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Sats4AI - Bitcoin-Powered AI Tools

text_to_speech

Text-to-speech with 3 tiers: OmniVoice Global (602+ languages including Yoruba, Bengali, Cebuano, Twi, zero-shot voice cloning, ~102 chars/sat — use 'language' parameter with ISO code), Inworld Premium (#1 ranked TTS ELO 1217, emotion control, 40+ languages, ~15 chars/sat), Minimax Studio (voice cloning from reference clip, 40+ languages, ~5 chars/sat). Adjustable speed (0.5-2.0x). Returns audio URL. Pay with Bitcoin Lightning — no API key or signup needed. When NOT to use: not for phone calls (use place_call for one-shot broadcasts, ai_call for AI voice agents, or open_voice_bridge to drive the call with your own LLM). For rare/underserved languages (Yoruba, Twi, Marathi, Cebuano, etc.), pick OmniVoice Global via language= — Inworld/Minimax don't cover these. Requires create_payment with toolName='text_to_speech'.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
textYesText to convert to speech
speedNoSpeech speed multiplier (0.5-2.0)
voiceNoVoice ID. 467 total voices. Use list_models to see available TTS models. Or paste a custom cloned voice ID. ## Minimax Studio — voice cloning from reference clip, ~5 chars/sat (332 voices) ### Arabic (2) Arabic_CalmWoman (Female, Middle Aged, Serene, calm female); Arabic_FriendlyGuy (Male, Middle Aged, Warm, friendly male) ### Cantonese (6) Cantonese_ProfessionalHost (F) (Female, Middle Aged, Polished, professional female host); Cantonese_GentleLady (Female, Middle Aged, Gentle, refined female); Cantonese_ProfessionalHost (M) (Male, Middle Aged, Polished, professional male host); Cantonese_PlayfulMan (Male, Middle Aged, Fun, playful male); Cantonese_CuteGirl (Female, Young, Cute, endearing young female); Cantonese_KindWoman (Female, Middle Aged, Kind, warm female) ### Chinese (34) Chinese (Mandarin)_Reliable_Executive (Male, Middle Aged, Professional, dependable male); Chinese (Mandarin)_News_Anchor (Male, Middle Aged, Clear, authoritative news voice); Chinese (Mandarin)_Unrestrained_Young_Man (Male, Young, Free-spirited young male); Chinese (Mandarin)_Mature_Woman (Female, Middle Aged, Poised, mature female); Arrogant_Miss (Female, Young, Haughty, proud young female); Robot_Armor (Male, Middle Aged, Robotic, mechanical voice); Chinese (Mandarin)_Kind-hearted_Antie (Female, Old, Warm, caring older female); Chinese (Mandarin)_HK_Flight_Attendant (Female, Young, Professional, polished female); Chinese (Mandarin)_Humorous_Elder (Male, Old, Witty, humorous older male); Chinese (Mandarin)_Gentleman (Male, Middle Aged, Refined, courteous male); Chinese (Mandarin)_Warm_Bestie (Female, Young, Friendly, warm young female); Chinese (Mandarin)_Stubborn_Friend (Male, Young, Persistent, headstrong male); Chinese (Mandarin)_Sweet_Lady (Female, Middle Aged, Gentle, sweet female); Chinese (Mandarin)_Southern_Young_Man (Male, Young, Southern-accented young male); Chinese (Mandarin)_Wise_Women (Female, Middle Aged, Thoughtful, wise female); Chinese (Mandarin)_Gentle_Youth (Male, Young, Soft, gentle young male); Chinese (Mandarin)_Warm_Girl (Female, Young, Warm, inviting young female); Chinese (Mandarin)_Male_Announcer (Male, Middle Aged, Clear, authoritative announcer); Chinese (Mandarin)_Kind-hearted_Elder (Male, Old, Gentle, wise older male); Chinese (Mandarin)_Cute_Spirit (Female, Young, Cute, spirited young female); Chinese (Mandarin)_Radio_Host (Male, Middle Aged, Smooth, professional radio voice); Chinese (Mandarin)_Lyrical_Voice (Female, Middle Aged, Melodic, lyrical female); Chinese (Mandarin)_Straightforward_Boy (Male, Young, Direct, honest young male); Chinese (Mandarin)_Sincere_Adult (Male, Middle Aged, Genuine, sincere male); Chinese (Mandarin)_Gentle_Senior (Male, Old, Gentle, patient older male); Chinese (Mandarin)_Crisp_Girl (Female, Young, Clear, crisp young female); Chinese (Mandarin)_Pure-hearted_Boy (Male, Young, Innocent, pure-hearted young male); Chinese (Mandarin)_Soft_Girl (Female, Young, Soft, delicate young female); Chinese (Mandarin)_IntellectualGirl (Female, Young, Smart, intellectual young female); Chinese (Mandarin)_Warm_HeartedGirl (Female, Young, Warm, caring young female); Chinese (Mandarin)_Laid_BackGirl (Female, Young, Relaxed, laid-back young female); Chinese (Mandarin)_ExplorativeGirl (Female, Young, Curious, adventurous young female); Chinese (Mandarin)_Warm-HeartedAunt (Female, Middle Aged, Caring, nurturing aunt figure); Chinese (Mandarin)_BashfulGirl (Female, Young, Shy, bashful young female) ### Czech (3) czech_male_1_v1 (Male, Middle Aged, Confident, assured presenter); czech_female_5_v7 (Female, Middle Aged, Steady, reliable narrator); czech_female_2_v2 (Female, Middle Aged, Refined, elegant female) ### Dutch (2) Dutch_kindhearted_girl (Female, Young, Compassionate, kind young female); Dutch_bossy_leader (Male, Middle Aged, Commanding, bossy male) ### English (45) English_expressive_narrator (Male, Middle Aged, Expressive, dynamic narrator); English_radiant_girl (Female, Young, Bright, cheerful young female); English_magnetic_voiced_man (Male, Middle Aged, Rich, magnetic male voice); English_compelling_lady1 (Female, Middle Aged, Persuasive, engaging female); English_Aussie_Bloke (Male, Middle Aged, Casual Australian male); English_captivating_female1 (Female, Middle Aged, Alluring, captivating female); English_Upbeat_Woman (Female, Middle Aged, Upbeat, energetic female); English_Trustworth_Man (Male, Middle Aged, Reliable, trustworthy male); English_CalmWoman (Female, Middle Aged, Serene, relaxing female); English_UpsetGirl (Female, Young, Emotional, distressed young female); English_Gentle-voiced_man (Male, Middle Aged, Soft, gentle male voice); English_Whispering_girl (Female, Young, Soft, whispery young female); English_Diligent_Man (Male, Middle Aged, Focused, hardworking male); English_Graceful_Lady (Female, Middle Aged, Elegant, poised female); English_ReservedYoungMan (Male, Young, Quiet, reserved young male); English_PlayfulGirl (Female, Young, Fun, playful young female); English_ManWithDeepVoice (Male, Middle Aged, Deep, resonant male bass); English_MaturePartner (Male, Middle Aged, Mature, dependable male); English_FriendlyPerson (Male, Middle Aged, Warm, approachable male); English_MatureBoss (Female, Middle Aged, Commanding, authoritative female); English_Debator (Male, Middle Aged, Articulate, persuasive male); English_LovelyGirl (Female, Young, Sweet, charming young female); English_Steadymentor (Male, Middle Aged, Steady, mentoring male); English_Deep-VoicedGentleman (Male, Middle Aged, Distinguished, deep-voiced male); English_Wiselady (Female, Middle Aged, Thoughtful, wise female); English_CaptivatingStoryteller (Male, Middle Aged, Engaging, narrative male voice); English_DecentYoungMan (Male, Young, Polite, well-spoken young male); English_SentimentalLady (Female, Middle Aged, Emotional, heartfelt female); English_ImposingManner (Female, Middle Aged, Commanding, regal female); English_SadTeen (Male, Young, Youthful, melancholic teen male); English_PassionateWarrior (Male, Middle Aged, Fierce, passionate male); English_WiseScholar (Male, Old, Learned, scholarly male); English_Soft-spokenGirl (Female, Young, Quiet, gentle young female); English_SereneWoman (Female, Middle Aged, Peaceful, calm female); English_ConfidentWoman (Female, Middle Aged, Self-assured, bold female); English_PatientMan (Male, Middle Aged, Steady, reassuring male); English_Comedian (Male, Middle Aged, Humorous, comedic male); English_BossyLeader (Male, Middle Aged, Commanding, bossy male); English_Strong-WilledBoy (Male, Young, Determined, strong-willed young male); English_StressedLady (Female, Middle Aged, Tense, stressed female); English_AssertiveQueen (Female, Middle Aged, Bold, assertive female); English_AnimeCharacter (Female, Young, Animated, expressive narrator); English_Jovialman (Male, Middle Aged, Cheerful, jolly male); English_WhimsicalGirl (Female, Young, Dreamy, whimsical young female); English_Kind-heartedGirl (Female, Young, Compassionate, kind young female) ### Finnish (3) finnish_male_3_v1 (Male, Middle Aged, Cheerful, upbeat male); finnish_male_1_v2 (Male, Young, Friendly, approachable young male); finnish_female_4_v1 (Female, Middle Aged, Bold, assertive female) ### French (6) French_Male_Speech_New (Male, Middle Aged, Composed, level-headed male); French_Female_News Anchor (Female, Middle Aged, Patient, professional presenter); French_CasualMan (Male, Middle Aged, Laid-back, casual male); French_MovieLeadFemale (Female, Middle Aged, Dramatic, cinematic female); French_FemaleAnchor (Female, Middle Aged, Professional, clear anchor); French_MaleNarrator (Male, Middle Aged, Clear, engaging narrator) ### German (3) German_FriendlyMan (Male, Middle Aged, Warm, friendly male); German_SweetLady (Female, Middle Aged, Sweet, gentle female); German_PlayfulMan (Male, Middle Aged, Fun, playful male) ### Greek (3) greek_male_1a_v1 (Male, Middle Aged, Reflective, mentoring male); Greek_female_1_sample1 (Female, Middle Aged, Soft, gentle female); Greek_female_2_sample3 (Female, Young, Friendly, relatable female) ### Hindi (3) hindi_male_1_v2 (Male, Middle Aged, Reliable, trustworthy male); hindi_female_2_v1 (Female, Middle Aged, Peaceful, tranquil female); hindi_female_1_v2 (Female, Middle Aged, Clear, authoritative anchor) ### Indonesian (9) Indonesian_SweetGirl (Female, Young, Sweet, gentle young female); Indonesian_ReservedYoungMan (Male, Young, Quiet, reserved young male); Indonesian_CharmingGirl (Female, Young, Charming, attractive female); Indonesian_CalmWoman (Female, Middle Aged, Serene, calm female); Indonesian_ConfidentWoman (Female, Middle Aged, Self-assured female); Indonesian_CaringMan (Male, Middle Aged, Nurturing, caring male); Indonesian_BossyLeader (Male, Middle Aged, Commanding, bossy male); Indonesian_DeterminedBoy (Male, Young, Focused, determined young male); Indonesian_GentleGirl (Female, Young, Soft, gentle young female) ### Italian (4) Italian_BraveHeroine (Female, Middle Aged, Courageous, brave female); Italian_Narrator (Male, Middle Aged, Clear, professional narrator); Italian_WanderingSorcerer (Male, Old, Mystical, wandering character); Italian_DiligentLeader (Male, Middle Aged, Focused, diligent male) ### Japanese (15) Japanese_IntellectualSenior (Male, Old, Learned, intellectual senior); Japanese_DecisivePrincess (Female, Young, Bold, decisive young female); Japanese_LoyalKnight (Male, Middle Aged, Loyal, noble male); Japanese_DominantMan (Male, Middle Aged, Strong, commanding male); Japanese_SeriousCommander (Male, Middle Aged, Stern, authoritative commander); Japanese_ColdQueen (Female, Middle Aged, Icy, regal female); Japanese_DependableWoman (Female, Middle Aged, Reliable, steady female); Japanese_GentleButler (Male, Middle Aged, Polite, refined butler voice); Japanese_KindLady (Female, Middle Aged, Kind, warm female); Japanese_CalmLady (Female, Middle Aged, Serene, calm female); Japanese_OptimisticYouth (Male, Young, Cheerful, optimistic young male); Japanese_GenerousIzakayaOwner (Male, Middle Aged, Warm, generous male); Japanese_SportyStudent (Male, Young, Energetic, athletic young male); Japanese_InnocentBoy (Male, Young, Innocent, naive young male); Japanese_GracefulMaiden (Female, Young, Elegant, graceful young female) ### Korean (49) Korean_AirheadedGirl (Female, Young, Carefree, bubbly young female); Korean_AthleticGirl (Female, Young, Energetic, sporty young female); Korean_AthleticStudent (Male, Young, Active, sporty young male); Korean_BraveAdventurer (Male, Middle Aged, Bold, adventurous male); Korean_BraveFemaleWarrior (Female, Middle Aged, Fierce, brave female); Korean_BraveYouth (Male, Young, Courageous young male); Korean_CalmGentleman (Male, Middle Aged, Composed, calm male); Korean_CalmLady (Female, Middle Aged, Serene, calm female); Korean_CaringWoman (Female, Middle Aged, Nurturing, caring female); Korean_CharmingElderSister (Female, Middle Aged, Charming, elegant sister); Korean_CharmingSister (Female, Young, Attractive, charming female); Korean_CheerfulBoyfriend (Male, Young, Upbeat, cheerful young male); Korean_CheerfulCoolJunior (Male, Young, Cool, laid-back junior); Korean_CheerfulLittleSister (Female, Young, Happy, energetic young female); Korean_ChildhoodFriendGirl (Female, Young, Familiar, friendly female); Korean_CockyGuy (Male, Young, Confident, cocky young male); Korean_ColdGirl (Female, Young, Aloof, cool young female); Korean_ColdYoungMan (Male, Young, Reserved, cold young male); Korean_ConfidentBoss (Male, Middle Aged, Self-assured, commanding boss); Korean_ConsiderateSenior (Male, Middle Aged, Thoughtful, considerate male); Korean_DecisiveQueen (Female, Middle Aged, Bold, decisive female); Korean_DominantMan (Male, Middle Aged, Powerful, dominant male); Korean_ElegantPrincess (Female, Young, Refined, elegant young female); Korean_EnchantingSister (Female, Young, Enchanting, captivating female); Korean_EnthusiasticTeen (Male, Young, Eager, enthusiastic teen); Korean_FriendlyBigSister (Female, Middle Aged, Friendly, supportive sister); Korean_GentleBoss (Male, Middle Aged, Gentle, kind boss); Korean_GentleWoman (Female, Middle Aged, Soft, gentle female); Korean_HaughtyLady (Female, Middle Aged, Proud, haughty female); Korean_InnocentBoy (Male, Young, Innocent, naive young male); Korean_IntellectualMan (Male, Middle Aged, Smart, intellectual male); Korean_IntellectualSenior (Male, Old, Wise, intellectual senior); Korean_LonelyWarrior (Male, Middle Aged, Solitary, stoic male); Korean_MatureLady (Female, Middle Aged, Poised, mature female); Korean_MysteriousGirl (Female, Young, Enigmatic, mysterious young female); Korean_OptimisticYouth (Male, Young, Cheerful, optimistic young male); Korean_PlayboyCharmer (Male, Young, Suave, charming young male); Korean_PossessiveMan (Male, Middle Aged, Intense, possessive male); Korean_QuirkyGirl (Female, Young, Quirky, unique young female); Korean_ReliableSister (Female, Middle Aged, Dependable, reliable female); Korean_ReliableYouth (Male, Young, Dependable young male); Korean_SassyGirl (Female, Young, Bold, sassy young female); Korean_ShyGirl (Female, Young, Shy, reserved young female); Korean_SoothingLady (Female, Middle Aged, Calming, soothing female); Korean_StrictBoss (Male, Middle Aged, Stern, strict male boss); Korean_SweetGirl (Female, Young, Sweet, gentle young female); Korean_ThoughtfulWoman (Female, Middle Aged, Thoughtful, reflective female); Korean_WiseElf (Female, Young, Whimsical, wise character); Korean_WiseTeacher (Male, Old, Patient, wise teacher) ### Polish (4) Polish_male_1_sample4 (Male, Middle Aged, Clear, professional narrator); Polish_male_2_sample3 (Male, Middle Aged, Authoritative news anchor); Polish_female_1_sample1 (Female, Middle Aged, Serene, calm female); Polish_female_2_sample3 (Female, Middle Aged, Relaxed, casual female) ### Portuguese (73) Portuguese_SentimentalLady (Female, Middle Aged, Emotional, sentimental female); Portuguese_BossyLeader (Male, Middle Aged, Commanding, bossy male); Portuguese_Wiselady (Female, Middle Aged, Wise, thoughtful female); Portuguese_Strong-WilledBoy (Male, Young, Determined young male); Portuguese_Deep-VoicedGentleman (Male, Middle Aged, Distinguished, deep male); Portuguese_UpsetGirl (Female, Young, Emotional, distressed female); Portuguese_PassionateWarrior (Male, Middle Aged, Fierce, passionate male); Portuguese_AnimeCharacter (Female, Young, Animated, expressive character); Portuguese_ConfidentWoman (Female, Middle Aged, Self-assured female); Portuguese_AngryMan (Male, Middle Aged, Intense, angry male); Portuguese_CaptivatingStoryteller (Male, Middle Aged, Engaging