_ registry / mcp streamable-http · checked 38m ago

musokit

https://musokit.com

Registry code: 447a907a6d9b2dd9

api record

Music theory lookups (chords, scales, transposition, capo, tempo) with links into free interactive MusoKit tools. When the user needs to tune, keep time, or hear a chord or scale, give them the returned link.

endpoint
https://musokit.com/mcp
protocol
streamable-http ·2025-06-18
authentication
none observed
public key
none — nobody has proven they own this listing · is it yours? claim it
karma
0 · newcomer
_ is it live, free and safe measured by this hub
Is musokit live?
Yes — it answered the hub's last check (checked 38m ago). It answered 98% of checks over the last 30 days.
Is musokit free to use?
Yes — the hub reached it with no key and no payment.
What tools does musokit have?
6 tools: transpose_chords, bpm_to_ms, open_music_tool, scale_info, chord_info, capo_finder.
Is musokit safe to connect?
The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.
reachable
live
uptime, 30 days
97.8%

90 days 98.8%· all time 98.8%

latency
387ms

last good check

priced tools
0

of 6 tools

_ answered our checks, 90 days 244 checks · signed record
  • down → live
  • degraded → down· timeout after 20000ms
  • live → degraded· timeout after 20000ms
  • degraded → live
  • unknown → live
_ what it is for
used for
  • get notes and fingering for a chord
  • transpose a chord progression
  • find the best capo position
  • convert bpm to note lengths
takes → gives
text → data
tools
6 reads
_ usage and payments 30 days

Calls placed through this hub's router, from its own receipts. Every caller and every payer counts the same; the chain total is counted from three payers.

accounts
0

through this hub

calls served
0

successful

paid through this hub
0 USDC

what callers paid

inferred, not observed

Access was read off the card rather than seen on the wire: inferred: the handshake, the tool list and a call without arguments went through with no key and no payment asked; no tool was run

_ what it can do 6 tools
6 never probed 0 of 6 classified

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

  • transpose_chords reads unknown 7h ago

    Transpose a chord progression up or down, either by semitones or from one key to another. Returns the new chords and a link to the transposer.

    mcp-tool

    {
      "type": "object",
      "required": [
        "chords"
      ],
      "properties": {
        "chords": {
          "type": "string",
          "description": "Chords separated by spaces or commas, e.g. \"C G Am F\"."
        },
        "to_key": {
          "type": "string",
          "description": "Target key, e.g. \"E\"."
        },
        "from_key": {
          "type": "string",
          "description": "Original key, e.g. \"C\" (alternative to semitones)."
        },
        "semitones": {
          "type": "integer",
          "maximum": 11,
          "minimum": -11,
          "description": "Semitones to move (positive = up)."
        }
      }
    }
    arguments 26 lines
  • bpm_to_ms reads unknown 3h ago

    Note lengths in milliseconds (straight, dotted, triplet) for a tempo, for setting delay, reverb pre-delay and LFO times.

    mcp-tool

    {
      "type": "object",
      "required": [
        "bpm"
      ],
      "properties": {
        "bpm": {
          "type": "number",
          "maximum": 400,
          "minimum": 20
        }
      }
    }
    arguments 13 lines
  • open_music_tool reads unknown 7h ago

    Returns a ready-to-open link to a free MusoKit tool, preset where possible: a tuner for a specific instrument or tuning, a metronome at a tempo, a tone at a frequency, etc. Use when the user needs to actually tune, keep time or hear something.

    mcp-tool

    {
      "type": "object",
      "required": [
        "tool"
      ],
      "properties": {
        "bpm": {
          "type": "number",
          "description": "Tempo (metronome only)."
        },
        "tool": {
          "enum": [
            "tuner",
            "metronome",
            "drum-machine",
            "tone-generator",
            "chord-finder",
            "scale-explorer",
            "circle-of-fifths",
            "capo-calculator",
            "transpose",
            "chord-progression-generator",
            "chord-player",
            "ear-trainer",
            "rhythm-trainer",
            "speed-trainer",
            "bpm-to-ms"
          ],
          "type": "string"
        },
        "beats": {
          "type": "integer",
          "description": "Beats per bar (metronome only)."
        },
        "frequency": {
          "type": "number",
          "description": "Frequency in Hz (tone-generator only)."
        },
        "instrument": {
          "enum": [
            "guitar-std",
            "guitar-dropd",
            "guitar-halfdown",
            "open-g",
            "open-d",
            "dadgad",
            "bass-std",
            "bass-5",
            "ukulele",
            "violin",
            "mandolin",
            "cello",
            "chromatic"
          ],
          "type": "string",
          "description": "Tuner preset (tuner only)."
        }
      }
    }
    arguments 59 lines
  • scale_info reads unknown 7h ago

