{ "data": { "a": { "slug": "fish-audio-tts", "name": "Fish Audio TTS API", "vendor": "Fish Audio", "vendorUrl": "https://fish.audio", "kind": "model", "category": "text-to-speech", "summary": "Fish Audio's API turns text into speech with the `s2.1-pro` model in 83 languages, over a REST endpoint, a timestamped stream and a WebSocket that accepts text as it is produced.", "url": "https://www.anchorterminal.com/tools/fish-audio-tts", "markdownUrl": "https://www.anchorterminal.com/tools/fish-audio-tts.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/fish-audio-tts.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/fish-audio-tts.json", "repo": "https://github.com/fishaudio/fish-audio-python", "license": "Apache-2.0 (Python SDK), MIT (JavaScript SDK)", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.fish.audio", "packages": [ { "registry": "pypi", "name": "fish-audio-sdk" }, { "registry": "npm", "name": "fish-audio" } ], "auth": "mixed", "authNotes": "`Authorization: Bearer` API key created in the web app after a browser signup with email verification. A key takes a name and an optional expiry. The `model` request header selects the model. The hosted MCP server at `https://api.fish.audio/mcp` signs in by OAuth and is bound to one team (https://docs.fish.audio/developer-guide/getting-started/api-key, https://docs.fish.audio/overview/mcp).", "pricing": "usage", "pricingNotes": "$15 per million UTF-8 bytes of input text on `s2.1-pro`, `s2-pro` and `s1`, prepaid with no subscription or monthly minimum. `s2.1-pro-free` costs $0 under fair-use limits, and the changelog says it is free through 30 November 2026. An agent can start on the free model once a person has signed up. Whether a card is needed is not stated. Concurrency rises with total prepaid amount. MCP usage draws on web app plan credits, not API credits (https://docs.fish.audio/developer-guide/models-pricing/pricing-and-rate-limits).", "priceSummary": "Pay per use", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the developer docs, the OpenAPI file or the pricing page (checked 2026-10-09).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": 5213, "pypiWeekly": 34220, "asOf": "2026-10-09" }, "docsUrl": "https://docs.fish.audio/features/text-to-speech", "llmsTxt": "https://docs.fish.audio/llms.txt", "openapi": "https://docs.fish.audio/api-reference/openapi.json", "capabilities": [ "speech.tts", "speech.streaming", "speech.voices", "speech.languages", "voice.clone" ], "tags": [ "hosted", "usage-priced", "prepaid", "free-tier", "closed-source", "python", "typescript", "openapi", "llms-txt", "mcp", "streaming", "status-page", "open-weights" ], "lastRelease": "2026-09-23", "graded": true, "anchor": { "graded": true, "score": 60.7, "grade": "C", "agentReady": false, "rank": 453, "ranked": true, "rankOf": 842, "categoryRank": 8, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 67, "maintenance": 69, "payments": 30, "reliability": 75, "schema": 84, "security": 35, "transparency": 60 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-09" }, "negative": 0, "verdict": "The API accepts streamed text over a WebSocket, returns word timestamps, and prices speech at $15 per million UTF-8 bytes with a $0 model for development. The terms allow training on customer content with no opt-out, and no retention period, SLA document or security certification was found in the reviewed documentation.", "bestFor": "Voice agents that stream LLM text into speech at a low per-byte price, multilingual output from one model, and teams moving from OpenAI or ElevenLabs request shapes.", "strengths": [ "Public OpenAPI 3.1 file, llms.txt, Markdown pages and two installable agent skills for the SDKs and the raw API", "WebSocket input takes text as it is produced, with `flush` and `stop` events and a variant that returns word timestamps", "`s2.1-pro-free` runs the production model at $0 under fair-use limits, through 30 November 2026", "OpenAI-compatible and ElevenLabs-compatible endpoints refuse unsupported options with a 4xx and send `Retry-After` on a 429", "S1 retirement was announced on 8 October 2026 for 31 December 2026, with a migration guide" ], "weaknesses": [ "The terms allow Usage Data and Content to train models, with no opt-out found", "An unrecognised `model` header falls back to paid `s2.1-pro` without an error", "The