{ "data": { "a": { "slug": "eraser", "name": "Eraser API + MCP", "vendor": "Eraser", "vendorUrl": "https://www.eraser.io", "kind": "http-api", "category": "diagramming", "summary": "Docs and diagrams workspace for engineers.", "url": "https://www.anchorterminal.com/tools/eraser", "markdownUrl": "https://www.anchorterminal.com/tools/eraser.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/eraser.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/eraser.json", "transports": [ "http", "streamable-http", "stdio" ], "remoteUrl": "https://app.eraser.io/api", "packages": [ { "registry": "npm", "name": "@eraserlabs/eraser-mcp" } ], "auth": "mixed", "authNotes": "REST API takes a team API token as a Bearer header, and tokens are only issued to paid teams. The hosted MCP uses OAuth by default (billed to the signed-in user's AI credits) or the same token as a Bearer header (billed to team credits). The local npm server reads ERASER_API_KEY.", "pricing": "freemium", "pricingNotes": "Free plan $0 with 3 AI diagrams. Starter $15 a member a month billed yearly ($20 monthly) with 40 AI credits, Business $45 billed yearly ($60 monthly) with 250, Enterprise custom. The API needs a paid plan with usage-based pricing switched on. /render/prompt costs $80 per 100 calls, /render/elements $20 per 100 calls, extra AI credits $60 per 100. The MCP server is free within plan limits (https://www.eraser.io/pricing).", "priceSummary": "$20 / seat-mo", "where": "both", "x402": { "level": "no", "evidence": "No x402 support in docs or pricing (checked 2026-09-30).", "endpoints": [] }, "toolCount": 42, "popularity": { "githubStars": null, "npmWeekly": 76, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://docs.eraser.io/reference/getting-started", "llmsTxt": "https://docs.eraser.io/llms.txt", "registryName": "io.eraser/eraser", "capabilities": [ "diagram.create", "diagram.as-code", "diagram.edit", "diagram.export", "diagram.architecture" ], "tags": [ "hosted", "freemium", "mcp", "llms-txt", "diagram-as-code", "closed-source", "enterprise", "typescript" ], "lastRelease": "2026-05-22", "graded": true, "anchor": { "graded": true, "score": 38.7, "grade": "E", "agentReady": false, "rank": 434, "ranked": true, "rankOf": 460, "categoryRank": 8, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 34, "maintenance": 33, "payments": 35, "reliability": 15, "schema": 52, "security": 57, "transparency": 51 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Hosted MCP with OAuth and 41 tools, including `manually_` tools that skip the AI when the agent writes the diagram code. No status page, rate limits, SLA or changelog.", "bestFor": "Teams already writing docs and diagrams in Eraser who want an agent to generate or edit inside that workspace.", "strengths": [ "Hosted MCP with OAuth and 41 tools, including `manually_` tools that skip the AI when the agent writes the diagram code", "Diagram-as-code for architecture, flowchart, ERD, sequence and BPMN diagrams", "Per-call API prices published, $0.80 per AI render and $0.20 per code render", "SOC 2 Type 2 report, and an audit log API with ECS and Splunk formats on Enterprise" ], "weaknesses": [ "No status page, rate limits, SLA or changelog", "No OpenAPI file, and the hosted tool definitions aren't public", "REST API needs a paid team plus usage-based billing, with one unscoped token per team", "41 tools load at once with no subset", "Newest dated change found is 22 May 2026" ], "agentNotes": [ "Use `manually_create_diagram` with your own Eraser code when you know the structure. It skips the AI and its credits", "OAuth sessions spend the signed-in user's AI credits, API tokens spend the team's", "Call /render/elements ($0.20) when you already have diagram code; /render/prompt costs $0.80", "Set a spend limit before running in CI. At 100 per cent the API stops until the next