day3
Rank #15,975io.github.Mopra/day3
Draft email campaigns in day3 from Claude Code, Cursor or VS Code as editable composer blocks.
What you can do with day3
day3 is a Model Context Protocol (MCP) server published by Mopra. It ranks #15,975 of 176,402 active servers on MCP Toplist, and its repository has 1 GitHub stars. day3 is listed on Official MCP, with 1 tracked version. It was first listed on Oct 11, 2026 and most recently updated on Oct 11, 2026.
Not verifiedMCP Toplist has not yet written a checked profile for this server, so the paragraph above is assembled from registry data only. The repository README is the authority on what it does.
What day3 can and cannot do
Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.
What you need before using day3
The hosted endpoint is declared as gated by authentication — connect via its URL and authenticate with the provider (OAuth flow or an API key/header, per its docs).
Declared by the Official MCP Registry, last synced Nov 14, 2026. Not independently verified by MCP Toplist.
Hosted endpoint declared as requiring authentication.
Connect day3 and confirm it works
claude mcp add --transport http day3 https://go.day3.app/api/mcpThis endpoint requires authentication — see the server’s docs for credentials.
[mcp_servers.day3]
url = "https://go.day3.app/api/mcp"Add to ~/.codex/config.toml. This endpoint requires authentication — see the server’s docs for credentials.
https://go.day3.app/api/mcpSettings → Connectors → “Add custom connector”, then paste this URL. This endpoint requires authentication — see the server’s docs for credentials.
{
"mcpServers": {
"day3": {
"url": "https://go.day3.app/api/mcp"
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). This endpoint requires authentication — see the server’s docs for credentials.
{
"servers": {
"day3": {
"type": "http",
"url": "https://go.day3.app/api/mcp"
}
}
}Save as .vscode/mcp.json in your workspace. This endpoint requires authentication — see the server’s docs for credentials.
{
"mcpServers": {
"day3": {
"serverUrl": "https://go.day3.app/api/mcp"
}
}
}Add to ~/.codeium/windsurf/mcp_config.json. This endpoint requires authentication — see the server’s docs for credentials.
{
"mcpServers": {
"day3": {
"url": "https://go.day3.app/api/mcp"
}
}
}This endpoint requires authentication — see the server’s docs for credentials.
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.
When to choose another server
No task-specific alternatives are catalogued for day3yet; the list above is its publisher's other servers.
What changed, and when this was checked
- First listed
- Oct 11, 2026
- Latest version published
- Oct 11, 2026
- Version history
- 1 version tracked (below)
- Requirements evidence
- Declared by the Official MCP Registry, last synced Nov 14, 2026. Not independently verified by MCP Toplist.
- Profile checked
- Not yet — purpose, capabilities and requirements above come from registry data only
- Ranking data as of
- Oct 11, 2026
- Official MCP ↗listed since Oct 12, 2026 · still listed
Do you maintain day3? to show as its verified maintainer and add your own summary, sign-in details and links. The rest of this page is read from the registry listings and from MCP Toplist's own connection check.
Available versions (1)
| Version | Published |
|---|---|
| 1.0.0 | Oct 11, 2026 |
Ranks ahead of 160,427 of 176,402 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/io.github.Mopra%2Fday3)<a href="https://mcptoplist.com/server/io.github.Mopra%2Fday3"><img src="https://mcptoplist.com/badge/io.github.Mopra%2Fday3.svg" alt="MCP Toplist: Top 10% of 176,402" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Frequently asked questions
- Who maintains day3?
- day3 is maintained by Mopra, which publishes 2 MCP servers (3 total versions) tracked on MCP Toplist.
- Is day3 listed on the Official MCP Registry?
- Yes — day3 is listed on the Official MCP Registry.
- How many versions does day3 have?
- MCP Toplist tracks 1 version of day3, most recently published on Oct 11, 2026.
- Where can I find the source code for day3?
- The source code for day3 is hosted at github.com/Mopra/day3.app.
Do you run this server?
Community projects list the MCP servers behind real agents and apps. Publish yours and this page will link to it.