{
  "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": 1091,
        "ranked": true,
        "rankOf": 1094,
        "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",
        "llmsTxt": {
          "url": "https://www.tinyspace.ai/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-15T14:17:13.185661405Z"
        },
        "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": "2026-10-15T14:17:13.185661405Z"
      }
    },
    "answer": "Structurizr + MCP scores 59.9 (C) on agent readiness against Mumble's 7.5 (F), and leads in every scored category.",
    "b": {
      "slug": "structurizr",
      "name": "Structurizr + MCP",
      "vendor": "Structurizr",
      "vendorUrl": "https://structurizr.com",
      "kind": "http-api",
      "category": "diagramming",
      "summary": "Diagram-as-code tool for software architecture using the C4 model.",
      "url": "https://www.anchorterminal.com/tools/structurizr",
      "markdownUrl": "https://www.anchorterminal.com/tools/structurizr.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/structurizr.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/structurizr.json",
      "repo": "https://github.com/structurizr/structurizr",
      "license": "Apache-2.0",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://mcp.structurizr.com/mcp",
      "packages": [],
      "auth": "mixed",
      "authNotes": "The workspace API on a Structurizr server takes a per-workspace key in the X-Authorization header, and listing all workspaces needs the admin API key. Server authentication can be switched off. The hosted MCP at mcp.structurizr.com needs no key.",
      "pricing": "freemium",
      "pricingNotes": "The DSL, local, the playground and the MCP server are free and Apache 2.0. Running the server from the prebuilt binaries needs a yearly licence priced by unique users (people or automated processes) per installation, from £300 a month for 1 to 20 users up to £2,400 a month for over 1,000, billed annually and bought by email, paid by bank transfer or PayPal invoice. 14-day trial licence from trial.structurizr.com. Building the server from source needs no licence. The cloud service took no new sign-ups after 31 December 2025 and shut down on 30 September 2026 (https://docs.structurizr.com/server/pricing).",
      "priceSummary": "$400 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "endpoints": []
      },
      "toolCount": 6,
      "popularity": {
        "githubStars": 419,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://docs.structurizr.com",
      "openapi": "https://raw.githubusercontent.com/structurizr/structurizr/refs/heads/main/structurizr-json/structurizr.yaml",
      "capabilities": [
        "diagram.create",
        "diagram.as-code",
        "diagram.edit",
        "diagram.export",
        "diagram.architecture"
      ],
      "tags": [
        "open-source",
        "self-hosted",
        "local",
        "hosted",
        "mcp",
        "diagram-as-code",
        "openapi",
        "free-tier"
      ],
      "lastRelease": "2026-09-19",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 59.9,
        "grade": "C",
        "agentReady": false,
        "rank": 568,
        "ranked": true,
        "rankOf": 1094,
        "categoryRank": 8,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 55,
          "maintenance": 68,
          "payments": 50,
          "reliability": 73,
          "schema": 61,
          "security": 43,
          "transparency": 77
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": 0,
        "verdict": "One model can generate several C4 architecture views. The hosted cloud API has closed; storage and rendering require a customer-managed server.",
        "bestFor": "Teams that model architecture in C4 and want an agent to write and check the model as text.",
        "strengths": [
          "One text model yields context, container, component, dynamic and deployment views",
          "Free hosted MCP at mcp.structurizr.com validates, parses, inspects and exports DSL with no key",
          "Apache 2.0 code, an OpenAPI 3.0 definition and dated changelogs",
          "Release 2026.09.19 on 19 September 2026, with reported issues fixed within weeks",
          "Nine months' dated notice before the cloud service shut down"
        ],
        "weaknesses": [
          "The hosted cloud API is gone. Storage and rendering need your own server",
          "Prebuilt server binaries need a paid licence counted per unique user, including API clients",
          "The MCP module is labelled experimental, with one-line tool descriptions",
          "Self-hosted MCP server tools take the workspace API key as a tool argument",
          "No security.txt or disclosure policy, and one maintainer wrote every commit since February"
        ],
        "agentNotes": [
          "Call `validate` and then `inspect` on the DSL before pushing a workspace",
          "Use the Mermaid export when the diagram has to render in Markdown without a Structurizr server",