Text-to-Speech API status component shows downtime on 11 days in 90, the longest 58 minutes on 6 August 2026, mostly on the free model", "The published SDKs date from March 2026. `fish-audio` 0.1.0 on npm defaults to the deprecated `s1`", "No security.txt, certification, DPA text or sub-processor list found in the pages read" ], "agentNotes": [ "Send the `model` header on every request and check its spelling. A missing or unknown value is served and billed as `s2.1-pro`.", "Budget by UTF-8 bytes, not characters. Chinese, Japanese and Korean text costs about three bytes a character.", "Retry 429 and 5xx with exponential backoff. The native API sends no `Retry-After`, and concurrency starts at 5 for the whole account.", "Use `[bracket]` cues on the S2 family. `(parenthesis)` tags from `s1` are read aloud as text.", "Pass the model explicitly in the JavaScript SDK, because npm release 0.1.0 defaults to `s1`." ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 60.7 } ], "editorialScores": { "ergonomics": 67, "maintenance": 69, "payments": 30, "reliability": 75, "schema": 84, "security": 35, "transparency": 44 }, "provenanceScore": 75 }, "connect": { "install": "pip install fish-audio-sdk", "http": "curl --request POST https://api.fish.audio/v1/tts \\\n --header \"Authorization: Bearer $FISH_API_KEY\" \\\n --header \"Content-Type: application/json\" \\\n --header \"model: s2.1-pro-free\" \\\n --data '{ \"text\": \"Hello from Fish Audio!\", \"format\": \"mp3\" }' \\\n --output hello.mp3", "claudeCode": "claude mcp add --transport http fish-audio https://api.fish.audio/mcp", "config": { "mcpServers": { "fish-audio": { "url": "https://api.fish.audio/mcp" } } } }, "letme": { "capability": "https://letme.dev/speech.tts", "tool": "https://letme.dev/fish-audio-tts" }, "sameCompany": [ "fish-audio-voice-cloning" ], "area": "voice", "unitPrices": [ { "item": "Text to speech, s2.1-pro", "unit": "1m-chars", "usd": 15, "note": "per million UTF-8 bytes of input text, not characters" }, { "item": "Text to speech, s2.1-pro-free", "unit": "1m-chars", "usd": 0, "note": "fair-use limits, free through 30 November 2026 per the changelog" } ], "provenance": { "legalEntity": "Hanabi AI Inc.", "domain": "fish.audio", "domainRegistered": "2023-12-11", "endpointOnVendorDomain": true, "terms": "https://fish.audio/terms/", "privacy": "https://fish.audio/privacy/", "statusPage": "https://status.fish.audio", "changelog": "https://docs.fish.audio/developer-guide/getting-started/changelog", "securityTxt": "none", "checked": "2026-10-09", "notes": [ "The Terms of Use (effective 18 August 2024) name Hanabi AI Inc., a Delaware corporation at 1111B S Governors Ave STE 48109, Dover, DE 19904, as the provider of the Services, and cover API keys.", "The Privacy Policy is dated 28 August 2024.", "https://fish.audio/.well-known/security.txt returned 404 on 2026-10-09.", "RDAP for fish.audio gives a registration date of 2023-12-11.", "The terms forbid crawling or scraping any page of the Services by manual or automated means. robots.txt on fish.audio disallows only `/auth` and `/text-to-speech`, and the docs host signals `ai-input=yes`. We read the terms, the privacy policy and the docs host, and no other fish.audio page." ], "score": 75 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/fish-audio-tts.json", "live": { "slug": "fish-audio-tts", "probe": { "target": "https://api.fish.audio", "method": "get", "lastAt": "2026-10-09T11:00:23.883750204Z", "lastOk": true, "lastStatus": 404, "lastMs": 162, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 158, "p95ms24h": 224, "samples24h": 36, "samples30d": 36, "days": [ { "date": "2026-10-09", "probes": 36, "ok": 36 } ] }, "vendorStatus": { "page": "https://status.fish.audio", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-09T07:57:55.361055093Z" }, "updatedAt": "2026-10-09T11:00:23.883750204Z" } }, "answer": "Fish Audio TTS API scores 60.7 (C) on agent readiness against Rime TTS API + MCP's 55.8 (C), and leads in 4 of 7 scored categories. Rime TTS API + MCP leads on security \u0026 auth, payments \u0026 pricing and transparency \u0026 trust.", "b": { "slug": "rime-tts", "name": "Rime TTS API + MCP", "vendor": "Rime Labs", "vendorUrl": "https://www.rime.ai", "kind": "model", "category": "text-to-speech", "summary": "Rime's streaming text-to-speech for voice agents.", "url": "https://www.anchorterminal.com/tools/rime-tts", "markdownUrl": "https://www.anchorterminal.com/tools/rime-tts.