SFXMint MCP server

• Registry namecom.sfxmint/soundsverified in the MCP registry

The registry name sits under sfxmint.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-19
• Tools18
• Server calls itselfsfxmint
• Server version1.8.0
• Protocol version2025-06-18

On 2026-10-19 the server answered initialize and tools/list without a sign-in. First answer in 80 ms.

• Whether its tools do the product's job has not been judged yet.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP score99 of 100answers 100 · definitions 100 · context 90 · connects 100
• Answered100% of days14 of 14 daily checks
• Median first answer362 ms
• Space in an agent's context≈ 4,292 tokensthe definitions of all its tools (10), which an agent carries on every turn
• Tool definitionsA · 100 of 100
• Typed results0 of 10 toolsdeclared outputSchema: results come typed, read once

• Every tool passes all six checks.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• search_sounds

  Free-text search over the SFXMint library of free CC0 sound effects. Use it for sound descriptions, additional constraints or gaps left by another tool. Choose get_role_sound for a named event or get_sound_set for multiple events when…

• get_role_sound

  Choose this when the task calls for a sound for a named event or interaction — a button click, purchase success, error beep, level-up, dialogue blip, notification. Pass the role as plain words: role ids (click, success, purchase-success…

• get_sound

  Get full metadata for one sound by slug, including download URLs, description and measured acoustics (attack/tail/brightness + character labels).

• get_sound_set

  Get a coherent set of sounds for an app or game in one call — one sound per role, with format metadata, hashes and stable download URLs. Use it when the task needs a whole kit; use get_role_sound for one event. Check content_check…

• generate_sound

  Make a new sound effect from a description when the library has nothing suitable (search_sounds has no full match and its closest sounds do not suit; it then returns generate_available). Needs an SFXMint API key and a pass or plan on the…

• get_generation

  Check a generation started with generate_sound or change_sound: status, and fresh download links for the finished takes.

• change_sound

  Change one take of a generation this account made, from the take itself: say what is off in the user's words (change, any language) or name the action. Three versions come back (a light, medium and strong change; for a loop, three seams)…

• start_game_kit

  Start a Game kit: SFXMint plans the sounds one game needs and makes them as CC0 takes to pick from — the same project the user sees on the website. Use it when the user wants sounds for a whole game or scene and the library…

• add_kit_sounds

  Add the user's own list of sounds to a kit (an app's or a game's events: names, optional moments and lengths), or a ready set's events with its library sounds already in use. Names, keys, order and lengths stay the user's; SFXMint writes…

• fill_kit_from_library

  Fill a kit's sounds from the free CC0 library first: each sound without a take is searched by its name and length, and a full match becomes its take in use, free. Answers what matched (let the user listen), the nearest sounds for others…

• find_kit_sound_candidates

  Up to five free library sounds for one kit sound, by its name or your own words, with their length, character and a listening URL. Nothing changes until use_library_sound.

• use_library_sound

  Use a library sound (its slug) as a take of a kit sound, free. It becomes the take in use when the sound has none; otherwise it waits beside the others for the user to compare.

• get_game_kit

  A Game kit's state: its scenes, its sounds (event key, when it plays, status, the takes made with short-lived file links, SHA-256 and length, and the take in use), how its makes are paid (the account's plan's generations of the day, or…

• list_kit_sounds

  List the sounds of a Game kit's scenes, free: after start_game_kit planned the scenes, show them to the user, then call this with the scenes to keep (all by default; the others are switched off). Call get_game_kit after about 15 seconds.

• make_kit_sounds

  Make sounds in a Game kit: each sound gets up to four takes, and each sound made is one generation. Each uses one of the account's plan generations of the day, shared with generate_sound; nothing is charged. Without a plan it answers…

• pick_kit_take

  Use one of a sound's takes in the kit (the first take is used until the user picks). Let the user listen to the takes first.

• change_kit_take

  Change a kit sound's take as it is, free: say what is off in the user's words (change, any language) or name the action. Three versions come back as new takes of the sound (a light, medium and strong change; for a loop, three seamless…

• export_game_kit

  What to put in the project: every included sound's event key and the take in use (file link valid 15 minutes, SHA-256), the sounds not ready yet, and zip_url for one ZIP (download it with the same Authorization header) holding the files…