{ "data": { "a": { "slug": "cloudviz", "name": "Cloudviz API", "vendor": "Cloudviz", "vendorUrl": "https://cloudviz.io", "kind": "http-api", "category": "diagramming", "summary": "Generates AWS architecture diagrams from a live account.", "url": "https://www.anchorterminal.com/tools/cloudviz", "markdownUrl": "https://www.anchorterminal.com/tools/cloudviz.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/cloudviz.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/cloudviz.json", "transports": [ "http" ], "remoteUrl": "https://api.cloudviz.io", "packages": [], "auth": "api-key", "authNotes": "API key in the x-api-key header, created in the app under Manage API Keys. Each key is read or read and write, and can be changed at any time. Cloudviz reads your AWS account through a cross-account read-only IAM role.", "pricing": "paid", "pricingNotes": "10-day free trial. Base $9.95 per user a month with 3 AWS accounts and no API. Team $49 a month for 10 users with unlimited AWS accounts, API access, SSO and 20 automated diagrams. Enterprise (self-hosted, unlimited users) by quote. Annual billing is up to 30 per cent off, and AWS Marketplace billing is available (https://cloudviz.io/pricing).", "priceSummary": "$9.95 / seat-mo", "where": "hosted", "x402": { "level": "no", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://cloudviz.io/developers", "openapi": "https://cloudviz.io/assets/developers/openapi.json", "capabilities": [ "diagram.create", "diagram.export", "diagram.architecture" ], "tags": [ "hosted", "closed-source", "openapi", "async-jobs", "enterprise" ], "graded": true, "anchor": { "graded": true, "score": 37.9, "grade": "F", "agentReady": false, "rank": 432, "ranked": true, "rankOf": 452, "categoryRank": 8, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 50, "maintenance": 5, "payments": 20, "reliability": 20, "schema": 58, "security": 53, "transparency": 47 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Diagrams come from the live AWS account through a read-only cross-account role with a per-customer external ID. AWS only, and API access starts at the $49 a month Team plan.", "strengths": [ "Diagrams come from the live AWS account through a read-only cross-account role with a per-customer external ID", "One GET returns svg, png, pdf, drawio, jsonDiagram or jsonSnapshot", "Public OpenAPI 3.0.3 file with 7 operations and documented status codes", "API keys can be read-only" ], "weaknesses": [ "AWS only, and API access starts at the $49 a month Team plan", "Throttling on rate, burst and daily count with no published numbers", "No status page, changelog, SLA or security.txt", "No dated product update found since March 2025" ], "agentNotes": [ "Call `GET /aws/accounts/` first to get the Cloudviz account ID, then request `/aws/accounts/{account-id}/{region}/{format}`", "On a 202, wait and repeat the same GET until the diagram is ready", "Ask for `jsonSnapshot` or `jsonDiagram` (there is no plain `json` format) when the agent has to reason over resources", "Use a read-only key unless the agent has to add, change or delete AWS accounts" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 2.5, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "F", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 37.9 } ], "editorialScores": { "ergonomics": 50, "maintenance": 5, "payments": 20, "reliability": 20, "schema": 58, "security": 53, "transparency": 38 }, "provenanceScore": 55 }, "connect": { "http": "curl https://api.cloudviz.io/aws/accounts/ -H \"x-api-key: $CLOUDVIZ_API_KEY\"" }, "letme": { "capability": "https://letme.dev/diagram.create", "tool": "https://letme.dev/cloudviz" }, "area": "design-diagrams", "unitPrices": [ { "item": "Base plan", "unit": "seat-month", "usd": 9.95, "note": "billed monthly, no API access" }, { "item": "Team plan", "unit": "month", "usd": 49, "note": "10 users, first plan with API access, billed monthly" } ], "provenance": { "legalEntity": "SIA Cloudviz Solutions", "domain": "cloudviz.io", "domainRegistered": "", "endpointOnVendorDomain": true, "terms": "https://cloudviz.io/terms", "privacy": "https://cloudviz.io/privacy", "statusPage": "", "changelog": "", "securityTxt": "none", "checked": "2026-10-01", "notes": [ "SIA is a Latvian limited company, registration number 44103120286, legal address Rīgas iela 22A-53, Limbaži, LV-4001 (firmas.lv)", "Terms are governed by Latvian law and were last updated on 26 March 2019", "No RDAP service answers for .io, so the registration date is unknown", "/.well-known/security.txt returns 404. The security page names security@cloudviz.io" ], "score": 55 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/cloudviz.json", "live": { "slug": "cloudviz", "probe": { "target": "https://api.cloudviz.io", "method": "get", "lastAt": "2026-10-05T01:43:35.589860561Z", "lastOk": true, "lastStatus": 