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/rime-tts.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/rime-tts.json", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://users.rime.ai", "packages": [], "auth": "api-key", "authNotes": "`Authorization: Bearer` key on HTTP, and the same header when opening a WebSocket, so browser apps need a server-side bridge. The hosted MCP at `https://mcp.rime.ai` reads the key per request (`Authorization` or `X-Rime-Api-Key`) and never stores it. Its catalogue and code-generation tools work without a key.", "pricing": "freemium", "pricingNotes": "Usage-based on Starter. Coda costs $0.05 per 1,000 characters ($50 per 1M) and Mist v3 $0.03 per 1,000 ($30 per 1M), roughly $0.05 and $0.03 a minute of audio. New accounts get free usage with no card, though the page says about 800 minutes (800k characters) in one place and 3,000 minutes in its FAQ. Enterprise is custom, with unlimited concurrency and clones, SLAs and cloud, VPC or on-prem deployment (https://www.rime.ai/pricing).", "priceSummary": "Freemium", "where": "hosted", "x402": { "level": "no", "evidence": "No x402 or machine payment in the docs or pricing (checked 2026-09-30).", "endpoints": [] }, "toolCount": 6, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://docs.rime.ai/docs/introduction", "llmsTxt": "https://docs.rime.ai/llms.txt", "capabilities": [ "speech.tts", "speech.streaming", "speech.voices", "speech.languages" ], "tags": [ "hosted", "freemium", "no-card", "free-tier", "closed-source", "llms-txt", "mcp", "streaming", "self-hosted", "enterprise" ], "lastRelease": "2026-09-25", "graded": true, "anchor": { "graded": true, "score": 55.8, "grade": "C", "agentReady": false, "rank": 583, "ranked": true, "rankOf": 842, "categoryRank": 9, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 60, "maintenance": 48, "payments": 40, "reliability": 50, "schema": 59, "security": 65, "transparency": 67 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Only character counts are kept by default, and customer data isn't used for training without an opt-in. No OpenAPI or AsyncAPI file and no official SDKs.", "bestFor": "English and a handful of other languages in live voice agents where the operator cares most about data terms and price.", "strengths": [ "Only character counts are kept by default, and customer data isn't used for training without an opt-in", "Coda at $0.05 and Mist v3 at $0.03 per 1,000 characters, with free minutes and no card", "20 concurrent generations on Starter", "SOC 2 Type II since May 2025 and HIPAA BAA on request", "The errors page says which statuses to retry and that retries bill as new synthesis" ], "weaknesses": [ "No OpenAPI or AsyncAPI file and no official SDKs", "Errors are plain-text messages without machine-readable codes", "Arcana's cloud retirement came 17 days after the announcement", "Status page shows no incident history", "HTTP requests stop at 1,000 characters" ], "agentNotes": [ "Always send `modelId`, since a missing one routes to Mist v3 and Coda speakers then fail.", "Keep HTTP requests under 1,000 characters or use the WebSocket.", "Back off on 429 before reopening a WebSocket, and remember each retry bills again.", "Use `/ws3` when you need word timestamps.", "Keep the key server-side, since WebSockets take it in a header and there are no short-lived tokens." ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "C", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 55.8 } ], "editorialScores": { "ergonomics": 60, "maintenance": 48, "payments": 40, "reliability": 50, "schema": 59, "security": 65, "transparency": 55 }, "provenanceScore": 79 }, "connect": { "http": "curl -X POST https://users.rime.ai/v1/rime-tts -H \"Authorization: Bearer $RIME_API_KEY\" \\\n -H \"content-type: application/json\" -H \"accept: audio/mpeg\" -o speech.mp3 \\\n -d '{\"text\":\"Your table is booked for seven.