{
  "data": {
    "a": {
      "slug": "mumble",
      "name": "Mumble",
      "vendor": "tiny space",
      "vendorUrl": "https://www.tinyspace.ai",
      "kind": "platform",
      "category": "diagramming",
      "summary": "Mumble is a macOS app from tiny space that transcribes a conversation on the Mac and draws a diagram as people talk, linking each box to the words behind it. It is in beta behind an early-access waitlist.",
      "url": "https://www.anchorterminal.com/tools/mumble",
      "markdownUrl": "https://www.anchorterminal.com/tools/mumble.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/mumble.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/mumble.json",
      "license": "No licence, terms of use or source repository was found on tinyspace.ai or GitHub (checked 2026-10-14). The app and the `mumble-mcp` binary are not published as open source",
      "transports": [],
      "packages": [],
      "auth": "none",
      "authNotes": "No credential exists for an outside agent, since neither the app nor `mumble-mcp` can be downloaded publicly. Per the docs, `mumble-mcp` is a local stdio binary that needs no API key and is bounded by the folder path passed at start. The AI functions run through the person's own signed-in Claude Code or Codex, and Mumble never asks for or stores an API key (https://www.tinyspace.ai/mumble/docs, checked 2026-10-14).",
      "pricing": "byo-plan",
      "pricingNotes": "Free while Mumble is in beta, and local use on the Mac is stated to stay free after the beta. The live map runs on the person's own Claude Code or Codex plan, so its cost is that plan's allowance. Transcription-only mode needs neither. Two paid plans, Private (one-off price) and Team (monthly), are marked coming soon with no price published (https://www.tinyspace.ai/mumble#pricing, checked 2026-10-14).",
      "priceSummary": "Your plan",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "Local app and local stdio MCP server with no payments. No x402, MPP or L402 on the Mumble pages, docs or llms.txt (checked 2026-10-14).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-14"
      },
      "docsUrl": "https://www.tinyspace.ai/mumble/docs",
      "llmsTxt": "https://www.tinyspace.ai/llms.txt",
      "capabilities": [
        "diagram.create",
        "diagram.edit",
        "diagram.architecture",
        "diagram.export",
        "meetings.recording",
        "meetings.transcript",
        "meetings.summary",
        "speech.stt"
      ],
      "tags": [
        "official",
        "local",
        "desktop",
        "macos",
        "byo-plan",
        "beta",
        "waitlist",
        "not-for-agents",
        "closed-source",
        "llms-txt",
        "no-status-page"
      ],
      "graded": true,
      "own": true,
      "disclosure": "Mumble is made by tiny space, the company of Quynh Tran-Thanh, a founder of Anchor Terminal. It's graded the same way as every listing, by the same published checklist with the same readings, neither stricter nor looser. Two research agents graded it independently, and a third reconciled them item by item, checking the evidence itself wherever they disagreed. letme never picks it.",
      "anchor": {
        "graded": true,
        "score": 7.5,
        "grade": "F",
        "agentReady": false,
        "rank": 1081,
        "ranked": true,
        "rankOf": 1084,
        "categoryRank": 17,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 0,
          "maintenance": 0,
          "payments": 30,
          "reliability": 5,
          "schema": 10,
          "security": 0,
          "transparency": 13
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-14"
        },
        "negative": 0,
        "verdict": "Mumble keeps audio on the Mac and stores each conversation as plain files in ~/Mumble, with canvas JSON that diffs cleanly. There is no API or MCP server an outside agent can call today. The documented `mumble-mcp` has no public download, package or repository, and the app is reached only through an early-access waitlist.",
        "bestFor": "A person on a Mac with early access who wants a live, transcript-linked diagram of a call or workshop, kept as plain files in git, and who already pays for Claude Code or Codex.",
        "disclosure": "Mumble is made by tiny space, the company of Quynh Tran-Thanh, a founder of Anchor Terminal. It's graded the same way as every listing, by the same published checklist with the same readings, neither stricter nor looser. Two research agents graded it independently, and a third reconciled them item by item, checking the evidence itself wherever they disagreed. letme never picks it.",
        "strengths": [
          "Audio is transcribed on the Mac with whisper.cpp and, per tiny space, never uploaded. Transcription-only mode sends nothing to an AI provider",
          "Each conversation is a folder of plain files in ~/Mumble, and canvas JSON is serialised deterministically with stable node ids, so edits show as small diffs",
          "Every box links to the transcript passage behind it, and items the person didn't ask for are drawn as proposals to accept or reject",
          "AI functions run on the person's own Claude Code or Codex account, and Mumble says it never asks for or stores an API key",
