feat(tools): add Voxtral TTS provider (Mistral AI)

hermes_cli/config.py

@@ -458,7 +458,7 @@ DEFAULT_CONFIG = {
     
     # Text-to-speech configuration
     "tts": {
-        "provider": "edge",  # "edge" (free) | "elevenlabs" (premium) | "openai" | "neutts" (local)
+        "provider": "edge",  # "edge" (free) | "elevenlabs" (premium) | "openai" | "minimax" | "mistral" | "neutts" (local)
         "edge": {
             "voice": "en-US-AriaNeural",
             # Popular: AriaNeural, JennyNeural, AndrewNeural, BrianNeural, SoniaNeural
@@ -472,6 +472,10 @@ DEFAULT_CONFIG = {
             "voice": "alloy",
             # Voices: alloy, echo, fable, onyx, nova, shimmer
         },
+        "mistral": {
+            "model": "voxtral-mini-tts-2603",
+            "voice_id": "c69964a6-ab8b-4f8a-9465-ec0925096ec8",  # Paul - Neutral
+        },
         "neutts": {
             "ref_audio": "",  # Path to reference voice audio (empty = bundled default)
             "ref_text": "",   # Path to reference voice transcript (empty = bundled default)
@@ -1016,6 +1020,13 @@ OPTIONAL_ENV_VARS = {
         "password": True,
         "category": "tool",
     },
+    "MISTRAL_API_KEY": {
+        "description": "Mistral API key for Voxtral TTS and transcription (STT)",
+        "prompt": "Mistral API key",
+        "url": "https://console.mistral.ai/",
+        "password": True,
+        "category": "tool",
+    },
     "GITHUB_TOKEN": {
         "description": "GitHub token for Skills Hub (higher API rate limits, skill publish)",
         "prompt": "GitHub Token",

hermes_cli/nous_subscription.py

@@ -143,6 +143,7 @@ def _tts_label(current_provider: str) -> str:
         "openai": "OpenAI TTS",
         "elevenlabs": "ElevenLabs",
         "edge": "Edge TTS",
+        "mistral": "Mistral Voxtral TTS",
         "neutts": "NeuTTS",
     }
     return mapping.get(current_provider or "edge", current_provider or "Edge TTS")
@@ -309,6 +310,7 @@ def get_nous_subscription_features(
         tts_current_provider in {"edge", "neutts"}
         or (tts_current_provider == "openai" and (managed_tts_available or direct_openai_tts))
         or (tts_current_provider == "elevenlabs" and direct_elevenlabs)
+        or (tts_current_provider == "mistral" and bool(get_env_value("MISTRAL_API_KEY")))
     )
     tts_active = bool(tts_tool_enabled and tts_available)
 

hermes_cli/setup.py

@@ -557,6 +557,8 @@ def _print_setup_summary(config: dict, hermes_home):
         tool_status.append(("Text-to-Speech (OpenAI)", True, None))
     elif tts_provider == "minimax" and get_env_value("MINIMAX_API_KEY"):
         tool_status.append(("Text-to-Speech (MiniMax)", True, None))
+    elif tts_provider == "mistral" and get_env_value("MISTRAL_API_KEY"):
+        tool_status.append(("Text-to-Speech (Mistral Voxtral)", True, None))
     elif tts_provider == "neutts":
         try:
             import importlib.util
@@ -1044,6 +1046,7 @@ def _setup_tts_provider(config: dict):
         "elevenlabs": "ElevenLabs",
         "openai": "OpenAI TTS",
         "minimax": "MiniMax TTS",
+        "mistral": "Mistral Voxtral TTS",
         "neutts": "NeuTTS",
     }
     current_label = provider_labels.get(current_provider, current_provider)
@@ -1064,10 +1067,11 @@ def _setup_tts_provider(config: dict):
             "ElevenLabs (premium quality, needs API key)",
             "OpenAI TTS (good quality, needs API key)",
             "MiniMax TTS (high quality with voice cloning, needs API key)",
+            "Mistral Voxtral TTS (multilingual, native Opus, needs API key)",
             "NeuTTS (local on-device, free, ~300MB model download)",
         ]
     )
-    providers.extend(["edge", "elevenlabs", "openai", "minimax", "neutts"])
+    providers.extend(["edge", "elevenlabs", "openai", "minimax", "mistral", "neutts"])
     choices.append(f"Keep current ({current_label})")
     keep_current_idx = len(choices) - 1
     idx = prompt_choice("Select TTS provider:", choices, keep_current_idx)
@@ -1145,6 +1149,18 @@ def _setup_tts_provider(config: dict):
                 print_warning("No API key provided. Falling back to Edge TTS.")
                 selected = "edge"
 
+    elif selected == "mistral":
+        existing = get_env_value("MISTRAL_API_KEY")
+        if not existing:
+            print()
+            api_key = prompt("Mistral API key for TTS", password=True)
+            if api_key:
+                save_env_value("MISTRAL_API_KEY", api_key)
+                print_success("Mistral TTS API key saved")
+            else:
+                print_warning("No API key provided. Falling back to Edge TTS.")
+                selected = "edge"
+
     # Save the selection
     if "tts" not in config:
         config["tts"] = {}

hermes_cli/tools_config.py

@@ -181,6 +181,14 @@ TOOL_CATEGORIES = {
                 ],
                 "tts_provider": "elevenlabs",
             },
+            {
+                "name": "Mistral (Voxtral TTS)",
+                "tag": "Multilingual, native Opus, needs MISTRAL_API_KEY",
+                "env_vars": [
+                    {"key": "MISTRAL_API_KEY", "prompt": "Mistral API key", "url": "https://console.mistral.ai/"},
+                ],
+                "tts_provider": "mistral",
+            },
         ],
     },
     "web": {