feat: add Deepgram audio transcription

Co-authored-by: Safzan Pirani <safzanpirani@users.noreply.github.com>

docs/providers/deepgram.md

@@ -0,0 +1,64 @@
+---
+summary: "Deepgram transcription for inbound voice notes"
+read_when:
+  - You want Deepgram speech-to-text for audio attachments
+  - You need a quick Deepgram config example
+---
+# Deepgram (Audio Transcription)
+
+Deepgram is a speech-to-text API. In Clawdbot it is used for **inbound audio/voice note
+transcription** via `tools.media.audio`.
+
+When enabled, Clawdbot uploads the audio file to Deepgram and injects the transcript
+into the reply pipeline (`{{Transcript}}` + `[Audio]` block). This is **not streaming**;
+it uses the pre-recorded transcription endpoint.
+
+Website: https://deepgram.com  
+Docs: https://developers.deepgram.com
+
+## Quick start
+
+1) Set your API key:
+```
+DEEPGRAM_API_KEY=dg_...
+```
+
+2) Enable the provider:
+```json5
+{
+  tools: {
+    media: {
+      audio: {
+        enabled: true,
+        models: [{ provider: "deepgram", model: "nova-3" }]
+      }
+    }
+  }
+}
+```
+
+## Options
+
+- `model`: Deepgram model id (default: `nova-3`)
+- `language`: language hint (optional)
+
+Example with language:
+```json5
+{
+  tools: {
+    media: {
+      audio: {
+        enabled: true,
+        models: [
+          { provider: "deepgram", model: "nova-3", language: "en" }
+        ]
+      }
+    }
+  }
+}
+```
+
+## Notes
+
+- Authentication follows the standard provider auth order; `DEEPGRAM_API_KEY` is the simplest path.
+- Output follows the same audio rules as other providers (size caps, timeouts, transcript injection).

docs/providers/index.md

@@ -34,5 +34,9 @@ Looking for chat channel docs (WhatsApp/Telegram/Discord/Slack/etc.)? See [Chann
 - [GLM models](/providers/glm)
 - [MiniMax](/providers/minimax)
 
+## Transcription providers
+
+- [Deepgram (audio transcription)](/providers/deepgram)
+
 For the full provider catalog (xAI, Groq, Mistral, etc.) and advanced configuration,
 see [Model providers](/concepts/model-providers).