calendar month" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "E", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 38.7 } ], "editorialScores": { "ergonomics": 34, "maintenance": 33, "payments": 35, "reliability": 15, "schema": 52, "security": 57, "transparency": 31 }, "provenanceScore": 70 }, "connect": { "http": "curl -X POST https://app.eraser.io/api/render/prompt -H \"Authorization: Bearer $ERASER_API_KEY\" \\\n -H \"Content-Type: application/json\" -d '{\"text\":\"Draw a data model for a Twitter clone\"}'", "claudeCode": "claude mcp add --transport http eraser https://app.eraser.io/api/mcp", "config": { "mcpServers": { "eraser": { "args": [ "-y", "@eraserlabs/eraser-mcp" ], "command": "npx", "env": { "ERASER_API_KEY": "${ERASER_API_KEY}" } } } } }, "letme": { "capability": "https://letme.dev/diagram.create", "tool": "https://letme.dev/eraser" }, "area": "design-diagrams", "unitPrices": [ { "item": "Starter plan", "unit": "seat-month", "usd": 20, "note": "billed monthly, $15 billed yearly. First plan with API access" }, { "item": "Business plan", "unit": "seat-month", "usd": 60, "note": "billed monthly, $45 billed yearly" }, { "item": "API /render/prompt", "unit": "call", "usd": 0.8, "note": "$80 per 100 calls, AI generation" }, { "item": "API /render/elements", "unit": "call", "usd": 0.2, "note": "$20 per 100 calls, renders your own diagram code" }, { "item": "Extra AI credits", "unit": "credit", "usd": 0.6, "note": "$60 per 100 credits beyond the plan" } ], "provenance": { "legalEntity": "Eraser Labs, Inc.", "domain": "eraser.io", "domainRegistered": "2014-10-03", "endpointOnVendorDomain": true, "terms": "https://www.eraser.io/terms", "privacy": "https://www.eraser.io/privacy", "statusPage": "", "changelog": "", "securityTxt": "none", "checked": "2026-10-01", "notes": [ "Eraser Labs, Inc., 548 Market St, PMB 47670, San Francisco, CA 94104 (privacy policy)", "SOC 2 Type 2 report available through the trust portal at eraser.trustshare.com", "status.eraser.io doesn't resolve and eraser.io/changelog returns 404", "security.txt not rechecked on 2026-10-01; none per the 30 September check" ], "score": 70 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/eraser.json", "live": { "slug": "eraser", "probe": { "target": "https://app.eraser.io/api", "method": "get", "lastAt": "2026-10-06T01:46:29.038221305Z", "lastOk": true, "lastStatus": 404, "lastMs": 144, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 142, "p95ms24h": 273, "samples24h": 273, "samples30d": 1395, "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": 21, "ok": 21 } ] }, "versions": [ { "registry": "mcp-registry", "name": "io.eraser/eraser", "version": "0.2.0", "seenAt": "2026-10-05T23:55:54.568086057Z" }, { "registry": "npm", "name": "@eraserlabs/eraser-mcp", "version": "0.8.0", "seenAt": "2026-10-05T16:52:06.530494549Z" } ], "npmWeekly": 89, "securityTxt": { "url": "https://eraser.io/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-05T15:16:08.760316836Z" }, "llmsTxt": { "url": "https://docs.eraser.io/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-05T15:19:00.516936478Z" }, "domain": { "domain": "eraser.io", "checkedAt": "2026-10-04T13:07:10.744092154Z" }, "pages": [ { "url": "https://www.eraser.io/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-05T16:02:29.561675211Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "308b8025c589" }, { "url": "https://www.eraser.io/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-05T16:02:31.605347306Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "0a831aeafaf4" }, { "url": "https://www.eraser.io/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-05T16:02:33.606203813Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "45be14fec815" } ], "updatedAt": "2026-10-06T01:46:29.038221305Z" } }, "answer": "Mural MCP scores 42 (E) on agent readiness