# AddCal

**Canonical:** https://apis.io/providers/addcal-co/  
**Website:** https://addcal.co/  
**APIs profiled:** 0

AddCal provides a suite of tools that let users create calendar event links, manage RSVPs, and embed calendars on websites. Their platform supports smart links, subscription calendars, and automated email invites, aiming to increase event attendance. The service offers a free tier with unlimited events and paid plans for advanced features, targeting event organizers, marketers, and developers needing seamless calendar integration.

## Kin Score — 18.3 / 100 (emerging)

Scored 2026-11-06 under rubric 0.27.0. Trend: falling (-11.5 from 29.8).

| Facet | Score |
|---|---|
| Discoverability | 48.2 |
| Contract Quality | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 13.2 |
| Developer Ergonomics | 17.9 |
| Access Clarity | 34.2 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 24.0 (matched via fallback).

## Agent readiness — 24.7 (agent-aware)

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

## Access

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

## Security (3)

- **Addcal Co Domain Security** — TLSv1.3 · HSTS · DMARC
- **Addcal Co Vulnerability Disclosure** — security.txt · contact published
- **Addcal Co Trust Center** — SOC 2, PCI DSS, HIPAA, GDPR

## Tags

Calendar, Event Management, Software-as-a-Service, Integration, Productivity, Company

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