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Sendscape vs Siel

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Sendscape compared with Siel
DetailSendscape logo SendscapeSiel logo Siel
What it doesEmail API and SMTP relay with MCP server for AI assistants SMS API and CPaaS platform for OTPs and alerts
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Paid
PricingNot given Not given
Key features
  • HTTP API for sending email
  • SMTP relay on port 587 with STARTTLS
  • Batch sending up to 100 messages per request
  • Signed webhooks for delivery, bounce, complaint, open and click events
  • Automatic bounce and complaint suppression
  • DKIM, SPF and DMARC domain authentication with Domain Connect
  • Newsletters and broadcasts with one-click unsubscribe
  • Sandbox test addresses and idempotency keys
  • Remote MCP server for Claude, ChatGPT and Cursor
  • Local MCP server with npx for file attachments and inline images
  • REST API and SMPP 3.4 protocol support
  • Routes tested on real phones
  • Campaign management with CSV import
  • OTP by SMS and Telegram
  • Fraud protection with spending and OTP limits
  • Real-time delivery analytics
  • Mobile apps for iOS and Android
  • Public pricing by country
  • Message price shown before sending
What makes it different
  • Transactional and marketing email in one account, no need for separate services
  • MCP server integration allows AI assistants like Claude, ChatGPT and Cursor to send and manage email directly
  • Free plan with 5,000 emails per month, no credit card required
  • Local MCP server runs on your computer for secure file attachment without server access to local files
  • No overage charges by default; hard stop at quota with optional paid extra emails
  • Every route tested on real phones to verify delivery receipts
  • No monthly fee, no minimum contract required
  • Fraud protection stops invalid sends before charging
  • Message price and part count visible before sending
  • One platform across REST API, SMPP, web app and campaigns
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)00
Referring domains (Majestic)00

4 details filled in for both companies.

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