# Adding Functions for Data

You can use custom REST APIs and JS Functions through the Functions sandbox. 

<table data-view="cards"><thead><tr><th></th><th data-hidden data-card-target data-type="content-ref"></th><th data-hidden data-card-cover data-type="files"></th></tr></thead><tbody><tr><td>How to Connect FirebaseDB to AI Agent</td><td><a href="https://app.gitbook.com/s/5BFP5RUm6rTLXk8wUSTf/tools/how-to-use-gooey-functions/how-to-connect-firebasedb-to-copilot">How to connect FirebaseDB to Copilot</a></td><td><a href="https://2450152260-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNWqgWAjD0VVJgjYDpsN5%2Fuploads%2FVryDhxdQjdsnxFatcGqc%2FAccelerator%20videos%20thumbnails.png?alt=media&#x26;token=47d74298-60dd-4493-b992-8e3c7e08fa5f">Accelerator videos thumbnails.png</a></td></tr><tr><td>EXAMPLE: FirebaseDB (POST) </td><td><a href="https://gooey.ai/functions/firebase-rtdb-post-with-cryptohash-8vs0hcmv8fuz/">https://gooey.ai/functions/firebase-rtdb-post-with-cryptohash-8vs0hcmv8fuz/</a></td><td><a href="https://2450152260-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNWqgWAjD0VVJgjYDpsN5%2Fuploads%2FyWiwiRurSqvgBEcK60lb%2Fexamplefirebase.png?alt=media&#x26;token=1e949139-58eb-4a2b-91cc-6878b80eb9e3">examplefirebase.png</a></td></tr><tr><td>EXAMPLE: FirebaseDB (GET) </td><td><a href="https://gooey.ai/functions/firebase-rtdb-get-nurse-julie-with-cryptohash-xfjguuiesy28/">https://gooey.ai/functions/firebase-rtdb-get-nurse-julie-with-cryptohash-xfjguuiesy28/</a></td><td><a href="https://2450152260-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNWqgWAjD0VVJgjYDpsN5%2Fuploads%2FNBFeSPMk13AdW7y1Oib7%2FAccelerator%20videos%20thumbnails%20(2).png?alt=media&#x26;token=f441a3b7-36e4-48bc-871d-aa466e31319c">Accelerator videos thumbnails (2).png</a></td></tr><tr><td>EXAMPLE: Using ISDA Soil API</td><td><a href="https://gooey.ai/functions/isda-soil-api-s1zad30sloo4/">https://gooey.ai/functions/isda-soil-api-s1zad30sloo4/</a></td><td><a href="https://2450152260-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNWqgWAjD0VVJgjYDpsN5%2Fuploads%2FbhSDGn6U4yvYmPBEKR9p%2FAccelerator%20videos%20thumbnails%20(1).png?alt=media&#x26;token=e4b9271b-5695-4e24-8f0d-50a6cc01ab47">Accelerator videos thumbnails (1).png</a></td></tr></tbody></table>