---
type: "firecrawl-provider"
description: "Free sound effects and music from Free Sounds Library (freesoundslibrary.com, about 3,400 posts, updated daily) through its public WordPress REST API. Search by keyword, browse a category or tag or the newest posts, and read one sound with its licence (CC BY 4.0 or CC BY-NC 4.0, labelled per sound), a ready attribution line, duration, bit rate, file size, MP3 preview and the free download link. Noncommercial sounds are left out of search unless asked for and are always flagged. Audio files are linked, never fetched."
use_when: "Free sound effects and music from Free Sounds Library (freesoundslibrary.com, about 3,400 posts, updated daily) through its public WordPress REST API. Search by keyword, browse a category or tag or the newest posts, and read one sound with its licence (CC BY 4.0 or CC BY-NC 4.0, labelled per sound), a ready attribution line, duration, bit rate, file size, MP3 preview and the free download link. Noncommercial sounds are left out of search unless asked for and are always flagged. Audio files are linked, never fetched."
categories: "Entertainment"
capabilities: 2
credits_per_call: 5
---
# Free Sounds Library on Firecrawl Alexandria

Free sound effects and music from Free Sounds Library (freesoundslibrary.com, about 3,400 posts, updated daily) through its public WordPress REST API. Search by keyword, browse a category or tag or the newest posts, and read one sound with its licence (CC BY 4.0 or CC BY-NC 4.0, labelled per sound), a ready attribution line, duration, bit rate, file size, MP3 preview and the free download link. Noncommercial sounds are left out of search unless asked for and are always flagged. Audio files are linked, never fetched.

- Categories: Entertainment
- Category index: [Entertainment category](https://firecrawl.dev/alexandria/agents/categories/entertainment)
- Provider key: `freesoundslibrary-com`
- Access: Firecrawl credits
- Cost: 5 credits per call

## More

- [Human guide](https://firecrawl.dev/app/alexandria/freesoundslibrary-com)
- [OpenAPI spec](https://firecrawl.dev/alexandria/agents/providers/freesoundslibrary-com/openapi.json)

## Capabilities

- [Get sound](https://firecrawl.dev/alexandria/agents/providers/freesoundslibrary-com/sound-effects/get_sound): Read one Free Sounds Library sound by post id or page URL: title, description, category, tags, publish and modified dates, licence object (code, name, licence URL, commercial_use, attribution_required, restricted, note), attribution line, duration, bit rate, file size, MP3 preview, the free download link and any paid WAV link. Audio files are linked, never fetched.
- [Search sounds](https://firecrawl.dev/alexandria/agents/providers/freesoundslibrary-com/sound-effects/search_sounds): Find Free Sounds Library sounds by keyword, category or tag, or list the newest posts, with paging (per_page up to 50, continuation). Each sound carries title, description, category, tags, publish date, the licence object, an attribution line, duration, bit rate, file size, page URL, MP3 preview and the free download link. Noncommercial (CC BY-NC 4.0) and unlicensed sounds are omitted by default and counted in omitted_restricted.

## 1. Choose this provider when

Free sound effects and music from Free Sounds Library (freesoundslibrary.com, about 3,400 posts, updated daily) through its public WordPress REST API. Search by keyword, browse a category or tag or the newest posts, and read one sound with its licence (CC BY 4.0 or CC BY-NC 4.0, labelled per sound), a ready attribution line, duration, bit rate, file size, MP3 preview and the free download link. Noncommercial sounds are left out of search unless asked for and are always flagged. Audio files are linked, never fetched.

## 2. Minimal request

Call `POST https://api.firecrawl.dev/v2/scrape` with `{ alexandria: { provider, capability, options } }`. For a batch, send `{ alexandria: [...] }` with up to 10 calls.

```json
{
  "provider": "freesoundslibrary-com",
  "capability": "sound-effects/get_sound",
  "options": {
    "id": 29810
  }
}
```

## 3. Add provider options

Use only the options needed for the task:

- `id` (number): WordPress post id, e.g. 29810 (the id search_sounds returns). Example: `10`
- `url` (string): A sound page URL, e.g. https://www.freesoundslibrary.com/deep-scary-ship-fog-horn-sound-effect/. Example: `<url>`

## 4. Request through your preferred interface

### JavaScript

```javascript
const result = await firecrawl.scrape({
  alexandria: {
    provider: "freesoundslibrary-com",
    capability: "sound-effects/get_sound",
    options: {
      id: 29810,
    },
  },
});
```

### Python

```python
result = firecrawl.scrape_alexandria({
  "provider": "freesoundslibrary-com",
  "capability": "sound-effects/get_sound",
  "options": {
    "id": 29810
  }
})
```

### cURL

```sh
curl https://api.firecrawl.dev/v2/scrape \
  -H "Authorization: Bearer $FIRECRAWL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "alexandria": {
    "provider": "freesoundslibrary-com",
    "capability": "sound-effects/get_sound",
    "options": {
      "id": 29810
    }
  }
}'
```

### CLI

```sh
firecrawl scrape 'freesoundslibrary-com/sound-effects/get_sound' \
  --options '{"id":29810}'
```


### MCP

Call the FCX MCP retrieve tool with this object:

```json
{
  "provider": "freesoundslibrary-com",
  "capability": "sound-effects/get_sound",
  "options": {
    "id": 29810
  }
}
```

Ask for only the returned fields needed by the task.

