# Arclight Events (remote · arclight.events)

Live events in 50 cities: AI/tech meetups, hackathons, conferences, concerts. Free, read-only.

- Trust score: 76/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-25

## Components

- remote · `arclight.events`: 76/100 (this document), [markdown](https://verifymcp.io/servers/events-arclight-mcp/api-mcp.md), [page](https://verifymcp.io/servers/events-arclight-mcp/api-mcp)

## Channel facts

- Endpoint: `https://arclight.events/api/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 2026-09-25.

- **Endpoint Security**: 80/100
  - 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 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**: 77/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 673 tokens (~168/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 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.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the Arclight Events MCP server?

Arclight Events is a hosted endpoint at https://arclight.events/api/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 events-arclight-mcp 'https://arclight.events/api/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "events-arclight-mcp": {
      "url": "https://arclight.events/api/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "events-arclight-mcp": {
      "type": "http",
      "url": "https://arclight.events/api/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.events-arclight-mcp]
url = "https://arclight.events/api/mcp"
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add events-arclight-mcp --url 'https://arclight.events/api/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  events-arclight-mcp:
    url: "https://arclight.events/api/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "events-arclight-mcp": {
      "Transport": "http",
      "Url": "https://arclight.events/api/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add events-arclight-mcp -t streamable-http -u 'https://arclight.events/api/mcp'
```

### Other

```json
{
  "mcpServers": {
    "events-arclight-mcp": {
      "type": "http",
      "url": "https://arclight.events/api/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.

### 2026-09-25 (score 76, +1)

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

### 2026-09-22 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-20 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 73, +2)

- [functional regression] Schema quality: 138 → 168
- [functional improvement] Tool coverage: 67% → 100%
- [functional improvement] Stability: unverified → 0.03
- [cosmetic] “arclight_city_picks” reworded the description of “limit”
- [cosmetic] “arclight_search_events” reworded the description of “limit”
- [cosmetic] “arclight_search_events” reworded the description of “offset”
- [cosmetic] “arclight_search_events” reworded the description of “timeframe”

### 2026-09-17 (score 71)

First indexed and scored.

## MCP tools (4)

### `arclight_search_events` (~254 tokens)

Search live events by city

Search real, upcoming events in a city, optionally narrowed to a topic and timeframe. Every event is aggregated from a live source (Luma, Ticketmaster, SeatGeek, Skiddle, confs.tech and others) and links back to it — Arclight never invents listings and holds no tickets. Read-only. Returns paginated results with has_more/next_offset.

Input parameters:

- `city` (string, required): City slug or name, e.g. "san-francisco". See arclight_list_cities.
- `limit` (integer): How many events to return in one call. Pair with offset to page.
- `offset` (integer): How many events to skip, for paging. Pass the next_offset from the previous response rather than computing it; when has_more is false there is nothing left to fetch. Offset applies within the chosen…
- `response_format` (string): Output format. 'markdown' to read back to a person, 'json' to compute over.
- `timeframe` (string): How far ahead to look, measured from now. Past events are never returned.
- `topic` (string): Optional topic filter.

### `arclight_get_event` (~106 tokens)

Get one event by slug

Fetch the full detail of one event by its Arclight slug (or its arclight.events URL): title, start time in the venue's own timezone, price, tags, description and the source link. Read-only.

Input parameters:

- `response_format` (string): Output format. 'markdown' to read back to a person, 'json' to compute over.
- `slug` (string, required): Event slug, or the full arclight.events/event/<slug> URL.

### `arclight_city_picks` (~141 tokens)

Get curated picks for a city

A small curated set of events worth going to in a city over the next few days, chosen for variety rather than raw recency. Use when someone asks what is worth doing rather than for an exhaustive list. Read-only.

Input parameters:

- `city` (string, required): City slug or name.
- `limit` (integer): How many picks to return. Capped at 10 on purpose — this is a curated shortlist chosen for variety, not a search. Use arclight_search_events when an exhaustive list is wanted.
- `response_format` (string): Output format. 'markdown' to read back to a person, 'json' to compute over.

### `arclight_list_cities` (~81 tokens)

List covered cities and topics

List every metro Arclight covers, with the slug to pass to the other tools, plus the available topic filters. Call this first when unsure whether a city is covered. Read-only, no arguments required.

Input parameters:

- `response_format` (string): Output format. 'markdown' to read back to a person, 'json' to compute over.

## Diagnostics

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

## Score history

- 2026-09-25: 76
- 2026-09-24: 75
- 2026-09-23: 75
- 2026-09-22: 75
- 2026-09-21: 74
- 2026-09-20: 74
- 2026-09-19: 73
- 2026-09-18: 73
- 2026-09-17: 71

## Common questions

### What is the Arclight Events MCP server?

Arclight Events is an MCP server listed in the public MCP registry as events.arclight/mcp. Live events in 50 cities: AI/tech meetups, hackathons, conferences, concerts. Free, read-only. This page covers its hosted endpoint (https://arclight.events/api/mcp).

### Is the Arclight Events MCP server safe to use?

Arclight Events 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 Arclight Events MCP server expose?

Arclight Events exposes 4 tools: arclight_search_events, arclight_get_event, arclight_city_picks, arclight_list_cities. Their descriptions and schemas cost roughly 582 tokens of context every time the server is loaded.

### Does the Arclight Events MCP server require authentication?

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

### Is the Arclight Events MCP server still maintained?

Arclight Events is still listed as active in the MCP registry. We last reached this channel on 25 September 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://arclight.events/api/mcp
- Website: https://arclight.events/mcp
- Changelog RSS feed: https://verifymcp.io/servers/events-arclight-mcp/api-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/events-arclight-mcp/api-mcp.json
- HTML version of this page: https://verifymcp.io/servers/events-arclight-mcp/api-mcp