OpenSoundBox — AI song generator MCP Server

Queues a song with real vocals to YOUR finished lyrics and immediately returns a link to its page with two versions to choose from. The song itself is usually ready in 15–60 seconds. LANGUAGE: write the lyrics in the language the person speaks to you (or asks for) and pass its ISO code in `language`. Russian songs live on opensoundbox.ru, all other languages on opensoundbox.com — the server picks the site itself; just give the person the link it returns. 50 languages are supported; checked and sounding good: English, Russian, Spanish, German, French, Italian, Portuguese, Polish, Ukrainian, Chinese, Japanese, Korean, Turkish, Hindi (others may sound less clear). HOW TO WRITE THE LYRICS (the server sings them as is, without edits): - tag sections in square brackets on their own line: [Verse], [Chorus], optionally [Bridge], [Outro]; - clear rhythm and rhyme, 6–10 syllables per line, natural conversational language; - put the person's name, the occasion and details in the lyrics; keep the chorus short, catchy and repeated; - length to match the song: up to 45 s — one 4-line verse, a 4-line chorus, then the chorus again; up to 60 s — one 4-line verse, a 4-line chorus, then the chorus again; up to 120 s — two 4-line verses, a 4-line chorus after each verse, an optional short bridge; up to 240 s — three 4-line verses, a 4-line chorus after each verse, a 2–4 line bridge; up to 300 s — four 4-line verses, a 4-line chorus after each verse (write every chorus repeat in full), a 4-line bridge — about 40 lines in total; - one language and one alphabet per song; don't mix alphabets in one line; - ORIGINAL lines only: lyrics quoting well-known songs or poems are rejected, and so are lyrics with profanity. The sound is set by style, voice and an optional description (instruments, tempo, mood).

Song status by song_id from create_song: queued — waiting in line, singing — being sung, ready — the versions are done (audio links included), failed — it didn't work (reason in message; failed songs aren't counted). Call at most once every 10 seconds. The page link works before the song is ready too.

FEEDBACK ABOUT THIS SERVER ITSELF, not about a song. Call it when a tool behaved differently from its description, when a parameter or response field was missing, or when a refusal came without a clear reason. Be specific: the tool, what you called, what you expected, what you got — a human reads it.