## 5. Full request shape

```json
{
  "provider": "freesoundslibrary-com",
  "capability": "sound-effects/get_sound",
  "options": {
    "id": 29810
  }
}
```

## 6. Response data

The response includes `success`, `provider`, `capability`, `creditsCost` and `data`. This example shows the provider payload in `data`:

```json
{
  "attribution": "\"Deep Scary Ship Fog Horn Sound Effect\" by Free Sounds Library (https://www.freesoundslibrary.com/deep-scary-ship-fog-horn-sound-effect/), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Downloaded from www.freesoundslibrary.com",
  "bit_rate_kbps": "320",
  "category": "scary-halloween-sounds",
  "creator": {
    "name": "Free Sounds Library",
    "url": "https://www.freesoundslibrary.com/"
  },
  "description": "Deep scary ship fog horn sound effect. Several deep, powerful fog horn blasts echo from a ship, creating a dark and frightening atmosphere. The low, ominous boat horn sounds like a warning signal across the water. This scary ship horn sound effect works well for horror movies, thriller scenes, ghost ships, stormy ocean videos, and suspenseful games. Use these deep maritime blasts to create tension, signal danger, or add an eerie nautical atmosphere to your project. Free MP3 download.",
  "download_container": "zip",
  "download_url": "https://www.freesoundslibrary.com/wp-content/uploads/2026/11/deep-scary-ship-fog-horn-sound-effect.zip",
  "duration_seconds": 14,
  "file_size": "492 kb",
  "formats": [
    "mp3"
  ],
  "id": 29810,
  "license": {
    "attribution_required": true,
    "code": "CC-BY-4.0",
    "commercial_use": true,
    "name": "Attribution 4.0 International (CC BY 4.0)",
    "note": null,
    "restricted": false,
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "modified_at": "2026-11-03T19:43:04Z",
  "observed_at_ms": 1793747906378,
  "page_url": "https://www.freesoundslibrary.com/deep-scary-ship-fog-horn-sound-effect/",
  "preview_url": "https://www.freesoundslibrary.com/wp-content/uploads/2026/11/deep-scary-ship-fog-horn-sound-effect.mp3",
  "published_at": "2026-11-03T19:40:45Z",
  "purchase_url": null,
  "slug": "deep-scary-ship-fog-horn-sound-effect",
  "source_url": "https://www.freesoundslibrary.com/wp-json/wp/v2/posts/29810?_fields=id,date_gmt,modified_gmt,slug,link,title,content,class_list",
  "tags": [
    "alert",
    "blast",
    "cinematic",
    "eerie",
    "fog",
    "harbor",
    "haunting",
    "lowfrequency",
    "maritime",
    "nautical",
    "navigation",
    "ocean",
    "ominous",
    "resonance",
    "seaport",
    "shipwreck",
    "suspense",
    "terror",
    "vessel",
    "warning"
  ],
  "title": "Deep Scary Ship Fog Horn Sound Effect"
}
```

## API reference-derived contract

The following capability contract is generated from the same normalized Alexandria API reference exposed in the API spec.

### Get sound

- Capability: `sound-effects/get_sound`
- Description: Read one Free Sounds Library sound by post id or page URL: title, description, category, tags, publish and modified dates, licence object (code, name, licence URL, commercial_use, attribution_required, restricted, note), attribution line, duration, bit rate, file size, MP3 preview, the free download link and any paid WAV link. Audio files are linked, never fetched.
- Instructions: Licence and credit details for one sound, e.g. https://www.freesoundslibrary.com/deep-scary-ship-fog-horn-sound-effect/ or id 29810.
- Cost: 5 credits per call
- Capability file: [Get sound](https://firecrawl.dev/alexandria/agents/providers/freesoundslibrary-com/sound-effects/get_sound)

Accepted options:
- `id` (number): WordPress post id, e.g. 29810 (the id search_sounds returns). Example: `10`
- `url` (string): A sound page URL, e.g. https://www.freesoundslibrary.com/deep-scary-ship-fog-horn-sound-effect/. Example: `<url>`

