Promptibus MCP

Model intelligence for AI agents — syntax, parameters, pricing, and routing for 67+ generative AI models (Midjourney, Flux, Suno, Runway, DALL-E, Stable…

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What it can do

  • Recommend Model: Recommend the best AI model for a task. Returns top 3 models with reasoning, parameters, and links.
  • Optimize Prompt: Optimize a prompt for a specific AI model. Applies model-specific syntax, community-tested parameters, and best-practice wording so the prompt produces better results.
  • Lint Prompt: Lint a prompt against a model's rules. Finds errors like deprecated flags, invalid parameters, or length violations, and suggests fixes.

What data it sees

Do you need an account

No: the server works without sign-in

Model intelligence for AI agents — syntax, parameters, pricing, and routing for 67+ generative AI models (Midjourney, Flux, Suno, Runway, DALL-E, Stable Diffusion). 7 tools for any MCP client.

How to connect

How to connect Promptibus MCP to Claude

The server address to paste into Claude settings:

https://mcp--promptibus.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect Promptibus MCP to ChatGPT

The server address to paste into ChatGPT settings:

https://mcp--promptibus.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect Promptibus MCP to Cursor

The server address to paste into Cursor settings:

https://mcp--promptibus.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (7)

Raw names from tools/list. Only developers need these.

recommend_modelRecommend the best AI model for a task. Returns top 3 models with reasoning, parameters, and links.
optimize_promptOptimize a prompt for a specific AI model. Applies model-specific syntax, community-tested parameters, and best-practice wording so the prompt produces better results.
lint_promptLint a prompt against a model's rules. Finds errors like deprecated flags, invalid parameters, or length violations, and suggests fixes.
compare_modelsCompare 2-5 AI models side-by-side on provider, domain, cost, and capabilities.
get_parametersGet recommended parameters for a model, including defaults, ranges, and community-tested configs.
get_model_profileGet a complete model profile: capabilities, syntax guide, parameters, community tips, and related prompts.
get_pricingGet real-world USD pricing for an AI model, a whole domain, or a planned generation volume. Returns per-unit cost, subscription plans, cheaper alternatives, and total-cost estimates.