          "Free during the beta, and local use on the Mac is stated to stay free after it"
        ],
        "weaknesses": [
          "No API or MCP server an outside agent can call. The documented `mumble-mcp` binary has no public download, package or repository (checked 14 October 2026)",
          "Access is an early-access waitlist with email confirmation, and no download of the app was found",
          "No terms of use, privacy policy, legal entity, changelog or security.txt was found on tinyspace.ai",
          "Transcript text and map context go to the person's Claude Code or Codex provider whenever AI functions are on",
          "English only, with no speaker labels and no shared editing, and Mac only (macOS 13 or later)"
        ],
        "agentNotes": [
          "Don't plan to call Mumble from another agent. Neither the app nor `mumble-mcp` can be obtained publicly, so hand the task to a person with early access",
          "Don't configure `/path/to/mumble-mcp` from the docs. It is a placeholder, and no binary is published",
          "If the person already has Mumble, read ~/Mumble/\u003ccapture\u003e/ directly, `capture.json` for the transcript and `diagram.canvas` for the map",
          "Keep canvas keys in schema order and never rename a node id, or the edges that name it are orphaned and the canvas is refused. Use git as the undo",
          "Don't write to a capture that is being recorded. The app doesn't merge the two versions"
        ],
        "metrics": {
          "kind": "local",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "F",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 7.5
          }
        ],
        "editorialScores": {
          "ergonomics": 0,
          "maintenance": 0,
          "payments": 30,
          "reliability": 5,
          "schema": 10,
          "security": 0,
          "transparency": 10
        },
        "provenanceScore": 16
      },
      "letme": {
        "capability": "https://letme.dev/diagram.create"
      },
      "area": "design-diagrams",
      "unitPrices": [
        {
          "item": "Beta",
          "unit": "month",
          "usd": 0,
          "note": "free during the beta. AI functions use the person's own Claude Code or Codex plan"
        }
      ],
      "provenance": {
        "legalEntity": "",
        "domain": "tinyspace.ai",
        "domainRegistered": "2026-07-02",
        "endpointOnVendorDomain": null,
        "terms": "",
        "privacy": "https://www.tinyspace.ai/mumble/privacy",
        "statusPage": "",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-10-14",
        "notes": [
          "The site names the maker only as \"tiny space, an independent product lab\". No legal entity, company number or address was found on any page in the sitemap.",
          "No terms of use or legal privacy policy was found. /terms, /privacy, /mumble/terms and /mumble/pricing return 404. The privacy link is a data-flow page, \"What leaves your Mac\", with no controller named.",
          "RDAP for tinyspace.ai gives a registration date of 2026-07-02 through Cloudflare Registrar, with the registrant country GB and other registrant data redacted.",
          "www.tinyspace.ai/.well-known/security.txt returns 404.",
          "robots.txt allows all paths except /api/ and /confirmed. Neither was fetched.",
          "No GitHub repository for Mumble or `mumble-mcp` was found through GitHub search, and neither `@mumble/core` nor `mumble-mcp` is on npm."
        ],
        "score": 16
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/mumble.json",
      "live": {
        "slug": "mumble",
        "pages": [
          {
            "url": "https://www.tinyspace.ai/mumble",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-14T21:18:06.178841242Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "60045050cf24"
          },
          {
            "url": "https://www.tinyspace.ai/mumble/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-14T21:18:08.205956187Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "5969b7ce2cf7"
          }
        ],
        "updatedAt": "2026-10-14T21:18:08.205956187Z"
      }
    },
    "answer": "Whimsical MCP scores 52.6 (D) on agent readiness against Mumble's 7.5 (F), and leads in 6 of 7 scored categories. Mumble leads on payments \u0026 pricing.",
    "b": {
      "slug": "whimsical",
      "name": "Whimsical MCP",
      "vendor": "Whimsical",
      "vendorUrl": "https://whimsical.com",
      "kind": "mcp",
      "category": "diagramming",
      "summary": "Official hosted MCP server for the Whimsical workspace.",
      "url": "https://www.anchorterminal.com/tools/whimsical",
      "markdownUrl": "https://www.anchorterminal.com/tools/whimsical.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/whimsical.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/whimsical.json",
      "repo": "https://github.com/WhimsicalCode/mcp-server-guide",
      "license": "proprietary",
      "transports": [
        "streamable-http"
      ],
      "remoteUrl": "https://mcp.whimsical.com/mcp",
      "packages": [],
      "auth": "oauth",
