SendGrid vs Mailgun vs ThreadCamp
A neutral, fact-checked comparison of SendGrid, Mailgun and ThreadCamp across the five axes that matter for agent and app email: inboxes, sending, forwarding, agent tooling and pricing. Where a detail is not in our research notes, we link to the vendor's docs rather than guess.
| Axis | SendGrid | Mailgun | ThreadCamp |
|---|---|---|---|
| Inboxes | See their docs | See their docs | Real inboxes with threads, reply and forward (POST /v1/inboxes) |
| Sending | See their docs | See their docs | Resend-compatible send + scheduled_at + batch |
| Forwarding | See their docs | See their docs | Catch-all + alias Routes with SRS, unlimited domains |
| Agent / MCP tooling | See their docs | See their docs | Hosted + stdio MCP, sandbox keys, wait_for_message |
| Pricing shape | See their docs | See their docs | Free, $19/mo, $79/mo; metered $1.00/1k |
ThreadCamp unifies these axes as the one email API for AI agents - with forwarding Routes and SRS built in.
Keep comparing
Questions
SendGrid vs Mailgun - which should I use?
It depends on the axis. Compare SendGrid and Mailgun across inboxes, sending, forwarding, agent tooling and pricing in the table above. Where a detail is not published in our research notes we defer to their docs. ThreadCamp covers all five axes under one key.
Where does ThreadCamp fit against SendGrid and Mailgun?
ThreadCamp is the email API for AI agents: real inboxes with threads, Resend-compatible sending with scheduled_at and batch, catch-all and alias forwarding Routes with SRS, an MCP server, and Free / $19 / $79 pricing with metered overage.
Try the one that does all five.
No credit card. Full API, MCP and webhooks on the free tier.