How do I install the Ace Music skill?

Run npx skillmds@latest add modbender/ace-music in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Ace Music safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: executes scripts, makes network calls, reads secrets. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Ace Music?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Ace Music free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Ace Music?

modbender (@modbender) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Ace Music by modbender — Agent Skill

Name: Ace Music
Rating: 4.2 (5 reviews)
Author: modbender

Ace Music

Generate AI music using ACE-Step 1.5 via ACE Music's free API. Use when the user asks to create, generate, or compose music, songs, beats, instrumentals, or audio tracks. Supports lyrics, style prompts, covers, and repainting. Free API, no cost.

modbender Updated Sep 9, 2026 12 repo stars

File contents

ACE Music - AI Music Generation

Generate music via ACE Music's free hosted API (ACE-Step 1.5 model).

Setup

API Key is stored in env ACE_MUSIC_API_KEY. If not set:

Open https://acemusic.ai/playground/api-key in the browser for the user
Ask them to sign up (free) and paste the API key
Store it: export ACE_MUSIC_API_KEY=<key> or add to TOOLS.md

Quick Generation

Use scripts/generate.sh for one-shot generation:

# Simple prompt (AI decides everything)
scripts/generate.sh "upbeat pop song about summer" --duration 30 --output summer.mp3

# With lyrics
scripts/generate.sh "gentle acoustic ballad, female vocal" \
  --lyrics "[Verse 1]\nSunlight through the window\n\n[Chorus]\nWe are the dreamers" \
  --duration 60 --output ballad.mp3

# Instrumental only
scripts/generate.sh "lo-fi hip hop beats, chill, rainy day" --instrumental --duration 120 --output lofi.mp3

# Natural language (AI writes everything)
scripts/generate.sh "write me a jazz song about coffee" --sample-mode --output jazz.mp3

# Specific settings
scripts/generate.sh "rock anthem" --bpm 140 --key "E minor" --language en --seed 42 --output rock.mp3

# Multiple variations
scripts/generate.sh "electronic dance track" --batch 3 --output edm.mp3

Script outputs file path(s) to stdout. Send the file to the user.

Advanced Usage (curl/direct API)

For covers, repainting, or audio input — see references/api-docs.md for full API spec.

Key task types:

text2music (default) — generate from text/lyrics
cover — cover an existing song (requires audio input)
repaint — modify a section of existing audio

Parameters Guide

Want	Use
Specific style	Describe in prompt: "jazz, saxophone solo, smoky bar"
Custom lyrics	`--lyrics "[Verse]...[Chorus]..."`
AI writes everything	`--sample-mode`
No vocals	`--instrumental`
Longer songs	`--duration 120` (seconds)
Specific tempo	`--bpm 120`
Specific key	`--key "C major"`
Multiple outputs	`--batch 3`
Reproducible	`--seed 42`
Non-English vocals	`--language ja` (zh, en, ja, ko, etc.)

Notes

API is free forever (confirmed by ACE Music team)
Base URL: https://api.acemusic.ai
Audio returned as base64 MP3, decoded automatically by the script
Duration: if omitted, AI decides based on content
For best results, use tagged mode (prompt + lyrics separated)

---name: ace-musicdescription: Generate AI music using ACE-Step 1.5 via ACE Music's free API. Use when the user asks to create, generate, or compose music, songs, beats, instrumentals, or audio tracks. Supports lyrics, style prompts, covers, and repainting. Free API, no cost.--- # ACE Music - AI Music Generation Generate music via ACE Music's free hosted API (ACE-Step 1.5 model). ## Setup **API Key** is stored in env `ACE_MUSIC_API_KEY`. If not set: 1. Open https://acemusic.ai/playground/api-key in the browser for the user 2. Ask them to sign up (free) and paste the API key 3. Store it: `export ACE_MUSIC_API_KEY=<key>` or add to TOOLS.md ## Quick Generation Use `scripts/generate.sh` for one-shot generation: ```bash # Simple prompt (AI decides everything) scripts/generate.sh "upbeat pop song about summer" --duration 30 --output summer.mp3 # With lyrics scripts/generate.sh "gentle acoustic ballad, female vocal" \ --lyrics "[Verse 1]\nSunlight through the window\n\n[Chorus]\nWe are the dreamers" \ --duration 60 --output ballad.mp3 # Instrumental only scripts/generate.sh "lo-fi hip hop beats, chill, rainy day" --instrumental --duration 120 --output lofi.mp3 # Natural language (AI writes everything) scripts/generate.sh "write me a jazz song about coffee" --sample-mode --output jazz.mp3 # Specific settings scripts/generate.sh "rock anthem" --bpm 140 --key "E minor" --language en --seed 42 --output rock.mp3 # Multiple variations scripts/generate.sh "electronic dance track" --batch 3 --output edm.mp3 ``` Script outputs file path(s) to stdout. Send the file to the user. ## Advanced Usage (curl/direct API) For covers, repainting, or audio input — see `references/api-docs.md` for full API spec. Key task types: - `text2music` (default) — generate from text/lyrics - `cover` — cover an existing song (requires audio input) - `repaint` — modify a section of existing audio ## Parameters Guide | Want | Use | |------|-----| | Specific style | Describe in prompt: "jazz, saxophone solo, smoky bar" | | Custom lyrics | `--lyrics "[Verse]...[Chorus]..."` | | AI writes everything | `--sample-mode` | | No vocals | `--instrumental` | | Longer songs | `--duration 120` (seconds) | | Specific tempo | `--bpm 120` | | Specific key | `--key "C major"` | | Multiple outputs | `--batch 3` | | Reproducible | `--seed 42` | | Non-English vocals | `--language ja` (zh, en, ja, ko, etc.) | ## Notes - API is **free forever** (confirmed by ACE Music team) - Base URL: `https://api.acemusic.ai` - Audio returned as base64 MP3, decoded automatically by the script - Duration: if omitted, AI decides based on content - For best results, use tagged mode (prompt + lyrics separated)

Frequently asked questions