# 黑123 Hackathons (remote · hack123.henryht.sh)

Read-only search of hackathons, team-up posts and projects on 黑123 (hack123.henryht.sh), zh/en.

- Trust score: 80/100 (high trust)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `hack123.henryht.sh`: 80/100 (this document), [markdown](https://verifymcp.io/servers/onehumanbeing-hack123/api-mcp.md), [page](https://verifymcp.io/servers/onehumanbeing-hack123/api-mcp)

## Channel facts

- Endpoint: `https://hack123.henryht.sh/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 2026-11-05.

- **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**: 65/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 522 tokens (~130/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**: 73/100
  - Stability observed for 22 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 91/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 72% 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 黑123 Hackathons MCP server?

黑123 Hackathons is a hosted endpoint at https://hack123.henryht.sh/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 onehumanbeing-hack123 'https://hack123.henryht.sh/api/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "onehumanbeing-hack123": {
      "url": "https://hack123.henryht.sh/api/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "onehumanbeing-hack123": {
      "type": "http",
      "url": "https://hack123.henryht.sh/api/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.onehumanbeing-hack123]
url = "https://hack123.henryht.sh/api/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "onehumanbeing-hack123": {
      "type": "remote",
      "url": "https://hack123.henryht.sh/api/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add onehumanbeing-hack123 --url 'https://hack123.henryht.sh/api/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  onehumanbeing-hack123:
    url: "https://hack123.henryht.sh/api/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "onehumanbeing-hack123": {
      "Transport": "http",
      "Url": "https://hack123.henryht.sh/api/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add onehumanbeing-hack123 -t streamable-http -u 'https://hack123.henryht.sh/api/mcp'
```

### Other

```json
{
  "mcpServers": {
    "onehumanbeing-hack123": {
      "type": "http",
      "url": "https://hack123.henryht.sh/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.

### 2026-11-05 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-03 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-28 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-25 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-23 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-21 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (4)

### `search_hackathons` (~218 tokens)

搜索黑客松 / Search hackathons

Search hackathons listed on 黑123 (hack123.henryht.sh). Bilingual (zh/en) fields; every result has its site URL. status: upcoming = start date in the future, open = deadline today or later, ended = deadline passed (dates in UTC, YYYY-MM-DD).

Input parameters:

- `city` (string): City name in Chinese or English, e.g. 上海 / Shanghai
- `from` (string): Earliest date (YYYY-MM-DD); matches events whose start or deadline is on/after it
- `limit` (integer)
- `online` (boolean): true = online only; false = offline/hybrid only
- `query` (string): Keywords matched against titles, aliases, summaries, topics, cities (zh or en)
- `status` (string)
- `theme` (string): Topic, e.g. AI / Web3 / 具身智能
- `to` (string): Latest date (YYYY-MM-DD); matches events whose start or deadline is on/before it

### `get_hackathon` (~49 tokens)

黑客松详情 / Get hackathon

Get one hackathon by slug (the part after /h/ in the site URL), with bilingual details, official sources, related works and active team posts.

Input parameters:

- `slug` (string, required)

### `search_team_posts` (~115 tokens)

找队友帖 / Search team-up posts

Search active team-up (looking for teammates) posts from 黑123 /team. Expired posts are excluded with the same rule as the site.

Input parameters:

- `city` (string): Location, zh or en, e.g. 北京 / Beijing / 线上
- `hackathon` (string): Hackathon slug or name (zh/en)
- `limit` (integer)
- `query` (string): Free-text keywords
- `role` (string): Wanted role, e.g. 前端 / 设计 / 算法

### `search_works` (~100 tokens)

搜索作品 / Search works

Search hackathon projects (works) collected on 黑123 /works, by hackathon and/or tag. Tags are bilingual, e.g. agent / Agent, education / 教育学习, web / 网页应用.

Input parameters:

- `hackathon` (string): Hackathon slug or name (zh/en)
- `limit` (integer)
- `query` (string): Free-text keywords
- `tag` (string): Tag key or name in zh/en

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/onehumanbeing-hack123/api-mcp#diagnostics

## Score history

- 2026-11-05: 80
- 2026-11-04: 79
- 2026-11-03: 79
- 2026-11-02: 78
- 2026-11-01: 78
- 2026-10-31: 77
- 2026-10-30: 77
- 2026-10-29: 76
- 2026-10-28: 76
- 2026-10-27: 75
- 2026-10-26: 75
- 2026-10-25: 75
- 2026-10-24: 74
- 2026-10-23: 74
- 2026-10-22: 73
- 2026-10-21: 73
- 2026-10-20: 72
- 2026-10-19: 72
- 2026-10-18: 71
- 2026-10-17: 71
- 2026-10-16: 70
- 2026-10-15: 70
- 2026-10-14: 69

## Common questions

### What is the 黑123 Hackathons MCP server?

黑123 Hackathons is an MCP server listed in the public MCP registry as io.github.onehumanbeing/hack123. Read-only search of hackathons, team-up posts and projects on 黑123 (hack123.henryht.sh), zh/en. This page covers its hosted endpoint (https://hack123.henryht.sh/api/mcp).

### Is the 黑123 Hackathons MCP server safe to use?

黑123 Hackathons scores 80 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 黑123 Hackathons MCP server expose?

黑123 Hackathons exposes 4 tools: search_hackathons, get_hackathon, search_team_posts, search_works. Their descriptions and schemas cost roughly 482 tokens of context every time the server is loaded.

### Does the 黑123 Hackathons MCP server require authentication?

No. We connected to 黑123 Hackathons without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the 黑123 Hackathons MCP server still maintained?

黑123 Hackathons 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://hack123.henryht.sh/api/mcp
- Repository: https://github.com/HenryAgentTeam/hack123
- Website: https://hack123.henryht.sh/about#mcp
- Changelog RSS feed: https://verifymcp.io/servers/onehumanbeing-hack123/api-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/onehumanbeing-hack123/api-mcp.json
- HTML version of this page: https://verifymcp.io/servers/onehumanbeing-hack123/api-mcp