{
  "data": {
    "a": {
      "slug": "resemble-ai-tts",
      "name": "Resemble AI Text-to-Speech API",
      "vendor": "Resemble AI",
      "vendorUrl": "https://www.resemble.ai",
      "kind": "model",
      "category": "text-to-speech",
      "summary": "Resemble's TTS API on its current Resemble Ultra model, which the changelog says is powered by xAI.",
      "url": "https://www.anchorterminal.com/tools/resemble-ai-tts",
      "markdownUrl": "https://www.anchorterminal.com/tools/resemble-ai-tts.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/resemble-ai-tts.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/resemble-ai-tts.json",
      "repo": "https://github.com/resemble-ai/resemble-node",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://app.resemble.ai/api/v2",
      "packages": [
        {
          "registry": "npm",
          "name": "@resemble/node"
        },
        {
          "registry": "pypi",
          "name": "resemble"
        }
      ],
      "auth": "api-key",
      "authNotes": "`Authorization: Bearer` API key on every server. Synthesis runs on `f.cluster.resemble.ai`, voices and projects on `app.resemble.ai/api/v2`, streaming on `wss://websocket.cluster.resemble.ai`. Some synchronous examples in the docs leave out the `Bearer` prefix.",
      "pricing": "usage",
      "pricingNotes": "Billed per second of generated audio. Flex has no subscription and no card to sign up, at $0.00067 a second (about $0.04 a minute). Team ($350 a month, $280 billed annually) and Business ($1,000, $800 annually) cut that to $0.0005 a second (about $0.03 a minute). WebSocket streaming needs Business. Extra seats cost $20 on Flex and $200 on Team and Business. Rates come from the public plans API, since the pricing page lists only detection products (https://app.resemble.ai/billing/api/v1/plans).",
      "priceSummary": "$350 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402 or machine payment in the docs or pricing (checked 2026-09-30).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 15,
        "npmWeekly": 8053,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://docs.resemble.ai/voice-generation/text-to-speech",
      "llmsTxt": "https://docs.resemble.ai/llms.txt",
      "openapi": "https://docs.resemble.ai/openapi.json",
      "capabilities": [
        "speech.tts",
        "speech.streaming",
        "speech.voices",
        "speech.ssml"
      ],
      "tags": [
        "hosted",
        "no-card",
        "closed-source",
        "python",
        "typescript",
        "openapi",
        "llms-txt",
        "streaming",
        "watermark",
        "enterprise"
      ],
      "lastRelease": "2026-06-30",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 50.6,
        "grade": "D",
        "agentReady": false,
        "rank": 357,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 9,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 46,
          "maintenance": 31,
          "payments": 15,
          "reliability": 75,
          "schema": 75,
          "security": 48,
          "transparency": 68
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": -3,
        "negativeNotes": [
          "2026-06-29. Resemble began deprecating every earlier TTS model, including the Chatterbox family, and the model-versions page now says voices on them can no longer generate audio until upgraded to Resemble Ultra. We found no effective date or notice period. Small deduction because the change is documented and upgrade is self-serve. https://www.resemble.ai/changelog and https://docs.resemble.ai/getting-started/model-versions.md"
        ],
        "verdict": "OpenAPI file in JSON and YAML, llms.txt and Markdown pages. Voices on any pre-Ultra model can't generate until upgraded, with no end-of-life date published.",
        "strengths": [
          "OpenAPI file in JSON and YAML, llms.txt and Markdown pages",
          "SSML with prompt, temperature and exaggeration controls and inline tags such as `[laugh]`",
          "Status page checks Ultra HTTP synthesis directly, 100 per cent over 90 days",
          "Flex has no subscription fee, $0.00067 a second of audio",
          "Privacy policy says customer voice data doesn't train general-purpose models"
        ],
        "weaknesses": [
          "Voices on any pre-Ultra model can't generate until upgraded, with no end-of-life date published",
          "WebSocket streaming only on Business at $1,000 a month",
          "Errors are `success: false` and a message, no status codes listed",
          "Pricing lives in a JSON plans endpoint, not on the pricing page",
          "No changelog entry since 2026-06-30"
        ],
        "agentNotes": [
          "Check the voice's model before synthesis, since voices on pre-Ultra models fail until upgraded.",
          "Keep each synchronous request under 2,000 characters.",
          "Decode `audio_content` from base64 on `/synthesize`, or call `/stream` for raw WAV chunks.",
          "Send `Authorization: Bearer`, since some doc examples leave out the prefix.",
          "Log the request ID with every failure, since the error body has no code."