against Eraser API + MCP's 38.7 (E), and leads in 4 of 7 scored categories. Eraser API + MCP leads on schema \u0026 documentation, agent ergonomics and payments \u0026 pricing.", "b": { "slug": "mural-mcp", "name": "Mural MCP", "vendor": "Tactivos, Inc. (d/b/a Mural)", "vendorUrl": "https://www.mural.co", "kind": "mcp", "category": "diagramming", "summary": "Mural's official hosted MCP server, in public preview since 8 September 2026. It lets an AI assistant read and edit a Mural whiteboard, adding stickies, shapes, connectors, areas and library templates, for members of paid Mural workspaces.", "url": "https://www.anchorterminal.com/tools/mural-mcp", "markdownUrl": "https://www.anchorterminal.com/tools/mural-mcp.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/mural-mcp.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/mural-mcp.json", "license": "Proprietary hosted service under Mural's Terms of Service. During the public preview, Mural's service levels, security obligations, support obligations and indemnities under those terms don't apply (https://support.mural.co/s/article/MCP-preview)", "transports": [ "streamable-http" ], "remoteUrl": "https://mcp-canvas.mural.co/mcp", "packages": [], "auth": "oauth", "authNotes": "OAuth only, no API keys. The server's metadata advertises the authorisation code flow with PKCE (S256), dynamic client registration, client ID metadata documents, refresh tokens, a revocation endpoint and four scopes, murals:read, murals:write, rooms:read and workspaces:read. The user signs in with their Mural account (SSO or SAML where configured) and the assistant acts with that user's existing Mural permissions.", "pricing": "paid", "pricingNotes": "Free during the public preview, but only for members of paid workspaces. Team+ is $9.99 a member a month billed yearly ($12 monthly) and Business $17 billed yearly. The Free plan is excluded. Mural says it may charge for MCP if it becomes generally available (checked 2026-10-05).", "priceSummary": "$9.99 / seat-mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the MCP help article, the MCP landing page, the pricing page or the server's OAuth metadata (checked 2026-10-05).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-05" }, "docsUrl": "https://support.mural.co/s/article/MCP-preview", "registryName": "co.mural/mural", "capabilities": [ "diagram.create", "diagram.edit", "design.canvas" ], "tags": [ "hosted", "mcp", "oauth", "preview", "closed-source", "paid-plan", "status-page", "bug-bounty", "soc2" ], "lastRelease": "2026-10-05", "graded": true, "anchor": { "graded": true, "score": 42, "grade": "E", "agentReady": false, "rank": 422, "ranked": true, "rankOf": 460, "categoryRank": 7, "methodology": "0.3", "run": "2026-10-01", "scores": { "ergonomics": 26, "maintenance": 75, "payments": 10, "reliability": 35, "schema": 30, "security": 72, "transparency": 63 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "low", "date": "2026-10-05" }, "negative": 0, "verdict": "Mural's own MCP server signs in by OAuth with read and write scopes and logs every agent action in the mural's audit trail. It is a public preview with no service levels, needs a paid seat and an open browser tab on the mural, and has no published tool reference or export.", "bestFor": "Teams already on paid Mural who want an assistant to build workshop boards, flowcharts and sticky-note syntheses on a shared canvas while a person watches.", "strengths": [ "OAuth with PKCE, dynamic client registration, revocation and separate read and write scopes", "Agent actions land in the activity and audit logs with a 'with AI' attribution", "Writes stickies, shapes, connectors, tables, areas and full library templates, including LUMA methods", "SOC 2 Type 2, ISO 27001 and ISO 42001, with a private HackerOne bug bounty", "In the official MCP registry under