# io.github.ofershap/devutils (npm · mcp-server-devutils)

Developer utilities MCP: base64, UUID, hash, JWT decode, cron, timestamps.

- Trust score: 68/100 (medium)
- Change this week: +44
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `mcp-server-devutils`: 68/100 (this document), [markdown](https://verifymcp.io/servers/ofershap-devutils/mcp-server-devutils.md), [page](https://verifymcp.io/servers/ofershap-devutils/mcp-server-devutils)

## Channel facts

- Registry: `npm`
- Package: `mcp-server-devutils`
- Version: `1.0.2`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, 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.

- **Supply Chain Security**: 87/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 145 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 71/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 570 tokens (~33/item across 17 items; 17 tools + 0 resources), lean.
  - 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.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add ofershap-devutils -- npx -y mcp-server-devutils
```

### Codex

```bash
codex mcp add ofershap-devutils -- npx -y mcp-server-devutils
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ofershap-devutils": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "mcp-server-devutils"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add ofershap-devutils --command npx --arg -y --arg mcp-server-devutils
```

### Hermes

```yaml
mcp_servers:
  ofershap-devutils:
    command: "npx"
    args: ["-y", "mcp-server-devutils"]
```

### Other

```json
{
  "mcpServers": {
    "ofershap-devutils": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-server-devutils"
      ]
    }
  }
}
```

## 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 68, +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.

### 2026-08-02 (score 67, +46)

- [security regression] Provenance: unverified → fail
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Install scripts: unverified → pass
- [security improvement] Malware scan: unverified → pass
- [functional improvement] Schema quality: unverified → good
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] Stability: unverified → 0.20
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] License: unverified → pass
- [functional] Licence: MIT

### 2026-08-01 (score 21, −7)

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

### 2026-07-31 (score 28, −18)

- [security regression] Malware scan: pass → unverified

### 2026-07-30 (score 46, +19)

- [functional regression] Dependency health: partial → unverified
- [functional improvement] Tool coverage: unverified → 100
- [functional] First check of Schema quality: unverified
- [functional] First check of Schema quality: pass
- [functional] First check of Schema quality: fail
- [functional] First check of Tool coverage: 100

### 2026-07-28 (score 27, +3)

- [functional improvement] Dependency health: unverified → partial

### 2026-07-27 (score 24)

First indexed and scored.

## MCP tools (17)

### `base64_encode` (~27 tokens)

Encode a string to Base64

Input parameters:

- `input` (string, required): The string to encode

### `base64_decode` (~28 tokens)

Decode a Base64 string

Input parameters:

- `input` (string, required): The Base64 string to decode

### `uuid_generate` (~31 tokens)

Generate one or more UUIDs (v4)

Input parameters:

- `count` (integer): Number of UUIDs to generate

### `ulid_generate` (~24 tokens)

Generate a ULID (Universally Unique Lexicographically Sortable Identifier)

### `hash` (~52 tokens)

Hash a string using a specified algorithm. Supported: md5, sha1, sha256, sha384, sha512

Input parameters:

- `algorithm` (string): Hash algorithm
- `input` (string, required): The string to hash

### `hash_all` (~29 tokens)

Hash a string with all supported algorithms at once

Input parameters:

- `input` (string, required): The string to hash

### `jwt_decode` (~36 tokens)

Decode a JWT token (without verification) and show header, payload, expiry

Input parameters:

- `token` (string, required): The JWT token to decode

### `cron_explain` (~43 tokens)

Explain a cron expression in plain English

Input parameters:

- `expression` (string, required): Cron expression (5 fields, e.g. "0 9 * * 1-5")

### `cron_validate` (~24 tokens)

Validate a cron expression

Input parameters:

- `expression` (string, required): Cron expression to validate

### `cron_next` (~41 tokens)

Show the next N run times for a cron expression

Input parameters:

- `count` (integer): Number of next runs to show
- `expression` (string, required): Cron expression

### `timestamp_to_iso` (~34 tokens)

Convert a Unix timestamp to ISO 8601 date string

Input parameters:

- `timestamp` (number, required): Unix timestamp (seconds or milliseconds)

### `iso_to_timestamp` (~34 tokens)

Convert an ISO 8601 date string to Unix timestamp

Input parameters:

- `date` (string, required): ISO 8601 date string

### `timestamp_now` (~16 tokens)

Get the current time in multiple formats

### `json_format` (~37 tokens)

Pretty-print / format a JSON string

Input parameters:

- `indent` (integer): Indent size
- `input` (string, required): JSON string to format

### `json_minify` (~30 tokens)

Minify a JSON string (remove whitespace)

Input parameters:

- `input` (string, required): JSON string to minify

### `json_validate` (~28 tokens)

Validate a JSON string and report its type

Input parameters:

- `input` (string, required): JSON string to validate

### `regex_test` (~56 tokens)

Test a regular expression against a string

Input parameters:

- `flags` (string): Regex flags (e.g. "gi", "gm")
- `pattern` (string, required): Regular expression pattern
- `testString` (string, required): String to test against

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/ofershap-devutils/mcp-server-devutils#diagnostics

## Score history

- 2026-08-03: 68
- 2026-08-02: 67
- 2026-08-01: 21
- 2026-07-31: 28
- 2026-07-30: 46
- 2026-07-28: 27
- 2026-07-27: 24

## Links

- npm package: https://www.npmjs.com/package/mcp-server-devutils
- Socket report: https://socket.dev/npm/package/mcp-server-devutils
- Repository: https://github.com/ofershap/mcp-server-devutils
- Changelog RSS feed: https://verifymcp.io/servers/ofershap-devutils/mcp-server-devutils/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/ofershap-devutils/mcp-server-devutils/changelog.json
- HTML version of this page: https://verifymcp.io/servers/ofershap-devutils/mcp-server-devutils