Fretwork Guitar Tools
mcp remote · streamable-http · v1.0.1 · source: crawl
https://mcp.guitarfretwork.com/mcp
Guitar chords from frets, chord shapes, transposing, capo, scales, song keys and practice plans.
Works
100
Verified Oct 31, 2026 · p50 294 ms · p95 303 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'fretwork' |
| tools_listed | 15 | pass | 9 tools |
| schema_complete | 15 | pass | 9 of 9 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 294 ms |
| latency_p95 | 5 | pass | p95 303 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (9)
| Name | Description | Schema |
|---|---|---|
identify_chord | Names the chord a guitarist is holding from the fret on each string (standard tuning), lists its notes and returns a chord diagram. Use when someone asks "what chord is this?" and gives frets like x32 | typed |
get_chord_shapes | Returns playable guitar shapes for a chord name (open position and movable barre shapes), with frets, fingering where known, the notes in the chord and a text chord diagram. Handles major, minor, 7, m | typed |
transpose_chords | Moves a song's chords to a new key. Accepts a chord list, a chord chart with lyrics (chord lines are transposed, lyric lines are kept), or inline [C] chords. Give either from_key and to_key, or a numb | typed |
find_capo | Works out where to put a capo. Give the key you want to sound in (for example to match a singer or a recording) and, optionally, the open-chord key you want to play shapes in. Returns the capo fret, o | typed |
get_scale | Gives the notes of a scale in any key and where they fall on the guitar fretboard (standard tuning), string by string, with root notes marked. Scales: major, natural minor, harmonic minor, melodic min | typed |
find_key | Works out the most likely key of a song from its chord progression, gives each chord its Roman numeral, lists the other chords that belong to the key, and suggests which scale to solo with. | typed |
find_songs | Finds songs a guitarist can play with the chords they already know, from Fretwork's free library of 87 public-domain folk, gospel, blues, campfire and Christmas songs. Each song has chords, key, time | typed |
guitar_level_check | A quick self-assessment that places a guitarist on Fretwork's 10-stage learning path (Stage 0 Getting Started to Stage 9 Artistry) from yes/no answers to up to nine questions about what they can alrea | typed |
make_practice_plan | Builds a daily guitar practice routine and a 4-week focus plan sized to the player's level, the minutes they have each day and their goal (songs, strumming, fingerpicking, lead, barre chords, theory o | typed |
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