403, "lastMs": 73, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 54, "p95ms24h": 81, "samples24h": 272, "samples30d": 1122, "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": 20, "ok": 20 } ] }, "securityTxt": { "url": "https://cloudviz.io/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:15:48.135776442Z" }, "domain": { "domain": "cloudviz.io", "checkedAt": "2026-10-04T13:03:55.142223054Z" }, "pages": [ { "url": "https://cloudviz.io/pricing", "kind": "pricing", "status": 304, "checkedAt": "2026-10-04T15:41:56.660296464Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "65ac1cddb5ad" }, { "url": "https://cloudviz.io/privacy", "kind": "privacy", "status": 304, "checkedAt": "2026-10-04T15:41:58.748228444Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "b4c608710d46" }, { "url": "https://cloudviz.io/terms", "kind": "terms", "status": 304, "checkedAt": "2026-10-04T15:42:00.745778047Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "f319fbc0e66d" } ], "updatedAt": "2026-10-05T01:43:35.589860561Z" } }, "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": 52.7, "grade": "D", "agentReady": false, "rank": 341, "ranked": true, "rankOf": 452, "categoryRank": 6, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 46, "maintenance": 56, "payments": 25, "reliability": 60, "schema": 54, "security": 58, "transparency": 72 }, "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.", "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": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 52.7 } ], "editorialScores": { "ergonomics": 46, "maintenance": 56, "payments": 25, "reliability": 60, "schema": 54, "security": 58, "transparency": 53 }, "provenanceScore": 90 }, "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": 90 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/whimsical.json", "live": { "slug": "whimsical", "probe": { "target": "https://mcp.whimsical.com/mcp", "method": "mcp-initialize", "lastAt": "2026-10-05T01:43:48.301038186Z", "lastOk": true, "lastStatus": 401, "lastMs": 119, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 133, "p95ms24h": 302, "samples24h": 272, "samples30d": 1122, "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": 20, "ok": 20 } ] }, "vendorStatus": { "page": "https://status.whimsical.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-04T21:40:34.149987666Z" }, "versions": [ { "registry": "mcp-registry", "name": "com.whimsical/mcp", "version": "1.1.0", "seenAt": "2026-10-04T23:42:40.113054682Z" } ], "githubStars": 5, "securityTxt": { "url": "https://whimsical.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-04T15:16:00.652711817Z" }, "domain": { "domain": "whimsical.com", "registered": "1998-09-26", "source": "https://rdap.verisign.com/com/v1/domain/whimsical.com", "checkedAt": "2026-10-04T13:09:41.71766445Z" }, "pages": [ { "url": "https://whimsical.com/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-10-04T15:48:48.270395498Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "e3b0c44298fc" }, { "url": "https://whimsical.com/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-04T15:48:50.384078394Z", "changedAt": "2026-10-02T15:25:00.986375786Z", "fingerprint": "ba8c84ff8594" }, { "url": "https://whimsical.com/terms/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-04T15:48:54.724996499Z", "changedAt": "2026-10-02T15:25:05.223921008Z", "fingerprint": "bd791e394aec" }, { "url": "https://whimsical.com/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-04T15:48:52.500607347Z", "changedAt": "2026-10-02T15:25:03.084028164Z", "fingerprint": "1f3e72596005" } ], "mcpTools": { "url": "https://mcp.whimsical.com/mcp", "checkedAt": "2026-10-04T22:20:00.900748807Z", "status": "auth", "note": "asks for credentials before listing its tools", "changedAt": "2026-09-30T21:57:09.851244047Z" }, "updatedAt": "2026-10-05T01:43:48.301038186Z" } }, "summary": "Whimsical MCP has a score of 52.7 (D) against Cloudviz API's 37.9 (F). Both do diagram create. The largest gap is maintenance \u0026 community, 51 points." }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/cloudviz-vs-whimsical", "json": "https://www.anchorterminal.com/compare/cloudviz-vs-whimsical.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/cloudviz-vs-whimsical.md", "slim": "https://www.anchorterminal.com/compare/cloudviz-vs-whimsical.min.md" }, "markdown": "Whimsical MCP has a score of 52.7 (D) against Cloudviz API's 37.9 (F). Both do diagram create. The largest gap is maintenance \u0026 community, 51 points.