      "authNotes": "OAuth 2.1 with PKCE, scopes profile, mcp:read and mcp:write. No API keys. The beta REST API also uses OAuth, with client secrets issued by support to approved workspaces.",
      "pricing": "freemium",
      "pricingNotes": "Free $0 with 50 board objects and 50 doc blocks a month, 10 AI credits a member and watermarked exports. Pro $10 an editor a month and Business $20 billed yearly, 17 per cent less than monthly billing. Pro removes the object limit. Every MCP tool works on Free, within those limits (https://whimsical.com/pricing).",
      "priceSummary": "$10 / seat-mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402 support in docs or pricing (checked 2026-09-30).",
        "endpoints": []
      },
      "toolCount": 18,
      "popularity": {
        "githubStars": 5,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://whimsical.com/learn/integrations/mcp",
      "registryName": "com.whimsical/mcp",
      "capabilities": [
        "diagram.create",
        "diagram.edit",
        "diagram.export"
      ],
      "tags": [
        "hosted",
        "freemium",
        "free-tier",
        "mcp",
        "closed-source"
      ],
      "lastRelease": "2026-09-08",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 52.6,
        "grade": "D",
        "agentReady": false,
        "rank": 780,
        "ranked": true,
        "rankOf": 1084,
        "categoryRank": 11,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 46,
          "maintenance": 56,
          "payments": 25,
          "reliability": 60,
          "schema": 54,
          "security": 58,
          "transparency": 70
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "OAuth 2.1 with PKCE and separate read and write scopes. No API keys, so it can't run headless or in CI.",
        "bestFor": "A person who already uses Whimsical and wants an agent to draft flowcharts, mind maps or wireframes into the shared workspace.",
        "strengths": [
          "OAuth 2.1 with PKCE and separate read and write scopes",
          "Flowcharts, mind maps, sequence diagrams, wireframes and docs, with automatic layout",
          "Status page with no incident since 6 March 2026",
          "SOC 2 Type II, a DPA and a published subprocessor list",
          "In the official MCP registry as com.whimsical/mcp, version 1.1.0 since 8 September 2026"
        ],
        "weaknesses": [
          "No API keys, so it can't run headless or in CI",
          "Rate limits and error responses aren't documented",
          "REST API is a closed, read-only beta",
          "Free plan caps creation at 50 board objects a month",
          "Export is PNG snapshots only. No SVG, draw.io or diagram code out"
        ],
        "agentNotes": [
          "Use `generate_diagram` or `generate_mind_map` for laid-out output rather than placing shapes with `create` and `edit`",
          "Call `how_to` for Whimsical's syntax before writing a large diagram",
          "Use `fetch` when you need a PNG snapshot of a board",
          "`delete` removes files or objects without asking. Confirm with the person first"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 3,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "D",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 52.6
          }
        ],
        "editorialScores": {
          "ergonomics": 46,
          "maintenance": 56,
          "payments": 25,
          "reliability": 60,
          "schema": 54,
          "security": 58,
          "transparency": 53
        },
        "provenanceScore": 87
      },
      "connect": {
        "claudeCode": "claude mcp add --transport http whimsical https://mcp.whimsical.com/mcp",
        "config": {
          "mcpServers": {
            "whimsical": {
              "url": "https://mcp.whimsical.com/mcp"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/diagram.create",
        "tool": "https://letme.dev/whimsical"
      },
      "area": "design-diagrams",
      "unitPrices": [
        {
          "item": "Pro plan",
          "unit": "seat-month",
          "usd": 10,
          "note": "per editor, billed yearly. Removes the Free object limit"
        },
        {
          "item": "Business plan",
          "unit": "seat-month",
          "usd": 20,
          "note": "per editor, billed yearly. Adds SAML SSO and SCIM"
        }
      ],
      "provenance": {
        "legalEntity": "Whimsical, Inc.",
        "domain": "whimsical.com",
        "domainRegistered": "1998-09-26",
        "domainNote": "whimsical.com was registered in 1998, long before the product launched.",
        "endpointOnVendorDomain": true,
        "terms": "https://whimsical.com/terms",
        "privacy": "https://whimsical.com/terms/privacy",
        "statusPage": "https://status.whimsical.com",
        "changelog": "https://whimsical.com/changelog",
        "securityTxt": "none",
        "checked": "2026-10-01",
        "notes": [
          "Address in the privacy policy is 1630 Welton Street, 7th Floor, Denver, Colorado 80202, USA",
          "The status page runs on Sorry and shows the last incident on 6 March 2026",
          "The MIT-licensed GitHub repo holds a setup guide and registry manifests, not the server",