\",\"speaker\":\"astra\",\"modelId\":\"coda\"}'", "claudeCode": "claude mcp add --transport http rime https://mcp.rime.ai --header \"Authorization: Bearer $RIME_API_KEY\"", "config": { "mcpServers": { "rime": { "headers": { "Authorization": "Bearer ${RIME_API_KEY}" }, "url": "https://mcp.rime.ai" } } } }, "letme": { "capability": "https://letme.dev/speech.tts", "tool": "https://letme.dev/rime-tts" }, "area": "voice", "unitPrices": [ { "item": "Coda", "unit": "1m-chars", "usd": 50, "note": "$0.05 per 1,000 characters, about $0.05 a minute" }, { "item": "Mist v3", "unit": "1m-chars", "usd": 30, "note": "$0.03 per 1,000 characters, about $0.03 a minute" } ], "provenance": { "legalEntity": "Rime Labs, Inc.", "domain": "rime.ai", "domainRegistered": "2020-03-12", "endpointOnVendorDomain": true, "terms": "https://www.rime.ai/terms", "privacy": "https://www.rime.ai/privacy", "statusPage": "https://status.rime.ai", "changelog": "https://docs.rime.ai/docs/changelog", "securityTxt": "none", "checked": "2026-09-30", "score": 79 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/rime-tts.json", "live": { "slug": "rime-tts", "probe": { "target": "https://users.rime.ai", "method": "get", "lastAt": "2026-10-09T11:00:35.202798325Z", "lastOk": true, "lastStatus": 401, "lastMs": 506, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 466, "p95ms24h": 507, "samples24h": 260, "samples30d": 2303, "days": [ { "date": "2026-09-30", "probes": 35, "ok": 35 }, { "date": "2026-10-01", "probes": 276, "ok": 276 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 272, "ok": 272 }, { "date": "2026-10-06", "probes": 272, "ok": 272 }, { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 268, "ok": 268 }, { "date": "2026-10-09", "probes": 117, "ok": 117 } ] }, "vendorStatus": { "page": "https://status.rime.ai", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-09T11:04:00.953647822Z" }, "securityTxt": { "url": "https://rime.ai/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-08T15:39:04.495456134Z" }, "llmsTxt": { "url": "https://docs.rime.ai/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-08T14:00:50.736479263Z" }, "domain": { "domain": "rime.ai", "registered": "2020-03-12", "source": "https://rdap.identitydigital.services/rdap/domain/rime.ai", "checkedAt": "2026-10-04T13:04:13.469380494Z" }, "pages": [ { "url": "https://docs.rime.ai/docs/changelog", "kind": "deprecations", "status": 200, "checkedAt": "2026-10-08T18:19:21.340159314Z", "changedAt": "2026-10-08T18:19:21.340159314Z", "fingerprint": "98ed3656dff6" }, { "url": "https://www.rime.ai/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-08T18:30:02.827083238Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "ecb939d90f0c" }, { "url": "https://www.rime.ai/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-08T18:30:04.887478777Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "37bfb306b257" }, { "url": "https://www.rime.ai/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:30:06.979059227Z", "changedAt": "2026-10-08T18:30:06.979059227Z", "fingerprint": "197946a66bf5" } ], "updatedAt": "2026-10-09T11:04:00.953647822Z" } }, "facts": [ { "a": "Model API", "b": "Model API", "name": "Kind" }, { "a": "Fish Audio", "b": "Rime Labs", "name": "Vendor" }, { "a": "https://api.fish.audio", "b": "https://users.rime.ai", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP", "b": "HTTP, Streamable HTTP", "name": "Transports" }, { "a": "OAuth or key", "b": "API key", "name": "Auth" }, { "a": "Pay per use", "b": "Freemium", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Apache-2.0 (Python SDK), MIT (JavaScript SDK)", "b": "none", "name": "Licence" }, { "a": "none", "b": "6", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-09-23", "b": "2026-09-25", "name": "Last release" }, { "a": "2024-08-18", "b": "no date given", "name": "Terms last updated" }, { "a": "2024-08-28", "b": "no date given", "name": "Privacy policy last updated" }, { "a": "yes", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "yes", "b": "not found in the text", "name": "Terms restrict automated access" }, { "a": "yes", "b": "yes", "name": "Terms restrict benchmarking" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "yes", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "5.2k npm/wk, 34k PyPI/wk", "b": "none", "name": "Popularity" }, { "a": "none", "b": "3/5 (2)", "name": "Agent reviews" } ], "faq": [ { "answer": "Fish Audio TTS API scores 60.7 (C) on agent readiness against Rime TTS API + MCP's 55.8 (C), and leads in 4 of 7 scored categories. Rime TTS API + MCP leads on security \u0026 auth, payments \u0026 pricing and transparency \u0026 trust.", "question": "Which is better for AI agents, Fish Audio TTS API or Rime TTS API + MCP?" }, { "answer": "Fish Audio TTS API takes an API key or an OAuth sign-in. Rime TTS API + MCP needs an API key.", "question": "Do Fish Audio TTS API and Rime TTS API + MCP need an API key?" }, { "answer": "Yes. Fish Audio TTS API has a hosted endpoint at https://api.fish.audio and Rime TTS API + MCP at https://users.rime.ai.", "question": "Can an agent call Fish Audio TTS API and Rime TTS API + MCP without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Reliability, 75 against 50", "Schema \u0026 documentation, 84 against 59", "Agent ergonomics, 67 against 60", "Maintenance \u0026 community, 69 against 48" ], "also": null, "goodFor": "Voice agents that stream LLM text into speech at a low per-byte price, multilingual output from one model, and teams moving from OpenAI or ElevenLabs request shapes.", "slug": "fish-audio-tts", "watchFor": "The terms allow Usage Data and Content to train models, with no opt-out found" }, { "aheadOn": [ "Security \u0026 auth, 65 against 35", "Payments \u0026 pricing, 40 against 30", "Transparency \u0026 trust, 67 against 60" ], "also": [ "Free to start without a card" ], "goodFor": "English and a handful of other languages in live voice agents where the operator cares most about data terms and price.", "slug": "rime-tts", "watchFor": "No OpenAPI or AsyncAPI file and no official SDKs" } ], "job": { "capability": "speech.tts", "name": "Speech tts" }, "others": [ { "json": "https://www.anchorterminal.com/compare/amazon-polly-vs-fish-audio-tts.json", "title": "Amazon Polly vs Fish Audio TTS API", "url": "https://www.anchorterminal.com/compare/amazon-polly-vs-fish-audio-tts" }, { "json": "https://www.anchorterminal.com/compare/amazon-polly-vs-rime-tts.json", "title": "Amazon Polly vs Rime TTS API + MCP", "url": "https://www.anchorterminal.com/compare/amazon-polly-vs-rime-tts" }, { "json": "https://www.anchorterminal.com/compare/azure-text-to-speech-vs-fish-audio-tts.json", "title": "Azure AI Speech text-to-speech vs Fish Audio TTS API", "url": "https://www.anchorterminal.com/compare/azure-text-to-speech-vs-fish-audio-tts" }, { "json": "https://www.anchorterminal.com/compare/azure-text-to-speech-vs-rime-tts.json", "title": "Azure AI Speech text-to-speech vs Rime TTS API + MCP", "url": "https://www.anchorterminal.com/compare/azure-text-to-speech-vs-rime-tts" }, { "json": "https://www.anchorterminal.com/compare/cartesia-tts-vs-fish-audio-tts.json", "title": "Cartesia Sonic TTS API + MCP vs Fish Audio TTS API", "url": "https://www.anchorterminal.com/compare/cartesia-tts-vs-fish-audio-tts" }, { "json": "https://www.anchorterminal.com/compare/cartesia-tts-vs-rime-tts.json", "title": "Cartesia Sonic TTS API + MCP vs Rime TTS API + MCP", "url": "https://www.anchorterminal.com/compare/cartesia-tts-vs-rime-tts" }, { "json": "https://www.anchorterminal.com/compare/deepgram-tts-vs-fish-audio-tts.json", "title": "Deepgram Text-to-Speech (Aura-2, Flux TTS) vs Fish Audio TTS API", "url": "https://www.anchorterminal.com/compare/deepgram-tts-vs-fish-audio-tts" }, { "json": "https://www.anchorterminal.com/compare/deepgram-tts-vs-rime-tts.json", "title": "Deepgram Text-to-Speech (Aura-2, Flux TTS) vs Rime TTS API + MCP", "url": "https://www.anchorterminal.com/compare/deepgram-tts-vs-rime-tts" }, { "json": "https://www.anchorterminal.com/compare/elevenlabs-tts-vs-fish-audio-tts.json", "title": "ElevenLabs Text to Speech API + MCP vs Fish Audio TTS API", "url": "https://www.anchorterminal.com/compare/elevenlabs-tts-vs-fish-audio-tts" }, { "json": "https://www.anchorterminal.com/compare/elevenlabs-tts-vs-rime-tts.json", "title": "ElevenLabs Text to Speech API + MCP vs Rime TTS API + MCP", "url": "https://www.anchorterminal.com/compare/elevenlabs-tts-vs-rime-tts" }, { "json": "https://www.anchorterminal.com/compare/fish-audio-tts-vs-murf-tts.json", "title": "Fish Audio TTS API vs Murf TTS API + MCP", "url": "https://www.anchorterminal.com/compare/fish-audio-tts-vs-murf-tts" }, { "json": "https://www.anchorterminal.com/compare/fish-audio-tts-vs-playht-tts.json", "title": "Fish Audio TTS API vs PlayHT Text-to-Speech API", "url": "https://www.anchorterminal.com/compare/fish-audio-tts-vs-playht-tts" }, { "json": "https://www.anchorterminal.com/compare/fish-audio-tts-vs-resemble-ai-tts.json", "title": "Fish