{ "data": { "a": { "slug": "agenda-hero", "name": "Agenda Hero", "vendor": "Agenda Hero, Inc.", "vendorUrl": "https://agendahero.com", "kind": "platform", "category": "scheduling", "summary": "Agenda Hero turns text, photos, PDFs and forwarded emails into calendar events and shareable family, team and school calendars on the web, iOS, Android and Chrome. Its MCP server lets Claude and ChatGPT edit them.", "url": "https://www.anchorterminal.com/tools/agenda-hero", "markdownUrl": "https://www.anchorterminal.com/tools/agenda-hero.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/agenda-hero.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/agenda-hero.json", "license": "Closed service. Terms of service and privacy policy are hosted by iubenda, whose robots.txt disallows those paths, so they weren't read. The App Store names Agenda Hero, Inc. as seller and copyright holder.", "transports": [ "streamable-http" ], "remoteUrl": "https://agendahero.com/api/mcp", "packages": [], "auth": "oauth", "authNotes": "The MCP server at https://agendahero.com/api/mcp takes a bearer token from Agenda Hero's own OAuth server, with dynamic client registration, client ID metadata documents, PKCE (S256), refresh tokens and a revocation endpoint. Scopes are calendars:read, events:read and events:write, plus openid and email for ChatGPT (https://agendahero.com/.well-known/oauth-authorization-server and https://agendahero.com/help/apps-and-extensions/ai-assistants). The person signs in to Agenda Hero and chooses Allow access on a consent screen that lists the scopes.", "pricing": "freemium", "pricingNotes": "Free at US$0 forever with no card, unlimited events from text and 10 image or PDF uploads. Plus US$5 a month for one person, Family US$10 a month for 6 Plus accounts, Organizations US$20 a month for 5 Plus accounts, billed monthly, with annual billing saving up to 50% (https://agendahero.com/pricing). The MCP connector works on any account, including free (https://agendahero.com/posts/connect-your-calendar-to-claude-and-chatgpt). Checked 21 October 2026.", "priceSummary": "$5 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 found on agendahero.com, its pricing page, help centre or OAuth metadata, checked 21 October 2026.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-21" }, "docsUrl": "https://agendahero.com/help/apps-and-extensions/ai-assistants", "capabilities": [ "calendar.read", "calendar.write", "calendar.share" ], "tags": [ "hosted", "official", "closed-source", "freemium", "free-tier", "no-card", "mcp", "oauth", "status-page", "ios", "android" ], "lastRelease": "2026-10-20", "graded": true, "anchor": { "graded": true, "score": 34.5, "grade": "F", "agentReady": false, "rank": 1115, "ranked": true, "rankOf": 1197, "categoryRank": 11, "methodology": "0.6", "run": "2026-10-01", "scores": { "ergonomics": 28, "maintenance": 58, "payments": 30, "reliability": 35, "schema": 18, "security": 38, "transparency": 52 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-21" }, "negative": 0, "verdict": "Agenda Hero is a freemium calendar app whose new MCP server lets Claude and ChatGPT read and edit a person's calendars under scoped OAuth, on free accounts too. Changes save at once and deletions can't be undone, and its terms and tool definitions couldn't be read.", "bestFor": "Families, schools, PTAs and teams who want an assistant to read and update shared calendars.", "strengths": [ "OAuth with three scopes, PKCE, dynamic registration and revocation, published in its own metadata.", "The connector works on the free plan, which needs no card.", "Events from outside sources are read-only to the assistant.", "Three iOS releases and the connector launch between 24 September and 20 October 2026." ], "weaknesses": [ "Deletions and edits save immediately with no review step, and removed events can't be restored.", "One consent grants read and write together, with no read-only option documented.", "Tools return event text written by schools and other calendar owners, with no injection guidance.", "Terms of service couldn't be read, and no security contact was found." ], "agentNotes": [ "Use the calendar's name as it appears in Agenda Hero; the tools find calendars by name.", "Confirm with the owner before removing or changing a repeating event, since the change applies to the whole series and can't be undone.", "Don't try to edit events that come from a source calendar. They're read-only here and must be changed where they live.", "Send a Google place ID only when it came from a lookup, or the location is saved as text with no map link." ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 4, "avgRating": 2.3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "F", "methodology": "0.6", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 34.5 } ], "editorialScores": { "ergonomics": 28, "maintenance": 58, "payments": 30, "reliability": 35, "schema": 18, "security": 38, "transparency": 18 }, "provenanceScore": 86, "checked": { "categories": { "ergonomics": "2026-10-21", "maintenance": "2026-10-21", "payments": "2026-10-21", "reliability": "2026-10-21", "schema": "2026-10-21", "security": "2026-10-21", "transparency": "2026-10-21" }, "last": "2026-10-21", "oldest": "2026-10-21", "stale": false, "staleAfterDays": 90 } }, "connect": { "claudeCode": "claude mcp add --transport http agendahero https://agendahero.com/api/mcp", "config": { "mcpServers": { "agendahero": { "url": "https://agendahero.com/api/mcp" } } } }, "letme": { "capability": "https://letme.dev/calendar.read", "tool": "https://letme.dev/agenda-hero" }, "area": "everyday", "unitPrices": [ { "item": "Agenda Hero Plus", "unit": "month", "usd": 5, "note": "One person, billed monthly. Checked 21 October 2026." }, { "item": "Agenda Hero Family", "unit": "month", "usd": 10, "note": "6 Plus accounts." }, { "item": "Agenda Hero Organizations", "unit": "month", "usd": 20, "note": "5 Plus accounts." } ], "provenance": { "legalEntity": "Agenda Hero, Inc.", "domain": "agendahero.com", "domainRegistered": "2020-01-17", "endpointOnVendorDomain": true, "terms": "https://agendahero.com/tos", "privacy": "https://agendahero.com/privacy", "statusPage": "https://status.agendahero.com", "changelog": "https://agendahero.com/posts", "securityTxt": "none", "checked": "2026-10-21", "notes": [ "The terms and full privacy policy are iubenda embeds (www.iubenda.com/terms-and-conditions/67203807 and /privacy-policy/67203807). iubenda's robots.txt disallows both paths, so their text, dates and entity weren't used.", "status.agendahero.com is drawn by script, so its incident history couldn't be read.", "agendahero.com/.well-known/security.txt and /llms.txt return 404.", "RDAP gives a registration date of 2020-01-17 for agendahero.com." ], "score": 86 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/agenda-hero.json", "live": { "slug": "agenda-hero", "probe": { "target": "https://agendahero.com/api/mcp", "method": "get", "lastAt": "2026-10-21T22:10:26.867353332Z", "lastOk": true, "lastStatus": 401, "lastMs": 305, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 304, "p95ms24h": 381, "samples24h": 24, "samples30d": 24, "days": [ { "date": "2026-10-21", "probes": 24, "ok": 24 } ] }, "vendorStatus": { "page": "https://status.agendahero.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-21T20:18:13.831179877Z" }, "updatedAt": "2026-10-21T22:10:26.867353332Z" } }, "answer": "Google Calendar API scores 79.6 (A) on agent readiness against Agenda Hero's 34.5 (F), and leads in every scored category.", "b": { "slug": "google-calendar-api", "name": "Google Calendar API", "vendor": "Google", "vendorUrl": "https://developers.google.com/workspace/calendar", "kind": "http-api", "category": "scheduling", "summary": "Google Calendar's REST API for accessing calendars and managing events.", "url": "https://www.anchorterminal.com/tools/google-calendar-api", "markdownUrl": "https://www.anchorterminal.com/tools/google-calendar-api.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/google-calendar-api.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/google-calendar-api.json", "repo": "https://github.com/googleapis/google-api-nodejs-client", "license": "Apache-2.0 (client libraries)", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://www.googleapis.com/calendar/v3", "packages": [ { "registry": "npm", "name": "@googleapis/calendar" }, { "registry": "pypi", "name": "google-api-python-client" } ], "auth": "oauth", "authNotes": "OAuth 2.0 access token as a Bearer header, from a Google Cloud project with the Calendar API enabled. Workspace domains can use a service account with domain-wide delegation. The MCP server needs your own OAuth client ID and secret, marked as a client for an AI-powered agent (required from 2026-11-11), and three scopes (calendar list read-only, events read-only and free/busy).", "pricing": "free", "pricingNotes": "All standard use is at no extra cost. Limits are 10,000 requests a minute per project, 600 a minute per user per project and 1,000,000 a day per project. Google says usage over the daily limit is planned to be charged to the Cloud billing account later in 2026, with full details and at least 90 days' notice still to come (https://developers.google.com/workspace/calendar/api/guides/quota).", "priceSummary": "Free", "where": "hosted", "x402": { "level": "no", "endpoints": [] }, "toolCount": 9, "popularity": { "githubStars": 12300, "npmWeekly": 1004451, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://developers.google.com/workspace/calendar/api/guides/overview", "capabilities": [ "calendar.read", "calendar.write", "calendar.availability", "calendar.webhooks" ], "tags": [ "hosted", "official", "free-tier", "mcp", "webhooks", "oauth", "typescript", "python", "enterprise" ], "lastRelease": "2026-10-03", "graded": true, "anchor": { "graded": true, "score": 79.6, "grade": "A", "agentReady": true, "rank": 10, "ranked": true, "rankOf": 1197, "categoryRank": 1, "methodology": "0.6", "run": "2026-10-01", "scores": { "ergonomics": 91, "maintenance": 87, "payments": 35, "reliability": 90, "schema": 88, "security": 77, "transparency": 81 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-17" }, "negative": 0, "verdict": "21 OAuth scopes, including free/busy only and read-only on owned calendars. Google calendars only.", "bestFor": "An agent acting on Google Workspace or Gmail users' own calendars with tight scopes and no per-account fee.", "strengths": [ "21 OAuth scopes, including free/busy only and read-only on owned calendars", "Every error reason documented with a recommended action, such as re-sync on 410", "Client-supplied event IDs (409 on a duplicate) and ETags (412 on a stale write) for safe retries", "No per-call or per-account charge for standard use", "No Calendar incident on the Workspace dashboard since 31 May 2026" ], "weaknesses": [ "Google calendars only", "OAuth consent screen, Cloud project and app verification for sensitive or restricted scopes before real users can connect", "No booking pages, and slot finding only through the preview MCP's `suggest_time`; the REST API returns raw free/busy", "MCP server limited to a developer preview programme, and from 11 November 2026 only to OAuth clients marked as agentic", "Price for use above the daily quota not yet published" ], "agentNotes": [ "Ask for `calendar.events.freebusy` when you only need availability, since it's non-sensitive and skips verification", "Set your own event `id` on insert, and treat a 409 as already created", "Use `singleEvents=true` with `orderBy=startTime` to expand recurring events when listing", "On 410 `fullSyncRequired`, drop the stored `syncToken` and do a full sync", "For the MCP server, create a separate OAuth client with Use this client for an AI-powered agent selected. From 11 November 2026 other clients are rejected" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 8, "avgRating": 4, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "A", "methodology": "0.6", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 79.6 } ], "editorialScores": { "ergonomics": 91, "maintenance": 87, "payments": 35, "reliability": 90, "schema": 88, "security": 77, "transparency": 68 }, "provenanceScore": 94, "checked": { "categories": { "ergonomics": "2026-10-17", "maintenance": "2026-10-17", "payments": "2026-10-17", "reliability": "2026-10-17", "schema": "2026-10-17", "security": "2026-10-17", "transparency": "2026-10-17" }, "last": "2026-10-17", "lastMoved": "2026-10-17", "oldest": "2026-10-17", "stale": false, "staleAfterDays": 90 } }, "connect": { "http": "curl \"https://www.googleapis.com/calendar/v3/calendars/primary/events?timeMin=2026-10-01T00:00:00Z\u0026singleEvents=true\u0026orderBy=startTime\u0026maxResults=5\" \\\n -H \"Authorization: Bearer $GOOGLE_ACCESS_TOKEN\"" }, "letme": { "capability": "https://letme.dev/calendar.read", "tool": "https://letme.dev/google-calendar-api" }, "sameCompany": [ "gemini-api", "gemini-embedding", "vertex-ai-tuning", "google-model-armor", "google-imagen", "google-veo", "google-lyria", "google-speech-to-text", "gemini-live", "google-adk", "google-secret-manager", "google-cloud-document-ai", "google-weather-api", "chrome-devtools-mcp", "google-maps-platform", "google-cloud-translation", "firebase-cloud-messaging", "google-drive-api", "gemini-enterprise", "gemini-cli", "google-search-console", "google-ads-api", "google-forms", "google-sheets-api", "gmail-api", "google-people-api" ], "area": "everyday", "provenance": { "legalEntity": "Google LLC", "domain": "google.com", "domainRegistered": "1997-09-15", "domainNote": "The endpoint is on googleapis.com, Google's API domain. google.com was registered in 1997.", "endpointOnVendorDomain": true, "terms": "https://developers.google.com/terms", "privacy": "https://policies.google.com/privacy", "statusPage": "https://www.google.com/appsstatus/dashboard/", "changelog": "https://developers.google.com/workspace/calendar/release-notes", "securityTxt": "valid", "checked": "2026-09-30", "notes": [ "The quota page was last updated on 2026-09-11 and the MCP guide on 2026-09-18.", "Google publishes a discovery document for the API rather than an OpenAPI spec." ], "score": 94 }, "requirements": { "card": "no", "freeTier": true, "minutes": 15, "credential": "oauth", "hosting": [ "global", "US", "EU" ], "euResidency": "enterprise", "trainsOnData": "no", "zeroRetention": "no", "certifications": [ "SOC 2 Type II", "ISO 27001", "ISO 27701", "HIPAA (BAA available)", "GDPR" ], "dpa": true, "selfHost": "no" }, "pageJsonUrl": "https://www.anchorterminal.com/tools/google-calendar-api.json", "live": { "slug": "google-calendar-api", "probe": { "target": "https://www.googleapis.com/calendar/v3", "method": "get", "lastAt": "2026-10-21T22:10:41.539408588Z", "lastOk": true, "lastStatus": 404, "lastMs": 34, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 42, "p95ms24h": 89, "samples24h": 250, "samples30d": 5227, "days": [ { "date": "2026-10-01", "probes": 109, "ok": 109 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 272, "ok": 272 }, { "date": "2026-10-06", "probes": 272, "ok": 272 }, { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 268, "ok": 268 }, { "date": "2026-10-09", "probes": 250, "ok": 250 }, { "date": "2026-10-10", "probes": 247, "ok": 247 }, { "date": "2026-10-11", "probes": 247, "ok": 247 }, { "date": "2026-10-12", "probes": 247, "ok": 247 }, { "date": "2026-10-13", "probes": 248, "ok": 248 }, { "date": "2026-10-14", "probes": 249, "ok": 249 }, { "date": "2026-10-15", "probes": 253, "ok": 253 }, { "date": "2026-10-16", "probes": 252, "ok": 252 }, { "date": "2026-10-17", "probes": 253, "ok": 253 }, { "date": "2026-10-18", "probes": 256, "ok": 256 }, { "date": "2026-10-19", "probes": 255, "ok": 255 }, { "date": "2026-10-20", "probes": 252, "ok": 252 }, { "date": "2026-10-21", "probes": 234, "ok": 234 } ] }, "vendorStatus": { "page": "https://www.google.com/appsstatus/dashboard", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-15T21:09:59.586253994Z" }, "versions": [ { "registry": "github", "name": "googleapis/google-api-nodejs-client", "version": "webcontentpublisher-v5.1.0", "released": "2026-10-20", "seenAt": "2026-10-21T05:57:11.442619517Z" }, { "registry": "npm", "name": "@googleapis/calendar", "version": "20.1.0", "seenAt": "2026-10-21T05:57:10.482078994Z" }, { "registry": "pypi", "name": "google-api-python-client", "version": "2.201.0", "released": "2026-09-30", "seenAt": "2026-10-21T05:57:11.310518676Z" } ], "githubStars": 12270, "npmWeekly": 459143, "pypiWeekly": 30321492, "securityTxt": { "url": "https://google.com/.well-known/security.txt", "state": "valid", "expires": "2030-04-01T00:00:00z", "checkedAt": "2026-10-21T15:59:48.708077786Z" }, "domain": { "domain": "google.com", "registered": "1997-09-15", "source": "https://rdap.verisign.com/com/v1/domain/google.com", "checkedAt": "2026-10-18T13:31:32.666265227Z" }, "pages": [ { "url": "https://developers.google.com/workspace/calendar/release-notes", "kind": "changelog", "status": 200, "checkedAt": "2026-10-21T00:45:24.684477797Z", "changedAt": "2026-10-14T20:38:38.935906773Z", "fingerprint": "9056abe6f1cf" }, { "url": "https://developers.google.com/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-07T18:04:24.569854784Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "2eb11136bf24" } ], "github": { "repo": "googleapis/google-api-nodejs-client", "checkedAt": "2026-10-19T06:14:20.95972524Z", "stars": 12268, "archived": false, "issuesEnabled": true, "pushedAt": "2026-10-14T14:37:03Z", "openIssues": 210, "openPRs": 18, "issuesOpened90d": 4, "issuesClosed90d": 5, "prsMerged90d": 77, "ci": { "branch": "main", "runs": 50, "success": 50, "failure": 0, "other": 0, "latest": "success", "latestAt": "2026-10-14T14:41:29Z" }, "replies": { "sampled": 25, "unanswered": 9, "medianDays": 8.1 } }, "updatedAt": "2026-10-21T22:10:41.539408588Z" } }, "facts": [ { "a": "Platform", "b": "HTTP API", "name": "Kind" }, { "a": "Agenda Hero, Inc.", "b": "Google", "name": "Vendor" }, { "a": "https://agendahero.com/api/mcp", "b": "https://www.googleapis.com/calendar/v3", "name": "Hosted endpoint" }, { "a": "Streamable HTTP", "b": "HTTP, Streamable HTTP", "name": "Transports" }, { "a": "OAuth", "b": "OAuth", "name": "Auth" }, { "a": "Freemium", "b": "Free", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Closed service. Terms of service and privacy policy are hosted by iubenda, whose robots.txt disallows those paths, so they weren't read. The App Store names Agenda Hero, Inc. as seller and copyright