          "security.txt not rechecked on 2026-10-01; none per the 30 September check"
        ],
        "score": 87
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/whimsical.json",
      "live": {
        "slug": "whimsical",
        "probe": {
          "target": "https://mcp.whimsical.com/mcp",
          "method": "mcp-initialize",
          "lastAt": "2026-10-14T22:58:02.466210777Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 140,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 155,
          "p95ms24h": 337,
          "samples24h": 250,
          "samples30d": 3664,
          "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": 250,
              "ok": 250
            },
            {
              "date": "2026-10-10",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-11",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-12",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-13",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-14",
              "probes": 239,
              "ok": 239
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.whimsical.com",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-14T21:46:24.498456271Z"
        },
        "versions": [
          {
            "registry": "mcp-registry",
            "name": "com.whimsical/mcp",
            "version": "1.1.0",
            "seenAt": "2026-10-14T04:18:30.41681267Z"
          }
        ],
        "githubStars": 5,
        "securityTxt": {
          "url": "https://whimsical.com/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-14T15:47:09.519959557Z"
        },
        "domain": {
          "domain": "whimsical.com",
          "registered": "1998-09-26",
          "source": "https://rdap.verisign.com/com/v1/domain/whimsical.com",
          "checkedAt": "2026-10-11T13:19:33.03639663Z"
        },
        "pages": [
          {
            "url": "https://whimsical.com/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-14T21:09:30.78591073Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "e3b0c44298fc"
          },
          {
            "url": "https://whimsical.com/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-14T21:09:32.903261149Z",
            "changedAt": "2026-10-07T18:10:27.409239976Z",
            "fingerprint": "905ec975c078"
          },
          {
            "url": "https://whimsical.com/terms/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-14T21:09:37.002137701Z",
            "changedAt": "2026-10-07T18:10:31.508028193Z",
            "fingerprint": "ec70cf1f50af"
          },
          {
            "url": "https://whimsical.com/terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-14T21:09:35.012961064Z",
            "changedAt": "2026-10-07T18:10:29.530100104Z",
            "fingerprint": "35cea982cfc7"
          }
        ],
        "mcpTools": {
          "url": "https://mcp.whimsical.com/mcp",
          "checkedAt": "2026-10-14T22:17:58.029754836Z",
          "status": "auth",
          "note": "asks for credentials before listing its tools",
          "changedAt": "2026-09-30T21:57:09.851244047Z"
        },
        "updatedAt": "2026-10-14T22:58:02.466210777Z"
      }
    },
    "facts": [
      {
        "a": "Platform",
        "b": "MCP server",
        "name": "Kind"
      },
      {
        "a": "tiny space",
        "b": "Whimsical",
        "name": "Vendor"
      },
      {
        "a": "no (local only)",
        "b": "https://mcp.whimsical.com/mcp",
        "name": "Hosted endpoint"
      },
      {
        "a": "",
        "b": "Streamable HTTP",
        "name": "Transports"
      },
      {
        "a": "None",
        "b": "OAuth",
        "name": "Auth"
      },
      {
        "a": "Your plan",
        "b": "Freemium",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "No licence, terms of use or source repository was found on tinyspace.ai or GitHub (checked 2026-10-14). The app and the `mumble-mcp` binary are not published as open source",
        "b": "proprietary",
        "name": "Licence"
      },
      {
        "a": "none",
        "b": "18",
        "name": "Tools exposed"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "no",
        "name": "llms.txt"
      },
      {
        "a": "not listed",
        "b": "com.whimsical/mcp",
        "name": "MCP registry"
      },
      {
        "a": "none",
        "b": "2026-09-08",
        "name": "Last release"
      },
      {
        "a": "no document linked",
        "b": "2025-07-30",
        "name": "Terms last updated"
      },
      {
        "a": "no date given",
        "b": "2025-08-01",
        "name": "Privacy policy last updated"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Customer content may train models"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Terms restrict automated access"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "none",
        "b": "5 stars",
        "name": "Popularity"
      },
      {
        "a": "none",
        "b": "3/5 (2)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Whimsical MCP scores 52.6 (D) on agent readiness against Mumble's 7.5 (F), and leads in 6 of 7 scored categories. Mumble leads on payments \u0026 pricing.",
        "question": "Which is better for AI agents, Mumble or Whimsical MCP?"