narrator); Portuguese_Godfather (Male, Old, Gravelly, authoritative male); Portuguese_ReservedYoungMan (Male, Young, Quiet, reserved young male); Portuguese_SmartYoungGirl (Female, Young, Intelligent, bright young female); Portuguese_Kind-heartedGirl (Female, Young, Compassionate young female); Portuguese_Pompouslady (Female, Middle Aged, Grand, pompous female); Portuguese_Grinch (Male, Middle Aged, Grumpy, grouchy character); Portuguese_Debator (Male, Middle Aged, Articulate, persuasive male); Portuguese_SweetGirl (Female, Young, Sweet, gentle young female); Portuguese_AttractiveGirl (Female, Young, Attractive, alluring female); Portuguese_ThoughtfulMan (Male, Middle Aged, Reflective, thoughtful male); Portuguese_PlayfulGirl (Female, Young, Fun, playful young female); Portuguese_GorgeousLady (Female, Middle Aged, Beautiful, elegant female); Portuguese_LovelyLady (Female, Middle Aged, Lovely, charming female); Portuguese_SereneWoman (Female, Middle Aged, Peaceful, calm female); Portuguese_SadTeen (Male, Young, Melancholic, sad teen); Portuguese_MaturePartner (Male, Middle Aged, Mature, dependable male); Portuguese_Comedian (Male, Middle Aged, Humorous, comedic male); Portuguese_NaughtySchoolgirl (Female, Young, Mischievous young female); Portuguese_Narrator (Male, Middle Aged, Clear, professional narrator); Portuguese_ToughBoss (Male, Middle Aged, Hard-nosed, tough male); Portuguese_Fussyhostess (Female, Middle Aged, Particular, meticulous female); Portuguese_Dramatist (Male, Middle Aged, Dramatic, theatrical male); Portuguese_Steadymentor (Male, Middle Aged, Reliable, mentoring male); Portuguese_Jovialman (Male, Middle Aged, Cheerful, jovial male); Portuguese_CharmingQueen (Female, Middle Aged, Charming, regal female); Portuguese_SantaClaus (Male, Old, Jolly, festive character); Portuguese_Rudolph (Male, Young, Playful, festive character); Portuguese_Arnold (Male, Middle Aged, Strong, tough male character); Portuguese_CharmingSanta (Male, Old, Charming, festive character); Portuguese_CharmingLady (Female, Middle Aged, Charming, elegant female); Portuguese_Ghost (Male, Middle Aged, Eerie, spectral character); Portuguese_HumorousElder (Male, Old, Witty, humorous older male); Portuguese_CalmLeader (Male, Middle Aged, Composed, calm leader); Portuguese_GentleTeacher (Female, Middle Aged, Patient, gentle teacher); Portuguese_EnergeticBoy (Male, Young, Lively, energetic young male); Portuguese_ReliableMan (Male, Middle Aged, Dependable, reliable male); Portuguese_SereneElder (Male, Old, Peaceful, wise elder); Portuguese_GrimReaper (Male, Middle Aged, Dark, ominous character); Portuguese_AssertiveQueen (Female, Middle Aged, Bold, assertive female); Portuguese_WhimsicalGirl (Female, Young, Dreamy, whimsical female); Portuguese_StressedLady (Female, Middle Aged, Tense, stressed female); Portuguese_FriendlyNeighbor (Male, Middle Aged, Friendly, neighborly male); Portuguese_CaringGirlfriend (Female, Young, Loving, caring young female); Portuguese_PowerfulSoldier (Male, Middle Aged, Strong, powerful male); Portuguese_FascinatingBoy (Male, Young, Charming, fascinating young male); Portuguese_RomanticHusband (Male, Middle Aged, Romantic, loving male); Portuguese_StrictBoss (Male, Middle Aged, Stern, strict boss); Portuguese_InspiringLady (Female, Middle Aged, Motivating, inspiring female); Portuguese_PlayfulSpirit (Female, Young, Fun, playful young female); Portuguese_ElegantGirl (Female, Young, Refined, elegant young female); Portuguese_CompellingGirl (Female, Young, Engaging, compelling female); Portuguese_PowerfulVeteran (Male, Old, Experienced, powerful veteran); Portuguese_SensibleManager (Male, Middle Aged, Practical, sensible male); Portuguese_ThoughtfulLady (Female, Middle Aged, Reflective, thoughtful female); Portuguese_TheatricalActor (Male, Middle Aged, Dramatic, theatrical male); Portuguese_FragileBoy (Male, Young, Delicate, fragile young male); Portuguese_ChattyGirl (Female, Young, Talkative, bubbly female); Portuguese_Conscientiousinstructor (Male, Middle Aged, Careful, thorough instructor); Portuguese_RationalMan (Male, Middle Aged, Logical, rational male); Portuguese_WiseScholar (Male, Old, Learned, scholarly male); Portuguese_FrankLady (Female, Middle Aged, Direct, frank female); Portuguese_DeterminedManager (Male, Middle Aged, Focused, decisive manager) ### Romanian (4) Romanian_male_1_sample2 (Male, Middle Aged, Dependable, reliable male); Romanian_male_2_sample1 (Male, Young, Lively, energetic young male); Romanian_female_1_sample4 (Female, Young, Cheerful, optimistic female); Romanian_female_2_sample1 (Female, Middle Aged, Soft, gentle female) ### Russian (8) Russian_HandsomeChildhoodFriend (Male, Young, Charming, familiar young male); Russian_BrightHeroine (Female, Middle Aged, Bright, regal female); Russian_AmbitiousWoman (Female, Middle Aged, Driven, ambitious female); Russian_ReliableMan (Male, Middle Aged, Dependable, reliable male); Russian_CrazyQueen (Female, Young, Wild, unpredictable female); Russian_PessimisticGirl (Female, Young, Gloomy, pessimistic female); Russian_AttractiveGuy (Male, Young, Charming, attractive young male); Russian_Bad-temperedBoy (Male, Young, Irritable, short-tempered male) ### Spanish (47) Spanish_SereneWoman (Female, Middle Aged, Peaceful, calm female); Spanish_MaturePartner (Male, Middle Aged, Mature, dependable male); Spanish_CaptivatingStoryteller (Male, Middle Aged, Engaging narrator); Spanish_Narrator (Male, Middle Aged, Clear, professional narrator); Spanish_WiseScholar (Male, Old, Learned, scholarly male); Spanish_Kind-heartedGirl (Female, Young, Compassionate young female); Spanish_DeterminedManager (Male, Middle Aged, Focused, decisive manager); Spanish_BossyLeader (Male, Middle Aged, Commanding, bossy male); Spanish_ReservedYoungMan (Male, Young, Quiet, reserved young male); Spanish_ConfidentWoman (Female, Middle Aged, Self-assured female); Spanish_ThoughtfulMan (Male, Middle Aged, Reflective, thoughtful male); Spanish_Strong-WilledBoy (Male, Young, Determined young male); Spanish_SophisticatedLady (Female, Middle Aged, Elegant, sophisticated female); Spanish_RationalMan (Male, Middle Aged, Logical, rational male); Spanish_AnimeCharacter (Female, Young, Animated, expressive character); Spanish_Deep-tonedMan (Male, Middle Aged, Deep, resonant male); Spanish_Fussyhostess (Female, Middle Aged, Particular, meticulous female); Spanish_SincereTeen (Male, Young, Honest, sincere teen); Spanish_FrankLady (Female, Middle Aged, Direct, frank female); Spanish_Comedian (Male, Middle Aged, Humorous, comedic male); Spanish_Debator (Male, Middle Aged, Articulate, persuasive male); Spanish_ToughBoss (Male, Middle Aged, Hard-nosed, tough male); Spanish_Wiselady (Female, Middle Aged, Wise, thoughtful female); Spanish_Steadymentor (Male, Middle Aged, Reliable, mentoring male); Spanish_Jovialman (Male, Middle Aged, Cheerful, jovial male); Spanish_SantaClaus (Male, Old, Jolly, festive character); Spanish_Rudolph (Male, Young, Playful, festive character); Spanish_Intonategirl (Female, Young, Expressive, melodic young female); Spanish_Arnold (Male, Middle Aged, Strong, tough male character); Spanish_Ghost (Male, Middle Aged, Eerie, spectral character); Spanish_HumorousElder (Male, Old, Witty, humorous older male); Spanish_EnergeticBoy (Male, Young, Lively, energetic young male); Spanish_WhimsicalGirl (Female, Young, Dreamy, whimsical female); Spanish_StrictBoss (Male, Middle Aged, Stern, strict boss); Spanish_ReliableMan (Male, Middle Aged, Dependable, reliable male); Spanish_SereneElder (Male, Old, Peaceful, wise elder); Spanish_AngryMan (Male, Middle Aged, Intense, angry male); Spanish_AssertiveQueen (Female, Middle Aged, Bold, assertive female); Spanish_CaringGirlfriend (Female, Young, Loving, caring young female); Spanish_PowerfulSoldier (Male, Middle Aged, Strong, powerful male); Spanish_PassionateWarrior (Male, Middle Aged, Fierce, passionate male); Spanish_ChattyGirl (Female, Young, Talkative, bubbly young female); Spanish_RomanticHusband (Male, Middle Aged, Romantic, loving male); Spanish_CompellingGirl (Female, Young, Engaging, compelling female); Spanish_PowerfulVeteran (Male, Old, Experienced, powerful veteran); Spanish_SensibleManager (Male, Middle Aged, Practical, sensible male); Spanish_ThoughtfulLady (Female, Middle Aged, Reflective, thoughtful female) ### Thai (4) Thai_male_1_sample8 (Male, Middle Aged, Peaceful, calm male); Thai_male_2_sample2 (Male, Middle Aged, Warm, friendly male); Thai_female_1_sample1 (Female, Middle Aged, Self-assured female); Thai_female_2_sample2 (Female, Young, Lively, energetic female) ### Turkish (2) Turkish_CalmWoman (Female, Middle Aged, Serene, calm female); Turkish_Trustworthyman (Male, Middle Aged, Reliable, trustworthy male) ### Ukrainian (2) Ukrainian_CalmWoman (Female, Middle Aged, Serene, calm female); Ukrainian_WiseScholar (Male, Old, Learned, scholarly male) ### Vietnamese (1) Vietnamese_kindhearted_girl (Female, Young, Compassionate, kind young female) ## Inworld Max Premium — #1 ranked TTS, ~15 chars/sat (135 voices) ### Arabic (2) Nour (Female, Middle Aged, Polished female Arabic voice with a friendly tone, great for voiceover or support); Omar (Male, Middle Aged, Bright, confident Arabic male voice, great for announcements and broadcasts) ### Chinese (4) Jing (Female, Young, An energetic, fast-paced young Chinese female); Xiaoyin (Female, Young, A youthful Chinese female voice with a gentle, sweet quality); Xinyi (Female, Young, A Chinese woman with a neutral tone, perfect for narrations); Yichen (Male, Middle Aged, A calm, flat young adult male Chinese voice) ### Dutch (4) Erik (Male, Middle Aged, Older Dutch male voice with a weathered edge); Katrien (Female, Middle Aged, Dutch woman with an expressive voice); Lennart (Male, Middle Aged, A confident Dutch male voice. Calm and relaxed); Lore (Female, Middle Aged, Clear, calm Dutch female voice, great for narrations and professional use) ### English (95) Abby (Female, Young, Bright, eager American female child voice, ideal for animated characters and educational content); Alex (Male, Middle Aged, Energetic and expressive mid-range male voice, with a mildly nasal quality); Amina (Female, Middle Aged, Warm, inviting West African female voice, ideal for community outreach and storytelling); Anjali (Female, Middle Aged, Confident, articulate Indian female voice, ideal for professional training materials); Arjun (Male, Middle Aged, Clear, composed Indian male