Response schema example:
```json
{
  "attribution": "\"Deep Scary Ship Fog Horn Sound Effect\" by Free Sounds Library (https://www.freesoundslibrary.com/deep-scary-ship-fog-horn-sound-effect/), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Downloaded from www.freesoundslibrary.com",
  "bit_rate_kbps": "320",
  "category": "scary-halloween-sounds",
  "creator": {
    "name": "Free Sounds Library",
    "url": "https://www.freesoundslibrary.com/"
  },
  "description": "Deep scary ship fog horn sound effect. Several deep, powerful fog horn blasts echo from a ship, creating a dark and frightening atmosphere. The low, ominous boat horn sounds like a warning signal across the water. This scary ship horn sound effect works well for horror movies, thriller scenes, ghost ships, stormy ocean videos, and suspenseful games. Use these deep maritime blasts to create tension, signal danger, or add an eerie nautical atmosphere to your project. Free MP3 download.",
  "download_container": "zip",
  "download_url": "https://www.freesoundslibrary.com/wp-content/uploads/2026/11/deep-scary-ship-fog-horn-sound-effect.zip",
  "duration_seconds": 14,
  "file_size": "492 kb",
  "formats": [
    "mp3"
  ],
  "id": 29810,
  "license": {
    "attribution_required": true,
    "code": "CC-BY-4.0",
    "commercial_use": true,
    "name": "Attribution 4.0 International (CC BY 4.0)",
    "note": null,
    "restricted": false,
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "modified_at": "2026-11-03T19:43:04Z",
  "observed_at_ms": 1793747906378,
  "page_url": "https://www.freesoundslibrary.com/deep-scary-ship-fog-horn-sound-effect/",
  "preview_url": "https://www.freesoundslibrary.com/wp-content/uploads/2026/11/deep-scary-ship-fog-horn-sound-effect.mp3",
  "published_at": "2026-11-03T19:40:45Z",
  "purchase_url": null,
  "slug": "deep-scary-ship-fog-horn-sound-effect",
  "source_url": "https://www.freesoundslibrary.com/wp-json/wp/v2/posts/29810?_fields=id,date_gmt,modified_gmt,slug,link,title,content,class_list",
  "tags": [
    "alert",
    "blast",
    "cinematic",
    "eerie",
    "fog",
    "harbor",
    "haunting",
    "lowfrequency",
    "maritime",
    "nautical",
    "navigation",
    "ocean",
    "ominous",
    "resonance",
    "seaport",
    "shipwreck",
    "suspense",
    "terror",
    "vessel",
    "warning"
  ],
  "title": "Deep Scary Ship Fog Horn Sound Effect"
}
```

### Search sounds

- Capability: `sound-effects/search_sounds`
- Description: Find Free Sounds Library sounds by keyword, category or tag, or list the newest posts, with paging (per_page up to 50, continuation). Each sound carries title, description, category, tags, publish date, the licence object, an attribution line, duration, bit rate, file size, page URL, MP3 preview and the free download link. Noncommercial (CC BY-NC 4.0) and unlicensed sounds are omitted by default and counted in omitted_restricted.
- Instructions: "free fog horn sound I can use commercially with attribution", "newest sounds on Free Sounds Library", "Free Sounds Library scary halloween sounds", or a pasted freesoundslibrary.com tag, category or search URL.
- Cost: 5 credits per call
- Capability file: [Search sounds](https://firecrawl.dev/alexandria/agents/providers/freesoundslibrary-com/sound-effects/search_sounds)

Accepted options:
- `category` (string): Category slug: ambient-sounds, animal-sounds, asmr-sounds, car-sounds, cartoon-and-funny-sounds, city-sounds, game-and-interface-sounds, home-and-office-sounds, human-sounds, instrumental-music, music-for-games, music-for-kids, notification-sounds, scary-halloween-sounds. Example: `<category>`
- `continuation` (string): Cursor from a previous call. Example: `<continuation>`
- `include_restricted` (boolean): Also return CC BY-NC 4.0 (noncommercial), fair-use and unlicensed sounds, flagged license.restricted. Default false. Example: `false`
- `page` (number): Result page; default 1. Example: `10`
- `per_page` (number): Posts per page before licence filtering; default 20. Example: `10`
- `query` (string): Keywords, e.g. fog horn, door knock, rain. WordPress matches title and content, most relevant first. Example: `<query>`
- `tag` (string): Tag slug such as nautical or rainy-mood (spaces become hyphens). Example: `<tag>`
- `url` (string): A freesoundslibrary.com category page (/<category>/), tag page (/tag/<slug>/), search (/?s=) or the home page, optionally with /page/<n>/. Example: `<url>`

