---
ref: tool:calendly/list-available-times
name: List available times
company: company:calendly
workflows: []
access: [mcp, api]
tags: [capability:book-meetings, category:scheduling, has:api, has:mcp]
docs: https://developer.calendly.com/api-docs/calendly-api/event-types/list-event-type-available-times
updated: 2026-09-27
---

# List available times

Returns the open start times of one event type within a range of up to 31 days, each with its booking page URL.

Pass the `event_type` URI, `start_time` and `end_time`. The range can't
start in the past or span more than 31 days, and the results aren't
paginated. Offer the prospect a few of the returned times, then book the
chosen one with `meetings-create_invitee` or `POST /invitees`.

## Set up

Use the first option your agent supports.

### MCP (official, remote)

Add this server to your agent's MCP settings, then sign in when asked.

```json
{ "mcpServers": { "calendly": { "url": "https://mcp.calendly.com" } } }
```

Call the MCP tool `event_types-list_event_type_available_times`.

Server URL: https://mcp.calendly.com

### API (official)

- Base URL: https://api.calendly.com
- Endpoint: `GET /event_type_available_times`
- Auth: send the header `Authorization: Bearer $CALENDLY_API_KEY`
- Get a key: https://calendly.com/integrations/api_webhooks
- Docs: https://developer.calendly.com/api-docs/overview/api/reference

Before doing anything else, make one read-only call to confirm access.

## Rules

- Ask the user before anything that sends messages, costs money, or changes data.
- Never print API keys.