voice, well-suited for instructional webinars); Ashley (Female, Middle Aged, A warm, natural female voice); Avery (Male, Young, Youthful, performative male voice, suited for gameshow-style hosting); Bianca (Female, Middle Aged, Deep, controlled female voice, ideal for serious corporate reads); Blake (Male, Middle Aged, Rich, intimate male voice, perfect for audiobooks and romantic content); Brandon (Male, Middle Aged, Bold, strident male voice, ideal for structured announcements and news-style reads); Brian (Male, Middle Aged, Friendly, encouraging American male voice, ideal for educational tutorials); Callum (Male, Middle Aged, Casual and friendly Australian male voice, ideal for informal instructional content); Carter (Male, Middle Aged, Energetic, mature radio announcer-style male voice, great for storytelling); Cedric (Male, Middle Aged, Crisp, measured male voice, ideal for formal announcements and premium narration); Celeste (Female, Middle Aged, Soft, whispery female voice, ideal for ASMR and gentle mindfulness sessions); Chloe (Female, Young, Thoughtful, introspective youthful female voice, perfect for coming-of-age narratives); Claire (Female, Middle Aged, Warm, gentle Eastern European female voice, ideal for bedtime stories); Clive (Male, Middle Aged, British-accented English male with a calm, cordial quality); Conrad (Male, Middle Aged, Gruff, weathered male voice, perfect for detective archetypes and audiobook roles); Craig (Male, Old, Older British male with a refined and articulate voice); Damon (Male, Middle Aged, Calm, raspy male voice, suited for moody narration and atmospheric roleplay); Darlene (Female, Middle Aged, Soothing, comforting Southern female voice, ideal for bedtime stories); Deborah (Female, Young, Warm, peaceful female voice with a calm tone); Dennis (Male, Middle Aged, Middle-aged man with a smooth, calm and friendly voice); Derek (Male, Middle Aged, Steady, professional, composed American male voice, ideal for banking support); Dominus (Male, Middle Aged, Robotic, deep male voice with a menacing quality. Perfect for villains); Duncan (Male, Middle Aged, Warm, articulate British male voice for customer support and education); Edward (Male, Middle Aged, American male with an emphatic, confident and streetwise tone); Eleanor (Female, Middle Aged, Polished, approachable British female voice for support and learning); Elizabeth (Female, Middle Aged, Professional middle-aged woman, perfect for narrations and voiceovers); Elliot (Male, Middle Aged, Calm, steady male voice, suitable for nature documentaries and informational content); Ethan (Male, Young, Assured, precise male voice, perfect for tech tutorials and gadget overviews); Evan (Male, Middle Aged, Friendly, approachable, easygoing male voice, ideal for onboarding and retail assistance); Evelyn (Female, Middle Aged, Gentle, intimate female voice, ideal for ASMR and calming conversations); Felix (Male, Middle Aged, Calm, friendly British male voice, ideal for help and tutorials); Gareth (Male, Middle Aged, Soothing, gentle male voice, ideal for guided meditations and relaxation); Graham (Male, Middle Aged, Profound, authoritative British male voice, perfect for historical documentaries); Grant (Male, Middle Aged, Calm, attentive, helpful male voice, ideal for troubleshooting and support); Hades (Male, Middle Aged, Commanding and gruff male voice, think an omniscient narrator or castle guard); Hamish (Male, Middle Aged, Friendly and casual Australian male voice, ideal for character-driven roles); Hana (Female, Young, Bright, expressive young female voice, perfect for storytelling and gaming); Hank (Male, Middle Aged, Warm, laid-back Southern male voice, ideal for travel documentaries); Jake (Male, Young, Amiable, introspective male voice, ideal for motivational talks); James (Male, Middle Aged, Vibrant, expressive male voice, perfect for animated video content and event hosting); Jason (Male, Middle Aged, Lucid, engrossing male voice, ideal for tech tips and creative content); Jessica (Female, Middle Aged, Encouraging, articulate American female voice, perfect for self-help audiobooks); Jonah (Male, Middle Aged, Soothing, calm male voice, great for tutorial guidance and gentle instructions); Julia (Female, Middle Aged, Quirky, high-pitched female voice that delivers lines with playful energy); Kayla (Female, Young, Enthusiastic, youthful female voice, ideal for reaction videos and product reviews); Kelsey (Female, Middle Aged, Warm, empathetic, reassuring female voice, ideal for phone support); Lauren (Female, Middle Aged, Confident, friendly American female voice, ideal for corporate presentations); Levi (Male, Middle Aged, Measured, ominous male voice, ideal for suspense narration and dark fantasy); Liam (Male, Middle Aged, Upbeat, motivating Australian male voice, perfect for energizing workout sessions); Loretta (Female, Middle Aged, Inviting, folksy Southern female voice, perfect for cooking shows and family tales); Lucian (Male, Middle Aged, Brooding, foreboding male voice, suited for villainous character arcs); Luna (Female, Middle Aged, Calm, relaxing female voice, perfect for meditations, sleep stories, and mindfulness); Malcolm (Male, Middle