Pick AgentMail if you're a developer or a team building agents that need many inboxes, your own domains, a bigger free allowance (3 inboxes and 3,000 emails a month) or extras like a calendar, IMAP and SMTP access and SDKs. Pick Agentline NZ if you're one person who wants your own AI assistant to have an email address from a New Zealand service, billed in NZ dollars with no GST added, with guides written for people using ChatGPT, Claude and other assistants rather than for developers. Both have hosted MCP servers, and both let an assistant sign itself up while a person confirms by email. Agentline NZ texting is coming soon, and we found no texting on AgentMail's pages.
Agentline NZ is the New Zealand service at agentline.nz, not the US AgentLine.
Side by side
AgentMail facts checked 5 Nov 2026 from the sources in each row. Agentline NZ figures come from our pricing and docs.
| Agentline NZ | AgentMail | AgentMail sources | |
|---|---|---|---|
| What it is | Gives an AI assistant its own @agentline.nz email inbox it can send and read email from. For people with personal AI assistants, and developers. Texting is coming soon. | Email API for AI agents: inboxes, threads, drafts, attachments, a calendar, webhooks and SDKs. For developers and teams. | AgentMail pricing, AgentMail MCP docs |
| Email inbox your assistant can read | Yes: name@agentline.nz, live from day one. Your assistant sends and reads email and waits for sign-in codes with wait_for_code. | Yes: name@agentmail.to, or an address on your own domain. Its MCP server lists, searches and reads mail, and ChatGPT can be told about new mail through MCP Events. Its MCP tool list has no tool that waits for the next email. | AgentMail MCP docs |
| Works with AI assistants (MCP) | Yes: a hosted MCP server at https://agentline.nz/mcp that works in ChatGPT, Claude and other assistants, with nothing to install. A REST API and command-line tool too. | Yes: a hosted MCP server at mcp.agentmail.to with 47 tools. Sign in with OAuth in Claude and ChatGPT, or use an API key in Cursor and other clients. | AgentMail MCP docs |
| Assistant can sign itself up | Yes. The assistant signs itself up. The owner opens one email link, and adds a card for a paid plan. | Yes. An agent signs up with one API call and gets an inbox that can only email its person, 10 emails a day, until that person confirms a 6-digit code. Without a person's email address the inbox can only receive. | AgentMail agent sign-up, AgentMail agent verify |
| Monthly cost | Free NZ$0 (1 inbox, 100 emails a month). Starter NZ$29/month (1 inbox, 500 emails a month). Pro NZ$79/month (5 inboxes, 2,000 emails a month). No GST added. | Free $0 (3 inboxes, 3,000 emails a month, 100 a day, with a "Sent via AgentMail" footer). Developer $20/month (10 inboxes, 10,000 emails a month). Startup $200/month (150 inboxes). Enterprise on request. Extra inboxes $2/month each. | AgentMail pricing |
| Free trial | A free inbox-only plan, and a 7-day free trial of Starter or Pro, card required: 1 email inbox and 50 outbound emails. One free trial per person. We check this using the email address and the card used to start it, so a new account with the same email address or card won't get another trial. | No trial listed. The Free plan needs no credit card, and early-stage startups can apply for 3 months of Startup free. | AgentMail pricing, AgentMail for Startups (checked 6 Nov 2026) |
| Texting | Coming soon. Texting and phone numbers aren't available yet. Join the waitlist at /pricing#texting. | Not listed on the pages we checked. | AgentMail pricing, AgentMail MCP docs |
AgentMail's pricing page shows prices in $ without naming the currency. Agentline NZ charges NZD and isn't GST-registered, so no GST is added to its prices.
Common questions
What does each cost?
AgentMail Free is $0 with 3 inboxes and 3,000 emails a month, and Developer is $20 a month for 10 inboxes. Agentline NZ Free is NZ$0 with 1 inbox and 100 outbound emails a month, sent only to your own verified address. Starter is NZ$29 a month (1 inbox, 500 emails) and Pro is NZ$79 a month (5 inboxes, 2,000 emails), with no GST added. The two are priced in different currencies, so compare the allowances you need.
Can my assistant sign itself up?
Yes, on both. AgentMail's inbox can only email its person until they confirm a 6-digit code. On Agentline NZ the assistant signs itself up, you open one email link, and you add a card for a paid plan.
Do both work in ChatGPT and Claude?
Yes. Both run hosted MCP servers that you sign in to from ChatGPT or Claude, with an API key for other clients.
Which suits a developer team?
AgentMail. It has more inboxes per plan, custom domains, SDKs, IMAP and SMTP access and a calendar. Agentline NZ is built for one person's assistant.
Can either send texts?
We found no texting on AgentMail's pages. Agentline NZ texting is coming soon and it has no phone numbers yet. You can join the waitlist at /pricing#texting.
Sources
All checked 5 Nov 2026.
- AgentMail pricing
- AgentMail MCP docs
- AgentMail agent sign-up
- AgentMail agent verify
- AgentMail for Startups (checked 6 Nov 2026)