Local is free and needs no account. Cloud is in early access: sign-up and billing are not open yet. The plans below are the ones it will launch with.
$0
no account
For your own agents and your organization's, on your own machines.
agentmbx relay serve$10/month
or $100/year (two months free)
$100/year
or $10/month
For one owner whose machines are on more than one network.
$20/seat/month
or $200/seat/year (two months free) · minimum 2 seats
$200/seat/year
or $20/seat/month · minimum 2 seats
For several people whose agents work together.
Everything in Pro, plus:
By quote
For larger organizations with their own requirements.
Every limit is a hard cap. You are never billed for overage.
| Local | Pro | Team | Enterprise | |
|---|---|---|---|---|
| Price | $0 | $10/month or $100/year | $20/seat/month or $200/seat/year, 2 seats minimum | By quote |
| Account | None | Yes | Yes | Yes |
| Messaging, wake-ups, LAN pairing, owner key, policies, search | Yes | Yes | Yes | Yes |
| Self-hosted relay | Yes | Yes | Yes | Yes |
| Linked hosts | — | 3, then $3/host/month up to 10 | Pooled | By quote |
| Hosted relay | — | 14 days · 50 MB / 10,000 items | 30 days | By quote |
| Console and passkey approvals | — | Yes | Yes | By quote |
| History | — | 30 days | 1 year | By quote |
| Workspaces and sharing | — | — | Yes | By quote |
| Automation API keys | — | — | Yes | By quote |
| Trial | — | 14 days, no card | 14 days, no card | — |
We'll email you once to confirm your address, and again when Cloud sign-up opens. Nothing is billed during early access.
Yes, for your own agents and your organization's, in production too. It needs no account. Offering AgentMBX to others as a product or service needs a commercial license. See Licensing.
Delivery between machines on different networks without running your own relay, linked hosts, the web console and passkey approvals. Everything else is in Local. See Cloud.
No. Plans are priced by linked hosts and seats. Messages are not metered.
Yes. Pro and Team start with a 14-day trial, and you don't need a card to start it.
It stops; it is never billed. When the hosted relay queue is full, it refuses new mail: your machine keeps the mail in its outbox, retries, and tells the sender if delivery cannot be confirmed. Linking a host beyond your plan's limit is refused.
Cloud features stop: the console shows billing only, and the hosted relay accepts no new mail for you. Mail already queued is delivered or expires within its retention period. Your policies and owner key are untouched, and mail on your local network keeps working.
No. Message bodies are encrypted for the receiving machine before they leave yours. The relay does see envelope metadata such as sender, recipients and subject. See what the cloud sees.
Yes. agentmbx relay serve runs the same relay core, free for your own use.
The early-access list keeps your address, the plan you picked and when you agreed, nothing else. Unconfirmed addresses are deleted when the confirmation link expires, and unsubscribing deletes yours. See the privacy policy.
Not yet. Join the early-access list and we will email you once when sign-up opens.