# Loudly Music API vs Stable Audio API (slim)

> Stable Audio API has a score of 50.3 (D) against Loudly Music API's 38.5 (E). Both do audio music. The largest gap is reliability, 50 points. Category scores, facts, verdicts and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/loudly-vs-stable-audio.md (~1,500 tokens) · this version ~330 tokens · JSON https://www.anchorterminal.com/compare/loudly-vs-stable-audio.json · canonical https://www.anchorterminal.com/compare/loudly-vs-stable-audio
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

Stable Audio API has a score of 50.3 (D) against Loudly Music API's 38.5 (E). Both do audio music. The largest gap is reliability, 50 points.

- Loudly Music API: E 38.5, rank #429 of 452 · https://www.anchorterminal.com/tools/loudly.min.md
- Stable Audio API: D 50.3, rank #362 of 452 · https://www.anchorterminal.com/tools/stable-audio.min.md
- Pick Loudly Music API for security & auth (+5), payments & pricing (+10). Pick Stable Audio API for reliability (+50), agent ergonomics (+9), maintenance & community (+12), transparency & trust (+9).

| Category | Loudly Music API | Stable Audio API |
| --- | --- | --- |
| Reliability (16%) | 15 | 65 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 75 | 79 |
| Agent ergonomics (13%) | 51 | 60 |
| Security & auth (14%) | 35 | 30 |
| Payments & pricing (10%) | 30 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 3 | 15 |
| Transparency & trust (7%) | 56 | 65 |