# Citybook (remote · mcp.citybook.ai)

Live Calgary events for AI agents.

- Trust score: 82/100 (high trust)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `mcp.citybook.ai`: 82/100 (this document), [markdown](https://verifymcp.io/servers/ai-citybook-citybook/mcp.md), [page](https://verifymcp.io/servers/ai-citybook-citybook/mcp)

## Channel facts

- Endpoint: `https://mcp.citybook.ai/mcp`
- Transports: `streamable-http`
- Auth: `required (not validated)`
- 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**: 71/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation is enforced on tool calls, but the challenge carries no valid RFC 9728 metadata, so a client cannot discover where to get a token.
  - HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 67/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 370 tokens (~370/item across 1 items; 1 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 100/100
  - No destabilizing schema changes in the last 30 days.
- **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.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 1 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 1 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 Citybook MCP server?

Citybook is a hosted endpoint at https://mcp.citybook.ai/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 ai-citybook-citybook 'https://mcp.citybook.ai/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "ai-citybook-citybook": {
      "url": "https://mcp.citybook.ai/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "ai-citybook-citybook": {
      "type": "http",
      "url": "https://mcp.citybook.ai/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.ai-citybook-citybook]
url = "https://mcp.citybook.ai/mcp"
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add ai-citybook-citybook --url 'https://mcp.citybook.ai/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  ai-citybook-citybook:
    url: "https://mcp.citybook.ai/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "ai-citybook-citybook": {
      "Transport": "http",
      "Url": "https://mcp.citybook.ai/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add ai-citybook-citybook -t streamable-http -u 'https://mcp.citybook.ai/mcp'
```

### Other

```json
{
  "mcpServers": {
    "ai-citybook-citybook": {
      "type": "http",
      "url": "https://mcp.citybook.ai/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.

### 2026-10-10 (score 82, +2)

- [security] Stability: 0.83 → pass

### 2026-10-03 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-28 (score 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-25 (score 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-10 (score 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-09-09 (score 0)

- [security improvement] Transport: unverified → pass
- [security improvement] Injection markers: unverified → pass
- [security] First check of Judged manipulation: pass
- [security] Authorization: Authorisation is enforced on tool calls, but the challenge carries no valid RFC 9728 metadata, so a client cannot discover where to get a token.
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Tool coverage: unverified → 100
- [functional] First check of Schema quality: fail
- [functional] First check of Schema quality: excellent
- [functional] First check of Destructive annotations: pass
- [functional] First check of Schema quality: fail
- [functional] First check of Tool coverage: 100

### 2026-08-28 (score 0)

First indexed and scored.

## MCP tools (1)

### `fetch_events` (~370 tokens)

Search Events

Find upcoming local events — community programs, markets, festivals, fitness classes, workshops, and entertainment. Filter by city, neighbourhood, sector, date range, and accessibility flags. Returns rich metadata including geo coordinates, images, structured pricing, recurrence, and accessibility info. Connect and list the paid event tool without a Citybook key. Credential-free fetch_events calls require x402 payment; other tools require Bearer authentication.

Input parameters:

- `after` (string): ISO 8601 datetime — only events starting after this time.
- `before` (string): ISO 8601 datetime — only events starting before this time.
- `city` (string, required): City name (e.g. Calgary, Banff)
- `commitment` (string): Filter by engagement type: 'drop_in' (no registration), 'register_required' (single-occurrence event needing RSVP/registration), or 'multi_week_program' (recurring multi-week series like 8-week socce…
- `family_friendly` (boolean): Filter for family-friendly events only.
- `indoor_outdoor` (string): Filter by venue type: 'indoor', 'outdoor', or 'both'.
- `limit` (number): Max results (default 10, max 50)
- `neighbourhood` (string): Neighbourhood within the city
- `offset` (number): Skip first N results for pagination. Default 0.
- `pet_friendly` (boolean): Filter for pet-friendly events only.
- `sector_id` (string): One of: /events/community, /events/government, /events/market, /events/fitness, /events/education, /events/entertainment, /events/tourism
- `since` (string): ISO 8601 datetime — only events submitted after this time. Use for incremental polling.

## Diagnostics

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

## Score history

- 2026-11-05: 82
- 2026-11-04: 82
- 2026-11-03: 82
- 2026-11-02: 82
- 2026-11-01: 82
- 2026-10-31: 82
- 2026-10-30: 82
- 2026-10-29: 82
- 2026-10-28: 82
- 2026-10-27: 82
- 2026-10-26: 82
- 2026-10-25: 82
- 2026-10-24: 82
- 2026-10-23: 82
- 2026-10-22: 82
- 2026-10-21: 82
- 2026-10-20: 82
- 2026-10-19: 82
- 2026-10-18: 82
- 2026-10-17: 82
- 2026-10-16: 82
- 2026-10-15: 82
- 2026-10-14: 82
- 2026-10-13: 82
- 2026-10-12: 82
- 2026-10-11: 82
- 2026-10-10: 82
- 2026-10-04: 80
- 2026-10-03: 80
- 2026-10-02: 79

## Common questions

### What is the Citybook MCP server?

Citybook is an MCP server listed in the public MCP registry as ai.citybook/citybook. Live Calgary events for AI agents. This page covers its hosted endpoint (https://mcp.citybook.ai/mcp).

### Is the Citybook MCP server safe to use?

Citybook scores 82 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 Citybook MCP server expose?

Citybook exposes 1 tool: fetch_events. Their descriptions and schemas cost roughly 370 tokens of context every time the server is loaded.

### Does the Citybook MCP server require authentication?

Yes. Citybook asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.

### Is the Citybook MCP server still maintained?

Citybook 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://mcp.citybook.ai/mcp
- Authorisation metadata: https://mcp.citybook.ai/.well-known/oauth-protected-resource/mcp
- Repository: https://github.com/yeunge-pawlo/citybook
- Website: https://citybook.ai/
- Changelog RSS feed: https://verifymcp.io/servers/ai-citybook-citybook/mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/ai-citybook-citybook/mcp.json
- HTML version of this page: https://verifymcp.io/servers/ai-citybook-citybook/mcp