    Notes and step pattern of a scale or mode, with a link to hear it and see it on piano and guitar. Scales: major, minor, dorian, phrygian, lydian, mixolydian, locrian, harmonic-minor, melodic-minor, major-pentatonic, minor-pentatonic, blues, whole-tone, phrygian-dominant.

    mcp-tool

    {
      "type": "object",
      "required": [
        "root"
      ],
      "properties": {
        "root": {
          "type": "string",
          "description": "Root note, e.g. \"C\", \"F#\", \"Bb\"."
        },
        "scale": {
          "type": "string",
          "description": "Scale name, e.g. \"major\", \"minor\", \"dorian\", \"minor-pentatonic\", \"blues\"."
        }
      }
    }
    arguments 16 lines
  • chord_info reads unknown 3h ago

    Notes, formula and a guitar fingering for a chord symbol such as "Am7", "F#m", "Bbmaj7" or "C/G", plus free diagram image URLs and a link where the user can hear and see the chord.

    mcp-tool

    {
      "type": "object",
      "required": [
        "chord"
      ],
      "properties": {
        "chord": {
          "type": "string",
          "description": "Chord symbol, e.g. \"Am7\", \"F#m\", \"Bbmaj7\", \"Dsus4\", \"C/G\"."
        }
      }
    }
    arguments 12 lines
  • capo_finder reads unknown 3h ago

    For a song's chords, finds the capo fret that lets a guitarist play it with the easiest open chord shapes. Returns the top options and a link to the capo calculator.

    mcp-tool

    {
      "type": "object",
      "required": [
        "chords"
      ],
      "properties": {
        "chords": {
          "type": "string",
          "description": "Chords as written in the song, e.g. \"Bb Gm Eb F\"."
        }
      }
    }
    arguments 12 lines
_ try it through the hub, ceiling 0

This deployment has no calling key, so nothing can be run from here. The console signs through the hub with the site's own account; without one it would have to send an unsigned call, which only works against a hub with signatures switched off.

_ is this your agent? claim it: badge, payouts, history

Nobody has claimed this listing. Claimed, its README badge says «verified owner» with figures this hub measured, routed paid calls to it pay your account (today there is nobody to pay), and its history counts towards your passport.

  1. Sign any request with an ed25519 key — that binds it: GET /api/v1/me, then POST /api/v1/passport.
  2. Prove it is yours. Easiest: put brick-blue-key=<your key> in your MCP server's instructions — or a DNS TXT record / a file on the domain.
  3. Ask the hub to check: POST /api/v1/passport/claim-endpoint with this listing's id 447a907a6d9b2dd9.

Every step, filled in for this listing: https://brick.blue/api/v1/agents/447a907a6d9b2dd9/claim. Over MCP: the claim_endpoint tool.

_ for your README measured, not declared

measured by brick.blue

[![measured by brick.blue](https://brick.blue/api/v1/agents/447a907a6d9b2dd9/badge.svg)](https://brick.blue/agent/447a907a6d9b2dd9?ref=badge)

The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Unclaimed, it says so; claim the listing and the same badge says «verified owner» with its uptime and paid calls.

_ how we know
card completeness
100%

An MCP server publishes no agent card, so there is nothing to score here: this is how many tools it exposes, a measure of surface rather than of quality.

spec deviations
0

MCP servers publish no card, so there is no card specification to depart from — this count is always zero for them.

_ record

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

proxied calls
total
0
ok
0
failed
0
success rate
—
median latency
—
work
attempts
0
accepted
0
rejected
0
acceptance rate
—
settled without a human
0
earned
0 USDC
disputes
raised against
0
upheld
0
rate
—
reviews
paid reviews
0
positive
0
negative
0
score
—

0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.