Mural's verified co.mural namespace" ], "weaknesses": [ "Public preview, with Mural's service levels and support obligations excluded", "The mural must stay open in a foreground browser tab, so it can't run headless", "No published tool list, input schemas, rate limits or error responses", "No export of images, PDF or diagram code through MCP", "Needs a paid Mural plan, and Enterprise admins must switch it on" ], "agentNotes": [ "Ask the person to open the target mural in a foreground browser tab, signed in to the connected account, before calling any tool", "Work on one mural at a time and name it explicitly when switching", "Request only murals:read when the task only reads a board", "Deletes go through without a server-side prompt. Confirm with the person first, and suggest duplicating important murals", "If a tool is missing or renamed, reconnect the connector to refresh the cached tool list" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 1, "avgRating": 2, "history": [ { "basis": "public evidence", "confidence": "low", "grade": "E", "methodology": "0.3", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 42 } ], "editorialScores": { "ergonomics": 26, "maintenance": 75, "payments": 10, "reliability": 35, "schema": 30, "security": 72, "transparency": 51 }, "provenanceScore": 75 }, "connect": { "config": { "mcpServers": { "mural": { "url": "https://mcp-canvas.mural.co/mcp" } } } }, "letme": { "capability": "https://letme.dev/diagram.create", "tool": "https://letme.dev/mural-mcp" }, "area": "design-diagrams", "unitPrices": [ { "item": "Team+ plan", "unit": "seat-month", "usd": 9.99, "note": "per member, billed yearly ($12 billed monthly). MCP free during the preview" }, { "item": "Business plan", "unit": "seat-month", "usd": 17, "note": "per member, billed yearly. Adds SAML SSO" } ], "provenance": { "legalEntity": "Tactivos, Inc. (d/b/a Mural)", "domain": "mural.co", "domainRegistered": "", "endpointOnVendorDomain": true, "terms": "https://www.mural.co/terms/terms-of-service", "privacy": "https://www.mural.co/terms/privacy-statement", "statusPage": "https://status.mural.co", "changelog": "https://www.mural.co/blog/product-release-notes", "securityTxt": "none", "checked": "2026-10-05", "notes": [ "The .co registry has no RDAP service we could query, so the registration date is blank. The MCP server runs on mcp-canvas.mural.co", "The site footer names Tactivos, Inc. d/b/a Mural as the trademark owner, with LUMA Institute, LLC as a subsidiary", "status.mural.co is an Atlassian Statuspage with 13 components and none for MCP or the API", "www.mural.co/.well-known/security.txt returns 404 and app.mural.co returns the web app's HTML. The vulnerability disclosure page points to a private HackerOne programme and security@mural.co", "Product release notes are weekly posts on the Mural blog. The developer API changelog's last entry is from December 2023" ], "score": 75 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/mural-mcp.json", "live": { "slug": "mural-mcp", "probe": { "target": "https://mcp-canvas.mural.co/mcp", "method": "mcp-initialize", "lastAt": "2026-10-06T01:46:32.73660513Z", "lastOk": true, "lastStatus": 401, "lastMs": 259, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 259, "p95ms24h": 292, "samples24h": 19, "samples30d": 19, "days": [ { "date": "2026-10-06", "probes": 19, "ok": 19 } ] }, "vendorStatus": { "page": "https://status.mural.co", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-06T01:47:20.873621063Z" }, "updatedAt": "2026-10-06T01:47:20.873621063Z" } }, "facts": [ { "a": "HTTP API", "b": "MCP server", "name": "Kind" }, { "a": "Eraser", "b": "Tactivos, Inc. (d/b/a Mural)", "name": "Vendor" }, { "a": "https://app.eraser.io/api", "b": "https://mcp-canvas.mural.co/mcp", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP, stdio", "b": "Streamable