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Twilio SendGrid vs Substack
Twilio SendGrid: Developers sending email at scale via API. Substack: Writers making money doing the work they believe in. Same fact set for both, straight from each vendor's docs.
Twilio SendGrid
- Free tier
- No free plan; 60-day free trial (100 emails/day)
- Paid from
- $19.95/mo (Essentials) · pricing page
- Public API
- Yes docs
- MCP server
- Yes · Official Twilio MCP is docs/search only; email-sending MCPs are community
- Best for
- Developers sending email at scale via API
- Website
- https://sendgrid.com
Substack
- Free tier
- Free to publish, no subscriber cap
- Paid from
- No monthly fee; 10% of paid subscription revenue plus Stripe fees · pricing page
- Public API
- Yes docs
- MCP server
- Community · Community servers on GitHub only
- Best for
- Writers making money doing the work they believe in
- Website
- https://substack.com
Which one?
Twilio SendGrid suits developers sending email at scale via api. Substack suits writers making money doing the work they believe in. Pricing changes; the fact tables above link both vendors' live pricing pages. For the rest of the field, see Twilio SendGrid alternatives, Substack alternatives, or the full table.