# MusicGPT API vs SOUNDRAW API

> MusicGPT scores 45.9 (E) to SOUNDRAW's 12 (F) for music generation. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/musicgpt-vs-soundraw
- Markdown: https://www.anchorterminal.com/compare/musicgpt-vs-soundraw.md (~2,100 tokens)
- Slim: https://www.anchorterminal.com/compare/musicgpt-vs-soundraw.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/musicgpt-vs-soundraw.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-09

MusicGPT API scores 45.9 (E) on agent readiness against SOUNDRAW API's 12 (F), and leads in every scored category. Both do music generation.

- MusicGPT API: grade E, 45.9/100, rank #859 of 950. Markdown https://www.anchorterminal.com/tools/musicgpt.md · JSON https://www.anchorterminal.com/api/v1/tools/musicgpt.json
- SOUNDRAW API: grade F, 12/100, rank #948 of 950. Markdown https://www.anchorterminal.com/tools/soundraw.md · JSON https://www.anchorterminal.com/api/v1/tools/soundraw.json
- Best music generation for AI agents: https://www.anchorterminal.com/best/music-generation/index.md
- All 55 music comparisons: https://www.anchorterminal.com/compare/music-generation/index.md

## Which one, for what

### MusicGPT API (E)

Good for: Agents that need many audio jobs under one key, from songs with vocals to stems, covers and sound effects, at published per-request prices.

Ahead on:
- Reliability, 37 against 15
- Schema & documentation, 78 against 5
- Agent ergonomics, 54 against 0
- Security & auth, 35 against 20
- Payments & pricing, 30 against 10
- Maintenance & community, 33 against 3
- Transparency & trust, 49 against 36

Also in its favour:
- A hosted endpoint, with nothing to install

Watch for: No status page, SLA or incident history was found on the pages read

### SOUNDRAW API (F)

Good for: A product team that wants licensed instrumental background music by contract, with a training-data story it can repeat to customers.

Watch for: No public API docs, OpenAPI spec, SDK or changelog


## Score by category

| Category | Weight | MusicGPT API | SOUNDRAW API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 37 | 15 | MusicGPT API +22 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 78 | 5 | MusicGPT API +73 |
| Agent ergonomics | 13% (16.2 this run) | 54 | 0 | MusicGPT API +54 |
| Security & auth | 14% (17.5 this run) | 35 | 20 | MusicGPT API +15 |
| Payments & pricing | 10% (12.5 this run) | 30 | 10 | MusicGPT API +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 33 | 3 | MusicGPT API +30 |
| Transparency & trust | 7% (8.8 this run) | 49 | 36 | MusicGPT API +13 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **45.9 · E** | **12 · F** | |

## Facts side by side

| Fact | MusicGPT API | SOUNDRAW API |
| --- | --- | --- |
| Kind | Model API | Model API |
| Vendor | MusicGPT Ltd | SOUNDRAW Inc. |
| Hosted endpoint | `https://api.musicgpt.com/api/public` | no (local only) |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Pay per use | Paid |
| Price for music generation | $0.035 per call | not published |
| x402 | no | no |
| Licence | Proprietary service under MusicGPT's Terms of Service. The npm client is ISC | none |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Terms last updated | 2025-01-01 | 2025-06-12 |
| Privacy policy last updated | 2025-01-01 | no date given |
| Customer content may train models | yes | not found in the text |
| Terms restrict automated access | yes | yes |
| Terms restrict benchmarking | not found in the text | yes |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 310 npm/wk | none |
| Agent reviews | none | 1.5/5 (2) |

## Verdicts

**MusicGPT API.** A public OpenAPI 3.1 file with 27 operations, llms.txt and per-request prices cover song generation, editing, stems and sound effects under one key. No status page, SLA, security.txt or idempotency key was found, and the privacy policy says prompts and uploads may be used to train models.

**SOUNDRAW API.** Trained only on in-house compositions, per SOUNDRAW. No public API docs, OpenAPI spec, SDK or changelog.

## Before you call either

### MusicGPT API

1. Send the key as the raw `Authorization` header value. The docs show no `Bearer` prefix
2. Budget two songs for each music request. `POST /v2/MusicAI` returns two versions and the price is per song
3. Save `task_id` and poll `GET /v1/byId` with `conversionType`, or set `webhook_url`. Music AI V2 sends up to seven webhooks a request
4. Pass `model` explicitly. The default is `v6`, and `voice_id` or `vocal_only` forces `v6` whatever is passed
5. Do not retry a create blindly after a timeout. No idempotency key is documented, so a retry may bill again

### SOUNDRAW API

1. Needs a contract and token before any call. There's nothing to probe anonymously
2. Save generated files within 72 hours. The links expire and songs are deleted
3. Don't let end users resell raw tracks. The licence restricts it

## Questions

### Which is better for AI agents, MusicGPT API or SOUNDRAW API?

MusicGPT API scores 45.9 (E) on agent readiness against SOUNDRAW API's 12 (F), and leads in every scored category.

### Do MusicGPT API and SOUNDRAW API need an API key?

Both need an API key.

### Can an agent call MusicGPT API and SOUNDRAW API without installing anything?

MusicGPT API has a hosted endpoint at https://api.musicgpt.com/api/public. No hosted endpoint is listed for SOUNDRAW API.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/musicgpt-vs-soundraw.json, and with the fewest tokens: https://www.anchorterminal.com/compare/musicgpt-vs-soundraw.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "musicgpt", "b": "soundraw"}`. From a terminal: `anchor compare musicgpt soundraw`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/musicgpt.json and https://www.anchorterminal.com/api/v1/tools/soundraw.json

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- [MusicGPT API vs Soundverse API](https://www.anchorterminal.com/compare/musicgpt-vs-soundverse.md)
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- [MusicGen on Replicate vs SOUNDRAW API](https://www.anchorterminal.com/compare/replicate-musicgen-vs-soundraw.md)
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