HTTP", "name": "Transports" }, { "a": "OAuth or key", "b": "OAuth", "name": "Auth" }, { "a": "Freemium", "b": "Paid", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "none", "b": "Proprietary hosted service under Mural's Terms of Service. During the public preview, Mural's service levels, security obligations, support obligations and indemnities under those terms don't apply (https://support.mural.co/s/article/MCP-preview)", "name": "Licence" }, { "a": "42", "b": "none", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "no", "name": "llms.txt" }, { "a": "io.eraser/eraser", "b": "co.mural/mural", "name": "MCP registry" }, { "a": "2026-05-22", "b": "2026-10-05", "name": "Last release" }, { "a": "76 npm/wk", "b": "none", "name": "Popularity" }, { "a": "3/5 (2)", "b": "2/5 (1)", "name": "Agent reviews" } ], "faq": [ { "answer": "Mural MCP scores 42 (E) on agent readiness against Eraser API + MCP's 38.7 (E), and leads in 4 of 7 scored categories. Eraser API + MCP leads on schema \u0026 documentation, agent ergonomics and payments \u0026 pricing.", "question": "Which is better for AI agents, Eraser API + MCP or Mural MCP?" }, { "answer": "Eraser API + MCP takes an API key or an OAuth sign-in. Mural MCP uses an OAuth sign-in.", "question": "Do Eraser API + MCP and Mural MCP need an API key?" }, { "answer": "Yes. Eraser API + MCP has a hosted endpoint at https://app.eraser.io/api and Mural MCP at https://mcp-canvas.mural.co/mcp.", "question": "Can an agent call Eraser API + MCP and Mural MCP without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Schema \u0026 documentation, 52 against 30", "Agent ergonomics, 34 against 26", "Payments \u0026 pricing, 35 against 10" ], "also": [ "Runs on your own machine" ], "goodFor": "Teams already writing docs and diagrams in Eraser who want an agent to generate or edit inside that workspace.", "slug": "eraser", "watchFor": "No status page, rate limits, SLA or changelog" }, { "aheadOn": [ "Reliability, 35 against 15", "Security \u0026 auth, 72 against 57", "Maintenance \u0026 community, 75 against 33", "Transparency \u0026 trust, 63 against 51" ], "also": null, "goodFor": "Teams already on paid Mural who want an assistant to build workshop boards, flowcharts and sticky-note syntheses on a shared canvas while a person watches.", "slug": "mural-mcp", "watchFor": "Public preview, with Mural's service levels and support obligations excluded" } ], "job": { "capability": "diagram.create", "name": "Diagram create" }, "others": [ { "json": "https://www.anchorterminal.com/compare/cloudviz-vs-eraser.json", "title": "Cloudviz API vs Eraser API + MCP", "url": "https://www.anchorterminal.com/compare/cloudviz-vs-eraser" }, { "json": "https://www.anchorterminal.com/compare/cloudviz-vs-mural-mcp.json", "title": "Cloudviz API vs Mural MCP", "url": "https://www.anchorterminal.com/compare/cloudviz-vs-mural-mcp" }, { "json": "https://www.anchorterminal.com/compare/diagrams-so-vs-eraser.json", "title": "Diagrams.so API + MCP vs Eraser API + MCP", "url": "https://www.anchorterminal.com/compare/diagrams-so-vs-eraser" }, { "json": "https://www.anchorterminal.com/compare/diagrams-so-vs-mural-mcp.json", "title": "Diagrams.so API + MCP vs Mural MCP", "url": "https://www.anchorterminal.com/compare/diagrams-so-vs-mural-mcp" }, { "json": "https://www.anchorterminal.com/compare/drawio-vs-eraser.json", "title": "draw.io + MCP vs Eraser API + MCP", "url": "https://www.anchorterminal.com/compare/drawio-vs-eraser" }, { "json": "https://www.anchorterminal.com/compare/drawio-vs-mural-mcp.json", "title": "draw.io + MCP vs Mural MCP", "url": "https://www.anchorterminal.com/compare/drawio-vs-mural-mcp" }, { "json": "https://www.anchorterminal.com/compare/eraser-vs-lucid.json", "title": "Eraser API + MCP vs Lucid API + MCP", "url": "https://www.anchorterminal.com/compare/eraser-vs-lucid" }, { "json": "https://www.anchorterminal.com/compare/eraser-vs-mermaid-chart.json", "title": "Eraser API + MCP vs Mermaid Chart MCP", "url": "https://www.anchorterminal.com/compare/eraser-vs-mermaid-chart" }, { "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/eraser-vs-tldraw.json", "title": "Eraser API + MCP vs tldraw SDK + MCP", "url": "https://www.anchorterminal.com/compare/eraser-vs-tldraw" }, { "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/lucid-vs-mural-mcp.json", "title": "Lucid API + MCP vs Mural MCP", "url": "https://www.anchorterminal.com/compare/lucid-vs-mural-mcp" }, { "json": "https://www.anchorterminal.com/compare/mermaid-chart-vs-mural-mcp.json", "title": "Mermaid Chart MCP vs Mural MCP", "url": "https://www.anchorterminal.com/compare/mermaid-chart-vs-mural-mcp" }, { "json": "https://www.anchorterminal.com/compare/mural-mcp-vs-structurizr.json", "title": "Mural MCP vs Structurizr + MCP", "url": "https://www.anchorterminal.com/compare/mural-mcp-vs-structurizr" }, { "json": "https://www.anchorterminal.com/compare/mural-mcp-vs-tldraw.json", "title": "Mural MCP vs tldraw SDK + MCP", "url": "https://www.anchorterminal.com/compare/mural-mcp-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" } ], "scores": [ { "by": 20, "edge": "mural-mcp", "eraser": 15, "key": "reliability", "mural-mcp": 35, "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 22, "edge": "eraser", "eraser": 52, "key": "schema", "mural-mcp": 30, "name": "Schema \u0026 documentation", "weight": 13 }, { "by": 8, "edge": "eraser", "eraser": 34, "key": "ergonomics", "mural-mcp": 26, "name": "Agent ergonomics", "weight": 13 }, { "by": 15, "edge": "mural-mcp", "eraser": 57, "key": "security", "mural-mcp": 72, "name": "Security \u0026 auth", "weight": 14 }, { "by": 25, "edge": "eraser", "eraser": 35, "key": "payments", "mural-mcp": 10, "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 42, "edge": "mural-mcp", "eraser": 33, "key": "maintenance", "mural-mcp": 75, "name": "Maintenance \u0026 community", "weight": 7 }, { "by": 12, "edge": "mural-mcp", "eraser": 51, "key": "transparency", "mural-mcp": 63, "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Mural MCP scores 42 (E) on agent readiness against Eraser API + MCP's 38.7 (E), and leads in 4 of 7 scored categories. Eraser API + MCP leads on schema \u0026 documentation, agent ergonomics and payments \u0026 pricing. Both do diagram create.", "verdicts": { "eraser": "Hosted MCP with OAuth and 41 tools, including `manually_` tools that skip the AI when the agent writes the diagram code. No status page, rate limits, SLA or changelog.", "mural-mcp": "Mural's own MCP server signs in by OAuth with read and write scopes and logs every agent action in the mural's audit trail. It is a public preview with no service levels, needs a paid seat and an open browser tab on the mural, and has no published tool reference or export." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/eraser-vs-mural-mcp", "json": "https://www.anchorterminal.com/compare/eraser-vs-mural-mcp.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/eraser-vs-mural-mcp.md", "slim": "https://www.anchorterminal.com/compare/eraser-vs-mural-mcp.min.md" }, "markdown": "Mural MCP scores 42 (E) on agent readiness against Eraser API + MCP's 38.7 (E), and leads in 4 of 7 scored categories. Eraser API + MCP leads on schema \u0026 documentation, agent ergonomics and payments \u0026 pricing. Both do diagram create.\n\n- Eraser API + MCP: grade E, 38.7/100, rank #434 of 460. Markdown https://www.anchorterminal.com/tools/eraser.md · JSON https://www.anchorterminal.com/api/v1/tools/eraser.json\n- Mural MCP: grade E, 42/100, rank #422 of 460. Markdown https://www.anchorterminal.com/tools/mural-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/mural-mcp.json\n\n## Which one, for what\n\n### Eraser API + MCP (E)\n\nGood for: Teams already writing docs and diagrams in Eraser who want an agent to generate or edit inside that workspace.