# io.github.nexus-mcp-infra/npm-package-ws-has-241560546-weekly-downloads-but-sdk (remote · npm-package-ws-has-241560546-w-production.up.railway.app)

Stateful WebSocket session registry with per-connection Shannon entropy delta tracking for schema di

- Trust score: 66/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `npm-package-ws-has-241560546-w-production.up.railway.app`: 66/100 (this document), [markdown](https://verifymcp.io/servers/nexus-mcp-infra-npm-package-ws-has-241560546-weekly-downloads-but-sdk/npm-package-ws-has-241560546-w-production.md), [page](https://verifymcp.io/servers/nexus-mcp-infra-npm-package-ws-has-241560546-weekly-downloads-but-sdk/npm-package-ws-has-241560546-w-production)

## Channel facts

- Endpoint: `https://npm-package-ws-has-241560546-w-production.up.railway.app/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 2026-08-03.

- **Endpoint Security**: 57/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 5 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - 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**: 73/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 705 tokens (~141/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**: 23/100
  - Stability observed for 7 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.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http nexus-mcp-infra-npm-package-ws-has-241560546-wee https://npm-package-ws-has-241560546-w-production.up.railway.app/mcp
```

### Codex

```toml
[mcp_servers.nexus-mcp-infra-npm-package-ws-has-241560546-wee]
url = "https://npm-package-ws-has-241560546-w-production.up.railway.app/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "nexus-mcp-infra-npm-package-ws-has-241560546-wee": {
      "type": "remote",
      "url": "https://npm-package-ws-has-241560546-w-production.up.railway.app/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add nexus-mcp-infra-npm-package-ws-has-241560546-wee --url https://npm-package-ws-has-241560546-w-production.up.railway.app/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  nexus-mcp-infra-npm-package-ws-has-241560546-wee:
    url: "https://npm-package-ws-has-241560546-w-production.up.railway.app/mcp"
```

### Other

```json
{
  "mcpServers": {
    "nexus-mcp-infra-npm-package-ws-has-241560546-wee": {
      "type": "http",
      "url": "https://npm-package-ws-has-241560546-w-production.up.railway.app/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.

### 2026-08-03 (score 66, +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.

### 2026-08-01 (score 65, +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.

### 2026-07-31 (score 64, −1)

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

### 2026-07-30 (score 65, +1)

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

### 2026-07-29 (score 64, +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.

### 2026-07-28 (score 63, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-07-27 (score 63)

First indexed and scored.

## MCP tools (5)

### `nexus_npm_package_ws_has_241560546_weekly_down_open_websocket_session` (~142 tokens)

Establishes a persistent WebSocket connection to a target URL and registers it in the stateful session registry. Returns a session_id for all subsequent operations. Use when an agent needs to initiate a long-lived connection before sending or receiving frames. Do NOT use to reconnect an already-open session -- call close_websocket_session first, or use the session_id of an existing session.

Input parameters:

- `connect_timeout_seconds` (number): Maximum seconds to wait for the WebSocket handshake to complete.
- `target_url` (string, required): Full WebSocket URL to connect to (must start with ws:// or wss://).

### `nexus_npm_package_ws_has_241560546_weekly_down_send_typed_ws_frame` (~169 tokens)

Sends a single text or binary frame over an open session and returns the frame's Shannon entropy delta relative to the session baseline. Use for request-response patterns or publishing commands to a WebSocket server. Do NOT use to send a sequence of frames in bulk -- call this tool once per frame. Fails if session_id does not exist or connection is not in OPEN state.

Input parameters:

- `frame_type` (string): Either 'text' or 'binary'. Determines wire encoding.
- `payload` (string, required): Frame payload. For binary frames, encode as hex and set frame_type to 'binary'.
- `session_id` (string, required): 32-character session id (uuid4 hex, no dashes) returned by open_websocket_session.

### `nexus_npm_package_ws_has_241560546_weekly_down_drain_ws_frame_buffer` (~123 tokens)

Returns up to max_frames buffered inbound frames received since the last drain (or session open), each annotated with its Shannon entropy delta and schema validation result. Use to poll for incoming messages without holding a blocking connection. Do NOT use as a real-time streaming mechanism -- it returns only frames already buffered.

Input parameters:

- `max_frames` (number): Maximum number of buffered frames to return in a single call.
- `session_id` (string, required): 32-character session id of the open session to drain frames from.

### `nexus_npm_package_ws_has_241560546_weekly_down_inspect_ws_session_telemetry` (~110 tokens)

Returns real-time telemetry for a session: connection state, frame counts, cumulative and rolling Shannon entropy statistics, schema violation rate, and uptime. Use to diagnose whether a stream is diverging from its expected schema or to verify a session is still alive before sending. Do NOT use as the primary liveness check in a tight loop.

Input parameters:

- `session_id` (string, required): 32-character session id of the session to inspect.

### `nexus_npm_package_ws_has_241560546_weekly_down_close_websocket_session` (~161 tokens)

Sends a WebSocket close frame with the specified status code, waits for the server close handshake, and removes the session from the registry. Returns a final telemetry snapshot. Use when a session is no longer needed. Do NOT use to temporarily pause a session -- the session_id is permanently deallocated after this call and cannot be reused.

Input parameters:

- `reason` (string): Optional UTF-8 close reason string, max 123 bytes per RFC 6455.
- `session_id` (string, required): 32-character session id of the session to close.
- `status_code` (number): WebSocket close status code per RFC 6455 (1000-4999). Defaults to 1000.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/nexus-mcp-infra-npm-package-ws-has-241560546-weekly-downloads-but-sdk/npm-package-ws-has-241560546-w-production#diagnostics

## Score history

- 2026-08-03: 66
- 2026-08-02: 65
- 2026-08-01: 65
- 2026-07-31: 64
- 2026-07-30: 65
- 2026-07-29: 64
- 2026-07-28: 63
- 2026-07-27: 63

## Links

- Remote endpoint: https://npm-package-ws-has-241560546-w-production.up.railway.app/mcp
- Repository: https://github.com/nexus-mcp-infra/npm-package-ws-has-241560546-weekly-downloads-but-sdk
- Changelog RSS feed: https://verifymcp.io/servers/nexus-mcp-infra-npm-package-ws-has-241560546-weekly-downloads-but-sdk/npm-package-ws-has-241560546-w-production/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/nexus-mcp-infra-npm-package-ws-has-241560546-weekly-downloads-but-sdk/npm-package-ws-has-241560546-w-production/changelog.json
- HTML version of this page: https://verifymcp.io/servers/nexus-mcp-infra-npm-package-ws-has-241560546-weekly-downloads-but-sdk/npm-package-ws-has-241560546-w-production