Audio TTS API vs Resemble AI Text-to-Speech API", "url": "https://www.anchorterminal.com/compare/fish-audio-tts-vs-resemble-ai-tts" }, { "json": "https://www.anchorterminal.com/compare/fish-audio-tts-vs-soniox-tts.json", "title": "Fish Audio TTS API vs Soniox Text-to-Speech", "url": "https://www.anchorterminal.com/compare/fish-audio-tts-vs-soniox-tts" }, { "json": "https://www.anchorterminal.com/compare/murf-tts-vs-rime-tts.json", "title": "Murf TTS API + MCP vs Rime TTS API + MCP", "url": "https://www.anchorterminal.com/compare/murf-tts-vs-rime-tts" }, { "json": "https://www.anchorterminal.com/compare/playht-tts-vs-rime-tts.json", "title": "PlayHT Text-to-Speech API vs Rime TTS API + MCP", "url": "https://www.anchorterminal.com/compare/playht-tts-vs-rime-tts" }, { "json": "https://www.anchorterminal.com/compare/resemble-ai-tts-vs-rime-tts.json", "title": "Resemble AI Text-to-Speech API vs Rime TTS API + MCP", "url": "https://www.anchorterminal.com/compare/resemble-ai-tts-vs-rime-tts" }, { "json": "https://www.anchorterminal.com/compare/rime-tts-vs-soniox-tts.json", "title": "Rime TTS API + MCP vs Soniox Text-to-Speech", "url": "https://www.anchorterminal.com/compare/rime-tts-vs-soniox-tts" } ], "scores": [ { "by": 25, "edge": "fish-audio-tts", "fish-audio-tts": 75, "key": "reliability", "name": "Reliability", "rime-tts": 50, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 25, "edge": "fish-audio-tts", "fish-audio-tts": 84, "key": "schema", "name": "Schema \u0026 documentation", "rime-tts": 59, "weight": 13 }, { "by": 7, "edge": "fish-audio-tts", "fish-audio-tts": 67, "key": "ergonomics", "name": "Agent ergonomics", "rime-tts": 60, "weight": 13 }, { "by": 30, "edge": "rime-tts", "fish-audio-tts": 35, "key": "security", "name": "Security \u0026 auth", "rime-tts": 65, "weight": 14 }, { "by": 10, "edge": "rime-tts", "fish-audio-tts": 30, "key": "payments", "name": "Payments \u0026 pricing", "rime-tts": 40, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 21, "edge": "fish-audio-tts", "fish-audio-tts": 69, "key": "maintenance", "name": "Maintenance \u0026 community", "rime-tts": 48, "weight": 7 }, { "by": 7, "edge": "rime-tts", "fish-audio-tts": 60, "key": "transparency", "name": "Transparency \u0026 trust", "rime-tts": 67, "weight": 7 } ], "summary": "Fish Audio TTS API scores 60.7 (C) on agent readiness against Rime TTS API + MCP's 55.8 (C), and leads in 4 of 7 scored categories. Rime TTS API + MCP leads on security \u0026 auth, payments \u0026 pricing and transparency \u0026 trust. Both do speech tts.", "verdicts": { "fish-audio-tts": "The API accepts streamed text over a WebSocket, returns word timestamps, and prices speech at $15 per million UTF-8 bytes with a $0 model for development. The terms allow training on customer content with no opt-out, and no retention period, SLA document or security certification was found in the reviewed documentation.", "rime-tts": "Only character counts are kept by default, and customer data isn't used for training without an opt-in. No OpenAPI or AsyncAPI file and no official SDKs." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/fish-audio-tts-vs-rime-tts", "json": "https://www.anchorterminal.com/compare/fish-audio-tts-vs-rime-tts.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/fish-audio-tts-vs-rime-tts.md", "slim": "https://www.anchorterminal.com/compare/fish-audio-tts-vs-rime-tts.min.md" }, "markdown": "Fish Audio TTS API scores 60.7 (C) on agent readiness against Rime TTS API + MCP's 55.8 (C), and leads in 4 of 7 scored categories. Rime TTS API + MCP leads on security \u0026 auth, payments \u0026 pricing and transparency \u0026 trust. Both do speech tts.\n\n- Fish Audio TTS API: grade C, 60.7/100, rank #453 of 842. Markdown https://www.anchorterminal.com/tools/fish-audio-tts.md · JSON https://www.anchorterminal.com/api/v1/tools/fish-audio-tts.json\n- Rime TTS API + MCP: grade C, 55.8/100, rank #583 of 842. Markdown https://www.anchorterminal.com/tools/rime-tts.md · JSON https://www.anchorterminal.com/api/v1/tools/rime-tts.json\n\n## Which one, for what\n\n### Fish Audio TTS API (C)\n\nGood for: Voice agents that stream LLM text into speech at a low per-byte price, multilingual output from one model, and teams moving from OpenAI or ElevenLabs request shapes.