\n\n- Cloudviz API: grade F, 37.9/100, rank #432 of 452. Markdown https://www.anchorterminal.com/tools/cloudviz.md · JSON https://www.anchorterminal.com/api/v1/tools/cloudviz.json\n- Whimsical MCP: grade D, 52.7/100, rank #341 of 452. Markdown https://www.anchorterminal.com/tools/whimsical.md · JSON https://www.anchorterminal.com/api/v1/tools/whimsical.json\n\n## Which one, for what\n\nPick Cloudviz API for nothing in particular (no category where it leads by five points or more).\n\nPick Whimsical MCP for reliability (+40), security \u0026 auth (+5), payments \u0026 pricing (+5), maintenance \u0026 community (+51), transparency \u0026 trust (+25).\n\n## Score by category\n\n| Category | Weight | Cloudviz API | Whimsical MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 20 | 60 | Whimsical MCP +40 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 58 | 54 | Cloudviz API +4 |\n| Agent ergonomics | 13% (16.2 this run) | 50 | 46 | Cloudviz API +4 |\n| Security \u0026 auth | 14% (17.5 this run) | 53 | 58 | Whimsical MCP +5 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 25 | Whimsical MCP +5 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 5 | 56 | Whimsical MCP +51 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 47 | 72 | Whimsical MCP +25 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **37.9 · F** | **52.7 · D** | |\n\n## Facts side by side\n\n| Fact | Cloudviz API | Whimsical MCP |\n| --- | --- | --- |\n| Kind | HTTP API | MCP server |\n| Vendor | Cloudviz | Whimsical |\n| Hosted endpoint | `https://api.cloudviz.io` | `https://mcp.whimsical.com/mcp` |\n| Transports | HTTP | Streamable HTTP |\n| Auth | API key | OAuth |\n| Pricing | Paid | Freemium |\n| x402 | no | no |\n| Licence | none | proprietary |\n| Tools exposed | none | 18 |\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 | yes | no |\n| llms.txt | no | no |\n| MCP registry | not listed | `com.whimsical/mcp` |\n| Last release | none | 2026-09-08 |\n| Popularity | none | 5 stars |\n| Agent reviews | 2.5/5 (2) | 3/5 (2) |\n\n## Verdicts\n\n**Cloudviz API.** Diagrams come from the live AWS account through a read-only cross-account role with a per-customer external ID. AWS only, and API access starts at the $49 a month Team plan.\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### Cloudviz API\n\n1. Call `GET /aws/accounts/` first to get the Cloudviz account ID, then request `/aws/accounts/{account-id}/{region}/{format}`\n2. On a 202, wait and repeat the same GET until the diagram is ready\n3. Ask for `jsonSnapshot` or `jsonDiagram` (there is no plain `json` format) when the agent has to reason over resources\n4. Use a read-only key unless the agent has to add, change or delete AWS accounts\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## Other comparisons with Cloudviz API or Whimsical MCP\n\n- [Cloudviz API vs Diagrams.so API + MCP](https://www.anchorterminal.com/compare/cloudviz-vs-diagrams-so.md)\n- [Cloudviz API vs draw.io + MCP](https://www.anchorterminal.com/compare/cloudviz-vs-drawio.md)\n- [Cloudviz API vs Eraser API + MCP](https://www.anchorterminal.com/compare/cloudviz-vs-eraser.md)\n- [Cloudviz API vs Lucid API + MCP](https://www.anchorterminal.com/compare/cloudviz-vs-lucid.md)\n- [Cloudviz API vs Mermaid Chart MCP](https://www.anchorterminal.com/compare/cloudviz-vs-mermaid-chart.md)\n- [Cloudviz API vs Structurizr + MCP](https://www.anchorterminal.com/compare/cloudviz-vs-structurizr.md)\n- [Cloudviz API vs tldraw SDK + MCP](https://www.anchorterminal.com/compare/cloudviz-vs-tldraw.md)\n- [Diagrams.so API + MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/diagrams-so-vs-whimsical.md)\n- [draw.io + MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/drawio-vs-whimsical.md)\n- [Eraser API + MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/eraser-vs-whimsical.md)\n- [Lucid API + MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/lucid-vs-whimsical.md)\n- [Mermaid Chart MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/mermaid-chart-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", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-05", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.3", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Cloudviz API vs Whimsical MCP", "url": "" } ], "description": "Whimsical MCP has a score of 52.7 (D) against Cloudviz API's 37.9 (F). Both do diagram create. The largest gap is maintenance \u0026 community, 51 points. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Cloudviz API F 37.9", "Whimsical MCP D 52.7", "scores" ], "h1": "Cloudviz API vs Whimsical MCP", "image": "https://www.anchorterminal.com/assets/og/compare-cloudviz-vs-whimsical.png", "path": "/compare/cloudviz-vs-whimsical", "published": "2026-10-01", "section": "tools", "title": "Cloudviz API vs Whimsical MCP for AI agents, F 37.9 vs D 52.7", "toc": null, "updated": "2026-10-05", "url": "https://www.anchorterminal.com/compare/cloudviz-vs-whimsical" }, "tokens": { "markdown": 1450, "slim": 330 }, "version": 1 }