{"uid":"cap_y-_5f7hwxEAygKXaFEDaN","slug":"forgemesh-voice-custom-tts-4fbe97b0","name":"ForgeMesh Voice Custom TTS","description":"Expressive text-to-speech in any of 20 voices: 10 standard (M1-M5, F1-F5) plus 10 personas (Storyteller, Narrator, Announcer, Urgent, Velvet, Sage, Spark, Anchor, Echo, Assistant), with speed and quality control, up to 500 characters, WAV output. Use it to: voice a game character, narrate a branded assistant reply, add a dramatic announcer line, give a chatbot personality-driven audio. USDC on Base.","url":"https://voice.forgemesh.io/v1/tts/custom","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"lang":{"enum":["en","ko","ja","ar","bg","cs","da","de","el","es","et","fi","fr","hi","hr","hu","id","it","lt","lv","nl","pl","pt","ro","ru","sk","sl","sv","tr","uk","vi"],"type":"string","description":"Language code; 31 languages supported"},"text":{"type":"string","maxLength":2000,"minLength":1,"description":"Text to synthesize into speech, max 2000 characters. Use non-long routes for 1-500 chars and -long routes for 501-2000 chars."},"speed":{"type":"number","maximum":2,"minimum":0.7,"description":"Pro/Custom expressive speed control, 0.7-2.0. Presets: slow 0.7, normal 1.0, fast 1.3, rapid 1.6"},"steps":{"type":"integer","maximum":100,"minimum":1,"description":"Pro/Custom quality control, 1-100. Presets: draft 4, standard 8, high 16, ultra 24"},"voice":{"enum":["M1","M2","M3","M4","M5","F1","F2","F3","F4","F5","Storyteller","Narrator","Announcer","Assistant","Urgent","Sage","Spark","Anchor","Velvet","Echo"],"type":"string","description":"Voice name. Standard voices M1-M5/F1-F5; persona voices require Custom tier."}}},"responseSchema":{"type":"json","example":{"description":"44.1kHz 16-bit mono WAV speech audio returned inline","content_type":"audio/wav"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_y0WsW6OVbgtr_v8xmcpU7","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts text to speech using persona voices or generic voices across 31 languages, returning a WAV audio file, billed per call via x402 micropayments.","exampleAgentPrompt":"Read this out loud using the Storyteller persona voice in English: 'Welcome to the future of storytelling — where every word comes alive.' Use a speed of 1.2 and 8 diffusion steps.","exampleUseCases":null,"resultDescription":"A 44.1kHz 16-bit mono WAV audio file containing the synthesized speech for the submitted text, returned as audio/wav content.","failureModes":["Text exceeds 2000 character limit — request rejected","Invalid or unsupported ISO language code — synthesis fails","Invalid voice identifier (not M1-M5, F1-F5, or a valid persona name) — error returned","Speed value outside 0.7-2.0 range — rejected for Pro tier","Diffusion steps outside 1-100 range — rejected","Payment not provided or insufficient USDC — 402 Payment Required returned","Service unavailable or timeout for long texts"],"whenToPreferThis":"Choose this endpoint when you need pay-per-call text-to-speech with no subscription, want persona voices like Storyteller or Narrator, need multilingual support across 31 languages, or want OpenAI-compatible speech requests with x402 micropayment billing — ideal for AI agents, apps, or content creators needing on-demand voice without upfront commitments.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:45:48.017Z","isFirstParty":false}