          "Export needs a view key. Parse the DSL first to list the views",
          "Run the `structurizr/mcp` image with only the flags you need, such as `-dsl -server-read`, to keep write and delete tools out of reach",
          "The workspace API returns JSON, never images. PNG and SVG come from the separate export command"
        ],
        "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": 59.9
          }
        ],
        "editorialScores": {
          "ergonomics": 55,
          "maintenance": 68,
          "payments": 50,
          "reliability": 73,
          "schema": 61,
          "security": 43,
          "transparency": 80
        },
        "provenanceScore": 74
      },
      "connect": {
        "http": "curl \"$STRUCTURIZR_URL/api/workspace/1\" -H \"X-Authorization: $STRUCTURIZR_API_KEY\"",
        "claudeCode": "claude mcp add --transport http structurizr https://mcp.structurizr.com/mcp",
        "config": {
          "mcpServers": {
            "structurizr": {
              "url": "https://mcp.structurizr.com/mcp"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/diagram.create",
        "tool": "https://letme.dev/structurizr"
      },
      "area": "design-diagrams",
      "unitPrices": [
        {
          "item": "Server licence, 1 to 20 users",
          "unit": "month",
          "usd": 400,
          "note": "£300 a month billed annually, converted at about $1.34 a pound"
        },
        {
          "item": "Server licence, 21 to 50 users",
          "unit": "month",
          "usd": 800,
          "note": "£600 a month billed annually, converted at about $1.34 a pound"
        }
      ],
      "provenance": {
        "legalEntity": "Structurizr Limited",
        "domain": "structurizr.com",
        "domainRegistered": "2013-11-04",
        "endpointOnVendorDomain": true,
        "terms": "https://structurizr.com/terms-and-conditions",
        "privacy": "https://structurizr.com/privacy-policy",
        "statusPage": "",
        "changelog": "https://github.com/structurizr/structurizr/blob/main/changelog-application.md",
        "securityTxt": "none",
        "checked": "2026-10-01",
        "notes": [
          "Structurizr Limited is a private company registered in Jersey, Channel Islands, Jersey Financial Services Commission registry number 303857 (server EULA)",
          "The Pingdom status page linked from structurizr.com monitored the cloud service, which shut down on 30 September 2026, so it isn't listed",
          "Server terms and privacy policy for the licence also live at https://docs.structurizr.com/server/terms-and-conditions and https://docs.structurizr.com/server/privacy-policy"
        ],
        "score": 74
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/structurizr.json",
      "live": {
        "slug": "structurizr",
        "probe": {
          "target": "https://mcp.structurizr.com/mcp",
          "method": "get",
          "lastAt": "2026-10-15T14:47:38.025260999Z",
          "lastOk": true,
          "lastStatus": 405,
          "lastMs": 111,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 87,
          "p95ms24h": 159,
          "samples24h": 254,
          "samples30d": 3832,
          "days": [
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              "probes": 276,
              "ok": 276
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            {
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              "ok": 248
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            {
              "date": "2026-10-03",
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              "date": "2026-10-04",
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            {
              "date": "2026-10-05",
              "probes": 272,
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            {
              "date": "2026-10-06",
              "probes": 272,
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              "probes": 272,
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              "probes": 268,
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            {
              "date": "2026-10-09",
              "probes": 250,
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        "versions": [
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            "name": "structurizr/structurizr",
            "version": "v2026.09.19",
            "released": "2026-09-19",
            "seenAt": "2026-10-15T00:24:12.301952215Z"
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        "githubStars": 465,
        "securityTxt": {
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          "state": "none",
          "checkedAt": "2026-10-14T15:47:23.3536405Z"
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        "domain": {
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          "registered": "2013-11-04",
          "source": "https://rdap.verisign.com/com/v1/domain/structurizr.com",
          "checkedAt": "2026-10-11T13:13:29.398909242Z"