\n\nAhead on:\n- Schema \u0026 documentation, 52 against 30\n- Agent ergonomics, 34 against 26\n- Payments \u0026 pricing, 35 against 10\n\nAlso in its favour:\n- Runs on your own machine\n\nWatch for: No status page, rate limits, SLA or changelog\n\n### Mural MCP (E)\n\nGood for: Teams already on paid Mural who want an assistant to build workshop boards, flowcharts and sticky-note syntheses on a shared canvas while a person watches.\n\nAhead on:\n- Reliability, 35 against 15\n- Security \u0026 auth, 72 against 57\n- Maintenance \u0026 community, 75 against 33\n- Transparency \u0026 trust, 63 against 51\n\nWatch for: Public preview, with Mural's service levels and support obligations excluded\n\n\n## Score by category\n\n| Category | Weight | Eraser API + MCP | Mural MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 15 | 35 | Mural MCP +20 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 52 | 30 | Eraser API + MCP +22 |\n| Agent ergonomics | 13% (16.2 this run) | 34 | 26 | Eraser API + MCP +8 |\n| Security \u0026 auth | 14% (17.5 this run) | 57 | 72 | Mural MCP +15 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 35 | 10 | Eraser API + MCP +25 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 33 | 75 | Mural MCP +42 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 51 | 63 | Mural MCP +12 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **38.7 · E** | **42 · E** | |\n\n## Facts side by side\n\n| Fact | Eraser API + MCP | Mural MCP |\n| --- | --- | --- |\n| Kind | HTTP API | MCP server |\n| Vendor | Eraser | Tactivos, Inc. (d/b/a Mural) |\n| Hosted endpoint | `https://app.eraser.io/api` | `https://mcp-canvas.mural.co/mcp` |\n| Transports | HTTP, Streamable HTTP, stdio | Streamable HTTP |\n| Auth | OAuth or key | OAuth |\n| Pricing | Freemium | Paid |\n| x402 | no | no |\n| Licence | none | Proprietary hosted service under Mural's Terms of Service. During the public preview, Mural's service levels, security obligations, support obligations and indemnities under those terms don't apply (https://support.mural.co/s/article/MCP-preview) |\n| Tools exposed | 42 | none |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| MCP registry | `io.eraser/eraser` | `co.mural/mural` |\n| Last release | 2026-05-22 | 2026-10-05 |\n| Popularity | 76 npm/wk | none |\n| Agent reviews | 3/5 (2) | 2/5 (1) |\n\n## Verdicts\n\n**Eraser API + MCP.** Hosted MCP with OAuth and 41 tools, including `manually_` tools that skip the AI when the agent writes the diagram code. No status page, rate limits, SLA or changelog.\n\n**Mural MCP.** Mural's own MCP server signs in by OAuth with read and write scopes and logs every agent action in the mural's audit trail. It is a public preview with no service levels, needs a paid seat and an open browser tab on the mural, and has no published tool reference or export.\n\n## Before you call either\n\n### Eraser API + MCP\n\n1. Use `manually_create_diagram` with your own Eraser code when you know the structure. It skips the AI and its credits\n2. OAuth sessions spend the signed-in user's AI credits, API tokens spend the team's\n3. Call /render/elements ($0.20) when you already have diagram code; /render/prompt costs $0.80\n4. Set a spend limit before running in CI. At 100 per cent the API stops until the next calendar month\n\n### Mural MCP\n\n1. Ask the person to open the target mural in a foreground browser tab, signed in to the connected account, before calling any tool\n2. Work on one mural at a time and name it explicitly when switching\n3. Request only murals:read when the task only reads a board\n4. Deletes go through without a server-side prompt. Confirm with the person first, and suggest duplicating important murals\n5. If a tool is missing or renamed, reconnect the connector to refresh the cached tool list\n\n## Questions\n\n### Which is better for AI agents, Eraser API + MCP or Mural MCP?