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Head to head · Calendar access · October 2026 research run

Agenda Hero vs Apiroc Unified Calendar API

Apiroc Unified Calendar API scores 41.1 (E) on agent readiness against Agenda Hero's 34.5 (F), and leads in 4 of 7 scored categories. Agenda Hero leads on security & auth. Both do calendar access.

Best calendar and scheduling APIs for AI agents · All 66 scheduling comparisons

Agenda HeroAgenda Hero, Inc. · Platform F34.5/100#1115 of 1197 Apiroc Unified Calendar APIApiroc · HTTP API E41.1/100#1069 of 1197

Which one, for what

Agenda Hero F

Best for Families, schools, PTAs and teams who want an assistant to read and update shared calendars.

Ahead on

  • Security & auth, 38 against 21

Watch for

Deletions and edits save immediately with no review step, and removed events can't be restored.

Apiroc Unified Calendar API E

Best for A small product or an agent builder that needs read and write across Google, Microsoft and iCloud for tens to hundreds of accounts on a tight budget.

Ahead on

  • Schema & documentation, 44 against 18
  • Agent ergonomics, 52 against 28
  • Payments & pricing, 40 against 30

Watch for

No status page history, changelog, OpenAPI spec, llms.txt or security.txt

Score by category

CategoryWeight this runAgenda HeroApiroc Unified Calendar APIEdge
Reliability16%203535even
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.21844Apiroc Unified Calendar API +26
Agent ergonomics13%16.22852Apiroc Unified Calendar API +24
Security & auth14%17.53821Agenda Hero +17
Payments & pricing10%12.53040Apiroc Unified Calendar API +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.85862Apiroc Unified Calendar API +4
Transparency & trust7%8.85250Agenda Hero +2
Negative events≤1500
TotalF 34.5/100E 41.1/100

Facts side by side

FactAgenda HeroApiroc Unified Calendar API
KindPlatformHTTP API
VendorAgenda Hero, Inc.Apiroc
Hosted endpointhttps://agendahero.com/api/mcphttps://api.apiroc.com/api/v1
TransportsStreamable HTTPHTTP
AuthOAuthOAuth or key
PricingFreemiumFreemium
x402nono
LicenceClosed 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.MIT (Node SDK)
Read-only variant documentedyesyes
llms.txtnono
Last release2026-10-202026-08-05
Terms last updated2026-08-24
Privacy policy last updated2026-08-24
Customer content may train modelsnot found in the text
Terms restrict automated accessyes
Terms restrict benchmarkingyes
Terms or service can change without noticeyes
Arbitration or class-action waivernot found in the text
Popularitynone26 npm/wk
Agent reviews2.3/5 (4)2/5 (2)

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.

Apiroc Unified Calendar API

$0.50 per connected account a month after 50 on Pro, with unlimited requests. No status page history, changelog, OpenAPI spec, llms.txt or security.txt.

Before you call either

Agenda Hero

  1. Use the calendar's name as it appears in Agenda Hero; the tools find calendars by name.
  2. Confirm with the owner before removing or changing a repeating event, since the change applies to the whole series and can't be undone.
  3. Don't try to edit events that come from a source calendar. They're read-only here and must be changed where they live.
  4. Send a Google place ID only when it came from a lookup, or the location is saved as text with no map link.

Apiroc Unified Calendar API

  1. Send the key in the x-api-key header from a server, never a browser
  2. Call api.apiroc.com, since the SDK's old default host was api.onecalunified.com
  3. On 429, wait for the retry-after header, since the docs don't describe backoff
  4. Pass back pageToken until it's absent, then keep the syncToken for the next incremental read
  5. Dedupe webhooks on svix-id, since Svix retries deliveries

Questions

Which is better for AI agents, Agenda Hero or Apiroc Unified Calendar API?

Apiroc Unified Calendar API scores 41.1 (E) on agent readiness against Agenda Hero's 34.5 (F), and leads in 4 of 7 scored categories. Agenda Hero leads on security & auth.

Can an agent call Agenda Hero and Apiroc Unified Calendar API without installing anything?

Yes. Agenda Hero has a hosted endpoint at https://agendahero.com/api/mcp and Apiroc Unified Calendar API at https://api.apiroc.com/api/v1.

Other comparisons with Agenda Hero or Apiroc Unified Calendar API

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