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        "pages": [
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            "fingerprint": "30400863f0dd"
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          {
            "url": "https://structurizr.com/privacy-policy",
            "kind": "privacy",
            "status": 404,
            "checkedAt": "2026-10-14T21:07:59.375932532Z",
            "changedAt": "0001-01-01T00:00:00Z"
          },
          {
            "url": "https://structurizr.com/terms-and-conditions",
            "kind": "terms",
            "status": 404,
            "checkedAt": "2026-10-14T21:08:01.540684839Z",
            "changedAt": "0001-01-01T00:00:00Z"
          }
        ],
        "updatedAt": "2026-10-15T14:47:38.025260999Z"
      }
    },
    "facts": [
      {
        "a": "Platform",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "tiny space",
        "b": "Structurizr",
        "name": "Vendor"
      },
      {
        "a": "no (local only)",
        "b": "https://mcp.structurizr.com/mcp",
        "name": "Hosted endpoint"
      },
      {
        "a": "",
        "b": "HTTP, Streamable HTTP",
        "name": "Transports"
      },
      {
        "a": "None",
        "b": "OAuth or key",
        "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": "Apache-2.0",
        "name": "Licence"
      },
      {
        "a": "none",
        "b": "6",
        "name": "Tools exposed"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "no",
        "name": "llms.txt"
      },
      {
        "a": "none",
        "b": "2026-09-19",
        "name": "Last release"
      },
      {
        "a": "no document linked",
        "b": "couldn't be read",
        "name": "Terms last updated"
      },
      {
        "a": "no date given",
        "b": "couldn't be read",
        "name": "Privacy policy last updated"
      },
      {
        "a": "",
        "b": "couldn't be read",
        "name": "Customer content may train models"
      },
      {
        "a": "",
        "b": "couldn't be read",
        "name": "Terms restrict automated access"
      },
      {
        "a": "",
        "b": "couldn't be read",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "",
        "b": "couldn't be read",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "",
        "b": "couldn't be read",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "none",
        "b": "419 stars",
        "name": "Popularity"
      },
      {
        "a": "none",
        "b": "3/5 (2)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Structurizr + MCP scores 59.9 (C) on agent readiness against Mumble's 7.5 (F), and leads in every scored category.",
        "question": "Which is better for AI agents, Mumble or Structurizr + MCP?"
      },
      {
        "answer": "No hosted endpoint is listed for Mumble. Structurizr + MCP has a hosted endpoint at https://mcp.structurizr.com/mcp.",
        "question": "Can an agent call Mumble and Structurizr + MCP without installing anything?"
      },
      {
        "answer": "No open-source release is listed for Mumble. Structurizr + MCP is open source (Apache-2.0).",
        "question": "Are Mumble and Structurizr + MCP open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": null,
        "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, 73 against 5",
          "Schema \u0026 documentation, 61 against 10",
          "Agent ergonomics, 55 against 0",
          "Security \u0026 auth, 43 against 0",
          "Payments \u0026 pricing, 50 against 30",
          "Maintenance \u0026 community, 68 against 0",
          "Transparency \u0026 trust, 77 against 13"
        ],
        "also": [
          "A hosted endpoint, with nothing to install",
          "Open source"
        ],
        "goodFor": "Teams that model architecture in C4 and want an agent to write and check the model as text.",
        "slug": "structurizr",
        "watchFor": "The hosted cloud API is gone. Storage and rendering need your own server"
      }
    ],
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      "capability": "diagram.create",
      "name": "Diagram creation"
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    "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-structurizr.json",
        "title": "Cloudviz API vs Structurizr + MCP",
        "url": "https://www.anchorterminal.com/compare/cloudviz-vs-structurizr"
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      {
        "json": "https://www.anchorterminal.com/compare/d2-vs-mumble.json",
        "title": "D2 vs Mumble",
        "url": "https://www.anchorterminal.com/compare/d2-vs-mumble"
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      {
        "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-structurizr.json",
        "title": "Diagrams.so API + MCP vs Structurizr + MCP",
        "url": "https://www.anchorterminal.com/compare/diagrams-so-vs-structurizr"
      },
      {
        "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-structurizr.json",
        "title": "draw.io + MCP vs Structurizr + MCP",
