{"uid":"cap_27Yl8Ocp482a6MiakkTQJ","slug":"forgemesh-tts-x402-5dbfbe05","name":"ForgeMesh TTS (x402)","description":"TTS API paid per call over x402: up to 2000 characters to natural speech (WAV) on our locally-hosted neural speech engine, multiple voices. No keys, no subscription. For voice agents, IVR, audio content. Premium tiers with 20 voices and 31 languages at voice.forgemesh.io.","url":"https://x402.forgemesh.io/tts","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_EUUEDLij8IPbuLR7sX5u6","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 to natural speech WAV audio using a locally-hosted neural speech engine, billed per call via x402 micropayment.","exampleAgentPrompt":"Read this announcement aloud in a female voice: 'Your appointment has been confirmed for tomorrow at 3pm. Please arrive 10 minutes early.' — give me back the WAV audio.","exampleUseCases":null,"resultDescription":"A WAV audio file containing natural-sounding speech of the submitted text, rendered by ForgeMesh's locally-hosted neural speech engine using the selected voice (e.g. F1 for female, M1 for male). No API key or subscription required; the call is billed at $0.01 USDC via x402.","failureModes":["Text exceeds 2000 character limit — request rejected","Invalid or unsupported voice ID specified — falls back to default or errors","x402 payment not provided or insufficient USDC — 402 Payment Required response","Neural engine unavailable — 5xx service error","Empty text field — returns error or silence"],"whenToPreferThis":"Prefer this endpoint when you need pay-per-call TTS with no API key or subscription setup, especially for voice agents, IVR systems, or low-volume audio content generation where per-call micropayment (x402/USDC) is acceptable. Choose the premium tier at voice.forgemesh.io if you need more than the basic voice set or multilingual support (20 voices, 31 languages).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:05:03.648Z","isFirstParty":false}