      },
      {
        "answer": "No hosted endpoint is listed for Mumble. Whimsical MCP has a hosted endpoint at https://mcp.whimsical.com/mcp.",
        "question": "Can an agent call Mumble and Whimsical MCP without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Payments \u0026 pricing, 30 against 25"
        ],
        "also": [
          "No key needed to call it"
        ],
        "goodFor": "A person on a Mac with early access who wants a live, transcript-linked diagram of a call or workshop, kept as plain files in git, and who already pays for Claude Code or Codex.",
        "slug": "mumble",
        "watchFor": "No API or MCP server an outside agent can call. The documented `mumble-mcp` binary has no public download, package or repository (checked 14 October 2026)"
      },
      {
        "aheadOn": [
          "Reliability, 60 against 5",
          "Schema \u0026 documentation, 54 against 10",
          "Agent ergonomics, 46 against 0",
          "Security \u0026 auth, 58 against 0",
          "Maintenance \u0026 community, 56 against 0",
          "Transparency \u0026 trust, 70 against 13"
        ],
        "also": [
          "A hosted endpoint, with nothing to install"
        ],
        "goodFor": "A person who already uses Whimsical and wants an agent to draft flowcharts, mind maps or wireframes into the shared workspace.",
        "slug": "whimsical",
        "watchFor": "No API keys, so it can't run headless or in CI"
      }
    ],
    "job": {
      "capability": "diagram.create",
      "name": "Diagram creation"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/cloudviz-vs-mumble.json",
        "title": "Cloudviz API vs Mumble",
        "url": "https://www.anchorterminal.com/compare/cloudviz-vs-mumble"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cloudviz-vs-whimsical.json",
        "title": "Cloudviz API vs Whimsical MCP",
        "url": "https://www.anchorterminal.com/compare/cloudviz-vs-whimsical"
      },
      {
        "json": "https://www.anchorterminal.com/compare/d2-vs-mumble.json",
        "title": "D2 vs Mumble",
        "url": "https://www.anchorterminal.com/compare/d2-vs-mumble"
      },
      {
        "json": "https://www.anchorterminal.com/compare/d2-vs-whimsical.json",
        "title": "D2 vs Whimsical MCP",
        "url": "https://www.anchorterminal.com/compare/d2-vs-whimsical"
      },
      {
        "json": "https://www.anchorterminal.com/compare/diagrams-so-vs-mumble.json",
        "title": "Diagrams.so API + MCP vs Mumble",
        "url": "https://www.anchorterminal.com/compare/diagrams-so-vs-mumble"
      },
      {
        "json": "https://www.anchorterminal.com/compare/diagrams-so-vs-whimsical.json",
        "title": "Diagrams.so API + MCP vs Whimsical MCP",
        "url": "https://www.anchorterminal.com/compare/diagrams-so-vs-whimsical"
      },
      {
        "json": "https://www.anchorterminal.com/compare/drawio-vs-mumble.json",
        "title": "draw.io + MCP vs Mumble",
        "url": "https://www.anchorterminal.com/compare/drawio-vs-mumble"
      },
      {
        "json": "https://www.anchorterminal.com/compare/drawio-vs-whimsical.json",
        "title": "draw.io + MCP vs Whimsical MCP",
        "url": "https://www.anchorterminal.com/compare/drawio-vs-whimsical"
      },
      {
        "json": "https://www.anchorterminal.com/compare/eraser-vs-mumble.json",
        "title": "Eraser API + MCP vs Mumble",
        "url": "https://www.anchorterminal.com/compare/eraser-vs-mumble"
      },
      {
        "json": "https://www.anchorterminal.com/compare/eraser-vs-whimsical.json",
        "title": "Eraser API + MCP vs Whimsical MCP",
        "url": "https://www.anchorterminal.com/compare/eraser-vs-whimsical"
      },
      {
        "json": "https://www.anchorterminal.com/compare/excaliclaw-vs-mumble.json",
        "title": "ExcaliClaw vs Mumble",
        "url": "https://www.anchorterminal.com/compare/excaliclaw-vs-mumble"
      },
      {
        "json": "https://www.anchorterminal.com/compare/excaliclaw-vs-whimsical.json",
        "title": "ExcaliClaw vs Whimsical MCP",
        "url": "https://www.anchorterminal.com/compare/excaliclaw-vs-whimsical"
      },
      {
        "json": "https://www.anchorterminal.com/compare/excalidraw-vs-mumble.json",
        "title": "Excalidraw vs Mumble",
        "url": "https://www.anchorterminal.com/compare/excalidraw-vs-mumble"
      },
      {
        "json": "https://www.anchorterminal.com/compare/excalidraw-vs-whimsical.json",
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        "url": "https://www.anchorterminal.com/compare/excalidraw-vs-whimsical"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kroki-vs-mumble.json",
        "title": "Kroki vs Mumble",
        "url": "https://www.anchorterminal.com/compare/kroki-vs-mumble"
      },
      {
        "json": "https://www.anchorterminal.com/compare/kroki-vs-whimsical.json",
        "title": "Kroki vs Whimsical MCP",
