Quickhelp
About
# quickhelp.dev — 15 free developer tools, each with a UI, API, and MCP server > Every tool runs in your browser, exposes a REST API, and is wired into a single MCP server so AI agents and humans get first-class access without any sign-up. **Live:** [quickhelp.dev](https://quickhelp.dev) · **API:**…
Explore
- 15 tools in one MCP server, no extra wiring needed for each
- Privacy-first: image processing runs locally in the browser via WebAssembly
- No authentication, no database, no LLM calls — all tools are stateless
- Free forever tier: anonymous use with watermarked output (30 req/60s)
- Three interfaces per tool: browser UI, REST API, and MCP
- Single OpenAPI spec, single MCP endpoint, and single llms.txt for agent discovery
Setting up with Highlight
This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:
- Download and install Highlight from highlightai.com/download
- Navigate to the plugins tab and select "Add Custom Plugin"
-
Configure the plugin with the settings below
Plugin Name
QuickhelpCommand (node, npx, python, etc.)Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
- Enable "Start Automatically" if you want the plugin to start when Highlight launches
From the repository
> Every tool runs in your browser, exposes a REST API, and is wired into a single MCP server so AI agents and humans get first-class access without any sign-up.
Live: quickhelp.dev · API: quickhelp.dev/openapi.json · MCP: quickhelp.dev/mcp
---
```bash
| Tool | UI | API endpoint |
|---|---|---|
| JWT Decoder | /jwt-decoder | POST /api/jwt-decoder |
| JSON Formatter | /json-formatter | POST /api/json-formatter |
| Base64 Encoder / Decoder | /base64 | POST /api/base64 |
| Image Converter | /image-converter | POST /api/image-converter |
| Image Resizer | /image-resizer | POST /api/image-resizer |
| Background Remover | /background-remover | POST /api/background-remover |
| Hash Generator | /hash-generator | POST /api/hash-generator |
| UUID Generator | /uuid-generator | POST /api/uuid-generator |
| URL Encoder / Decoder | /url-encoder | POST /api/url-encoder |
| Timestamp Converter | /timestamp-converter | POST /api/timestamp-converter |
| JSON to CSV | /json-to-csv | POST /api/json-to-csv |
| Text Case Converter | /text-case-converter | POST /api/text-case-converter |
| Color Converter | /color-converter | POST /api/color-converter |
| Number Base Converter | /number-base-converter | POST /api/number-base-converter |
| LCOV Viewer | /lcov-viewer | POST /api/lcov-viewer |
---
Claude Desktop / Cursor
Paste into your MCP client config file to install this server.
{
"mcpServers": {
"quickhelp": {
"quickhelp": {
"command": "npx",
"args": [
"-y",
"quickhelp-mcp"
]
}
}
}
}McpServers
{
"quickhelp": {
"command": "npx",
"args": [
"-y",
"quickhelp-mcp"
]
}
}> Every tool runs in your browser, exposes a REST API, and is wired into a single MCP server so AI agents and humans get first-class access without any sign-up.
Live: quickhelp.dev · API: quickhelp.dev/openapi.json · MCP: quickhelp.dev/mcp
---
Tools
| Tool | UI | API endpoint |
|---|---|---|
| JWT Decoder | /jwt-decoder | POST /api/jwt-decoder |
| JSON Formatter | /json-formatter | POST /api/json-formatter |
| Base64 Encoder / Decoder | /base64 | POST /api/base64 |
| Image Converter | /image-converter | POST /api/image-converter |
| Image Resizer | /image-resizer | POST /api/image-resizer |
| Background Remover | /background-remover | POST /api/background-remover |
| Hash Generator | /hash-generator | POST /api/hash-generator |
| UUID Generator | /uuid-generator | POST /api/uuid-generator |
| URL Encoder / Decoder | /url-encoder | POST /api/url-encoder |
| Timestamp Converter | /timestamp-converter | POST /api/timestamp-converter |
| JSON to CSV | /json-to-csv | POST /api/json-to-csv |
| Text Case Converter | /text-case-converter | POST /api/text-case-converter |
| Color Converter | /color-converter | POST /api/color-converter |
| Number Base Converter | /number-base-converter | POST /api/number-base-converter |
| LCOV Viewer | /lcov-viewer | POST /api/lcov-viewer |
---
Three interfaces, one domain
Human UI — browser-based, no sign-up, no upload to a server. Image tools use WebAssembly in your browser; text tools run client-side JS.
REST API — every tool is POST /api/<slug>, JSON in, JSON out. Free tier: 30 req/60s watermarked. OpenAPI 3.1 spec at /openapi.json.
MCP server — a single MCP endpoint covers all 15 tools. AI agents (Claude, Cursor, Continue, etc.) can discover and call any tool via the Model Context Protocol.
GET https://quickhelp.dev/openapi.json # OpenAPI 3.1 — all tools
GET https://quickhelp.dev/llms.txt # llms.txt discovery surface
GET https://quickhelp.dev/llms-full.txt # full per-tool docs for LLMs
POST https://quickhelp.dev/mcp # MCP HTTP (JSON-RPC 2.0)
---
Use the MCP server
Claude Desktop
Add to claude_desktop_config.json:
{
"mcpServers": {
"quickhelp": {
"command": "npx",
"args": ["-y", "quickhelp-mcp"]
}
}
}
Claude Code (CLI)
claude mcp add --transport http quickhelp https://quickhelp.dev/mcp
Hosted HTTP endpoint (any MCP client)
POST https://quickhelp.dev/mcp
Content-Type: application/json
{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}
---
Quick API example
```bash
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