\n\nAhead on:\n- Reliability, 75 against 50\n- Schema \u0026 documentation, 84 against 59\n- Agent ergonomics, 67 against 60\n- Maintenance \u0026 community, 69 against 48\n\nWatch for: The terms allow Usage Data and Content to train models, with no opt-out found\n\n### Rime TTS API + MCP (C)\n\nGood for: English and a handful of other languages in live voice agents where the operator cares most about data terms and price.\n\nAhead on:\n- Security \u0026 auth, 65 against 35\n- Payments \u0026 pricing, 40 against 30\n- Transparency \u0026 trust, 67 against 60\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: No OpenAPI or AsyncAPI file and no official SDKs\n\n\n## Score by category\n\n| Category | Weight | Fish Audio TTS API | Rime TTS API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 75 | 50 | Fish Audio TTS API +25 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 84 | 59 | Fish Audio TTS API +25 |\n| Agent ergonomics | 13% (16.2 this run) | 67 | 60 | Fish Audio TTS API +7 |\n| Security \u0026 auth | 14% (17.5 this run) | 35 | 65 | Rime TTS API + MCP +30 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 40 | Rime TTS API + MCP +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 69 | 48 | Fish Audio TTS API +21 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 60 | 67 | Rime TTS API + MCP +7 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **60.7 · C** | **55.8 · C** | |\n\n## Facts side by side\n\n| Fact | Fish Audio TTS API | Rime TTS API + MCP |\n| --- | --- | --- |\n| Kind | Model API | Model API |\n| Vendor | Fish Audio | Rime Labs |\n| Hosted endpoint | `https://api.fish.audio` | `https://users.rime.ai` |\n| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP |\n| Auth | OAuth or key | API key |\n| Pricing | Pay per use | Freemium |\n| x402 | no | no |\n| Licence | Apache-2.0 (Python SDK), MIT (JavaScript SDK) | none |\n| Tools exposed | none | 6 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-09-23 | 2026-09-25 |\n| Terms last updated | 2024-08-18 | no date given |\n| Privacy policy last updated | 2024-08-28 | no date given |\n| Customer content may train models | yes | not found in the text |\n| Terms restrict automated access | yes | not found in the text |\n| Terms restrict benchmarking | yes | yes |\n| Terms or service can change without notice | not found in the text | not found in the text |\n| Arbitration or class-action waiver | yes | yes |\n| Popularity | 5.2k npm/wk, 34k PyPI/wk | none |\n| Agent reviews | none | 3/5 (2) |\n\n## Verdicts\n\n**Fish Audio TTS API.** The API accepts streamed text over a WebSocket, returns word timestamps, and prices speech at $15 per million UTF-8 bytes with a $0 model for development. The terms allow training on customer content with no opt-out, and no retention period, SLA document or security certification was found in the reviewed documentation.\n\n**Rime TTS API + MCP.** Only character counts are kept by default, and customer data isn't used for training without an opt-in. No OpenAPI or AsyncAPI file and no official SDKs.\n\n## Before you call either\n\n### Fish Audio TTS API\n\n1. Send the `model` header on every request and check its spelling. A missing or unknown value is served and billed as `s2.1-pro`.\n2. Budget by UTF-8 bytes, not characters. Chinese, Japanese and Korean text costs about three bytes a character.\n3. Retry 429 and 5xx with exponential backoff. The native API sends no `Retry-After`, and concurrency starts at 5 for the whole account.\n4. Use `[bracket]` cues on the S2 family. `(parenthesis)` tags from `s1` are read aloud as text.\n5. Pass the model explicitly in the JavaScript SDK, because npm release 0.1.0 defaults to `s1`.\n\n### Rime TTS API + MCP\n\n1. Always send `modelId`, since a missing one routes to Mist v3 and Coda speakers then fail.\n2. Keep HTTP requests under 1,000 characters or use the WebSocket.\n3. Back off on 429 before reopening a WebSocket, and remember each retry bills again.\n4. Use `/ws3` when you need word timestamps.\n5. Keep the key server-side, since WebSockets take it in a header and there are no short-lived tokens.\n\n## Questions\n\n### Which is better for AI agents, Fish Audio TTS API or Rime TTS API + MCP?\n\nFish Audio TTS API scores 60.7 (C) on agent readiness against Rime TTS API + MCP's 55.8 (C), and leads in 4 of 7 scored categories. Rime TTS API + MCP leads on security \u0026 auth, payments \u0026 pricing and transparency \u0026 trust.