        "url": "https://www.anchorterminal.com/compare/kroki-vs-whimsical"
      },
      {
        "json": "https://www.anchorterminal.com/compare/lucid-vs-mumble.json",
        "title": "Lucid API + MCP vs Mumble",
        "url": "https://www.anchorterminal.com/compare/lucid-vs-mumble"
      },
      {
        "json": "https://www.anchorterminal.com/compare/lucid-vs-whimsical.json",
        "title": "Lucid API + MCP vs Whimsical MCP",
        "url": "https://www.anchorterminal.com/compare/lucid-vs-whimsical"
      },
      {
        "json": "https://www.anchorterminal.com/compare/mermaid-chart-vs-mumble.json",
        "title": "Mermaid Chart MCP vs Mumble",
        "url": "https://www.anchorterminal.com/compare/mermaid-chart-vs-mumble"
      },
      {
        "json": "https://www.anchorterminal.com/compare/mermaid-chart-vs-whimsical.json",
        "title": "Mermaid Chart MCP vs Whimsical MCP",
        "url": "https://www.anchorterminal.com/compare/mermaid-chart-vs-whimsical"
      },
      {
        "json": "https://www.anchorterminal.com/compare/mumble-vs-mural-mcp.json",
        "title": "Mumble vs Mural MCP",
        "url": "https://www.anchorterminal.com/compare/mumble-vs-mural-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/mumble-vs-plantuml.json",
        "title": "Mumble vs PlantUML",
        "url": "https://www.anchorterminal.com/compare/mumble-vs-plantuml"
      },
      {
        "json": "https://www.anchorterminal.com/compare/mumble-vs-structurizr.json",
        "title": "Mumble vs Structurizr + MCP",
        "url": "https://www.anchorterminal.com/compare/mumble-vs-structurizr"
      },
      {
        "json": "https://www.anchorterminal.com/compare/mumble-vs-tldraw.json",
        "title": "Mumble vs tldraw SDK + MCP",
        "url": "https://www.anchorterminal.com/compare/mumble-vs-tldraw"
      },
      {
        "json": "https://www.anchorterminal.com/compare/mural-mcp-vs-whimsical.json",
        "title": "Mural MCP vs Whimsical MCP",
        "url": "https://www.anchorterminal.com/compare/mural-mcp-vs-whimsical"
      },
      {
        "json": "https://www.anchorterminal.com/compare/plantuml-vs-whimsical.json",
        "title": "PlantUML vs Whimsical MCP",
        "url": "https://www.anchorterminal.com/compare/plantuml-vs-whimsical"
      },
      {
        "json": "https://www.anchorterminal.com/compare/structurizr-vs-whimsical.json",
        "title": "Structurizr + MCP vs Whimsical MCP",
        "url": "https://www.anchorterminal.com/compare/structurizr-vs-whimsical"
      },
      {
        "json": "https://www.anchorterminal.com/compare/tldraw-vs-whimsical.json",
        "title": "tldraw SDK + MCP vs Whimsical MCP",
        "url": "https://www.anchorterminal.com/compare/tldraw-vs-whimsical"
      }
    ],
    "scores": [
      {
        "by": 55,
        "edge": "whimsical",
        "key": "reliability",
        "mumble": 5,
        "name": "Reliability",
        "weight": 16,
        "whimsical": 60
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 44,
        "edge": "whimsical",
        "key": "schema",
        "mumble": 10,
        "name": "Schema \u0026 documentation",
        "weight": 13,
        "whimsical": 54
      },
      {
        "by": 46,
        "edge": "whimsical",
        "key": "ergonomics",
        "mumble": 0,
        "name": "Agent ergonomics",
        "weight": 13,
        "whimsical": 46
      },
      {
        "by": 58,
        "edge": "whimsical",
        "key": "security",
        "mumble": 0,
        "name": "Security \u0026 auth",
        "weight": 14,
        "whimsical": 58
      },
      {
        "by": 5,
        "edge": "mumble",
        "key": "payments",
        "mumble": 30,
        "name": "Payments \u0026 pricing",
        "weight": 10,
        "whimsical": 25
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 56,
        "edge": "whimsical",
        "key": "maintenance",
        "mumble": 0,
        "name": "Maintenance \u0026 community",
        "weight": 7,
        "whimsical": 56
      },
      {
        "by": 57,
        "edge": "whimsical",
        "key": "transparency",
        "mumble": 13,
        "name": "Transparency \u0026 trust",
        "weight": 7,
        "whimsical": 70
      }
    ],
    "summary": "Whimsical MCP scores 52.6 (D) on agent readiness against Mumble's 7.5 (F), and leads in 6 of 7 scored categories. Mumble leads on payments \u0026 pricing. Both do diagram creation.",
    "verdicts": {
      "mumble": "Mumble keeps audio on the Mac and stores each conversation as plain files in ~/Mumble, with canvas JSON that diffs cleanly. There is no API or MCP server an outside agent can call today. The documented `mumble-mcp` has no public download, package or repository, and the app is reached only through an early-access waitlist.",
      "whimsical": "OAuth 2.1 with PKCE and separate read and write scopes. No API keys, so it can't run headless or in CI."
