Rtcf
FreeNot checkedPrompt improver MCP server (hosted). Turns rough requests into sharp Role/Task/Context/Format prompts. Thai + English.
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).
- 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:
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
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]
Installing Rtcf
This server has no published package — it is built from source. Open the repository and follow its README.
▸ github.com/hengkp/rtcf-mcpFAQ
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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