Clef
Rank #105,659io.github.MelMayssonOwen/clef
Read-only music guides, chord transposition, piano chord spelling and guitar-tab pitch mapping.
What you can do with Clef
Clef is a Model Context Protocol (MCP) server. It ranks #105,659 of 150,963 active servers on MCP Toplist. Clef is listed on Official MCP, with 1 tracked version. It was first listed on Oct 3, 2026 and most recently updated on Oct 3, 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 Clef 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 Clef
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 16, 2026 and could not complete the MCP handshake (jsonrpc error). Requirements remain unverified.
Declared by the Official MCP Registry, last synced Oct 22, 2026. Not independently verified by MCP Toplist.
Hosted endpoint declared as public.
Connect Clef and confirm it works
claude mcp add --transport http clef https://clefdrills.com/mcp[mcp_servers.clef]
url = "https://clefdrills.com/mcp"Add to ~/.codex/config.toml.
https://clefdrills.com/mcpSettings → Connectors → “Add custom connector”, then paste this URL.
{
"mcpServers": {
"clef": {
"url": "https://clefdrills.com/mcp"
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project).
{
"servers": {
"clef": {
"type": "http",
"url": "https://clefdrills.com/mcp"
}
}
}Save as .vscode/mcp.json in your workspace.
{
"mcpServers": {
"clef": {
"serverUrl": "https://clefdrills.com/mcp"
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
{
"mcpServers": {
"clef": {
"url": "https://clefdrills.com/mcp"
}
}
}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 3, 2026
- Version history
- 1 version tracked (below)
- Requirements evidence
- MCP Toplist probed the public endpoint on Oct 16, 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 3, 2026
- Official MCP ↗listed since Oct 4, 2026 · still listed
Do you maintain Clef? to correct or enrich this profile.
Available versions (1)
| Version | Published |
|---|---|
| 1.0.0 | Oct 3, 2026 |
Ranks ahead of 45,304 of 150,963 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.MelMayssonOwen%2Fclef)<a href="https://mcptoplist.com/server/io.github.MelMayssonOwen%2Fclef"><img src="https://mcptoplist.com/badge/io.github.MelMayssonOwen%2Fclef.svg" alt="MCP Toplist: #105,659 of 150,963" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Frequently asked questions
- Is Clef listed on the Official MCP Registry?
- Yes — Clef is listed on the Official MCP Registry.
- How many versions does Clef have?
- MCP Toplist tracks 1 version of Clef, most recently published on Oct 3, 2026.
Do you run this server?
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