Mailgent vs Mailgun
Mailgun is a developer email API for sending and routing at scale. Mailgent is an identity layer that happens to lead with email. Here's the distinction.
Mailgun is a mature email API with strong sending, inbound routing, and validation features. It's aimed at developers wiring email into applications and pipelines.
Mailgent is aimed at developers giving AI agents a presence. Email is the lead capability, but the product is the identity and the bundle of things an agent needs to operate.
Mailgun's model
Mailgun gives you sending APIs, inbound routes that POST parsed mail to your endpoints, and email validation. You build the agent behavior — threading, state, identity, secrets — around it.
It's powerful plumbing, but it's plumbing. There's no per-agent identity or the surrounding vault, 2FA, calendar, and wallet.
Mailgent's model
Mailgent hands an agent a ready identity: an address, threaded inbox tooling, a vault, TOTP, a calendar, a signing key, and a wallet — all scope-gated under one key and exposed over MCP and REST.
You skip building the agent-shaped layer on top of raw email APIs and get to agent behavior immediately.
Which fits your case
If you need flexible email routing inside an application or data pipeline, Mailgun is a solid API. If you're building autonomous agents that must act as themselves across email and beyond, Mailgent gives you the whole identity in one call.
FAQ
Can Mailgent route inbound mail to my code?
Agents read inbound mail through the API or MCP tools and act on it directly, rather than you wiring webhook routes.
Does Mailgent do email validation?
Mailgent focuses on the agent's own inbox and identity. Bulk list validation is a Mailgun-style concern.
Is there a free tier?
Yes. The Free plan gives agents a real inbox and identity with monthly limits, no card required.
Give your agent an inbox.
A real email address, a vault, 2FA, and an identity in one API call.