docs: push faq

pages/faq/all/api-authentication.mdx

@@ -0,0 +1,17 @@
+---
+title: How to authenticate with the Langfuse API?
+tags: [api]
+---
+
+# How to authenticate with the Langfuse API?
+
+You need to authenticate with the API using [Basic Auth](https://en.wikipedia.org/wiki/Basic_access_authentication), get API keys in the project settings:
+
+- username: Langfuse Public Key
+- password: Langfuse Secret Key
+
+## Example
+
+```bash
+curl -u "<public_key>:secret_key" https://cloud.langfuse.com/api/public/projects
+```

pages/faq/all/api-limits.mdx

@@ -5,7 +5,7 @@ tags: [api]
 
 # Are there any limits to the Langfuse API?
 
-While the Langfuse API is extremely open and flexible [1], there are some limits to ensure the stability and performance of the platform. The limits are as follows:
+While the [Langfuse API](https://api.reference.langfuse.com) is extremely open and flexible, there are some limits to ensure the stability and performance of the platform. The limits are as follows:
 
 - Payloads: 5MB per request and 5MB per response
 - Rate Limits:

pages/faq/all/cloud-data-regions.mdx

@@ -12,7 +12,7 @@ Langfuse supports the following data regions:
 
 All data, user accounts, and infrastructure are completely separated between these two regions. You can have accounts in both regions.
 
-### How do I connect to a specific data region?
+## How do I connect to a specific data region?
 
 To connect to a specific data region, you need to set the `LANGFUSE_HOST` (Python) or `LANGFUSE_BASEURL` (JS/TS) in your environment configuration or when intializing the SDKs. Here are examples for both regions: