# Callendar

> Use this tool when you need to automate Calendly-based appointment reminders and rescheduling through WhatsApp, solving issues of manual follow-up and no-shows by integrating booking information retrieval and workflow triggering. It takes in Calendly booking data as input and outputs WhatsApp reminders and rescheduling updates, all through a public read-only MCP endpoint. Ideal for use cases requiring seamless communication between Calendly and WhatsApp for efficient appointment management.

Canonical page: https://skillsregistry.net/skills/callendar  
JSON: https://api.skillsregistry.net/v1/skills/callendar

## Description

Callendar enables AI agents to manage Calendly-based appointment reminders and rescheduling through WhatsApp. The integration exposes a public read-only MCP endpoint allowing agents to retrieve booking information and trigger WhatsApp reminder workflows without authentication.

## Trust

- **Trust score (0–1):** 0.30
- **Verification tier:** unverified
- **Last scanned:** 2026-09-01

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** communication
- **Updated:** 2026-09-01

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/callendar)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "callendar"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/callendar` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/callendar/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt