# Agentline NZ vs Cooper Email

**Short answer:** Pick Cooper Email if you want a bigger free plan (5 inboxes and 5,000 emails a month), many inboxes on a paid plan, or a US phone number that receives texts today. 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 on both an assistant can sign itself up. Agentline NZ texting is coming soon and it has no phone numbers yet.

Agentline NZ is the New Zealand service at agentline.nz, not the US AgentLine.

## Side by side

Cooper Email facts checked 5 Nov 2026 from the sources in each row. Agentline NZ figures come from our [pricing](https://agentline.nz/pricing) and [docs](https://agentline.nz/docs).

| | Agentline NZ | Cooper Email | Cooper Email 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, run by Avatar 8 LLC: inboxes, search, webhooks and a hosted MCP server, plus US numbers that receive texts. For builders and teams. | [Cooper Email home](https://cooperemail.com/), [Cooper Email docs](https://cooperemail.com/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@cooperemail.com, or your own domain (1 on Free). Mail is searchable and arrives by signed webhook, and it has endpoints that wait for the next message or code. | [Cooper Email home](https://cooperemail.com/), [Cooper Email pricing](https://cooperemail.com/pricing) |
| 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 cooperemail.com/mcp with OAuth sign-in, in Claude's connectors directory and listed as a ChatGPT app. | [Cooper Email MCP docs](https://cooperemail.com/docs/mcp), [Cooper Email docs](https://cooperemail.com/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. One call with no sign-in creates the account, an API key and the first inbox. A person can be added as the owner by email. | [Cooper Email MCP docs](https://cooperemail.com/docs/mcp) |
| 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 (5 inboxes, 5,000 emails a month, no daily cap). Starter $12/month (25 inboxes, 25,000 emails a month). Pro $99/month (300 inboxes, 250,000 emails a month). USD. | [Cooper Email pricing](https://cooperemail.com/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 card. | [Cooper Email pricing](https://cooperemail.com/pricing) |
| Texting | Coming soon. Texting and phone numbers aren't available yet. Join the waitlist at /pricing#texting. | US numbers only, on Starter and Pro. Starter can buy up to 3, at US$3 a month each with 100 segments. Pro includes 3 numbers and 1,500 segments, and each extra number, up to 25, is US$3 a month with 100 segments. They receive texts; sending texts isn't available. None on Free. | [Cooper Email pricing](https://cooperemail.com/pricing) |

Cooper Email prices are in US dollars. Agentline NZ charges NZD and isn't GST-registered, so no GST is added to its prices.

## Common questions

### What does each cost?

Cooper Email Free is US$0 with 5 inboxes and 5,000 emails a month, and Starter is US$12 a month for 25 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 get a phone number?

On Cooper Email's paid plans, yes: a US number that receives texts. Pro includes 3 numbers, and each other number is US$3 a month. Agentline NZ texting is coming soon and it has no phone numbers yet. You can join the waitlist at /pricing#texting.

### Can my assistant sign itself up?

Yes, on both. Cooper Email creates the account, key and inbox in one call. 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.

## Sources

All checked 5 Nov 2026.

- [Cooper Email home](https://cooperemail.com/)
- [Cooper Email docs](https://cooperemail.com/docs)
- [Cooper Email pricing](https://cooperemail.com/pricing)
- [Cooper Email MCP docs](https://cooperemail.com/docs/mcp)

## Try Agentline NZ

[Start a 7-day free trial](https://agentline.nz/signup?plan=starter&from=/compare/cooper-email) · [See pricing](https://agentline.nz/pricing) · [Other comparisons](https://agentline.nz/compare)