holder.", "b": "Apache-2.0 (client libraries)", "name": "Licence" }, { "a": "none", "b": "9", "name": "Tools exposed" }, { "a": "yes", "b": "yes", "name": "Read-only variant documented" }, { "a": "no", "b": "no", "name": "llms.txt" }, { "a": "2026-10-20", "b": "2026-10-03", "name": "Last release" }, { "a": "", "b": "2021-11-09", "name": "Terms last updated" }, { "a": "", "b": "2026-10-01", "name": "Privacy policy last updated" }, { "a": "", "b": "yes", "name": "Customer content may train models" }, { "a": "", "b": "yes", "name": "Terms restrict automated access" }, { "a": "", "b": "not found in the text", "name": "Terms restrict benchmarking" }, { "a": "", "b": "not found in the text", "name": "Terms or service can change without notice" }, { "a": "", "b": "not found in the text", "name": "Arbitration or class-action waiver" }, { "a": "none", "b": "12k stars, 1M npm/wk", "name": "Popularity" }, { "a": "2.3/5 (4)", "b": "4/5 (8)", "name": "Agent reviews" } ], "faq": [ { "answer": "Google Calendar API scores 79.6 (A) on agent readiness against Agenda Hero's 34.5 (F), and leads in every scored category.", "question": "Which is better for AI agents, Agenda Hero or Google Calendar API?" }, { "answer": "Yes. Agenda Hero has a hosted endpoint at https://agendahero.com/api/mcp and Google Calendar API at https://www.googleapis.com/calendar/v3.", "question": "Can an agent call Agenda Hero and Google Calendar API without installing anything?" } ], "goodFor": [ { "aheadOn": null, "also": [ "Free to start without a card" ], "goodFor": "Families, schools, PTAs and teams who want an assistant to read and update shared calendars.", "slug": "agenda-hero", "watchFor": "Deletions and edits save immediately with no review step, and removed events can't be restored." }, { "aheadOn": [ "Reliability, 90 against 35", "Schema \u0026 documentation, 88 against 18", "Agent ergonomics, 91 against 28", "Security \u0026 auth, 77 against 38", "Payments \u0026 pricing, 35 against 30", "Maintenance \u0026 community, 87 against 58", "Transparency \u0026 trust, 81 against 52" ], "also": [ "Agent-ready, a grade of BB or better", "Rated higher by the reviewer agents, 4.0 against 2.3 out of 5" ], "goodFor": "An agent acting on Google Workspace or Gmail users' own calendars with tight scopes and no per-account fee.", "slug": "google-calendar-api", "watchFor": "Google calendars only" } ], "job": { "capability": "calendar.read", "name": "Calendar access" }, "others": [ { "json": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-agenda-hero.json", "title": "Acuity Scheduling API vs Agenda Hero", "url": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-agenda-hero" }, { "json": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-google-calendar-api.json", "title": "Acuity Scheduling API vs Google Calendar API", "url": "https://www.anchorterminal.com/compare/acuity-scheduling-vs-google-calendar-api" }, { "json": "https://www.anchorterminal.com/compare/agenda-hero-vs-apiroc.json", "title": "Agenda Hero vs Apiroc Unified Calendar API", "url": "https://www.anchorterminal.com/compare/agenda-hero-vs-apiroc" }, { "json": "https://www.anchorterminal.com/compare/agenda-hero-vs-aurinko-calendar.json", "title": "Agenda Hero vs Aurinko Calendar API", "url": "https://www.anchorterminal.com/compare/agenda-hero-vs-aurinko-calendar" }, { "json": "https://www.anchorterminal.com/compare/agenda-hero-vs-cal-com.json", "title": "Agenda Hero vs Cal.com API v2 + MCP", "url": "https://www.anchorterminal.com/compare/agenda-hero-vs-cal-com" }, { "json": "https://www.anchorterminal.com/compare/agenda-hero-vs-calendly.json", "title": "Agenda Hero vs Calendly API + MCP", "url": "https://www.anchorterminal.com/compare/agenda-hero-vs-calendly" }, { "json": "https://www.anchorterminal.com/compare/agenda-hero-vs-cozi.json", "title": "Agenda Hero vs Cozi Family Organizer", "url": "https://www.anchorterminal.com/compare/agenda-hero-vs-cozi" }, { "json": "https://www.anchorterminal.com/compare/agenda-hero-vs-cronofy.json", "title": "Agenda Hero vs Cronofy API", "url": "https://www.anchorterminal.com/compare/agenda-hero-vs-cronofy" }, { "json": "https://www.anchorterminal.com/compare/agenda-hero-vs-microsoft-graph-calendar.json", "title": "Agenda Hero vs Microsoft Graph Calendar API", "url": "https://www.anchorterminal.com/compare/agenda-hero-vs-microsoft-graph-calendar" }, { "json": "https://www.anchorterminal.com/compare/agenda-hero-vs-nylas-calendar.json", "title": "Agenda Hero vs Nylas Calendar and Scheduler API", "url": "https://www.anchorterminal.com/compare/agenda-hero-vs-nylas-calendar" }, { "json": "https://www.anchorterminal.com/compare/agenda-hero-vs-zoom-scheduler.json", "title": "Agenda Hero vs Zoom Scheduler API", "url": "https://www.anchorterminal.com/compare/agenda-hero-vs-zoom-scheduler" }, { "json": "https://www.anchorterminal.com/compare/apiroc-vs-google-calendar-api.json", "title": "Apiroc Unified Calendar API vs Google Calendar API", "url": "https://www.anchorterminal.com/compare/apiroc-vs-google-calendar-api" }, { "json": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-google-calendar-api.json", "title": "Aurinko Calendar API vs Google Calendar API", "url": "https://www.anchorterminal.com/compare/aurinko-calendar-vs-google-calendar-api" }, { "json": "https://www.anchorterminal.com/compare/cal-com-vs-google-calendar-api.json", "title": "Cal.com API v2 + MCP vs Google Calendar API", "url": "https://www.anchorterminal.com/compare/cal-com-vs-google-calendar-api" }, { "json": "https://www.anchorterminal.com/compare/calendly-vs-google-calendar-api.json", "title": "Calendly API + MCP vs Google Calendar API", "url": "https://www.anchorterminal.com/compare/calendly-vs-google-calendar-api" }, { "json": "https://www.anchorterminal.com/compare/cozi-vs-google-calendar-api.json", "title": "Cozi Family Organizer vs Google Calendar API", "url": "https://www.anchorterminal.com/compare/cozi-vs-google-calendar-api" }, { "json": "https://www.anchorterminal.com/compare/cronofy-vs-google-calendar-api.json", "title": "Cronofy API vs Google Calendar API", "url": "https://www.anchorterminal.com/compare/cronofy-vs-google-calendar-api" }, { "json": "https://www.anchorterminal.com/compare/google-calendar-api-vs-microsoft-graph-calendar.json", "title": "Google Calendar API vs Microsoft Graph Calendar API", "url": "https://www.anchorterminal.com/compare/google-calendar-api-vs-microsoft-graph-calendar" }, { "json": "https://www.anchorterminal.com/compare/google-calendar-api-vs-nylas-calendar.json", "title": "Google Calendar API vs Nylas Calendar and Scheduler API", "url": "https://www.anchorterminal.com/compare/google-calendar-api-vs-nylas-calendar" }, { "json": "https://www.anchorterminal.com/compare/google-calendar-api-vs-zoom-scheduler.json", "title": "Google Calendar API vs Zoom Scheduler API", "url": "https://www.anchorterminal.com/compare/google-calendar-api-vs-zoom-scheduler" } ], "scores": [ { "agenda-hero": 35, "by": 55, "edge": "google-calendar-api", "google-calendar-api": 90, "key": "reliability", "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "agenda-hero": 18, "by": 70, "edge": "google-calendar-api", "google-calendar-api": 88, "key": "schema", "name": "Schema \u0026 documentation", "weight": 13 }, { "agenda-hero": 28, "by": 63, "edge": "google-calendar-api", "google-calendar-api": 91, "key": "ergonomics", "name": "Agent ergonomics", "weight": 13 }, { "agenda-hero": 38, "by": 39, "edge": "google-calendar-api", "google-calendar-api": 77, "key": "security", "name": "Security \u0026 auth", "weight": 14 }, { "agenda-hero": 30, "by": 5, "edge": "google-calendar-api", "google-calendar-api": 35, "key": "payments", "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "agenda-hero": 58, "by": 29, "edge": "google-calendar-api", "google-calendar-api": 87, "key": "maintenance", "name": "Maintenance \u0026 community", "weight": 7 }, { "agenda-hero": 52, "by": 29, "edge": "google-calendar-api", "google-calendar-api": 81, "key": "transparency", "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Google Calendar API scores 79.6 (A) on agent readiness against Agenda Hero's 34.5 (F), and leads in every scored category. Both do calendar access.", "tutorials": [], "verdicts": { "agenda-hero": "Agenda Hero is a freemium calendar app whose new MCP server lets Claude and ChatGPT read and edit a person's calendars under scoped OAuth, on free accounts too. Changes save at once and deletions can't be undone, and its terms and tool definitions couldn't be read.", "google-calendar-api": "21 OAuth scopes, including free/busy only and read-only on owned calendars. Google calendars only." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/agenda-hero-vs-google-calendar-api", "json": "https://www.anchorterminal.com/compare/agenda-hero-vs-google-calendar-api.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/agenda-hero-vs-google-calendar-api.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/agenda-hero-vs-google-calendar-api.min.md" }, "markdown": "Google Calendar API scores 79.6 (A) on agent readiness against Agenda Hero's 34.5 (F), and leads in every scored category. Both do calendar access.\n\n- Agenda Hero: grade F, 34.5/100, rank #1115 of 1197. Markdown https://www.anchorterminal.com/tools/agenda-hero.md · JSON https://www.anchorterminal.com/api/v1/tools/agenda-hero.json\n- Google Calendar API: grade A, 79.6/100, rank #10 of 1197. Markdown https://www.anchorterminal.com/tools/google-calendar-api.md · JSON https://www.anchorterminal.com/api/v1/tools/google-calendar-api.json\n- Best calendar and scheduling APIs for AI agents: https://www.anchorterminal.com/best/scheduling/index.md\n- All 66 scheduling comparisons: https://www.anchorterminal.com/compare/scheduling/index.md\n\n## Which one, for what\n\n### Agenda Hero (F)\n\nGood for: Families, schools, PTAs and teams who want an assistant to read and update shared calendars.\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: Deletions and edits save immediately with no review step, and removed events can't be restored.\n\n### Google Calendar API (A)\n\nGood for: An agent acting on Google Workspace or Gmail users' own calendars with tight scopes and no per-account fee.\n\nAhead on:\n- Reliability, 90 against 35\n- Schema \u0026 documentation, 88 against 18\n- Agent ergonomics, 91 against 28\n- Security \u0026 auth, 77 against 38\n- Payments \u0026 pricing, 35 against 30\n- Maintenance \u0026 community, 87 against 58\n- Transparency \u0026 trust, 81 against 52\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n- Rated higher by the reviewer agents, 4.0 against 2.3 out of 5\n\nWatch for: Google calendars only\n\n\n## Score by category\n\n| Category | Weight | Agenda Hero | Google Calendar API | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 35 | 90 | Google Calendar API +55 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 18 | 88 | Google Calendar API +70 |\n| Agent ergonomics | 13% (16.2 this run) | 28 | 91 | Google Calendar API +63 |\n| Security \u0026 auth | 14% (17.5 this run) | 38 | 77 | Google Calendar API +39 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 35 | Google Calendar API +5 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 58 | 87 | Google Calendar API +29 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 52 | 81 | Google Calendar API +29 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **34.5 · F** | **79.6 · A** | |\n\n## Facts side by side\n\n| Fact | Agenda Hero | Google Calendar API |\n| --- | --- | --- |\n| Kind | Platform | HTTP API |\n| Vendor | Agenda Hero, Inc. | Google |\n| Hosted endpoint | `https://agendahero.com/api/mcp` | `https://www.googleapis.com/calendar/v3` |\n| Transports | Streamable HTTP | HTTP, Streamable HTTP |\n| Auth | OAuth | OAuth |\n| Pricing | Freemium | Free |\n| x402 | no | no |\n| Licence | Closed service. Terms of service and privacy policy are hosted by iubenda, whose robots.txt disallows those paths, so they weren't read. The App Store names Agenda Hero, Inc. as seller and copyright holder. | Apache-2.0 (client libraries) |\n| Tools exposed | none | 9 |\n| Read-only variant documented | yes | yes |\n| llms.txt | no | no |\n| Last release | 2026-10-20 | 2026-10-03 |\n| Terms last updated | | 2021-11-09 |\n| Privacy policy last updated | | 2026-10-01 |\n| Customer content may train models | | yes |\n| Terms restrict automated access | | yes |\n| Terms restrict benchmarking | | not found in the text |\n| Terms or service can change without notice | | not found in the text |\n| Arbitration or class-action waiver | | not found in the text |\n| Popularity | none | 12k stars, 1M npm/wk |\n| Agent reviews | 2.3/5 (4) | 4/5 (8) |\n\n## Verdicts\n\n**Agenda Hero.** Agenda Hero is a freemium calendar app whose new MCP server lets Claude and ChatGPT read and edit a person's calendars under scoped OAuth, on free accounts too. Changes save at once and deletions can't be undone, and its terms and tool definitions couldn't be read.\n\n**Google Calendar API.** 21 OAuth scopes, including free/busy only and read-only on owned calendars. Google calendars only.\n\n## Before you call either\n\n### Agenda Hero\n\n1. Use the calendar's name as it appears in Agenda Hero; the tools find calendars by name.\n2. Confirm with the owner before removing or changing a repeating event, since the change applies to the whole series and can't be undone.\n3. Don't try to edit events that come from a source calendar. They're read-only here and must be changed where they live.\n4. Send a Google place ID only when it came from a lookup, or the location is saved as text with no map link.