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Rtcf

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Prompt improver MCP server (hosted). Turns rough requests into sharp Role/Task/Context/Format prompts. Thai + English.

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About

Prompt improver MCP server (hosted). Turns rough requests into sharp Role/Task/Context/Format prompts. Thai + English.

README

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).

Endpoint

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

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)

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

ChatGPT (paid plans, Developer mode)

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

Claude Code

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

REST API

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: [email protected]

from github.com/hengkp/rtcf-mcp

Installing Rtcf

This server has no published package — it is built from source. Open the repository and follow its README.

▸ github.com/hengkp/rtcf-mcp

FAQ

Is Rtcf MCP free?

Yes, Rtcf MCP is free — one-click install via Unyly at no cost.

Does Rtcf need an API key?

No, Rtcf runs without API keys or environment variables.

Is Rtcf hosted or self-hosted?

Self-hosted: the server runs locally on your machine via the install command above.

How do I install Rtcf in Claude Desktop, Claude Code or Cursor?

Open Rtcf on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.

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