> Portal Navigation:
> 
> - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version.
> - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages).
> - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`).
> - Top-level index of all portals: https://dev.wix.com/docs/llms.txt
> - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt

## Resource: External Services



## Article: External Services

## Article Link: https://dev.wix.com/docs/velo/articles/api-overview/external-services.md

## Article Content:

# External Services

Extend your site’s functionality by working with external services. Fetch resources, expose an API of your site’s functionality, integrate with external databases, work with 3rd party site monitoring, and store your private API keys for secure use in your code.

*   **[wix-fetch](https://www.wix.com/velo/reference/wix-fetch.html)**
*   **[wix-http-functions](https://www.wix.com/velo/reference/wix-http-functions.html)**
*   **[external-database-collections](https://www.wix.com/velo/reference/spis/external-database-collections)**
*   **[site-monitoring](https://www.wix.com/velo/reference/spis/site-monitoring)**
*   **[wix-secrets-backend](https://www.wix.com/velo/reference/wix-secrets-backend)**