Source: https://cli.nylas.com/guides/cronofy-vs-nylas

# Cronofy vs Nylas: Calendar API Compared

Both platforms connect your application to users' calendars across providers, and both now ship MCP servers for AI agents. The fork in the road is scope: Cronofy goes deep on scheduling — availability, booking flows, interview coordination — while Nylas treats calendar as one of three connected surfaces alongside email and contacts. This comparison maps the differences so you pick once, correctly.

Written by [Hazik](https://cli.nylas.com/authors/hazik) Director of Product Management

Updated June 6, 2026

> **TL;DR:** Pick Cronofy when scheduling *is* the product — embedded booking flows, recruitment coordination, availability across organizations. Pick Nylas when calendar is one surface of a broader integration that also reads and sends email or syncs contacts, priced from $10/month for calendar-only with 5 connected accounts included. Try the calendar side in 2 commands: [`nylas auth login`](https://cli.nylas.com/docs/commands/auth-login) then [`nylas calendar events list --json`](https://cli.nylas.com/docs/commands/calendar-events-list).

> **Disclosure:** Nylas CLI is built by Nylas, Inc. This comparison reflects our testing and product understanding as of June 6, 2026.

Command references used in this guide: [`nylas auth login`](https://cli.nylas.com/docs/commands/auth-login), [`nylas calendar events list`](https://cli.nylas.com/docs/commands/calendar-events-list), and [`nylas calendar availability check`](https://cli.nylas.com/docs/commands/calendar-availability-check).

## What is the difference between Cronofy and Nylas?

Cronofy is a scheduling platform built on calendar connectivity — its [documentation](https://docs.cronofy.com/) describes it as "the temporal infrastructure connecting agents, systems, and teams," and its product surface is availability querying, an embedded scheduler, embeddable UI elements, and meeting agents. Nylas is a communications API platform: 1 integration covers email, calendar, and contacts across 4 provider families (Google, Microsoft, iCloud, and IMAP), with scheduling as one capability inside the calendar surface.

That framing decides most evaluations in under a minute. A recruitment platform embedding interview self-scheduling shops Cronofy's exact specialty. A CRM that logs email threads, syncs contacts, and books meetings needs all three surfaces, which is the Nylas shape. The harder calls are in the middle (scheduling-heavy products that may grow email features later), and the comparison table below is for those.

## How do Cronofy and Nylas compare feature by feature?

The table covers the 7 dimensions that come up in real evaluations. Pricing rows intentionally point at each vendor's public pricing page rather than reproducing numbers that change — except the published Nylas calendar anchor, which has held through 2026.

| Dimension | Cronofy | Nylas |
| --- | --- | --- |
| API scope | Calendar and scheduling | **Email + calendar + contacts** |
| Scheduling UX | Embedded Scheduler and UI Elements as first-class products | Scheduler API and components within the platform |
| AI agent path | MCP server for scheduling from Claude and other MCP clients | **MCP server spanning email, calendar, and contacts via the CLI** |
| Meeting recording | Meeting Agents (Meet, Teams, Zoom) | Notetaker (usage-priced bot recording) |
| Pricing model | [Active-user based for Scheduler; separate API pricing](https://www.cronofy.com/pricing) | **Per connected account; calendar-only $10/month incl. 5 accounts** |
| Compliance posture | ISO 27001/27018/27701, SOC 2 Type 2, HIPAA documented | 99.99% uptime SLA on annual contracts |
| Developer tooling | API reference, embeddable elements | **Open-source CLI (MIT), TUI, demo mode, SDKs** |

## When should you use Cronofy?

Choose Cronofy when scheduling depth beats surface breadth. Its specialty shows in scenarios like interview coordination (the docs ship dedicated integrations for recruitment platforms including Workday, Greenhouse, and SuccessFactors) and in organization-to-organization availability, where its Enterprise Connect model handles admin-granted calendar access at company scale. The 4 markers that point to Cronofy:

- Your product's core loop is booking time between parties, not messaging them
- You want a pre-built, embeddable scheduling UI rather than building on raw availability data
- Recruitment or HR-tech integrations (ATS platforms) are on the roadmap
- Enterprise calendar admins, not end users, will grant access in your target accounts

The trade-off is scope: when the product later needs to read an inbox or sync contacts, that's a second vendor integration with its own auth, webhooks, and billing.

## When should you use Nylas?

Choose Nylas when calendar work shares a roadmap with email or contacts — the single integration then covers all three, with one grant per user and one webhook pipeline. The per-connected-account pricing model also changes the math for products with few users but heavy usage: 5 accounts are included at $10/month for calendar-only, and cost scales with connected users rather than API call volume.

Evaluation is where the tooling difference is most visible. The CLI connects a real account and answers "does this cover our case?" the same afternoon, before any SDK code exists.

```bash
# Connect a calendar account (browser OAuth, one time)
nylas auth login

# Pull 2 weeks of events as JSON
nylas calendar events list --days 14 --json | jq '.[] | {
  title: .title, start: .when.start_time, organizer: .organizer.email
}'

# Find open 30-minute slots across participants — the availability primitive
nylas calendar availability find \
  --participants alice@example.com,bob@example.com --duration 30
```

The same session can exercise the email surface (`nylas email list --json`) to confirm the second integration you'd otherwise buy later is already covered. For the protocol-level background on how providers expose calendars, see the [calendar API comparison](https://cli.nylas.com/guides/calendar-api-comparison).

## How do the two platforms serve AI agents?

Both vendors ship servers for the [Model Context Protocol](https://modelcontextprotocol.io/), which says something about where calendar APIs are heading: the agent, not the app, is becoming the integration point. Cronofy's MCP server lets you "schedule meetings directly from tools like Claude and other MCP clients" — scheduling-scoped, consistent with the platform. The Nylas MCP server exposes email, calendar, and contacts tools together, so one agent connection can triage an inbox, check availability, and draft replies.

For agent builders the scope question repeats with higher stakes, because each additional vendor in an agent's toolchain is another auth surface to secure and audit. If your agent only books meetings, either works; if it works a mailbox too, the single-platform route also concentrates your containment and audit story in one place — see the [email APIs for AI agents comparison](https://cli.nylas.com/guides/email-apis-for-ai-agents-compared) for that evaluation in full.

## Next steps

- [Calendar API Compared: Google, Microsoft, CalDAV](https://cli.nylas.com/guides/calendar-api-comparison) — the protocol layer both platforms abstract
- [Calendly alternative for developers](https://cli.nylas.com/guides/calendly-alternative-developer-scheduling) — build scheduling flows directly on the API
- [Check calendar availability from the CLI](https://cli.nylas.com/guides/check-calendar-availability-cli) — the availability primitive in practice
- [Email APIs for AI agents compared](https://cli.nylas.com/guides/email-apis-for-ai-agents-compared) — the agent-platform evaluation across vendors
- [Full command reference](https://cli.nylas.com/docs/commands) — every calendar and availability flag documented