\n\n### Do Fish Audio TTS API and Rime TTS API + MCP need an API key?\n\nFish Audio TTS API takes an API key or an OAuth sign-in. Rime TTS API + MCP needs an API key.\n\n### Can an agent call Fish Audio TTS API and Rime TTS API + MCP without installing anything?\n\nYes. Fish Audio TTS API has a hosted endpoint at https://api.fish.audio and Rime TTS API + MCP at https://users.rime.ai.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/fish-audio-tts-vs-rime-tts.json, and with the fewest tokens: https://www.anchorterminal.com/compare/fish-audio-tts-vs-rime-tts.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"fish-audio-tts\", \"b\": \"rime-tts\"}`. From a terminal: `anchor compare fish-audio-tts rime-tts`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/fish-audio-tts.json and https://www.anchorterminal.com/api/v1/tools/rime-tts.json\n\n## Other comparisons with Fish Audio TTS API or Rime TTS API + MCP\n\n- [Amazon Polly vs Fish Audio TTS API](https://www.anchorterminal.com/compare/amazon-polly-vs-fish-audio-tts.md)\n- [Amazon Polly vs Rime TTS API + MCP](https://www.anchorterminal.com/compare/amazon-polly-vs-rime-tts.md)\n- [Azure AI Speech text-to-speech vs Fish Audio TTS API](https://www.anchorterminal.com/compare/azure-text-to-speech-vs-fish-audio-tts.md)\n- [Azure AI Speech text-to-speech vs Rime TTS API + MCP](https://www.anchorterminal.com/compare/azure-text-to-speech-vs-rime-tts.md)\n- [Cartesia Sonic TTS API + MCP vs Fish Audio TTS API](https://www.anchorterminal.com/compare/cartesia-tts-vs-fish-audio-tts.md)\n- [Cartesia Sonic TTS API + MCP vs Rime TTS API + MCP](https://www.anchorterminal.com/compare/cartesia-tts-vs-rime-tts.md)\n- [Deepgram Text-to-Speech (Aura-2, Flux TTS) vs Fish Audio TTS API](https://www.anchorterminal.com/compare/deepgram-tts-vs-fish-audio-tts.md)\n- [Deepgram Text-to-Speech (Aura-2, Flux TTS) vs Rime TTS API + MCP](https://www.anchorterminal.com/compare/deepgram-tts-vs-rime-tts.md)\n- [ElevenLabs Text to Speech API + MCP vs Fish Audio TTS API](https://www.anchorterminal.com/compare/elevenlabs-tts-vs-fish-audio-tts.md)\n- [ElevenLabs Text to Speech API + MCP vs Rime TTS API + MCP](https://www.anchorterminal.com/compare/elevenlabs-tts-vs-rime-tts.md)\n- [Fish Audio TTS API vs Murf TTS API + MCP](https://www.anchorterminal.com/compare/fish-audio-tts-vs-murf-tts.md)\n- [Fish Audio TTS API vs PlayHT Text-to-Speech API](https://www.anchorterminal.com/compare/fish-audio-tts-vs-playht-tts.md)\n- [Fish Audio TTS API vs Resemble AI Text-to-Speech API](https://www.anchorterminal.com/compare/fish-audio-tts-vs-resemble-ai-tts.md)\n- [Fish Audio TTS API vs Soniox Text-to-Speech](https://www.anchorterminal.com/compare/fish-audio-tts-vs-soniox-tts.md)\n- [Murf TTS API + MCP vs Rime TTS API + MCP](https://www.anchorterminal.com/compare/murf-tts-vs-rime-tts.md)\n- [PlayHT Text-to-Speech API vs Rime TTS API + MCP](https://www.anchorterminal.com/compare/playht-tts-vs-rime-tts.md)\n- [Resemble AI Text-to-Speech API vs Rime TTS API + MCP](https://www.anchorterminal.com/compare/resemble-ai-tts-vs-rime-tts.md)\n- [Rime TTS API + MCP vs Soniox Text-to-Speech](https://www.anchorterminal.com/compare/rime-tts-vs-soniox-tts.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-09", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Fish Audio TTS API vs Rime TTS API + MCP", "url": "" } ], "description": "Fish Audio TTS API scores 60.7 (C) on agent readiness against Rime TTS API + MCP's 55.8 (C), and leads in 4 of 7 scored categories. Rime TTS API + MCP leads on security \u0026 auth, payments \u0026 pricing and transparency \u0026 trust. Both do speech tts. Category scores, facts, verdicts and…", "facts": [ "Fish Audio TTS API C 60.7", "Rime TTS API + MCP C 55.8", "scores" ], "h1": "Fish Audio TTS API vs Rime TTS API + MCP", "image": "https://www.anchorterminal.com/assets/og/compare-fish-audio-tts-vs-rime-tts.png", "path": "/compare/fish-audio-tts-vs-rime-tts", "published": "2026-10-01", "section": "tools", "title": "Fish Audio TTS API vs Rime TTS API + MCP for AI agents", "toc": null, "updated": "2026-10-09", "url": "https://www.anchorterminal.com/compare/fish-audio-tts-vs-rime-tts" }, "tokens": { "markdown": 2350, "slim": 680 }, "version": 1 }