docs: add 302ai provider (#8142)

packages/web/src/content/docs/providers.mdx

@@ -95,6 +95,33 @@ Don't see a provider here? Submit a PR.
 
 ---
 
+### 302.AI
+
+1. Head over to the [302.AI console](https://302.ai/), create an account, and generate an API key.
+
+2. Run the `/connect` command and search for **302.AI**.
+
+   ```txt
+   /connect
+   ```
+
+3. Enter your 302.AI API key.
+
+   ```txt
+   ┌ API key
+   │
+   │
+   └ enter
+   ```
+
+4. Run the `/models` command to select a model.
+
+   ```txt
+   /models
+   ```
+
+---
+
 ### Amazon Bedrock
 
 To use Amazon Bedrock with OpenCode: