Is Flux Kontext free?

Yes, Flux Kontext is free to use.

How do I install Flux Kontext?

Flux Kontext is a local plugin. Install it using npm package: @runapi.ai/flux-kontext-mcp and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

Is Flux Kontext safe to use?

Flux Kontext scored 6.2/10 (moderate risk) in MCP Marketplace's automated security scan. It has 1 high or critical finding to review. It's listed, but review the security report on this page before installing.

What credentials does Flux Kontext need?

Flux Kontext requires the following credentials or environment variables: RUNAPI_API_KEY. You can find setup instructions on the server detail page.

What AI apps work with Flux Kontext?

Flux Kontext uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

Back to Browse

Flux Kontext MCP Server

by Runapi Ai

Developer ToolsModerate6.2MCP RegistryLocal

Free

Server data from the Official MCP Registry

RunAPI MCP server for Flux Kontext: create tasks, poll status, and check pricing.

About

RunAPI MCP server for Flux Kontext: create tasks, poll status, and check pricing.

Security Report

6.2

Moderate6.2Moderate Risk

This is a well-structured MCP server for the RunAPI Flux Kontext image generation service. Authentication is properly handled via environment variables or config files, and the codebase follows secure patterns with no evidence of malicious activity. Minor code quality concerns around input validation and error handling do not significantly impact the security posture. Supply chain analysis found 1 known vulnerability in dependencies (1 critical, 0 high severity). Package verification found 1 issue.

7 files analyzed · 6 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

env_vars

Check that this permission is expected for this type of plugin.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

HTTP Network Access

Connects to external APIs or services over the internet.

What You'll Need

Set these up before or after installing:

RunAPI API key. Get one at https://runapi.aiRequired

Environment variable: RUNAPI_API_KEY

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-runapi-builder-flux-kontext-mcp": {
      "env": {
        "RUNAPI_API_KEY": "your-runapi-api-key-here"
      },
      "args": [
        "-y",
        "@runapi.ai/flux-kontext-mcp"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

@runapi.ai/flux-kontext-mcp

RunAPI MCP server for the Flux Kontext model line. Create image tasks, poll their status, and check pricing through a single RunAPI API key.

Tools

text_to_image — create a Flux Kontext task and (optionally) poll until it reaches a terminal status. Returns the task id, status, output URLs, and a price snapshot. Models: flux-kontext-max, flux-kontext-pro.
get_task — fetch the current status and latest payload for a task.
check_pricing — look up pricing for a model in this line.

Configuration

Set a RunAPI API key via the RUNAPI_API_KEY environment variable, or write it to ~/.config/runapi/config.json:

mkdir -p ~/.config/runapi
echo '{"api_key":"YOUR_KEY"}' > ~/.config/runapi/config.json

Get an API key at https://runapi.ai. Pricing is listed at https://runapi.ai/pricing.

Usage

Run the server over stdio:

npx -y @runapi.ai/flux-kontext-mcp

Add it to an MCP client (see examples/ for per-client configs):

{
  "mcpServers": {
    "flux-kontext": {
      "command": "npx",
      "args": ["-y", "@runapi.ai/flux-kontext-mcp"],
      "env": { "RUNAPI_API_KEY": "${RUNAPI_API_KEY}" }
    }
  }
}

License

Apache-2.0

Reviews

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Flux Kontext MCP Server

About

Security Report

Findings (6)Action required

Permissions Required

What You'll Need

How to Install

Documentation

@runapi.ai/flux-kontext-mcp

Tools

Configuration

Usage

License

Reviews

No reviews yet

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