SERVER

Whistle.day

Rank #20,223

day.whistle/mcp

Whistle.day is a free tournament organiser, and its MCP server exposes the same tools its own web screens are built on. An agent can create a tournament, add teams and courts, draw a round robin, single or double elimination bracket or a Swiss (in any order, e.g. groups feeding a playoff), schedule matches onto courts, enter results, and publish live tables and projector screens. 21 tools over Streamable HTTP at https://whistle.day/api/mcp, plus two prompts (plan_a_tournament, enter_the_results). No API key needed: create_tournament works anonymously and the connection's session remembers the temporary account; OAuth 2 is available for signing in as an existing account. No credential ever passes through the model's context. create_handoff mints a link so the person actually running the day can claim the tournament. Docs: https://whistle.day/mcp · Server card: https://whistle.day/.well-known/mcp/server-card.json

1 version

by HonzaTuron (1 servers)View repository ↗Maintained by @turon-honza

Listed & last published

Oct 20, 2026

PURPOSE

What you can do with Whistle.day

Whistle.day is a Model Context Protocol (MCP) server published by HonzaTuron. It ranks #20,223 of 150,963 active servers on MCP Toplist. Whistle.day is listed on Community, with 1 tracked version. It was first listed on Oct 20, 2026 and most recently updated on Oct 20, 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.

CAPABILITIES AND LIMITATIONS

What Whistle.day can and cannot do

Not verifiedMCP Toplist has not catalogued this server's tools or limitations. The repository README lists them.

REQUIREMENTS

What you need before using Whistle.day

DeclaredNo credentialsNo credentials declared

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 22, 2026 and could not complete the MCP handshake (protocol error). Requirements remain unverified.

Declared by the maintainer’s submission to MCP Toplist. Not independently verified by MCP Toplist.

Declared in the registry install config

Hosted endpoint declared as public.

INSTALLATION AND FIRST TASK

Connect Whistle.day and confirm it works

Remote · HTTP

claude mcp add --transport http whistle https://whistle.day/api/mcp

Remote · HTTP

[mcp_servers.whistle]
url = "https://whistle.day/api/mcp"

Add to ~/.codex/config.toml.

Remote · HTTP

https://whistle.day/api/mcp

Settings → Connectors → “Add custom connector”, then paste this URL.

Remote · HTTP

{
  "mcpServers": {
    "whistle": {
      "url": "https://whistle.day/api/mcp"
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project).

Remote · HTTP

{
  "servers": {
    "whistle": {
      "type": "http",
      "url": "https://whistle.day/api/mcp"
    }
  }
}

Save as .vscode/mcp.json in your workspace.

Remote · HTTP

{
  "mcpServers": {
    "whistle": {
      "serverUrl": "https://whistle.day/api/mcp"
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Remote · HTTP

{
  "mcpServers": {
    "whistle": {
      "url": "https://whistle.day/api/mcp"
    }
  }
}

First successful task

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.

MAINTENANCE AND EVIDENCE

What changed, and when this was checked

First listed: Oct 20, 2026
Latest version published: Oct 20, 2026
Version history: 1 version tracked (below)
Requirements evidence: MCP Toplist probed the public endpoint on Oct 22, 2026 and could not complete the MCP handshake (protocol error). Requirements remain unverified.
Profile checked: Not yet — purpose, capabilities and requirements above come from registry data only
Ranking data as of: Oct 21, 2026

Registry sightings

Communitylisted since Oct 22, 2026 · still listed

This server's maintainer has claimed it on MCP Toplist. Corrections to this profile go through the claim.

VERSIONS

Available versions (1)

Version	Published
1.0.0	Oct 20, 2026

STANDING

#20,223of 150,963 active serversTop 25%

Ranks ahead of 130,740 of 150,963 servers on MCP Toplist.

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

Markdown

[![MCP Toplist](https://mcptoplist.com/badge/day.whistle%2Fmcp.svg)](https://mcptoplist.com/server/day.whistle%2Fmcp)

HTML

<a href="https://mcptoplist.com/server/day.whistle%2Fmcp"><img src="https://mcptoplist.com/badge/day.whistle%2Fmcp.svg" alt="MCP Toplist: Top 25% of 150,963" /></a>

Variants: append ?metric=score or ?metric=stars to the image URL.

FAQ

Frequently asked questions

Who maintains Whistle.day?: Whistle.day is maintained by HonzaTuron, which publishes 1 MCP server (1 total version) tracked on MCP Toplist.
Is Whistle.day listed on the Official MCP Registry?: Whistle.day is not on the Official MCP Registry. It is listed on Community.
How many versions does Whistle.day have?: MCP Toplist tracks 1 version of Whistle.day, most recently published on Oct 20, 2026.
Where can I find the source code for Whistle.day?: The source code for Whistle.day is hosted at github.com/HonzaTuron/whistle-day.

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