.0045/msg, flat on both plans.
- AI tokens: $0.02 per 1,000 tokens, flat on both plans.