# Cron

**Canonical:** https://apis.io/providers/cron/  
**Website:** https://cron.com/  
**APIs profiled:** 0

Cron was a next-generation calendar application for professionals and teams, backed by Initialized Capital and later acquired by Notion, where it was rebranded and relaunched as Notion Calendar. The product offered a fast, keyboard-driven desktop and mobile calendar with multi-account scheduling, time-zone handling, team availability, and deep Notion workspace integration (calendar events linked to Notion pages and databases). Cron is an end-user consumer product and does not expose a public developer API, OpenAPI definition, SDKs, or developer portal; its public surface is a marketing site, a dated changelog (retired January 2024 at the Notion Calendar rebrand), a blog, and help documentation now hosted within Notion. This profile captures Cron's public identity and domain-security posture for the API Evangelist network.

## Kin Score — 16.3 / 100 (emerging)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 16.3).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 15.8 |
| Developer Ergonomics | 11.9 |
| Commercial Clarity | 34.2 |
| Access Clarity | 34.2 |

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Cron Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Tags

Company, Consumer, Calendar, Scheduling, Productivity, Notion, Calendaring

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/cron/). Scores are computed from the provider's own public artifacts under a published rubric.