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 2,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "D",
            "methodology": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 50.6
          }
        ],
        "editorialScores": {
          "ergonomics": 46,
          "maintenance": 31,
          "payments": 15,
          "reliability": 75,
          "schema": 75,
          "security": 48,
          "transparency": 50
        },
        "provenanceScore": 86
      },
      "connect": {
        "http": "curl -X POST https://f.cluster.resemble.ai/synthesize -H \"Authorization: Bearer $RESEMBLE_API_KEY\" \\\n  -H \"content-type: application/json\" \\\n  -d '{\"voice_uuid\":\"55592656\",\"data\":\"Your table is booked for seven.\",\"output_format\":\"mp3\"}' \\\n  | jq -r .audio_content | base64 --decode \u003e speech.mp3"
      },
      "letme": {
        "capability": "https://letme.dev/speech.tts",
        "tool": "https://letme.dev/resemble-ai-tts"
      },
      "sameCompany": [
        "resemble-ai-voice-cloning"
      ],
      "area": "voice",
      "unitPrices": [
        {
          "item": "Resemble Ultra TTS on Flex",
          "unit": "audio-minute",
          "usd": 0.0402,
          "note": "$0.00067 a second, no subscription"
        },
        {
          "item": "Resemble Ultra TTS on Team or Business",
          "unit": "audio-minute",
          "usd": 0.03,
          "note": "$0.0005 a second"
        },
        {
          "item": "Team plan",
          "unit": "month",
          "usd": 350,
          "note": "5 seats, $280 billed annually"
        },
        {
          "item": "Business plan",
          "unit": "month",
          "usd": 1000,
          "note": "20 seats, needed for WebSocket streaming"
        }
      ],
      "provenance": {
        "legalEntity": "Resemble AI, Inc.",
        "domain": "resemble.ai",
        "domainRegistered": "2018-11-12",
        "endpointOnVendorDomain": true,
        "terms": "https://www.resemble.ai/terms-of-service",
        "privacy": "https://www.resemble.ai/privacy-policy",
        "statusPage": "https://status.resemble.ai",
        "changelog": "https://www.resemble.ai/changelog",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "notes": [
          "The privacy policy gives the address as 812 W Dana St, Mountain View, California"
        ],
        "score": 86
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/resemble-ai-tts.json",
      "live": {
        "slug": "resemble-ai-tts",
        "probe": {
          "target": "https://app.resemble.ai/api/v2",
          "method": "get",
          "lastAt": "2026-10-04T23:48:15.015848466Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 310,
          "authRequired": false,
          "uptime24h": 99.26,
          "uptime30d": 99.73,
          "p50ms24h": 311,
          "p95ms24h": 373,
          "samples24h": 272,
          "samples30d": 1100,
          "days": [
            {
              "date": "2026-09-30",
              "probes": 35,
              "ok": 35
            },
            {
              "date": "2026-10-01",
              "probes": 276,
              "ok": 275
            },
            {
              "date": "2026-10-02",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-03",
              "probes": 271,
              "ok": 271
            },
            {
              "date": "2026-10-04",
              "probes": 270,
              "ok": 268
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.resemble.ai",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-04T21:40:26.122903482Z"
        },
        "versions": [
          {
            "registry": "npm",
            "name": "@resemble/node",
            "version": "3.5.3",
            "seenAt": "2026-10-04T16:38:14.265469558Z"
          },
          {
            "registry": "pypi",
            "name": "resemble",
            "version": "1.9.0",
            "released": "2026-04-06",
            "seenAt": "2026-10-04T16:38:15.132468707Z"
          }
        ],
        "githubStars": 15,
        "npmWeekly": 9722,
        "pypiWeekly": 186,
        "securityTxt": {
          "url": "https://resemble.ai/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-04T15:15:39.395527714Z"
        },
        "llmsTxt": {
          "url": "https://docs.resemble.ai/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-04T15:18:10.652641425Z"
        },
        "domain": {