        "url": "https://www.anchorterminal.com/compare/drawio-vs-structurizr"
      },
      {
        "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-structurizr.json",
        "title": "Eraser API + MCP vs Structurizr + MCP",
        "url": "https://www.anchorterminal.com/compare/eraser-vs-structurizr"
      },
      {
        "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-structurizr.json",
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        "url": "https://www.anchorterminal.com/compare/excaliclaw-vs-structurizr"
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      {
        "json": "https://www.anchorterminal.com/compare/excalidraw-vs-mumble.json",
        "title": "Excalidraw vs Mumble",
        "url": "https://www.anchorterminal.com/compare/excalidraw-vs-mumble"
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      {
        "json": "https://www.anchorterminal.com/compare/excalidraw-vs-structurizr.json",
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        "json": "https://www.anchorterminal.com/compare/kroki-vs-mumble.json",
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      {
        "json": "https://www.anchorterminal.com/compare/lucid-vs-mumble.json",
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      {
        "json": "https://www.anchorterminal.com/compare/lucid-vs-structurizr.json",
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        "url": "https://www.anchorterminal.com/compare/lucid-vs-structurizr"
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        "json": "https://www.anchorterminal.com/compare/mermaid-chart-vs-mumble.json",
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      {
        "json": "https://www.anchorterminal.com/compare/mermaid-chart-vs-structurizr.json",
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      {
        "json": "https://www.anchorterminal.com/compare/mumble-vs-mural-mcp.json",
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      },
      {
        "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-tldraw.json",
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        "url": "https://www.anchorterminal.com/compare/mumble-vs-tldraw"
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      {
        "json": "https://www.anchorterminal.com/compare/mumble-vs-whimsical.json",
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      {
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      {
        "json": "https://www.anchorterminal.com/compare/structurizr-vs-tldraw.json",
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      {
        "json": "https://www.anchorterminal.com/compare/d2-vs-structurizr.json",
        "title": "D2 vs Structurizr + MCP",
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      {
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        "url": "https://www.anchorterminal.com/compare/kroki-vs-structurizr"
      },
      {
        "json": "https://www.anchorterminal.com/compare/plantuml-vs-structurizr.json",
        "title": "PlantUML vs Structurizr + MCP",
        "url": "https://www.anchorterminal.com/compare/plantuml-vs-structurizr"
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    ],
    "scores": [
      {
        "by": 68,
        "edge": "structurizr",
        "key": "reliability",
        "mumble": 5,
        "name": "Reliability",
        "structurizr": 73,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 51,
        "edge": "structurizr",
        "key": "schema",
        "mumble": 10,
        "name": "Schema \u0026 documentation",
        "structurizr": 61,
        "weight": 13
      },
      {
        "by": 55,
        "edge": "structurizr",
        "key": "ergonomics",
        "mumble": 0,
        "name": "Agent ergonomics",
        "structurizr": 55,
        "weight": 13
      },
      {
        "by": 43,
        "edge": "structurizr",
        "key": "security",
        "mumble": 0,
        "name": "Security \u0026 auth",
        "structurizr": 43,
        "weight": 14
      },
      {
        "by": 20,
        "edge": "structurizr",
        "key": "payments",
        "mumble": 30,
        "name": "Payments \u0026 pricing",
        "structurizr": 50,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 68,
        "edge": "structurizr",
        "key": "maintenance",
        "mumble": 0,
        "name": "Maintenance \u0026 community",
        "structurizr": 68,
        "weight": 7
      },
      {
        "by": 64,
        "edge": "structurizr",
        "key": "transparency",
        "mumble": 13,
        "name": "Transparency \u0026 trust",
        "structurizr": 77,
        "weight": 7
      }
    ],
    "summary": "Structurizr + MCP scores 59.9 (C) on agent readiness against Mumble's 7.5 (F), and leads in every scored category. 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.",
      "structurizr": "One model can generate several C4 architecture views. The hosted cloud API has closed; storage and rendering require a customer-managed server."
