Astrocal
Calendly Alternative

The best Calendly alternative in 2026

A full read/write API where Calendly has none for bookings, embeds that live in your product, flat pricing with no per-seat charges, and MCP tools your AI agents can use today. Free to start.

Try Astrocal freeSee the comparison

Honest take: when Calendly is fine

If you need a simple personal scheduling link (no embedding, no API, no custom branding), Calendly does that well. It's been around a long time, it works, and if that's all you need there's no reason to switch.

Astrocal is built for a different problem: teams who need scheduling to live inside their own product, behave like infrastructure, and connect cleanly to their stack.

Who should switch

Which is right for you?

Astrocal is right for you if...

  • You're building scheduling into your own product and need a real API
  • You need true whitelabel: your domain and zero third-party branding on paid plans
  • You want flat-rate pricing with no per-seat charges as your team grows
  • You need AI agents to check availability and create bookings via MCP
  • You want webhooks and full read/write API access on the free plan
Start free, no CC required

the competition is right for you if...

  • You just need a personal scheduling link with no integration requirements
  • You rely on Calendly's large third-party app marketplace
  • Your team is already deep in Calendly's enterprise admin tooling

Feature comparison

Astrocal vs Calendly

FeatureAstrocalCalendlyWhy it matters
API accessFull read/write REST API + OpenAPI 3.1 specNo endpoint to create bookings; read and admin operations only—
Remove all third-party brandingLaunch plan and aboveStandard and above (booking page stays on calendly.com)—
Custom booking domainAll paid plansEnterprise only—
Pricing modelFlat rate, no per-seat chargesPer seat/month—
MCP / AI agent support8 tools: full booking lifecycle including waitlistsHosted MCP server (launched March 2026)—
Widget embed (not iframe)Renders in your DOMIframe only—
Stripe paymentsBuilt in on all plans including FreeVia Stripe integration—
WebhooksAll plans including FreePaid plans only—
Round-robin schedulingYesTeams plan—
Calendar sync (Google, Outlook, CalDAV)Two-way, real-timeYes—
Free planYes, 10 bookings/monthYes, 1 event type—
OpenAPI 3.1 specPublishedNo—

What 5 Calendly seats cost vs. Astrocal

What does it actually cost for a team of 5?

Astrocal

Team of 5$49/mo flat (Grow)
Team of 10$49/mo flat (Grow)
Team of 20$199/mo flat (Scale)
  • Whitelabel included
  • Webhooks included
  • MCP Server included
Start free trial

Calendly

Team of 5$60/mo (5 Standard seats)
Team of 10$120/mo (10 Standard seats)
Team of 20$240/mo (20 Standard seats)
  • Whitelabel included
  • Webhooks included
  • MCP Server included

At the Team of 20 tier, you’d Save $41/mo compared to Calendly for a team of 5.

Pricing that scales with bookings, not seats

Start free with 10 bookings a month, no credit card. Paid plans from $12, and team members never cost extra.

Free

For prototyping

$0forever
  • 10 bookings/month
  • 1 calendar connection
  • 30 req/min API rate
  • Calendar sync
  • Email notifications
Get Started

Launch

For going live

$12/month
  • 50 bookings/month
  • 3 calendar connections
  • 60 req/min API rate
  • Everything in Free
  • Custom branding
Get Started

Grow

Most Popular

For growing products

$49/month
  • 500 bookings/month
  • 20 calendar connections
  • 500 req/min API rate
  • Everything in Launch
  • Priority support
Get Started

Scale

For high volume

$199/month
  • 5,000 bookings/month
  • 100 calendar connections
  • 2,000 req/min API rate
  • Everything in Grow
  • Dedicated support
Get Started

No per-seat pricing. Ever. See full pricing →

Migrate from Calendly in under 30 minutes

Migrating from Calendly? Here’s how.

  1. Export your event types

    Note your Calendly event type configurations: duration, availability windows, intake questions.

    5 min

  2. Recreate in Astrocal

    Use the dashboard to recreate your event types, or POST to /v1/event-types if you prefer the API route.

    10 min

  3. Update your booking links

    Swap calendly.com/yourname links for your Astrocal booking URL, or embed the widget directly on your site.

    5 min

  4. Reconnect your integrations

    Reconnect your calendars via OAuth (Google, Outlook, or CalDAV). Reconnect Stripe if you take payments. Set up webhooks for any custom automations.

    10 min

Total estimated time: ~30 minutes

Start migrating - it's free

Frequently asked questions

Yes. The free plan includes 10 bookings per month, full API access, webhooks, and calendar sync. No credit card required.
API access is the most common reason. Calendly's API has no endpoint to create bookings, so you can pull data out but you can't book programmatically. Astrocal's API is full read/write. The second most common reason is pricing: Calendly charges per seat, Astrocal charges a flat rate regardless of how many team members you have.
Your Calendly links will need to be updated. There's no automatic redirect from calendly.com to Astrocal. If you embed the widget on your own domain, your booking URL doesn't change at all.
Google Calendar, Microsoft 365, CalDAV, Stripe, and webhooks are all supported. For anything else, the full REST API and webhook system let you build any integration yourself.
Email us at support@astrocal.dev. We'll walk you through the migration and help you get set up.
Most teams are fully migrated in under an hour. The steps are: recreate your event types, reconnect your calendars, update your booking links or embed the widget. See the migration guide above.