# Clio Calendar Entries API

**Canonical:** https://apis.io/apis/clio/clio-calendar-entries-api/  
**Provider:** Clio — https://apis.io/providers/clio/  
**Base URL:** https://app.clio.com/api/v4  
**Documentation:** https://docs.developers.clio.com/

Clio Calendar Entries API is one of 85 APIs that [Clio](https://apis.io/providers/clio/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Calendar Entries. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, and authentication docs.

Calendar Entries are used to track appointments or deadlines. Users can view Calendar Entries on any Calendar that they have “Viewer” or “Editor” permission for. Users can create Calendar Entries on any Calendar that they have “Editor” permission for. ### Only supports dates on or after January 01 1900 00:00 UTC * If you attempt to create a date before 1900, the year of that date will be pulled forward to 1900 before it's persisted. ### Calendar Update/Deletion Best Practices * Prior to updating or deleting a calendar entry, check for recurrence. * If the recurrence_rule parameter is not equal to `null`, offer the following 3 options for the update/deletion, as well as the note: 1. Only this instance: Update/Delete this event, but leave all future events unchanged. 2. All following: Updates/Deletes this event and all the future events. 3. All events in the series: Updates/Deletes all events in the series. * Note: If you've modified any future events in this series, those edits will be lost once you make this change. [Support Link](https://help.clio.com/hc/en-us/articles/9289905071387-Calendar-Events)

## Machine-readable artifacts (5)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/clio/refs/heads/main/openapi/clio-calendar-entries-api-openapi.yml
- **Documentation** — https://docs.developers.clio.com/
- **Reference** — https://docs.developers.clio.com/api-docs/
- **Authentication** — https://app.clio.com/oauth/authorize
- **GraphQL** — https://raw.githubusercontent.com/api-evangelist/clio/refs/heads/main/graphql/clio-graphql.md

## Other Clio APIs (12)

- [Clio Webhooks](https://apis.io/apis/clio/webhooks/)
- [Clio App Directory](https://apis.io/apis/clio/app-directory/)
- [Clio Activities API](https://apis.io/apis/clio/clio-activities-api/)
- [Clio Activity Descriptions API](https://apis.io/apis/clio/clio-activity-descriptions-api/)
- [Clio Activity Rates API](https://apis.io/apis/clio/clio-activity-rates-api/)
- [Clio Allocations API](https://apis.io/apis/clio/clio-allocations-api/)
- [Clio Bank Accounts API](https://apis.io/apis/clio/clio-bank-accounts-api/)
- [Clio Bank Transactions API](https://apis.io/apis/clio/clio-bank-transactions-api/)
- [Clio Bank Transfers API](https://apis.io/apis/clio/clio-bank-transfers-api/)
- [Clio Bill Themes API](https://apis.io/apis/clio/clio-bill-themes-api/)
- [Clio Billable Clients API](https://apis.io/apis/clio/clio-billable-clients-api/)
- [Clio Billable Matters API](https://apis.io/apis/clio/clio-billable-matters-api/)

## Tags

Calendar Entries

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/clio/clio-calendar-entries-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/clio/.