# Siena Society (remote · sienasociety.com)

Find Siena friendship dinners in London: upcoming Thursdays, how it works, and the booking link.

- Trust score: 76/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `sienasociety.com`: 76/100 (this document), [markdown](https://verifymcp.io/servers/com-sienasociety-siena/sienasociety.md), [page](https://verifymcp.io/servers/com-sienasociety-siena/sienasociety)

## Channel facts

- Endpoint: `https://sienasociety.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Endpoint Security**: 83/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC is configured correctly; the domain's records validate against the full chain to the root.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 76/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 697 tokens (~139/item across 5 items; 5 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 10/100
  - Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Siena Society MCP server?

Siena Society is a hosted endpoint at https://sienasociety.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http com-sienasociety-siena 'https://sienasociety.com/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-sienasociety-siena": {
      "url": "https://sienasociety.com/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-sienasociety-siena": {
      "type": "http",
      "url": "https://sienasociety.com/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-sienasociety-siena]
url = "https://sienasociety.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-sienasociety-siena": {
      "type": "remote",
      "url": "https://sienasociety.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-sienasociety-siena --url 'https://sienasociety.com/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-sienasociety-siena:
    url: "https://sienasociety.com/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-sienasociety-siena": {
      "Transport": "http",
      "Url": "https://sienasociety.com/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-sienasociety-siena -t streamable-http -u 'https://sienasociety.com/mcp'
```

### Other

```json
{
  "mcpServers": {
    "com-sienasociety-siena": {
      "type": "http",
      "url": "https://sienasociety.com/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-04 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-03 (score 75, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-11-02 (score 75)

First indexed and scored.

## MCP tools (5)

### `list_cities` (~32 tokens)

List Siena cities

Lists the cities where Siena runs friendship dinners, with the dinner night and time. Siena runs in London only today.

Output parameters:

- `cities` (array)
- `note` (string)

### `list_upcoming_dinners` (~189 tokens)

List upcoming Siena dinners

Lists upcoming Siena friendship dinners in a city between two dates, and says which ones are open to book. Siena holds one dinner a week, on Thursday at 7:30pm London time, for small groups of strangers who want to make friends. A few holiday Thursdays have no dinner, and the list leaves them out. Booking for a Thursday opens on the Wednesday two weeks before and closes on the Tuesday before at 23:59. With no dates, the tool lists the next 4 Thursdays. It lists up to 12 weeks ahead.

Input parameters:

- `city` (string): City name or id. Only "London" has dinners. Defaults to London.
- `from` (string): First date to include, yyyy-mm-dd, London time. Defaults to today.
- `to`: Last date to include, yyyy-mm-dd, London time. Defaults to 4 weeks after from.

Output parameters:

- `city` (string)
- `dinners` (array)
- `every_dinner` (object): Facts that are the same for every dinner.
- `from` (string)
- `message` (string)
- `to` (string)

### `get_dinner` (~97 tokens)

Get a Siena dinner

Gets one Siena dinner in full: date and time, where it happens, table size, seat price, the booking window and the cancellation rule. The restaurant stays private until Siena emails it on the Wednesday before.

Input parameters:

- `dinner_id` (string, required): The dinner id from list_upcoming_dinners, for example "london-2026-11-05". A Thursday date such as "2026-11-05" also works.

Output parameters:

- `dinner` (object)
- `next_step` (string)

### `how_it_works` (~43 tokens)

How Siena works

Explains how Siena friendship dinners work: sign-up, matching, the Wednesday email, the seat price and Premium, cancellation and refunds, and links to the policies.

Output parameters:

- `city` (string)
- `contact` (string)
- `links` (object)
- `matching` (string)
- `policies` (object)
- `price` (object)
- `steps` (array)
- `summary` (string)
- `table_size` (string)

### `start_booking` (~117 tokens)

Start a Siena booking

Returns the link where the person books a seat at a Siena dinner on sienasociety.com. It books nothing and charges nothing. On the website the person signs up or signs in, answers six short questions the first time, and pays for the seat. Never ask for card details or personal data in chat.

Input parameters:

- `dinner_id` (string, required): The dinner id from list_upcoming_dinners, for example "london-2026-11-05". A Thursday date such as "2026-11-05" also works.

Output parameters:

- `booking_status` (string): open: a seat can be booked now. not_open_yet: booking opens on the Wednesday two weeks before. closed: booking closed on the Tuesday before.
- `booking_url` (string|null): Null when the dinner is not open to book.
- `dinner_id` (string)
- `message` (string)
- `when` (string)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-sienasociety-siena/sienasociety#diagnostics

## Score history

- 2026-11-05: 76
- 2026-11-04: 76
- 2026-11-03: 75
- 2026-11-02: 75

## Common questions

### What is the Siena Society MCP server?

Siena Society is an MCP server listed in the public MCP registry as com.sienasociety/siena. Find Siena friendship dinners in London: upcoming Thursdays, how it works, and the booking link. This page covers its hosted endpoint (https://sienasociety.com/mcp).

### Is the Siena Society MCP server safe to use?

Siena Society scores 76 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Siena Society MCP server expose?

Siena Society exposes 5 tools: list_cities, list_upcoming_dinners, get_dinner, how_it_works, start_booking. Their descriptions and schemas cost roughly 478 tokens of context every time the server is loaded.

### Does the Siena Society MCP server require authentication?

No. We connected to Siena Society without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Siena Society MCP server still maintained?

Siena Society is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://sienasociety.com/mcp
- Website: https://sienasociety.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-sienasociety-siena/sienasociety.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-sienasociety-siena/sienasociety.json
- HTML version of this page: https://verifymcp.io/servers/com-sienasociety-siena/sienasociety