Response schema example:
```json
{
  "category": null,
  "count": 2,
  "include_restricted": false,
  "matched": 5,
  "mode": "search",
  "observed_at_ms": 1793747906345,
  "omitted_restricted": 3,
  "page": 1,
  "per_page": 20,
  "query": "fog horn",
  "sounds": [
    {
      "attribution": "\"Deep Scary Ship Fog Horn Sound Effect\" by Free Sounds Library (https://www.freesoundslibrary.com/deep-scary-ship-fog-horn-sound-effect/), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Downloaded from www.freesoundslibrary.com",
      "bit_rate_kbps": "320",
      "category": "scary-halloween-sounds",
      "creator": {
        "name": "Free Sounds Library",
        "url": "https://www.freesoundslibrary.com/"
      },
      "description": "Deep scary ship fog horn sound effect. Several deep, powerful fog horn blasts echo from a ship, creating a dark and frightening atmosphere. The low, ominous boat horn sounds like a warning signal across the water. This scary ship horn sound effect works well for horror movies, thriller scenes, ghost ships, stormy ocean videos, and suspenseful games. Use these deep maritime blasts to create tension, signal danger, or add an eerie nautical atmosphere to your project. Free MP3 download.",
      "download_container": "zip",
      "download_url": "https://www.freesoundslibrary.com/wp-content/uploads/2026/11/deep-scary-ship-fog-horn-sound-effect.zip",
      "duration_seconds": 14,
      "file_size": "492 kb",
      "formats": [
        "mp3"
      ],
      "id": 29810,
      "license": {
        "attribution_required": true,
        "code": "CC-BY-4.0",
        "commercial_use": true,
        "name": "Attribution 4.0 International (CC BY 4.0)",
        "note": null,
        "restricted": false,
        "url": "https://creativecommons.org/licenses/by/4.0/"
      },
      "modified_at": "2026-11-03T19:43:04Z",
      "page_url": "https://www.freesoundslibrary.com/deep-scary-ship-fog-horn-sound-effect/",
      "preview_url": "https://www.freesoundslibrary.com/wp-content/uploads/2026/11/deep-scary-ship-fog-horn-sound-effect.mp3",
      "published_at": "2026-11-03T19:40:45Z",
      "purchase_url": null,
      "slug": "deep-scary-ship-fog-horn-sound-effect",
      "tags": [
        "alert",
        "blast",
        "cinematic",
        "eerie",
        "fog",
        "harbor",
        "haunting",
        "lowfrequency",
        "maritime",
        "nautical",
        "navigation",
        "ocean",
        "ominous",
        "resonance",
        "seaport",
        "shipwreck",
        "suspense",
        "terror",
        "vessel",
        "warning"
      ],
      "title": "Deep Scary Ship Fog Horn Sound Effect"
    },
    {
      "attribution": "\"Ship Siren Sound\" by Free Sounds Library (https://www.freesoundslibrary.com/ship-siren-sound/), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Downloaded from www.freesoundslibrary.com",
      "bit_rate_kbps": "320",
      "category": "game-and-interface-sounds",
      "creator": {
        "name": "Free Sounds Library",
        "url": "https://www.freesoundslibrary.com/"
      },
      "description": "Sound is a loud, distinctive sound produced by ships, often used as a warning signal in foggy weather or to alert nearby vessels of the ship’s presence. This sound is typically produced by a horn or air-powered siren, and its deep, resonant tone can travel over long distances. It is an important safety feature on maritime vessels to ensure navigation safety and prevent collisions.",
      "download_container": "zip",
      "download_url": "https://www.freesoundslibrary.com/wp-content/uploads/2025/02/ship-siren-sound.zip",
      "duration_seconds": 2,
      "file_size": "84 Kb",
      "formats": [
        "mp3"
      ],
      "id": 18603,
      "license": {
        "attribution_required": true,
        "code": "CC-BY-4.0",
        "commercial_use": true,
        "name": "Attribution 4.0 International (CC BY 4.0)",
        "note": null,
        "restricted": false,
        "url": "https://creativecommons.org/licenses/by/4.0/"
      },
      "modified_at": "2025-02-13T19:38:39Z",
      "page_url": "https://www.freesoundslibrary.com/ship-siren-sound/",
      "preview_url": "https://www.freesoundslibrary.com/wp-content/uploads/2025/02/ship-siren-sound.mp3",
      "published_at": "2025-02-13T19:38:39Z",
      "purchase_url": null,
      "slug": "ship-siren-sound",
      "tags": [
        "alert",
        "horn",
        "loud-siren",
        "resonant-tone",
        "ship-siren-sound",
        "ships-presence",
        "warning-signals"
      ],
      "title": "Ship Siren Sound"
    }
  ],
  "source_url": "https://www.freesoundslibrary.com/wp-json/wp/v2/posts?per_page=20&page=1&search=fog%20horn&_fields=id,date_gmt,modified_gmt,slug,link,title,content,class_list",
  "tag": null,
  "total": 5,
  "total_pages": 1
}
```