          "domain": "resemble.ai",
          "registered": "2018-11-12",
          "source": "https://rdap.identitydigital.services/rdap/domain/resemble.ai",
          "checkedAt": "2026-10-04T13:05:20.701682078Z"
        },
        "pages": [
          {
            "url": "https://www.resemble.ai/changelog",
            "kind": "deprecations",
            "status": 304,
            "checkedAt": "2026-10-04T15:51:50.742467031Z",
            "changedAt": "2026-10-02T15:27:53.988683525Z",
            "fingerprint": "76a0cb1bcf1b"
          },
          {
            "url": "https://www.resemble.ai/privacy-policy",
            "kind": "privacy",
            "status": 304,
            "checkedAt": "2026-10-04T15:51:52.7837749Z",
            "changedAt": "2026-10-02T15:27:56.034606073Z",
            "fingerprint": "356ce0463869"
          },
          {
            "url": "https://www.resemble.ai/terms-of-service",
            "kind": "terms",
            "status": 304,
            "checkedAt": "2026-10-04T15:51:54.78203578Z",
            "changedAt": "2026-10-02T15:27:58.03595641Z",
            "fingerprint": "427f88ce488d"
          }
        ],
        "updatedAt": "2026-10-04T23:48:15.015848466Z"
      }
    },
    "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": 56.1,
        "grade": "C",
        "agentReady": false,
        "rank": 305,
        "ranked": true,
        "rankOf": 452,
        "categoryRank": 8,
        "methodology": "0.3",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 60,
          "maintenance": 48,
          "payments": 40,
          "reliability": 50,
          "schema": 59,
          "security": 65,
          "transparency": 71
        },
        "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.",
        "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": "0.3",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 56.1
          }
        ],
        "editorialScores": {
          "ergonomics": 60,
          "maintenance": 48,
          "payments": 40,
          "reliability": 50,
          "schema": 59,
          "security": 65,
          "transparency": 55
        },
        "provenanceScore": 86
      },
      "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": 86
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/rime-tts.json",
      "live": {
        "slug": "rime-tts",
        "probe": {
          "target": "https://users.rime.ai",
          "method": "get",
          "lastAt": "2026-10-04T23:48:15.250620889Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 430,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 460,
          "p95ms24h": 509,
          "samples24h": 272,
          "samples30d": 1100,
          "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": 270,
              "ok": 270
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.rime.ai",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-04T21:40:27.329259246Z"
        },
        "securityTxt": {
          "url": "https://rime.ai/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-04T15:15:37.099790357Z"
        },
        "llmsTxt": {
          "url": "https://docs.rime.ai/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-04T15:18:12.002912Z"
        },
        "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": "2026-10-04T15:43:57.768372092Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "d83d0135c7c5"
          },
          {
            "url": "https://www.rime.ai/pricing",
            "kind": "pricing",
            "status": 304,
            "checkedAt": "2026-10-04T15:51:58.694941167Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "ecb939d90f0c"
          },
          {
            "url": "https://www.rime.ai/privacy",
            "kind": "privacy",
            "status": 304,
            "checkedAt": "2026-10-04T15:52:00.743793653Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "37bfb306b257"
          },
          {
            "url": "https://www.rime.ai/terms",
            "kind": "terms",
            "status": 304,
            "checkedAt": "2026-10-04T15:52:02.722779334Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "8312554d4669"
          }
        ],
        "updatedAt": "2026-10-04T23:48:15.250620889Z"
      }
    },
    "summary": "Rime TTS API + MCP has a score of 56.1 (C) against Resemble AI Text-to-Speech API's 50.6 (D). Both do speech tts. The largest gap is reliability, 25 points."