Aged, Authoritative, manipulative male voice, perfect for cunning leaders); Marcus (Male, Middle Aged, Authoritative, empathetic male voice, great for civic campaigns and outreach); Mark (Male, Middle Aged, Energetic, expressive man with a rapid-fire delivery); Marlene (Female, Middle Aged, Friendly, relaxed Southern female voice, ideal for cooking tutorials); Mia (Female, Young, Youthful, expressive female voice, ideal for adolescent characters); Miranda (Female, Middle Aged, Menacing, cold-hearted female voice, perfect for strategic villains); Mortimer (Male, Middle Aged, Gravelly, aggressive male character voice, ideal for fantasy villains); Nadia (Female, Middle Aged, Personable, lively female voice, perfect for tutorial walkthroughs); Naomi (Female, Middle Aged, Warm, grounded female voice, perfect for narrative podcasting); Nate (Male, Young, Conversational, sociable male voice, great for customer support); Oliver (Male, Middle Aged, Neutral and clear male voice, ideal for public announcements and education); Olivia (Female, Middle Aged, Young, British female with a friendly and helpful tone); Pippa (Female, Middle Aged, Friendly and casual Australian female voice, ideal for relaxed instructional content); Pixie (Female, Middle Aged, High-pitched, childlike female voice with a squeaky quality — great for cartoons); Priya (Female, Young, Even-toned female voice with an Indian accent); Reed (Male, Middle Aged, Clear, professional American male voice, well-suited for support and training); Riley (Female, Young, Playful, youthful female voice, perfect for animated storytelling); Ronald (Male, Old, Confident, British man with a deep, gravelly voice); Rupert (Male, Middle Aged, Resonant, commanding British male voice, ideal for motivational speeches); Saanvi (Female, Middle Aged, Crisp, articulate Indian female voice, ideal for e-learning modules); Sarah (Female, Middle Aged, Fast-talking young adult woman, with a questioning and curious tone); Sebastian (Male, Middle Aged, Intimidating, steely male voice, perfect for ruthless antagonists); Selene (Female, Young, Soft, flirtatious female voice, ideal for companion-style interactions); Serena (Female, Middle Aged, Soft, nurturing female voice, perfect for mindfulness sessions); Shaun (Male, Middle Aged, Friendly, dynamic male voice great for conversations); Simon (Male, Middle Aged, Articulate, insightful male voice, perfect for corporate presentations); Snik (Male, Middle Aged, Hoarse, cunning male voice, perfect for devious goblin roles and tricksters); Sophie (Female, Middle Aged, Friendly British female voice, great for assistance and knowledge sharing); Tessa (Female, Middle Aged, Upbeat, conversational Australian female voice, perfect for lifestyle vlogs); Theodore (Male, Old, Gravelly male voice, with a time-worn quality); Timothy (Male, Young, Lively, upbeat American male voice); Trevor (Male, Middle Aged, Punchy, expressive male voice, perfect for energetic promos); Tristan (Male, Middle Aged, Deliberate, controlled male voice, ideal for documentary narration); Tyler (Male, Middle Aged, Authoritative, insightful male voice, ideal for tech explainer videos); Veronica (Female, Middle Aged, Intimidating, commanding female voice, perfect for ruthless antagonists); Victor (Male, Middle Aged, Ominous, sinister male voice, ideal for dark conspiracies and suspense); Victoria (Female, Middle Aged, Silky, cunning British female voice, ideal for narrating intricate plots); Vinny (Male, Middle Aged, Gritty, assertive New York male voice, perfect for crime dramas); Wendy (Female, Old, Posh, middle-aged British female voice) ### French (4) Alain (Male, Middle Aged, Deep, smooth middle-aged male French voice. Composed and calm); Étienne (Male, Middle Aged, Calm young adult French male); Hélène (Female, Middle Aged, Middle-aged French woman, with a smooth, musical, and graceful voice); Mathieu (Male, Middle Aged, A French male voice carrying a nasal quality) ### German (2) Johanna (Female, Middle Aged, A calm older German female with a low, smoky voice); Josef (Male, Middle Aged, An articulate German male voice with an announcer-like quality) ### Hebrew (2) Oren (Male, Middle Aged, Steady male Hebrew voice, great for podcasts and voiceovers); Yael (Female, Middle Aged, Mid-range female Hebrew voice, suitable for narrations and storytelling) ### Hindi (2) Manoj (Male, Middle Aged, Clear, professional Hindi male voice. Great for narrations and customer service); Riya (Female, Middle Aged, Professional, clear female voice with an articulate and polished delivery) ### Italian (2) Gianni (Male, Middle Aged, Deep, smooth Italian male voice that speaks rapidly); Orietta (Female, Middle Aged, Calm adult female Italian voice, with a soothing cadence) ### Japanese (2) Asuka (Female, Middle Aged, Friendly, young adult Japanese female voice); Satoshi (Male, Middle Aged, Dramatic, expressive male Japanese voice filled with energy) ### Korean (4) Hyunwoo (Male, Middle Aged, Young adult Korean male voice); Minji (Male, Young, Energetic, friendly young Korean female voice); Seojun (Male, Young, Clear, deep mature Korean male voice); Yoona (Female, Middle Aged, Korean woman with a gentle, soothing voice) ### Polish (2) Szymon (Male, Middle Aged, Polish adult male voice with a warm, friendly quality); Wojciech (Male, Middle Aged, A middle-aged Polish male voice) ### Portuguese (2) Heitor (Male, Middle Aged, Composed Portuguese-speaking male voice with a neutral tone); Maitê (Female, Middle Aged, Middle-aged Portuguese-speaking female voice) ### Russian (4) Dmitry (Male, Middle Aged, Deep, gravelly male voice with a commanding and narrative tone); Elena (Female, Middle Aged, Clear, mid-range female voice with a smooth texture and neutral tone); Nikolai (Male, Middle Aged, Deep, resonant male voice with a clear, theatrical, and narrative quality); Svetlana (Female, Middle Aged, Soft, high-pitched female voice with a moderate pace and breathy quality) ### Spanish (4) Diego (Male, Young, Spanish-speaking male voice with a soothing, gentle quality); Lupita (Female, Young, Vibrant, energetic young Spanish-speaking female voice); Miguel (Male, Middle Aged, A calm adult Spanish-speaking male voice, perfect for storytelling); Rafael (Male, Middle Aged, Middle-aged Spanish-speaking male with a deep, composed voice. Great for narrations)
modelIdNoOptional. 3 tiers: OmniVoice Global (602+ langs, ~102 chars/sat), Inworld Premium (#1 ranked, ~15 chars/sat), Minimax Studio (voice cloning, ~5 chars/sat). Omit for default.
languageNoOmniVoice tier ONLY: ISO 639 language code (646 supported). Default: 'en'. NOTE: on the Inworld/Minimax tiers this field is silently ignored — you get the chosen voice's own language (usually English) with no error. For a non-English language, either select the OmniVoice tier (modelId) or pick a voice whose language matches. Full language list at the GET /api/l402/text-to-speech endpoint.
paymentIdYesValid payment ID (must be paid)
voice_descriptionNoOmniVoice only: describe desired voice (e.g., 'female, young adult, high pitch')

TDQS

A4.6/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations present, the description carries the full burden and does well: it discloses output type, adjustable speed range, Bitcoin Lightning payment (no API key), tier-specific language coverage, and a dependency on create_payment. It does not mention failure modes or length limits, but the provided behavioral traits are substantive and useful.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The main description is compact and front-loaded with purpose, then tiers, then constraints. Every sentence earns its place—tier details, speed, output type, payment, exclusions, and prerequisite—with no filler or repetition.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a TTS tool with 7 parameters and no output schema, the description covers the major decisions: tier selection, language coverage, speed, payment, and call alternatives. It lacks explicit text-length limits or audio format details, but given the rich voice schema and clear usage rules, it is sufficiently complete for an agent to invoke correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema already documents all 7 parameters with 100% coverage, so the baseline is 3. The main description adds selection guidance beyond that: when to use the 'language' parameter, how tiers map to speed/quality, and that paymentId must come from create_payment. This adds real semantic value without restating schema details.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description opens with the specific verb-resource pair 'Text-to-speech' and immediately enumerates three distinct tiers with capabilities. It clearly states the output ('Returns audio URL') and differentiates from phone-call siblings via an explicit 'When NOT to use' section naming place_call, ai_call, and open_voice_bridge.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides explicit when-to-use context, including a named alternative for phone calls, guidance for rare/underserved languages (choose OmniVoice Global), and a prerequisite (create_payment with toolName='text_to_speech'). This is actionable and clearly distinguishes the tool's intended scope.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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Glama MCP Gateway

Add one secure layer between your agents and this server.

TDQS

A4/5.0
Disambiguation4/5

Most tools have distinct purposes, but there is some overlap, especially among call tools (ai_call, place_call, open_voice_bridge) and image generation/editing tools (generate_image, edit_image, animate_image). Descriptions help differentiate, but an agent might still select the wrong one.

Naming Consistency4/5

The vast majority of tools follow a verb_noun pattern (e.g., generate_image, send_sms). A few exceptions exist (await_result, check_job_status, epub_to_audiobook) but the overall pattern is strong and predictable.

Tool Count3/5

With 50 tools, the server is very extensive. While each tool earns its place given the broad scope of AI services, the count feels high and could overwhelm agents, making selection less efficient.

Completeness5/5

The tool surface is remarkably comprehensive, covering generation, editing, conversion, communication, async management, payments, and error handling. There are no obvious gaps for the stated Bitcoin-powered AI toolkit purpose.