agentmash vs MachineMail
agentmash and MachineMail are both team communication tools aimed at developers and small businesses. MachineMail costs less, from $9/mo versus $20/mo for agentmash. Both have a free plan.
Shared room that warns coding agents before they edit the same file
Email API and MCP server that gives AI agents inboxes of their own
| Pricing | Freemium · $20 | Freemium · $9 |
| Starting price | $20/mo | $9/mo |
| Free plan | Yes | Yes |
| Free trial | 30 days | — |
| Built for | Developers, Small businesses, Enterprise | Developers, Small businesses |
| Platforms | macos, windows, linux | web |
| Country | — | — |
| Rating | — | — |
Choose agentmash if
Engineering teams where several developers run AI coding agents on the same repository at once.
- Pricing counts developers only, with unlimited agents
- Free for two developers, and Team's first month is free
- Server does not see code unless a room enables diffs
Look elsewhere if: Solo developers or teams that just need a single coding agent (Cursor) without cross-machine coordination.
Choose MachineMail if
Developers building AI agents that need their own email addresses and a safe way to read untrusted inbound mail.
- Unlimited inboxes are free on every plan
- Trust layer addresses prompt injection and phishing in email
- AgentMail-compatible API makes switching a config change
Look elsewhere if: Teams that only need to send transactional or marketing email from an app (Resend).
agentmash vs MachineMail pricing
agentmash
- Free$0Up to 2 developers, 1 private repo, 7 days of history
- Team$20/moPer developer, unlimited private repos, 90 days; $16 billed yearly
- EnterpriseFrom $15,000/yrSelf-hosting from a private Docker image, invoiced
MachineMail
- Free$03,000 messages/mo (100/day), 1 GB, 1 custom domain, 1 seat
- Pro$9/mo7,500 inbound, 2,500 outbound, 10 GB, 10 domains, unlimited seats
- Team$49/mo45,000 inbound, 15,000 outbound, 30 GB, 50 domains, unlimited seats
- Scale$199/mo200,000 inbound, 65,000 outbound, 150 GB, 250 domains, Slack support
agentmash · Key features
- Pre-edit warnings naming the teammate, branch and task behind a change
- Advisory path claims so agents split work before starting
- Strict mode that blocks edits into a teammate's change until acknowledged
- Prompts sent to a teammate's agent that run only after their approval
- Team chat whose latest messages reach every agent before its next prompt
- Lobby desktop app for Mac and Windows running agents side by side
Cons
- Sign-in requires GitHub; GitLab and Bitbucket need extra setup
- No Linux desktop app, only the CLI
- Continue and Zed get MCP tools only, without live edits in the room
MachineMail · Key features
- Free inboxes on machinemail.dev or your own domains, ephemeral or permanent
- Trust report and level on every inbound message
- Agent-safe text with hidden text and zero-width characters removed
- Hosted MCP server with 17 tools, including wait_for_message
- Catch-all domains that create an inbox on first delivery
- Pods and scoped API keys to separate customers or agents
Cons
- New service that publishes no team, legal entity or address on its site
- Free plan caps mail at 100 messages a day
- No annual pricing listed
agentmash vs MachineMail: FAQ
Which is cheaper, agentmash or MachineMail?
MachineMail starts at $9/mo and agentmash at $20/mo. Both prices are checked on the vendors' own pricing pages.
Do agentmash and MachineMail have a free plan?
Yes, both agentmash and MachineMail have a free plan; paid plans add more usage and features.