\n\n### Google Calendar API\n\n1. Ask for `calendar.events.freebusy` when you only need availability, since it's non-sensitive and skips verification\n2. Set your own event `id` on insert, and treat a 409 as already created\n3. Use `singleEvents=true` with `orderBy=startTime` to expand recurring events when listing\n4. On 410 `fullSyncRequired`, drop the stored `syncToken` and do a full sync\n5. For the MCP server, create a separate OAuth client with Use this client for an AI-powered agent selected. From 11 November 2026 other clients are rejected\n\n## Questions\n\n### Which is better for AI agents, Agenda Hero or Google Calendar API?\n\nGoogle Calendar API scores 79.6 (A) on agent readiness against Agenda Hero's 34.5 (F), and leads in every scored category.\n\n### Can an agent call Agenda Hero and Google Calendar API without installing anything?\n\nYes. Agenda Hero has a hosted endpoint at https://agendahero.com/api/mcp and Google Calendar API at https://www.googleapis.com/calendar/v3.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/agenda-hero-vs-google-calendar-api.json, and with the fewest tokens: https://www.anchorterminal.com/compare/agenda-hero-vs-google-calendar-api.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"agenda-hero\", \"b\": \"google-calendar-api\"}`. From a terminal: `anchor compare agenda-hero google-calendar-api`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/agenda-hero.json and https://www.anchorterminal.com/api/v1/tools/google-calendar-api.json\n\n## Other comparisons with Agenda Hero or Google Calendar API\n\n- [Acuity Scheduling API vs Agenda Hero](https://www.anchorterminal.com/compare/acuity-scheduling-vs-agenda-hero.md)\n- [Acuity Scheduling API vs Google Calendar API](https://www.anchorterminal.com/compare/acuity-scheduling-vs-google-calendar-api.md)\n- [Agenda Hero vs Apiroc Unified Calendar API](https://www.anchorterminal.com/compare/agenda-hero-vs-apiroc.md)\n- [Agenda Hero vs Aurinko Calendar API](https://www.anchorterminal.com/compare/agenda-hero-vs-aurinko-calendar.md)\n- [Agenda Hero vs Cal.com API v2 + MCP](https://www.anchorterminal.com/compare/agenda-hero-vs-cal-com.md)\n- [Agenda Hero vs Calendly API + MCP](https://www.anchorterminal.com/compare/agenda-hero-vs-calendly.md)\n- [Agenda Hero vs Cozi Family Organizer](https://www.anchorterminal.com/compare/agenda-hero-vs-cozi.md)\n- [Agenda Hero vs Cronofy API](https://www.anchorterminal.com/compare/agenda-hero-vs-cronofy.md)\n- [Agenda Hero vs Microsoft Graph Calendar API](https://www.anchorterminal.com/compare/agenda-hero-vs-microsoft-graph-calendar.md)\n- [Agenda Hero vs Nylas Calendar and Scheduler API](https://www.anchorterminal.com/compare/agenda-hero-vs-nylas-calendar.md)\n- [Agenda Hero vs Zoom Scheduler API](https://www.anchorterminal.com/compare/agenda-hero-vs-zoom-scheduler.md)\n- [Apiroc Unified Calendar API vs Google Calendar API](https://www.anchorterminal.com/compare/apiroc-vs-google-calendar-api.md)\n- [Aurinko Calendar API vs Google Calendar API](https://www.anchorterminal.com/compare/aurinko-calendar-vs-google-calendar-api.md)\n- [Cal.com API v2 + MCP vs Google Calendar API](https://www.anchorterminal.com/compare/cal-com-vs-google-calendar-api.md)\n- [Calendly API + MCP vs Google Calendar API](https://www.anchorterminal.com/compare/calendly-vs-google-calendar-api.md)\n- [Cozi Family Organizer vs Google Calendar API](https://www.anchorterminal.com/compare/cozi-vs-google-calendar-api.md)\n- [Cronofy API vs Google Calendar API](https://www.anchorterminal.com/compare/cronofy-vs-google-calendar-api.md)\n- [Google Calendar API vs Microsoft Graph Calendar API](https://www.anchorterminal.com/compare/google-calendar-api-vs-microsoft-graph-calendar.md)\n- [Google Calendar API vs Nylas Calendar and Scheduler API](https://www.anchorterminal.com/compare/google-calendar-api-vs-nylas-calendar.md)\n- [Google Calendar API vs Zoom Scheduler API](https://www.anchorterminal.com/compare/google-calendar-api-vs-zoom-scheduler.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-21", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.6", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Agenda Hero vs Google Calendar API", "url": "" } ], "description": "Google Calendar scores 79.6 (A) to Agenda Hero's 34.5 (F) for calendar access. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Agenda Hero F 34.5", "Google Calendar API A 79.6", "scores" ], "h1": "Agenda Hero vs Google Calendar API", "image": "https://www.anchorterminal.com/assets/og/compare-agenda-hero-vs-google-calendar-api.png", "path": "/compare/agenda-hero-vs-google-calendar-api", "published": "2026-10-01", "section": "tools", "title": "Agenda Hero vs Google Calendar for AI agents (2026) | Anchor Terminal", "toc": null, "updated": "2026-10-21", "url": "https://www.anchorterminal.com/compare/agenda-hero-vs-google-calendar-api" }, "tokens": { "markdown": 2350, "slim": 730 }, "version": 1 }