Mails.ai — Agent Email
Rank #53,378ai.mails/agent-email
A real inbox for AI agents: send, receive and thread email, behind a prompt-injection firewall.
What you can do with Mails.ai — Agent Email
Mails.ai — Agent Email is a Model Context Protocol (MCP) server. It ranks #53,378 of 152,076 active servers on MCP Toplist. Mails.ai — Agent Email is listed on Official MCP, with 6 tracked versions. It was first listed on Oct 3, 2026 and most recently updated on Oct 16, 2026.
Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. Its registry listings below are the authority on what it does.
What Mails.ai — Agent Email can and cannot do
Not verifiedMCP Toplist has not catalogued this server's tools or limitations. Check its registry listings below.
What you need before using Mails.ai — Agent Email
The registry listing declares no required environment variables or authentication. This is declared metadata, not a verified install — the repository README is the authority.
MCP Toplist probed the public endpoint on Oct 25, 2026 and could not complete the MCP handshake (jsonrpc error). Requirements remain unverified.
Declared by the Official MCP Registry, last synced Oct 25, 2026. Not independently verified by MCP Toplist.
- MAILS_API_KEY · required
- MAILS_BASE_URL · optional
Hosted endpoint declared as public.
Connect Mails.ai — Agent Email and confirm it works
claude mcp add --transport http agent-email https://api.mails.ai/mcpclaude mcp add agent-email -e "MAILS_API_KEY=<your MAILS_API_KEY>" -e "MAILS_BASE_URL=<your MAILS_BASE_URL>" -- npx -y @mailsai/mcp-serverReplace each placeholder with your own value before saving.
[mcp_servers.agent-email]
url = "https://api.mails.ai/mcp"Add to ~/.codex/config.toml.
[mcp_servers.agent-email]
command = "npx"
args = ["-y", "@mailsai/mcp-server"]
[mcp_servers.agent-email.env]
MAILS_API_KEY = "<your MAILS_API_KEY>"
MAILS_BASE_URL = "<your MAILS_BASE_URL>"Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.
https://api.mails.ai/mcpSettings → Connectors → “Add custom connector”, then paste this URL.
{
"mcpServers": {
"agent-email": {
"command": "npx",
"args": [
"-y",
"@mailsai/mcp-server"
],
"env": {
"MAILS_API_KEY": "<your MAILS_API_KEY>",
"MAILS_BASE_URL": "<your MAILS_BASE_URL>"
}
}
}
}Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.
{
"mcpServers": {
"agent-email": {
"url": "https://api.mails.ai/mcp"
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project).
{
"mcpServers": {
"agent-email": {
"command": "npx",
"args": [
"-y",
"@mailsai/mcp-server"
],
"env": {
"MAILS_API_KEY": "<your MAILS_API_KEY>",
"MAILS_BASE_URL": "<your MAILS_BASE_URL>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.
{
"servers": {
"agent-email": {
"type": "http",
"url": "https://api.mails.ai/mcp"
}
}
}Save as .vscode/mcp.json in your workspace.
{
"servers": {
"agent-email": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@mailsai/mcp-server"
],
"env": {
"MAILS_API_KEY": "<your MAILS_API_KEY>",
"MAILS_BASE_URL": "<your MAILS_BASE_URL>"
}
}
}
}Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"agent-email": {
"serverUrl": "https://api.mails.ai/mcp"
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
{
"mcpServers": {
"agent-email": {
"command": "npx",
"args": [
"-y",
"@mailsai/mcp-server"
],
"env": {
"MAILS_API_KEY": "<your MAILS_API_KEY>",
"MAILS_BASE_URL": "<your MAILS_BASE_URL>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"agent-email": {
"url": "https://api.mails.ai/mcp"
}
}
}{
"mcpServers": {
"agent-email": {
"command": "npx",
"args": [
"-y",
"@mailsai/mcp-server"
],
"env": {
"MAILS_API_KEY": "<your MAILS_API_KEY>",
"MAILS_BASE_URL": "<your MAILS_BASE_URL>"
}
}
}
}Replace each placeholder with your own value before saving.
After adding the config, ask your client to list this server's tools. A tool list confirms the connection; an empty list or an error means the server did not start or needs credentials.
What changed, and when this was checked
- First listed
- Oct 3, 2026
- Latest version published
- Oct 16, 2026
- Version history
- 6 versions tracked (below)
- Requirements evidence
- MCP Toplist probed the public endpoint on Oct 25, 2026 and could not complete the MCP handshake (jsonrpc error). Requirements remain unverified.
- Profile checked
- Not yet — purpose, capabilities and requirements above come from registry data only
- Ranking data as of
- Oct 16, 2026
- Official MCP ↗listed since Oct 3, 2026 · still listed
Do you maintain Mails.ai — Agent Email? to correct or enrich this profile.
Available versions (6)
| Version | Published |
|---|---|
| 0.5.0 | Oct 16, 2026 |
| 0.4.0 | Oct 12, 2026 |
| 0.3.0 | Oct 10, 2026 |
| 0.2.12 | Oct 4, 2026 |
| 0.2.11 | Oct 3, 2026 |
| 0.2.10 | Oct 3, 2026 |
Ranks ahead of 98,698 of 152,076 servers on MCP Toplist.
Show your rank
Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.
[](https://mcptoplist.com/server/ai.mails%2Fagent-email)<a href="https://mcptoplist.com/server/ai.mails%2Fagent-email"><img src="https://mcptoplist.com/badge/ai.mails%2Fagent-email.svg" alt="MCP Toplist: Top 50% of 152,076" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Frequently asked questions
- Is Mails.ai — Agent Email listed on the Official MCP Registry?
- Yes — Mails.ai — Agent Email is listed on the Official MCP Registry.
- How many versions does Mails.ai — Agent Email have?
- MCP Toplist tracks 6 versions of Mails.ai — Agent Email, most recently published on Oct 16, 2026.
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