# Kamilla English

> Online English lessons with Kamilla Svetlitskaia, one-to-one and in small groups. A 30-minute trial lesson is free and can be booked on this website or by an AI assistant through a public MCP endpoint.

- The trial lesson is free, 30 minutes, one per student, and happens on a video call.
- Booking needs a name, an email address and a start time the server offered. Nothing else.
- Nobody should ever be asked for card details, a password or mailbox access in order to book.
- Rescheduling is not automated: write to Kamilla. Cancelling uses the booking email.
- A short video of Kamilla: https://www.youtube.com/watch?v=6BCPHzVKEm0

## For AI assistants

- MCP endpoint (Streamable HTTP, no authentication): https://api.kamilla-english.pro/mcp
- Bootstrap tools: capabilities.list and capabilities.call
- capabilities.list returns a standard MCP tool list; each entry is an ordinary Tool with its own inputSchema, outputSchema and annotations.
- capabilities.call takes { name, arguments } and returns an ordinary MCP tool result.
- Tools today: trial_lessons.get_availability, trial_lessons.create_booking and trial_lessons.cancel_by_email
- Workflow: list the tools, fetch real slots, let the person choose, confirm, then book with an idempotencyKey.
- Show the real slots, let the person choose, and confirm with them before the booking call.
- Cancelling needs only the email the lesson was booked with. Confirm with the person first; never ask for a code.
- Humans can book on the website or cancel at https://kamilla-english.pro/en/cancel-trial/.

### Example calls

#### list

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "capabilities.list",
    "arguments": {}
  }
}
```

#### availability

```json
{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "capabilities.call",
    "arguments": {
      "name": "trial_lessons.get_availability",
      "arguments": {
        "timezone": "America/Sao_Paulo",
        "from": "2026-09-01T00:00:00.000Z",
        "to": "2026-09-08T00:00:00.000Z"
      }
    }
  }
}
```

#### booking

```json
{
  "jsonrpc": "2.0",
  "id": 3,
  "method": "tools/call",
  "params": {
    "name": "capabilities.call",
    "arguments": {
      "name": "trial_lessons.create_booking",
      "arguments": {
        "startsAtUtc": "2026-09-03T12:00:00.000Z",
        "timezone": "America/Sao_Paulo",
        "locale": "en",
        "student": {
          "name": "Ana Souza",
          "email": "ana@example.com"
        },
        "idempotencyKey": "3f1d5b8e-2c47-4a9b-8f0e-1d6c9a4b7e20"
      }
    }
  }
}
```

#### cancel

```json
{
  "jsonrpc": "2.0",
  "id": 4,
  "method": "tools/call",
  "params": {
    "name": "capabilities.call",
    "arguments": {
      "name": "trial_lessons.cancel_by_email",
      "arguments": {
        "email": "ana@example.com",
        "locale": "en",
        "confirmed": true
      }
    }
  }
}
```


## Lessons

- [Home](https://kamilla-english.pro/en/)
- [Trial lesson](https://kamilla-english.pro/en/trial-lesson/)
- [How lessons work](https://kamilla-english.pro/en/how-lessons-work/)
- [Individual lessons](https://kamilla-english.pro/en/individual-lessons/)
- [Mini-groups](https://kamilla-english.pro/en/group-lessons/)
- [Corporate classes](https://kamilla-english.pro/en/corporate-classes/)
- [About the teacher](https://kamilla-english.pro/en/about/)

## Policy

- [Cancellation](https://kamilla-english.pro/en/booking-terms/)
- [Privacy](https://kamilla-english.pro/en/privacy/)