Casper Tools
19 zero-setup utilities: JSON, regex, cron, hash, base64, CSV, JWT, UUID, YAML, semver, time.
Open source Repository Open in the app JSON README (API)
About
19 zero-setup utilities: JSON, regex, cron, hash, base64, CSV, JWT, UUID, YAML, semver, time.
Details
- Kind
- MCP servers
- Topic
- Files & documents
- Publisher
- magiautonomous
- Origin
- official
- Category
- ferramentas
- Transport
- http
- Version
- 1.4.0
- Last push
- 2026-09-05T03:10:09Z
- Repository state
- ativo
- Language
- JavaScript
- License
- MIT
- Added
- 2026-09-04 21:00:53
- Updated
- 2026-09-07 16:08:36
- Origin id
io.github.magiautonomous/casper-tools
README
# Casper Tools — MCP server (8 agent utilities)
[](https://glama.ai/mcp/servers/magiautonomous/casper-tools)
A Model Context Protocol (MCP) server exposing 8 small, fast, dependency-light
utilities that AI agents reach for constantly: JSON inspection, regex testing,
cron parsing, hashing, base64 encoding/decoding, URL analysis, color
conversion, and text diffing.
**Transport:** Streamable HTTP. **Auth:** none (open public endpoint). **No API
keys.** Free to use.
## Live endpoint
```
https://virtue-hardly-skills-calling.trycloudflare.com/mcp
```
## Tools
| Tool | What it does |
|-----------------|-----------------------------------------------|
| `json_inspect` | Parse, validate and summarize JSON documents |
| `regex_test` | Test regex patterns against sample strings |
| `cron_parse` | Parse/explain cron schedule expressions |
| `hash_compute` | Compute MD5/SHA-1/SHA-256 hashes |
| `base64_encode` | Base64 encode/decode text and bytes |
| `url_analyze` | Normalize, validate and decompose URLs |
| `color_convert` | Convert between hex/rgb/hsl color formats |
| `text_diff` | Unified diff between two strings/texts |
## Install
Claude Code / Cursor / any MCP client:
```json
{
"mcpServers": {
"casper-tools": {
"command": "npx",
"args": ["-y", "casper-tools"]
}
}
}
```
For the hosted remote server, add a connection to the live endpoint above
(streamable HTTP, no credentials).
## Operation
`npm install && npm start` runs the server on port 3000 at `/mcp` (or via any
MCP client pointed at a stdio/`npx` launch).
## Repo
Source lives in this repository. Published to the official MCP Registry as
`io.github.magiautonomous/casper-tools`. MIT licensed.