Cal.com vs Anthropic API
Open-source scheduling infrastructure — the self-hostable Calendly alternative
vs. API for Claude — frontier models for chat, tool use, agents, and long-context reasoning
Pricing tiers
Cal.com
Free (Cloud)
$0. 1 user. Unlimited event types. Unlimited meetings. Cal branding.
Free
Self-Hosted (OSS)
Free forever. AGPL-3.0. Docker/K8s deploy. Full feature parity with cloud.
$0 base (usage-based)
Teams
$12/user/mo. Round-robin, collective events, routing forms, Cal Video, Workflows.
$12/mo
Organizations
$37/user/mo. SSO, advanced routing, dashboards, analytics, dedicated support.
$37/mo
Enterprise
Custom. SAML, HIPAA, dedicated deployments, security reviews.
Custom
Anthropic API
Opus 4.7 — usage
Input $5 / output $25 / cache-write $6.25 / cache-read $0.50 per 1M tokens. Batch = 50% off.
Custom
Sonnet 4.6 — usage
Input $3 / output $15 / cache-write $3.75 / cache-read $0.30 per 1M tokens. Batch = 50% off.
Custom
Haiku 4.5 — usage
Input $1 / output $5 / cache-write $1.25 / cache-read $0.10 per 1M tokens. Batch = 50% off.
Custom
Free-tier quotas head-to-head
Comparing free on Cal.com vs opus-4-7 on Anthropic API.
| Metric | Cal.com | Anthropic API |
|---|---|---|
| discount batch | — | 50 % off |
Features
Cal.com · 16 features
- Availability — Multiple schedules per user.
- Buffer Time — Padding between meetings.
- Cal Video — Built-in video conferencing.
- Embed — Inline/popup/floating-button embeds.
- Event Types — One-on-one, group, collective, round-robin.
- Insights Dashboard — Booking trends + team analytics.
- Paid Bookings — Stripe integration for paid appointments.
- Platform API — Embed scheduling in your SaaS.
- Recurring Events — Weekly/monthly recurring bookings.
- Round-Robin — Distribute bookings across team.
- Routing Forms — Route leads by answers.
- Self-Host — Deploy to your infra.
- SSO — SAML + OIDC.
- Timezone Detection — Auto-detect viewer timezone.
- Webhooks — Outbound events.
- Workflows — Automated email/SMS reminders.
Anthropic API · 0 features
Developer interfaces
| Kind | Cal.com | Anthropic API |
|---|---|---|
| CLI | cal CLI (self-host) | Claude Code CLI |
| SDK | @calcom/embed-react | Go SDK, Java SDK, Python SDK, Ruby SDK, TypeScript SDK (@anthropic-ai/sdk) |
| REST | Cal.com REST API v2, Platform API (embed in SaaS) | AWS Bedrock, Google Vertex AI, Microsoft Azure AI, REST API (Messages + Agents) |
| OTHER | Cal.com Dashboard, Cal.com Webhooks | — |
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