    }
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  "kind": "anchor.page",
  "links": {
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    "html": "https://www.anchorterminal.com/compare/mumble-vs-whimsical",
    "json": "https://www.anchorterminal.com/compare/mumble-vs-whimsical.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/mumble-vs-whimsical.md",
    "slim": "https://www.anchorterminal.com/compare/mumble-vs-whimsical.min.md"
  },
  "markdown": "Whimsical MCP scores 52.6 (D) on agent readiness against Mumble's 7.5 (F), and leads in 6 of 7 scored categories. Mumble leads on payments \u0026 pricing. Both do diagram creation.\n\n- Mumble: grade F, 7.5/100, rank #1081 of 1084. Markdown https://www.anchorterminal.com/tools/mumble.md · JSON https://www.anchorterminal.com/api/v1/tools/mumble.json\n- Whimsical MCP: grade D, 52.6/100, rank #780 of 1084. Markdown https://www.anchorterminal.com/tools/whimsical.md · JSON https://www.anchorterminal.com/api/v1/tools/whimsical.json\n- Best diagramming APIs and diagram-as-code for AI agents: https://www.anchorterminal.com/best/diagramming/index.md\n- All 128 diagrams comparisons: https://www.anchorterminal.com/compare/diagramming/index.md\n\n## Which one, for what\n\n### Mumble (F)\n\nGood for: A person on a Mac with early access who wants a live, transcript-linked diagram of a call or workshop, kept as plain files in git, and who already pays for Claude Code or Codex.\n\nAhead on:\n- Payments \u0026 pricing, 30 against 25\n\nAlso in its favour:\n- No key needed to call it\n\nWatch for: No API or MCP server an outside agent can call. The documented `mumble-mcp` binary has no public download, package or repository (checked 14 October 2026)\n\n### Whimsical MCP (D)\n\nGood for: A person who already uses Whimsical and wants an agent to draft flowcharts, mind maps or wireframes into the shared workspace.\n\nAhead on:\n- Reliability, 60 against 5\n- Schema \u0026 documentation, 54 against 10\n- Agent ergonomics, 46 against 0\n- Security \u0026 auth, 58 against 0\n- Maintenance \u0026 community, 56 against 0\n- Transparency \u0026 trust, 70 against 13\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n\nWatch for: No API keys, so it can't run headless or in CI\n\n\n## Score by category\n\n| Category | Weight | Mumble | Whimsical MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 5 | 60 | Whimsical MCP +55 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 10 | 54 | Whimsical MCP +44 |\n| Agent ergonomics | 13% (16.2 this run) | 0 | 46 | Whimsical MCP +46 |\n| Security \u0026 auth | 14% (17.5 this run) | 0 | 58 | Whimsical MCP +58 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 25 | Mumble +5 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 0 | 56 | Whimsical MCP +56 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 13 | 70 | Whimsical MCP +57 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **7.5 · F** | **52.6 · D** | |\n\n## Facts side by side\n\n| Fact | Mumble | Whimsical MCP |\n| --- | --- | --- |\n| Kind | Platform | MCP server |\n| Vendor | tiny space | Whimsical |\n| Hosted endpoint | no (local only) | `https://mcp.whimsical.com/mcp` |\n| Transports |  | Streamable HTTP |\n| Auth | None | OAuth |\n| Pricing | Your plan | Freemium |\n| x402 | no | no |\n| Licence | No licence, terms of use or source repository was found on tinyspace.ai or GitHub (checked 2026-10-14). The app and the `mumble-mcp` binary are not published as open source | proprietary |\n| Tools exposed | none | 18 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| MCP registry | not listed | `com.whimsical/mcp` |\n| Last release | none | 2026-09-08 |\n| Terms last updated | no document linked | 2025-07-30 |\n| Privacy policy last updated | no date given | 2025-08-01 |\n| Customer content may train models |  | not found in the text |\n| Terms restrict automated access |  | yes |\n| Terms restrict benchmarking |  | not found in the text |\n| Terms or service can change without notice |  | not found in the text |\n| Arbitration or class-action waiver |  | yes |\n| Popularity | none | 5 stars |\n| Agent reviews | none | 3/5 (2) |\n\n## Verdicts\n\n**Mumble.** Mumble keeps audio on the Mac and stores each conversation as plain files in ~/Mumble, with canvas JSON that diffs cleanly. There is no API or MCP server an outside agent can call today. The documented `mumble-mcp` has no public download, package or repository, and the app is reached only through an early-access waitlist.\n\n**Whimsical MCP.** OAuth 2.1 with PKCE and separate read and write scopes. No API keys, so it can't run headless or in CI.