Model intelligence for AI agents — syntax, params, pricing for 67+ generative AI models.
Config is the same across clients — only the file and path differ.
{
"mcpServers": {
"com-promptibus-mcp": {
"command": "<see-readme>",
"args": []
}
}
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Model intelligence for AI agents — syntax, params, pricing for 67+ generative AI models.
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Model intelligence for AI agents. Syntax, parameters, pricing, and routing for 67+ generative AI models (Midjourney, Flux, Suno, Runway, DALL-E, Stable Diffusion, and more), delivered via the Model Context Protocol.
Promptibus MCP gives your AI agent structured knowledge about generative AI models: which model fits a task, how to format prompts for it, what parameters to use, what a run of 100 images will cost, and what pitfalls to avoid. It's not an API wrapper — it doesn't generate images or music. Instead, it tells your agent how to use the tools it already has access to.
Think of it as a prompt engineering co-pilot embedded in your agent's tool chain.
Works out of the box with any MCP-compatible client:
claude_desktop_config.jsonclaude mcp add promptibus -- npx -y @promptibus/mcp.cursor/mcp.json~/.codeium/windsurf/mcp_config.jsonsettings.json under context_servers~/.continue/config.jsonSee Client Configs for per-client snippets.
There are three install paths, in rough order of convenience:
Visit https://smithery.ai/server/@promptibus/mcp, pick your client, click install. Smithery writes the config for you.
For MCP clients that support HTTP transport, point straight at our hosted endpoint:
{
"mcpServers": {
"promptibus": {
"url": "https://promptibus.com/api/mcp"
}
}
}
No npm, no process to manage, no local state. Works behind firewalls as long as the client can reach promptibus.com.
{
"mcpServers": {
"promptibus": {
"command": "npx",
"args": ["-y", "@promptibus/mcp"],
"env": {
"PROMPTIBUS_API_KEY": "psy_your_api_key_here"
}
}
}
}
The package talks to the hosted Promptibus API — no database, no server setup. API key is optional (raises rate limits and unlocks all 67+ models).
| Variable | Required | Description |
|---|---|---|
PROMPTIBUS_API_KEY | No | API key for higher rate limits and full tool access. Works anonymously without one. Get a key at promptibus.com/settings/api-keys |
PROMPTIBUS_API_URL | No | Override API base URL (default: https://promptibus.com). Useful for testing or self-hosted Promptibus instances. |
All seven tools are available to every tier — including anonymous use without an API key. Tiering applies to rate limits and which models you can query against (see below).
| Tool | Description | Example Input |
|---|---|---|
recommend_model | Find the best model for a task. Returns top 3 with reasoning and parameters. | { "task": "photorealistic portrait", "domain": "IMAGE" } |
optimize_prompt | Optimize a prompt for a specific model. Applies model-specific syntax, community-tested parameters, and best-practice wording. | { "text": "a cat in space", "model": "midjourney-v7" } |
lint_prompt | Lint a prompt against a model's rules. Finds deprec |