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Just Prompt - A lightweight MCP server for LLM providers

@disler

Repository

About Just Prompt - A lightweight MCP server for LLM providers

just-prompt is an MCP server that provides a unified interface to top LLM providers (OpenAI, Anthropic, Google Gemini, Groq, DeepSeek, and Ollama)

Basic information

Category

AI & Agents

Runtime

python

Transports

stdio

Publisher

disler

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "just-prompt": {
      "command": "uv",
      "args": [
        "sync"
      ]
    }
  }
}

Tools

6

Send a prompt to multiple LLM models

Send a prompt from a file to multiple LLM models

Send a prompt from a file to multiple LLM models and save responses as markdown files

Send a prompt to multiple 'board member' models and have a 'CEO' model make a decision based on their responses

List all available LLM providers

List all available models for a specific LLM provider

Overview

What is Just Prompt?

Just Prompt is a Model Control Protocol (MCP) server that provides a unified interface to various Large Language Model (LLM) providers including OpenAI, Anthropic, Google Gemini, Groq, DeepSeek, and Ollama. It is designed for developers and AI practitioners who need to query multiple models from different providers through a single API.

How to use Just Prompt?

Install by cloning the repository and running uv sync. Configure API keys in a .env file, then start the server with uv run just-prompt (optionally with --default-models). Use MCP tools such as prompt, prompt_from_file, prompt_from_file_to_file, ceo_and_board, list_providers, and list_models to send prompts, manage files, or list available options.

Key features of Just Prompt

  • Unified API for multiple LLM providers
  • Send prompts from strings or files
  • Run multiple models in parallel
  • Automatic model name correction
  • Save responses to markdown files
  • Easy listing of available providers and models
  • CEO-and-board decision flow using multiple models

Use cases of Just Prompt

  • Send the same prompt to several LLMs and compare outputs
  • Load a prompt from a file and query multiple models simultaneously
  • Use a board of models with a CEO model to synthesize decisions
  • List all available providers and models for configuration

FAQ from Just Prompt

Which LLM providers does Just Prompt support?

Just Prompt supports OpenAI, Anthropic, Google Gemini, Groq, DeepSeek, and Ollama.

How do I configure API keys for Just Prompt?

Create a .env file with your API keys for the providers you wish to use, following the .env.sample template provided in the repository.

How can I control reasoning effort for OpenAI o‑series models?

Append :low, :medium, or :high to the model name (e.g., openai:o4-mini:high) to set the reasoning effort level.

How do I enable thinking tokens for Claude models?

Append a thinking budget suffix like :1k or :4k to the model name (e.g., anthropic:claude-opus-4-20250514:4k). Valid budgets range from 1024 to 16000 tokens.

How can I set thinking budget for Gemini models?

Append a budget suffix like :1k to the model name (e.g., gemini:gemini-2.5-flash-preview-04-17:4k). Valid budgets range from 0 to 24576.

Comments

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