    }
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    "llms": "https://www.anchorterminal.com/llms.txt",
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  "markdown": "Structurizr + MCP scores 59.9 (C) on agent readiness against Mumble's 7.5 (F), and leads in every scored category. Both do diagram creation.\n\n- Mumble: grade F, 7.5/100, rank #1091 of 1094. Markdown https://www.anchorterminal.com/tools/mumble.md · JSON https://www.anchorterminal.com/api/v1/tools/mumble.json\n- Structurizr + MCP: grade C, 59.9/100, rank #568 of 1094. Markdown https://www.anchorterminal.com/tools/structurizr.md · JSON https://www.anchorterminal.com/api/v1/tools/structurizr.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\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### Structurizr + MCP (C)\n\nGood for: Teams that model architecture in C4 and want an agent to write and check the model as text.\n\nAhead on:\n- Reliability, 73 against 5\n- Schema \u0026 documentation, 61 against 10\n- Agent ergonomics, 55 against 0\n- Security \u0026 auth, 43 against 0\n- Payments \u0026 pricing, 50 against 30\n- Maintenance \u0026 community, 68 against 0\n- Transparency \u0026 trust, 77 against 13\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n- Open source\n\nWatch for: The hosted cloud API is gone. Storage and rendering need your own server\n\n\n## Score by category\n\n| Category | Weight | Mumble | Structurizr + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 5 | 73 | Structurizr + MCP +68 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 10 | 61 | Structurizr + MCP +51 |\n| Agent ergonomics | 13% (16.2 this run) | 0 | 55 | Structurizr + MCP +55 |\n| Security \u0026 auth | 14% (17.5 this run) | 0 | 43 | Structurizr + MCP +43 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 50 | Structurizr + MCP +20 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 0 | 68 | Structurizr + MCP +68 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 13 | 77 | Structurizr + MCP +64 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **7.5 · F** | **59.9 · C** | |\n\n## Facts side by side\n\n| Fact | Mumble | Structurizr + MCP |\n| --- | --- | --- |\n| Kind | Platform | HTTP API |\n| Vendor | tiny space | Structurizr |\n| Hosted endpoint | no (local only) | `https://mcp.structurizr.com/mcp` |\n| Transports |  | HTTP, Streamable HTTP |\n| Auth | None | OAuth or key |\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 | Apache-2.0 |\n| Tools exposed | none | 6 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| Last release | none | 2026-09-19 |\n| Terms last updated | no document linked | couldn't be read |\n| Privacy policy last updated | no date given | couldn't be read |\n| Customer content may train models |  | couldn't be read |\n| Terms restrict automated access |  | couldn't be read |\n| Terms restrict benchmarking |  | couldn't be read |\n| Terms or service can change without notice |  | couldn't be read |\n| Arbitration or class-action waiver |  | couldn't be read |\n| Popularity | none | 419 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**Structurizr + MCP.** One model can generate several C4 architecture views. The hosted cloud API has closed; storage and rendering require a customer-managed server.\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### Structurizr + MCP\n\n1. Call `validate` and then `inspect` on the DSL before pushing a workspace\n2. Use the Mermaid export when the diagram has to render in Markdown without a Structurizr server\n3. Export needs a view key. Parse the DSL first to list the views\n4. Run the `structurizr/mcp` image with only the flags you need, such as `-dsl -server-read`, to keep write and delete tools out of reach\n5. The workspace API returns JSON, never images. PNG and SVG come from the separate export command\n\n## Questions\n\n### Which is better for AI agents, Mumble or Structurizr + MCP?