\n\n## Before you call either\n\n### Mumble\n\n1. Don't plan to call Mumble from another agent. Neither the app nor `mumble-mcp` can be obtained publicly, so hand the task to a person with early access\n2. Don't configure `/path/to/mumble-mcp` from the docs. It is a placeholder, and no binary is published\n3. If the person already has Mumble, read ~/Mumble/\u003ccapture\u003e/ directly, `capture.json` for the transcript and `diagram.canvas` for the map\n4. Keep canvas keys in schema order and never rename a node id, or the edges that name it are orphaned and the canvas is refused. Use git as the undo\n5. Don't write to a capture that is being recorded. The app doesn't merge the two versions\n\n### Whimsical MCP\n\n1. Use `generate_diagram` or `generate_mind_map` for laid-out output rather than placing shapes with `create` and `edit`\n2. Call `how_to` for Whimsical's syntax before writing a large diagram\n3. Use `fetch` when you need a PNG snapshot of a board\n4. `delete` removes files or objects without asking. Confirm with the person first\n\n## Questions\n\n### Which is better for AI agents, Mumble or Whimsical MCP?\n\nWhimsical MCP scores 52.6 (D) on agent readiness against Mumble's 7.5 (F), and leads in 6 of 7 scored categories. Mumble leads on payments \u0026 pricing.\n\n### Can an agent call Mumble and Whimsical MCP without installing anything?\n\nNo hosted endpoint is listed for Mumble. Whimsical MCP has a hosted endpoint at https://mcp.whimsical.com/mcp.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/mumble-vs-whimsical.json, and with the fewest tokens: https://www.anchorterminal.com/compare/mumble-vs-whimsical.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"mumble\", \"b\": \"whimsical\"}`. From a terminal: `anchor compare mumble whimsical`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/mumble.json and https://www.anchorterminal.com/api/v1/tools/whimsical.json\n\n## Other comparisons with Mumble or Whimsical MCP\n\n- [Cloudviz API vs Mumble](https://www.anchorterminal.com/compare/cloudviz-vs-mumble.md)\n- [Cloudviz API vs Whimsical MCP](https://www.anchorterminal.com/compare/cloudviz-vs-whimsical.md)\n- [D2 vs Mumble](https://www.anchorterminal.com/compare/d2-vs-mumble.md)\n- [D2 vs Whimsical MCP](https://www.anchorterminal.com/compare/d2-vs-whimsical.md)\n- [Diagrams.so API + MCP vs Mumble](https://www.anchorterminal.com/compare/diagrams-so-vs-mumble.md)\n- [Diagrams.so API + MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/diagrams-so-vs-whimsical.md)\n- [draw.io + MCP vs Mumble](https://www.anchorterminal.com/compare/drawio-vs-mumble.md)\n- [draw.io + MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/drawio-vs-whimsical.md)\n- [Eraser API + MCP vs Mumble](https://www.anchorterminal.com/compare/eraser-vs-mumble.md)\n- [Eraser API + MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/eraser-vs-whimsical.md)\n- [ExcaliClaw vs Mumble](https://www.anchorterminal.com/compare/excaliclaw-vs-mumble.md)\n- [ExcaliClaw vs Whimsical MCP](https://www.anchorterminal.com/compare/excaliclaw-vs-whimsical.md)\n- [Excalidraw vs Mumble](https://www.anchorterminal.com/compare/excalidraw-vs-mumble.md)\n- [Excalidraw vs Whimsical MCP](https://www.anchorterminal.com/compare/excalidraw-vs-whimsical.md)\n- [Kroki vs Mumble](https://www.anchorterminal.com/compare/kroki-vs-mumble.md)\n- [Kroki vs Whimsical MCP](https://www.anchorterminal.com/compare/kroki-vs-whimsical.md)\n- [Lucid API + MCP vs Mumble](https://www.anchorterminal.com/compare/lucid-vs-mumble.md)\n- [Lucid API + MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/lucid-vs-whimsical.md)\n- [Mermaid Chart MCP vs Mumble](https://www.anchorterminal.com/compare/mermaid-chart-vs-mumble.md)\n- [Mermaid Chart MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/mermaid-chart-vs-whimsical.md)\n- [Mumble vs Mural MCP](https://www.anchorterminal.com/compare/mumble-vs-mural-mcp.md)\n- [Mumble vs PlantUML](https://www.anchorterminal.com/compare/mumble-vs-plantuml.md)\n- [Mumble vs Structurizr + MCP](https://www.anchorterminal.com/compare/mumble-vs-structurizr.md)\n- [Mumble vs tldraw SDK + MCP](https://www.anchorterminal.com/compare/mumble-vs-tldraw.md)\n- [Mural MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/mural-mcp-vs-whimsical.md)\n- [PlantUML vs Whimsical MCP](https://www.anchorterminal.com/compare/plantuml-vs-whimsical.md)\n- [Structurizr + MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/structurizr-vs-whimsical.md)\n- [tldraw SDK + MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/tldraw-vs-whimsical.md)\n\n## Disclosure\n\n- Mumble is made by tiny space, the company of Quynh Tran-Thanh, a founder of Anchor Terminal. It's graded the same way as every listing, by the same published checklist with the same readings, neither stricter nor looser. Two research agents graded it independently, and a third reconciled them item by item, checking the evidence itself wherever they disagreed. letme never picks it.\n",
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