Rtcf

Turns rough requests into sharp Role/Task/Context/Format prompts. Thai and English.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "rtcf": {
      "command": "npx",
      "args": [
        "-y",
        "rtcf"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

RTCF — Prompt Improver (Remote MCP Server)

Turn rough requests into sharp, structured prompts, right inside Claude, ChatGPT, or any MCP client.

RTCF rewrites a messy request into the four parts every strong prompt needs: Role, Task, Context, Format. Works in Thai and English. Free tier included (5 credits/day, no sign-up).

Website: https://rtcf.happlen.com
Setup guide: https://rtcf.happlen.com/docs
By Happlen

Endpoint

This is a hosted (remote) MCP server. No installation, no OAuth setup:

Code

https://rtcf.happlen.com/api/mcp

Transport: Streamable HTTP. On a paid plan, append your key: https://rtcf.happlen.com/api/mcp?key=rk_live_...

Tools

Tool	What it does	Cost
`improve_prompt`	Rewrites a rough request into the RTCF structure and returns a ready-to-use improved prompt	1+ credit
`build_prompt`	Weaves existing Role/Task/Context/Format parts into one clean prompt	Free

Quick setup

Claude (web / desktop / mobile)

Settings -> Connectors -> Add custom connector
Paste https://rtcf.happlen.com/api/mcp (leave OAuth fields empty)
In a chat, enable the connector and say: "Improve this prompt with RTCF, then answer it."

ChatGPT (paid plans, Developer mode)

Settings -> Apps -> Advanced -> enable Developer mode
Add a custom connector with the same URL
Ask ChatGPT to use RTCF

Claude Code

Terminal

claude mcp add --transport http rtcf https://rtcf.happlen.com/api/mcp

REST API

Terminal

curl -X POST https://rtcf.happlen.com/api/v1/convert \
  -H "Authorization: Bearer rk_live_..." \
  -H "Content-Type: application/json" \
  -d '{"prompt": "help me write an email to my professor"}'

Full API docs: https://rtcf.happlen.com/docs

ภาษาไทย

RTCF คือผู้ช่วยปรับพรอมต์สำหรับคนที่ใช้ AI แล้วไม่รู้จะพิมพ์อะไรดี วางคำขอคร่าว ๆ แล้วรับพรอมต์โครงสร้าง Role, Task, Context, Format กลับไปใช้ได้ทันที ใช้ฟรีวันละ 5 เครดิต ไม่ต้องสมัครสมาชิก ใช้ได้ทั้งบนเว็บ ใน Claude และ ChatGPT ผ่านลิงก์ MCP ด้านบน

Questions: hello@happlen.com

Read the full README →View source on GitHub →

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Frequently Asked Questions about Rtcf

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "rtcf": { "command": "npx", "args": ["-y", "rtcf"] } }

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Technical Specs & Signals

CategoryMultimedia Process

27Quality signal: Emerging · 27/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership8/20

Documentation & tools11/30

Adoption & activity1/15

Community engagement0/10

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More in 🎥 Multimedia Process →Best MCP servers for Multimedia & Media Processing →Alternatives to Rtcf →Install in Claude Desktop Install in Cursor Install in VS Code

Documentation Overview

RTCF — Prompt Improver (Remote MCP Server)

Turn rough requests into sharp, structured prompts, right inside Claude, ChatGPT, or any MCP client.

RTCF rewrites a messy request into the four parts every strong prompt needs: Role, Task, Context, Format. Works in Thai and English. Free tier included (5 credits/day, no sign-up).

Website: https://rtcf.happlen.com
Setup guide: https://rtcf.happlen.com/docs
By Happlen

Endpoint

This is a hosted (remote) MCP server. No installation, no OAuth setup:

Code

https://rtcf.happlen.com/api/mcp

Transport: Streamable HTTP. On a paid plan, append your key: https://rtcf.happlen.com/api/mcp?key=rk_live_...

Tools

Tool	What it does	Cost
`improve_prompt`	Rewrites a rough request into the RTCF structure and returns a ready-to-use improved prompt	1+ credit
`build_prompt`	Weaves existing Role/Task/Context/Format parts into one clean prompt	Free

Quick setup

Claude (web / desktop / mobile)

Settings -> Connectors -> Add custom connector
Paste https://rtcf.happlen.com/api/mcp (leave OAuth fields empty)
In a chat, enable the connector and say: "Improve this prompt with RTCF, then answer it."

ChatGPT (paid plans, Developer mode)

Settings -> Apps -> Advanced -> enable Developer mode
Add a custom connector with the same URL
Ask ChatGPT to use RTCF

Claude Code

Terminal

claude mcp add --transport http rtcf https://rtcf.happlen.com/api/mcp

REST API

Terminal

curl -X POST https://rtcf.happlen.com/api/v1/convert \
  -H "Authorization: Bearer rk_live_..." \
  -H "Content-Type: application/json" \
  -d '{"prompt": "help me write an email to my professor"}'

Full API docs: https://rtcf.happlen.com/docs

ภาษาไทย

Questions: hello@happlen.com