\n\nStructurizr + MCP scores 59.9 (C) on agent readiness against Mumble's 7.5 (F), and leads in every scored category.\n\n### Can an agent call Mumble and Structurizr + MCP without installing anything?\n\nNo hosted endpoint is listed for Mumble. Structurizr + MCP has a hosted endpoint at https://mcp.structurizr.com/mcp.\n\n### Are Mumble and Structurizr + MCP open source?\n\nNo open-source release is listed for Mumble. Structurizr + MCP is open source (Apache-2.0).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/mumble-vs-structurizr.json, and with the fewest tokens: https://www.anchorterminal.com/compare/mumble-vs-structurizr.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"mumble\", \"b\": \"structurizr\"}`. From a terminal: `anchor compare mumble structurizr`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/mumble.json and https://www.anchorterminal.com/api/v1/tools/structurizr.json\n\n## Other comparisons with Mumble or Structurizr + MCP\n\n- [Cloudviz API vs Mumble](https://www.anchorterminal.com/compare/cloudviz-vs-mumble.md)\n- [Cloudviz API vs Structurizr + MCP](https://www.anchorterminal.com/compare/cloudviz-vs-structurizr.md)\n- [D2 vs Mumble](https://www.anchorterminal.com/compare/d2-vs-mumble.md)\n- [Diagrams.so API + MCP vs Mumble](https://www.anchorterminal.com/compare/diagrams-so-vs-mumble.md)\n- [Diagrams.so API + MCP vs Structurizr + MCP](https://www.anchorterminal.com/compare/diagrams-so-vs-structurizr.md)\n- [draw.io + MCP vs Mumble](https://www.anchorterminal.com/compare/drawio-vs-mumble.md)\n- [draw.io + MCP vs Structurizr + MCP](https://www.anchorterminal.com/compare/drawio-vs-structurizr.md)\n- [Eraser API + MCP vs Mumble](https://www.anchorterminal.com/compare/eraser-vs-mumble.md)\n- [Eraser API + MCP vs Structurizr + MCP](https://www.anchorterminal.com/compare/eraser-vs-structurizr.md)\n- [ExcaliClaw vs Mumble](https://www.anchorterminal.com/compare/excaliclaw-vs-mumble.md)\n- [ExcaliClaw vs Structurizr + MCP](https://www.anchorterminal.com/compare/excaliclaw-vs-structurizr.md)\n- [Excalidraw vs Mumble](https://www.anchorterminal.com/compare/excalidraw-vs-mumble.md)\n- [Excalidraw vs Structurizr + MCP](https://www.anchorterminal.com/compare/excalidraw-vs-structurizr.md)\n- [Kroki vs Mumble](https://www.anchorterminal.com/compare/kroki-vs-mumble.md)\n- [Lucid API + MCP vs Mumble](https://www.anchorterminal.com/compare/lucid-vs-mumble.md)\n- [Lucid API + MCP vs Structurizr + MCP](https://www.anchorterminal.com/compare/lucid-vs-structurizr.md)\n- [Mermaid Chart MCP vs Mumble](https://www.anchorterminal.com/compare/mermaid-chart-vs-mumble.md)\n- [Mermaid Chart MCP vs Structurizr + MCP](https://www.anchorterminal.com/compare/mermaid-chart-vs-structurizr.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 tldraw SDK + MCP](https://www.anchorterminal.com/compare/mumble-vs-tldraw.md)\n- [Mumble vs Whimsical MCP](https://www.anchorterminal.com/compare/mumble-vs-whimsical.md)\n- [Mural MCP vs Structurizr + MCP](https://www.anchorterminal.com/compare/mural-mcp-vs-structurizr.md)\n- [Structurizr + MCP vs tldraw SDK + MCP](https://www.anchorterminal.com/compare/structurizr-vs-tldraw.md)\n- [Structurizr + MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/structurizr-vs-whimsical.md)\n- [D2 vs Structurizr + MCP](https://www.anchorterminal.com/compare/d2-vs-structurizr.md)\n- [Kroki vs Structurizr + MCP](https://www.anchorterminal.com/compare/kroki-vs-structurizr.md)\n- [PlantUML vs Structurizr + MCP](https://www.anchorterminal.com/compare/plantuml-vs-structurizr.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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