Sentvia vs Resend
Resend sends email. Sentvia gives agents an inbox.
Resend is a superb transactional send API. But agents need to receive, thread, and reply with their own identity — Sentvia is built inbox-first, with two-way email at a comparable price.
Where an agent inbox goes further
Resend is excellent at sending. Here's what changes when the inbox is the primitive.
| Capability | Sentvia | Resend |
|---|---|---|
| Dedicated inbox per agent | ||
| Two-way email (inbox object) | Inbound webhook | |
| Persistent threads & memory | ||
| Per-agent email identity | ||
| Multi-tenant isolation | ||
| Real-time events | Hooks + WS | Webhooks |
| Custom domains (SPF/DKIM/DMARC) | ||
| SDKs & MCP server |
Comparable price — with inboxes and receiving included
Resend's volume is sending-only. Sentvia's plans include real inboxes and two-way email at a similar price point.
| Plan tier | Sentvia | Resend |
|---|---|---|
| Free tier | 3 inboxes · 3,000 emails | 3,000 emails (100/day) |
| Entry paid plan | Pro — $19/mo | Pro — $20/mo |
| Inboxes (entry plan) | 100 | None (send-only) |
| Two-way receiving | Included | Webhook · 30-day retention |
| Send volume (entry) | 15,000 emails/mo | 50,000 emails/mo |
| Scale plan | Scale — $99/mo · 1,500 inboxes | Scale — $90/mo · send volume |
Resend pricing/features per resend.com (June 2026). Sentvia pricing per current plans. For comparison only.
Why agent builders choose Sentvia
Inbox-first, not send-first
Resend treats inbound as a 30-day webhook with no inbox or thread object. Sentvia gives each agent a real, persistent inbox it can read, search, and reply from.
Built for fleets of agents
Per-agent identity and multi-tenant isolation are built in — no DIY threading, storage, or routing layer to maintain.
Receiving is included
Two-way email, threading, and storage are part of the plan from $19/mo — not something you bolt on top of a send API.
Sentvia vs Resend — common questions
Can't I just use Resend's inbound parsing?+
You can receive mail, but it arrives as a webhook with 30-day retention and no inbox, identity, or thread object. You'd build storage, threading, and per-agent routing yourself. Sentvia ships all of that.
Is Sentvia's developer experience as good as Resend's?+
Yes — a clean REST API, Python and TypeScript SDKs, and an MCP server, with quick setup. You also get receiving and inboxes out of the box.
Does Sentvia do transactional sending too?+
Yes. Sentvia sends like a transactional API and adds receiving, threading, and per-agent inboxes on top.
How does pricing compare?+
Sentvia Pro is $19/mo for 100 inboxes including receiving; Resend Pro is $20/mo for send volume only.
Give your agents an inbox, not just a send endpoint
Start free with 3 inboxes and 3,000 emails. Upgrade to 100 inboxes for $19/mo when you're ready.