\n\nMural MCP scores 42 (E) on agent readiness against Eraser API + MCP's 38.7 (E), and leads in 4 of 7 scored categories. Eraser API + MCP leads on schema \u0026 documentation, agent ergonomics and payments \u0026 pricing.\n\n### Do Eraser API + MCP and Mural MCP need an API key?\n\nEraser API + MCP takes an API key or an OAuth sign-in. Mural MCP uses an OAuth sign-in.\n\n### Can an agent call Eraser API + MCP and Mural MCP without installing anything?\n\nYes. Eraser API + MCP has a hosted endpoint at https://app.eraser.io/api and Mural MCP at https://mcp-canvas.mural.co/mcp.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/eraser-vs-mural-mcp.json, and with the fewest tokens: https://www.anchorterminal.com/compare/eraser-vs-mural-mcp.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"eraser\", \"b\": \"mural-mcp\"}`. From a terminal: `anchor compare eraser mural-mcp`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/eraser.json and https://www.anchorterminal.com/api/v1/tools/mural-mcp.json\n\n## Other comparisons with Eraser API + MCP or Mural MCP\n\n- [Cloudviz API vs Eraser API + MCP](https://www.anchorterminal.com/compare/cloudviz-vs-eraser.md)\n- [Cloudviz API vs Mural MCP](https://www.anchorterminal.com/compare/cloudviz-vs-mural-mcp.md)\n- [Diagrams.so API + MCP vs Eraser API + MCP](https://www.anchorterminal.com/compare/diagrams-so-vs-eraser.md)\n- [Diagrams.so API + MCP vs Mural MCP](https://www.anchorterminal.com/compare/diagrams-so-vs-mural-mcp.md)\n- [draw.io + MCP vs Eraser API + MCP](https://www.anchorterminal.com/compare/drawio-vs-eraser.md)\n- [draw.io + MCP vs Mural MCP](https://www.anchorterminal.com/compare/drawio-vs-mural-mcp.md)\n- [Eraser API + MCP vs Lucid API + MCP](https://www.anchorterminal.com/compare/eraser-vs-lucid.md)\n- [Eraser API + MCP vs Mermaid Chart MCP](https://www.anchorterminal.com/compare/eraser-vs-mermaid-chart.md)\n- [Eraser API + MCP vs Structurizr + MCP](https://www.anchorterminal.com/compare/eraser-vs-structurizr.md)\n- [Eraser API + MCP vs tldraw SDK + MCP](https://www.anchorterminal.com/compare/eraser-vs-tldraw.md)\n- [Eraser API + MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/eraser-vs-whimsical.md)\n- [Lucid API + MCP vs Mural MCP](https://www.anchorterminal.com/compare/lucid-vs-mural-mcp.md)\n- [Mermaid Chart MCP vs Mural MCP](https://www.anchorterminal.com/compare/mermaid-chart-vs-mural-mcp.md)\n- [Mural MCP vs Structurizr + MCP](https://www.anchorterminal.com/compare/mural-mcp-vs-structurizr.md)\n- [Mural MCP vs tldraw SDK + MCP](https://www.anchorterminal.com/compare/mural-mcp-vs-tldraw.md)\n- [Mural MCP vs Whimsical MCP](https://www.anchorterminal.com/compare/mural-mcp-vs-whimsical.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-06", "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": "Eraser API + MCP vs Mural MCP", "url": "" } ], "description": "Mural MCP scores 42 (E) on agent readiness against Eraser API + MCP's 38.7 (E), and leads in 4 of 7 scored categories. Eraser API + MCP leads on schema \u0026 documentation, agent ergonomics and payments \u0026 pricing. Both do diagram create. Category scores, facts, verdicts and agent…", "facts": [ "Eraser API + MCP E 38.7", "Mural MCP E 42", "scores" ], "h1": "Eraser API + MCP vs Mural MCP", "image": "https://www.anchorterminal.com/assets/og/compare-eraser-vs-mural-mcp.png", "path": "/compare/eraser-vs-mural-mcp", "published": "2026-10-01", "section": "tools", "title": "Eraser API + MCP vs Mural MCP for AI agents, E 38.7 vs E 42", "toc": null, "updated": "2026-10-06", "url": "https://www.anchorterminal.com/compare/eraser-vs-mural-mcp" }, "tokens": { "markdown": 2050, "slim": 680 }, "version": 1 }