{"uid":"cap_cPoKPdTlcH2GZ7iCuP_22","slug":"forgemesh-text-to-speech-api-d3ed7c03","name":"ForgeMesh Text-to-Speech API","description":"Text-to-speech API: convert up to 2000 characters into natural speech (WAV, base64) using our locally-hosted neural speech engine — no API keys, pay per call with USDC. Choose voices F1-F5/M1-M5. Use for voice agents, notifications, audio content, and IVR. Text never stored. Full 20-voice / 31-language tiered product at voice.forgemesh.io.","url":"https://x402.forgemesh.io/text-to-speech","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"text":{"type":"string","description":"Text to speak, max 2000 chars"},"voice":{"type":"string","description":"Voice id, e.g. F1, M1 (default F1)"}}},"responseSchema":{"type":"json","example":{"voice":"F1","characters":38,"audio_base64":"UklGRiQAAABXQVZF...","content_type":"audio/wav"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_in9QZqZHMZclNoECRTXHE","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts up to 2000 characters of text into natural-sounding speech audio (WAV, base64-encoded) using a locally-hosted neural speech engine, with 10 selectable voices and no API key required.","exampleAgentPrompt":"Read this message aloud using a female voice (F2): 'Your appointment is confirmed for Thursday at 3pm. Please arrive 10 minutes early and bring your ID.' Give me back the audio as a WAV file.","exampleUseCases":null,"resultDescription":"Returns synthesized speech as a WAV audio file encoded in base64, produced by a locally-hosted neural speech engine. The audio represents the input text spoken in the selected voice. Text is not stored after processing.","failureModes":["Text exceeds 2000 character limit — request rejected","Invalid voice ID provided (not in F1-F5 or M1-M5 range) — defaults to F1 or returns error","Payment not included or insufficient USDC — 402 Payment Required response","Empty text input — may return error or silent audio","Unsupported language/character set — may produce degraded or incorrect audio"],"whenToPreferThis":"Choose this endpoint when you need quick, pay-per-call text-to-speech synthesis without committing to an API key or subscription. Ideal for voice agents, IVR systems, audio notifications, and short-form audio content where text is under 2000 characters. Prefer it over voice.forgemesh.io's full product when you only need 1 of 10 basic voices and don't require the full 20-voice/31-language tier.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T01:05:14.694Z","isFirstParty":false}