  },
  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/resemble-ai-tts-vs-rime-tts",
    "json": "https://www.anchorterminal.com/compare/resemble-ai-tts-vs-rime-tts.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/resemble-ai-tts-vs-rime-tts.md",
    "slim": "https://www.anchorterminal.com/compare/resemble-ai-tts-vs-rime-tts.min.md"
  },
  "markdown": "Rime TTS API + MCP has a score of 56.1 (C) against Resemble AI Text-to-Speech API's 50.6 (D). Both do speech tts. The largest gap is reliability, 25 points.\n\n- Resemble AI Text-to-Speech API: grade D, 50.6/100, rank #357 of 452. Markdown https://www.anchorterminal.com/tools/resemble-ai-tts.md · JSON https://www.anchorterminal.com/api/v1/tools/resemble-ai-tts.json\n- Rime TTS API + MCP: grade C, 56.1/100, rank #305 of 452. 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\nPick Resemble AI Text-to-Speech API for reliability (+25), schema \u0026 documentation (+16).\n\nPick Rime TTS API + MCP for agent ergonomics (+14), security \u0026 auth (+17), payments \u0026 pricing (+25), maintenance \u0026 community (+17).\n\n## Score by category\n\n| Category | Weight | Resemble AI Text-to-Speech API | Rime TTS API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 75 | 50 | Resemble AI Text-to-Speech API +25 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 75 | 59 | Resemble AI Text-to-Speech API +16 |\n| Agent ergonomics | 13% (16.2 this run) | 46 | 60 | Rime TTS API + MCP +14 |\n| Security \u0026 auth | 14% (17.5 this run) | 48 | 65 | Rime TTS API + MCP +17 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 15 | 40 | Rime TTS API + MCP +25 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 31 | 48 | Rime TTS API + MCP +17 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 68 | 71 | Rime TTS API + MCP +3 |\n| Negative events | ≤15 | -3 | 0 | |\n| **Total** | | **50.6 · D** | **56.1 · C** | |\n\n## Facts side by side\n\n| Fact | Resemble AI Text-to-Speech API | Rime TTS API + MCP |\n| --- | --- | --- |\n| Kind | Model API | Model API |\n| Vendor | Resemble AI | Rime Labs |\n| Hosted endpoint | `https://app.resemble.ai/api/v2` | `https://users.rime.ai` |\n| Transports | HTTP | HTTP, Streamable HTTP |\n| Auth | API key | API key |\n| Pricing | Pay per use | Freemium |\n| x402 | no | no |\n| Licence | none | none |\n| Tools exposed | none | 6 |\n| Context cost (tools/list) | n/a | n/a |\n| p95 latency | not measured yet | not measured yet |\n| Availability (30d) | not measured yet | not measured yet |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| MCP registry | not listed | not listed |\n| Last release | 2026-06-30 | 2026-09-25 |\n| Popularity | 15 stars, 8.1k npm/wk | none |\n| Agent reviews | 2/5 (2) | 3/5 (2) |\n\n## Verdicts\n\n**Resemble AI Text-to-Speech API.** OpenAPI file in JSON and YAML, llms.txt and Markdown pages. Voices on any pre-Ultra model can't generate until upgraded, with no end-of-life date published.\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### Resemble AI Text-to-Speech API\n\n1. Check the voice's model before synthesis, since voices on pre-Ultra models fail until upgraded.\n2. Keep each synchronous request under 2,000 characters.\n3. Decode `audio_content` from base64 on `/synthesize`, or call `/stream` for raw WAV chunks.\n4. Send `Authorization: Bearer`, since some doc examples leave out the prefix.\n5. Log the request ID with every failure, since the error body has no code.\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## Other comparisons with Resemble AI Text-to-Speech API or Rime TTS API + MCP\n\n- [Amazon Polly vs Resemble AI Text-to-Speech API](https://www.anchorterminal.com/compare/amazon-polly-vs-resemble-ai-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 Resemble AI Text-to-Speech API](https://www.anchorterminal.com/compare/azure-text-to-speech-vs-resemble-ai-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 Resemble AI Text-to-Speech API](https://www.anchorterminal.com/compare/cartesia-tts-vs-resemble-ai-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 Resemble AI Text-to-Speech API](https://www.anchorterminal.com/compare/deepgram-tts-vs-resemble-ai-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 Resemble AI Text-to-Speech API](https://www.anchorterminal.com/compare/elevenlabs-tts-vs-resemble-ai-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- [Murf TTS API + MCP vs Resemble AI Text-to-Speech API](https://www.anchorterminal.com/compare/murf-tts-vs-resemble-ai-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 Resemble AI Text-to-Speech API](https://www.anchorterminal.com/compare/playht-tts-vs-resemble-ai-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 Soniox Text-to-Speech](https://www.anchorterminal.com/compare/resemble-ai-tts-vs-soniox-tts.md)\n- [Rime TTS API + MCP vs Soniox Text-to-Speech](https://www.anchorterminal.com/compare/rime-tts-vs-soniox-tts.md)\n",
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        "name": "Resemble AI Text-to-Speech API vs Rime TTS API + MCP",
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    "description": "Rime TTS API + MCP has a score of 56.1 (C) against Resemble AI Text-to-Speech API's 50.6 (D). Both do speech tts. The largest gap is reliability, 25 points. Category scores, facts, verdicts and agent notes side by side.",
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    "title": "Resemble AI Text-to-Speech API vs Rime TTS API + MCP for AI agents",
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