> ## Documentation Index > Fetch the complete documentation index at: https://docs.lehar.ai/llms.txt > Use this file to discover all available pages before exploring further. # List models > Returns the LLM/STT/TTS provider, model, voice, and speaker reference data that drives the agent-editor dropdowns (plus WhatsApp reply-LLM options). Read-only; readable by anyone who can view agents. Scope `sessions:read`. ## OpenAPI ````yaml /api-reference/openapi.json get /catalog/models openapi: 3.1.0 info: title: Lehar API version: v0 description: >- Customer-facing REST API for the Lehar voice-AI platform. Platform-admin endpoints are intentionally excluded from this reference. Regenerate with `npm run sync:openapi`. servers: - url: https://api.lehar.ai/ca/api/v0 security: - ApiKeyAuth: [] - BearerAuth: [] paths: /catalog/models: get: tags: - Catalog summary: List models description: >- Returns the LLM/STT/TTS provider, model, voice, and speaker reference data that drives the agent-editor dropdowns (plus WhatsApp reply-LLM options). Read-only; readable by anyone who can view agents. Scope `sessions:read`. operationId: get_model_catalog_ca_api_v0_catalog_models_get responses: '200': description: The agent-editor model catalog. content: application/json: schema: type: object properties: llm: type: object properties: providers: type: array items: type: object properties: provider: type: string models: type: array items: type: string default_model: type: string gemini_voices: type: array items: type: string gemini_default_voice: type: string sarvam_reasoning_efforts: type: array items: type: object properties: value: type: string label: type: string sarvam_default_reasoning_effort: type: string stt: type: object properties: providers: type: array items: type: object properties: provider: type: string models: type: array items: type: string default_model: type: string tts: type: object properties: providers: type: array items: type: string edge_voices: type: array items: type: string murf_voices: type: array items: type: string murf_styles: type: array items: type: string elevenlabs_voices: type: array items: type: object properties: value: type: string label: type: string elevenlabs_models: type: array items: type: object properties: value: type: string label: type: string kokoro_voices: type: array items: type: string qwen3_voices: type: array items: type: string qwen3_models: type: array items: type: object properties: value: type: string label: type: string qwen3_languages: type: array items: type: object properties: value: type: string label: type: string sarvam_models: type: array items: type: object properties: value: type: string label: type: string sarvam_languages: type: array items: type: object properties: value: type: string label: type: string sarvam_speakers: type: array items: type: string sarvam_speakers_by_model: type: object additionalProperties: type: array items: type: string default_voice_by_provider: type: object additionalProperties: type: string default_speaker: type: string default_speaker_by_model: type: object additionalProperties: type: string default_model: type: string default_elevenlabs_model: type: string pronunciation_dictionary_supported: type: boolean pronunciation_dictionary_ipa_providers: type: array items: type: string whatsapp_llm_models: type: array items: type: string whatsapp_llm: type: object properties: providers: type: array items: type: object properties: provider: type: string models: type: array items: type: string default_model: type: string example: llm: providers: - provider: gemini models: - gemini-2.5-flash - gemini-2.5-flash-lite - gemini-3.1-flash-lite - gemini-3.5-flash - gemini-3.5-flash-lite - gemini-3.6-flash - gemini-3.1-pro-preview - gemma-4-26b-a4b-it - gemini-2.5-flash-native-audio-preview-12-2025 - gemini-3.1-flash-live-preview default_model: gemini-2.5-flash - provider: groq models: - llama-3.1-8b-instant - llama-3.3-70b-versatile - qwen/qwen3.6-27b default_model: llama-3.1-8b-instant - provider: livekit models: - google/gemma-4-31b-it - google/gemini-3.1-flash-lite - openai/gpt-5.2-chat-latest - xai/grok-4-1-fast-non-reasoning - deepseek-ai/deepseek-v3.1 default_model: google/gemma-4-31b-it - provider: openai models: - openai/gpt-5.2-chat-latest - openai/gpt-5.2 - openai/gpt-4.1-mini default_model: openai/gpt-5.2-chat-latest - provider: ollama models: - gemma4 - phi4-mini - qwen:8b default_model: gemma4 - provider: sarvam models: - sarvam-105b-conversations - sarvam-105b - gemma4 default_model: sarvam-105b-conversations gemini_voices: - Puck - Charon - Kore - Fenrir - Aoede - Zephyr - Leda - Orus - Autonoe - Umbriel - Enceladus - Algieba - Despina - Callirrhoe - Iapetus - Sulafat - Vindemiatrix - Zubenelgenubi - Sadachbia - Erinome - Gacrux - Achernar gemini_default_voice: Kore sarvam_reasoning_efforts: - value: low label: Low — fastest - value: medium label: Medium - value: high label: High — most thorough - value: 'off' label: Off — no thinking sarvam_default_reasoning_effort: low stt: providers: - provider: livekit models: - deepgram/nova-3 default_model: deepgram/nova-3 - provider: sarvam models: - saaras:v3-realtime - saaras:v3 default_model: saaras:v3-realtime - provider: whisper models: - tiny - base - medium - large-v3-turbo default_model: base tts: providers: - livekit - sarvam - murf - elevenlabs - edge - piper - kokoro - qwen3 edge_voices: - en-IN-NeerjaNeural - en-IN-PrabhatNeural murf_voices: - en-IN-anisha - en-IN-abhinav - en-IN-anusha - en-IN-nikhil - en-IN-pooja - en-IN-samar murf_styles: - Conversational - Promo - Narration elevenlabs_voices: - value: LZOmv8tnIt32q9IdMoi9 label: Rhea — Indian customer care (F) · needs paid plan - value: boCSv5nkmiy5eQ8AUDRR label: Krish — Indian customer support (M) · needs paid plan - value: EVsUc9VDoheXQmgm2NpK label: >- Aryaman — Indian e-commerce support (M) · needs paid plan - value: iWNf11sz1GrUE4ppxTOL label: Viraj — Indian, warm and lively (M) · needs paid plan - value: 2cdvnKJ5TZi631y5PN1s label: Rahul S — Hindi conversational (M) · needs paid plan - value: EXAVITQu4vr4xnSDxMaL label: Sarah — US English, reassuring (F) - value: cgSgspJ2msm6clMCkdW9 label: Jessica — US English, bright (F) - value: hpp4J3VqNfWAUOO0d1Us label: Bella — US English, professional (F) - value: Xb7hH8MSUJpSbSDYk0k2 label: Alice — UK English, clear (F) - value: cjVigY5qzO86Huf0OWal label: Eric — US English, trustworthy (M) - value: bIHbv24MWmeRgasZH58o label: Will — US English, relaxed (M) - value: nPczCjzI2devNBz1zQrb label: Brian — US English, deep (M) - value: onwK4e9ZLuTAKqWW03F9 label: Daniel — UK English, broadcaster (M) elevenlabs_models: - value: eleven_flash_v2_5 label: Flash v2.5 (lowest latency) - value: eleven_turbo_v2_5 label: Turbo v2.5 (balanced) - value: eleven_multilingual_v2 label: Multilingual v2 (2x cost) - value: eleven_v3 label: v3 (most expressive, 2x cost) kokoro_voices: - af_heart - af_bella - af_nicole - af_sarah - af_sky - am_adam - am_michael - am_echo - am_puck - hf_alpha - hf_beta - hm_omega - hm_psi qwen3_voices: - manish - shail - ojas - shruti - happy - sad qwen3_models: - value: 0.6b label: 0.6B (fast) - value: 1.7b label: 1.7B (quality) qwen3_languages: - value: Auto label: Auto-detect - value: English label: English - value: Chinese label: Chinese - value: Japanese label: Japanese - value: Korean label: Korean - value: German label: German - value: French label: French - value: Russian label: Russian - value: Portuguese label: Portuguese - value: Spanish label: Spanish - value: Italian label: Italian sarvam_models: - value: bulbul:v3 label: Bulbul v3 - value: bulbul:v2 label: Bulbul v2 sarvam_languages: - value: en-IN label: English (en-IN) - value: hi-IN label: Hindi (hi-IN) - value: bn-IN label: Bengali (bn-IN) - value: gu-IN label: Gujarati (gu-IN) - value: kn-IN label: Kannada (kn-IN) - value: ml-IN label: Malayalam (ml-IN) - value: mr-IN label: Marathi (mr-IN) - value: od-IN label: Odia (od-IN) - value: pa-IN label: Punjabi (pa-IN) - value: ta-IN label: Tamil (ta-IN) - value: te-IN label: Telugu (te-IN) sarvam_speakers: - shubh - ritu - rahul - pooja - simran - kavya - amit - ratan - rohan - dev - ishita - shreya - manan - sumit - priya - aditya - kabir - neha - varun - roopa - aayan - ashutosh - advait - amelia - sophia sarvam_speakers_by_model: bulbul:v2: - anushka - manisha - vidya - arya - abhilash - karun - hitesh bulbul:v3: - shubh - ritu - rahul - pooja - simran - kavya - amit - ratan - rohan - dev - ishita - shreya - manan - sumit - priya - aditya - kabir - neha - varun - roopa - aayan - ashutosh - advait - amelia - sophia default_voice_by_provider: murf: en-IN-anisha elevenlabs: LZOmv8tnIt32q9IdMoi9 edge: en-IN-NeerjaNeural kokoro: af_heart qwen3: manish default_speaker: shubh default_speaker_by_model: bulbul:v2: anushka bulbul:v3: shubh default_model: bulbul:v3 default_elevenlabs_model: eleven_flash_v2_5 pronunciation_dictionary_supported: true pronunciation_dictionary_ipa_providers: - murf whatsapp_llm_models: - gemini-2.5-flash - gemini-3.5-flash whatsapp_llm: providers: - provider: gemini models: - gemini-2.5-flash - gemini-3.5-flash default_model: gemini-2.5-flash - provider: sarvam models: - sarvam-105b-conversations default_model: sarvam-105b-conversations '401': description: No valid authentication was supplied. content: application/json: example: error: code: unauthorized message: Authentication required '403': description: The caller lacks the required scope. content: application/json: example: error: code: forbidden message: Scope 'sessions:read' is required '500': description: Unexpected server error. content: application/json: example: error: code: internal_error message: An unexpected error occurred components: securitySchemes: ApiKeyAuth: type: apiKey in: header name: X-API-KEY BearerAuth: type: http scheme: bearer ````