# 99Sounds — card for AI agents

Free downloadable sound effect libraries, sample packs and VST plugins, royalty-free for personal and commercial projects.

Category: Sound effects · maker 99Sounds · checked 2026-10-14

## Price
- Price: Free
- Free tier: All sounds and plugins are free to download

## License
99Sounds License (royalty-free) — https://99sounds.org/license/

- commercial: **yes** (Commercial use OK)
  > All audio files and plugins available for download via 99Sounds are royalty-free for personal and commercial projects.
  (https://99sounds.org/license/)
- attribution: **no** (No credit needed)
  > Giving credit to 99Sounds or the individual sound library creator is not obligatory.
  (https://99sounds.org/license/)
- in app: **conditions** (Ship inside your app with conditions)
  > You may modify audio files according to your requirements and use them for projects like game development, YouTube videos, composition, music production, podcasts, sound design, and more.
  (https://99sounds.org/license/)
- youtube: **yes** (OK in monetized YouTube videos)
  > You may modify audio files according to your requirements and use them for projects like game development, YouTube videos, composition, music production, podcasts, sound design, and more.
  (https://99sounds.org/license/)

## Rules to follow
- Do not sell or redistribute the audio files on their own or as a separate attachment, even for free.
- Do not use the sounds to build noise, white noise, sleep sound or similar apps.
- Credit is optional; you may mention 99Sounds or the library author in the project description.
- Bundle the sounds only as part of your own project, such as a game, video or podcast.

## How an agent gets files
- Manual download (ZIP archive) from the library pages on 99sounds.org, e.g. https://99sounds.org/free-sound-effects/ (sign-in: none)
- Formats: wav
- Not allowed: Don't sell or redistribute the audio files on their own or as a separate attachment, even for free.
- Not allowed: Don't use the sounds to build noise, white noise, sleep sound or similar apps.
- Not allowed: Credit is optional.

## How to connect
- Download only
- Website: https://99sounds.org

## Notes
Added automatically: a well-known source in its category. License read from the official pages.

## Lines to paste into your prompt or AGENTS.md

```
- 99Sounds (Sound effects). Free downloadable sound effect libraries, sample packs and VST plugins, royalty-free for personal and commercial projects. Price: free; commercial use OK; no credit needed; ship inside your app with conditions.
  Connect: download from https://99sounds.org (no API).
  Get files: Manual download (ZIP archive) from the library pages on 99sounds.org, e.g. https://99sounds.org/free-sound-effects/ (wav).
  Not allowed: Don't sell or redistribute the audio files on their own or as a separate attachment, even for free.
  Not allowed: Don't use the sounds to build noise, white noise, sleep sound or similar apps.
  Not allowed: Credit is optional.
  Rule: Do not sell or redistribute the audio files on their own or as a separate attachment, even for free.
  Rule: Do not use the sounds to build noise, white noise, sleep sound or similar apps.
  Rule: Credit is optional; you may mention 99Sounds or the library author in the project description.
  Rule: Bundle the sounds only as part of your own project, such as a game, video or podcast.
  License: https://99sounds.org/license/ (checked 2026-10-14; details: https://agentgid.com/assets/99sounds/)
```

## Links
- AgentGid page: https://agentgid.com/assets/99sounds/
- Is it free for commercial use? https://agentgid.com/assets/99sounds/commercial-use/
- Source: https://99sounds.org
- Source: https://99sounds.org/license/
- Source: https://99sounds.org/license

---
AgentGid's catalog is curated: every entry was checked against the maker's official pages (registry, repository, license and pricing pages) on the date shown; a license value shows the quote it stands on wherever AgentGid has one. Usage numbers come from AgentGid's own scan of public repositories set up for AI coding agents. Claims by makers are reported, not tested by AgentGid.