Black Forest Labs

Black Forest Labs on xpay — State-of-the-art text-to-image generation, billed per call

Black Forest Labs created FLUX, a family of text-to-image models known for photorealistic output and fine detail. Developers reach for FLUX when they need production-grade image generation—whether for product mockups, marketing assets, design exploration, or API-driven workflows. On xpay, you call FLUX tools directly through MCP without signing up for a Black Forest Labs account, and you pay only for what you use.

What's available

• black_forest_labs_flux_pro — FLUX 1.1 Pro delivers the highest quality photorealistic images, ideal when output fidelity is non-negotiable. Best for hero images, product photography, and high-stakes creative work.
• black_forest_labs_flux_dev — FLUX Dev balances quality and generation speed, suitable for iterative design, batch processing, and workflows where turnaround matters.
• black_forest_labs_flux_schnell — FLUX Schnell is the fastest option, generating images in 1–4 steps. Perfect for real-time applications, high-volume generation, and cost-sensitive use cases.

When Black Forest Labs is the right tool

• You need photorealistic image generation with fine control over composition and detail.
• Your workflow requires fast iteration—testing multiple prompts or variations in a single session.
• You're building an agent or application that generates images on-demand without maintaining a separate image service.
• You want to avoid managing upstream API keys and prefer unified billing across multiple providers.
• Your use case spans product mockups, marketing assets, design exploration, or user-facing image creation.

When to choose something else

• You need image editing, inpainting, or manipulation—FLUX is text-to-image only; tools like Replicate's Stable Diffusion XL or open-source alternatives may be better for post-generation edits.
• Your budget is extremely tight and you can tolerate lower-quality output—free or open-source models (Stable Diffusion, DALL-E mini) may suffice.
• You need real-time streaming or sub-second latency—FLUX generation takes several seconds, even with Schnell.
• You require image-to-image workflows, style transfer, or other non-text-to-image tasks.
• You need batch processing with guaranteed uptime SLAs—xpay is best for on-demand, agent-driven calls rather than scheduled bulk jobs.

Pricing snapshot

Quickstart

claude mcp add --transport http black-forest-labs "https://black-forest-labs.mcp.xpay.sh/mcp?key=YOUR_XPAY_KEY"

Replace YOUR_XPAY_KEY with your xpay API key (get one free at https://xpay.tools after email or Google signup). Once connected, your Claude Code agent can call tools by name—for example, "use black_forest_labs_flux_pro to generate a photorealistic image of a sunset over mountains" and the agent will invoke the tool with your prompt.

Alternatively, to access all xpay providers (including Black Forest Labs) through a single MCP connection:

claude mcp add --transport http xpay "https://mcp.xpay.sh/mcp?key=YOUR_XPAY_KEY"

Then use xpay_run("black-forest-labs/black_forest_labs_flux_pro", {"prompt": "..."}) to invoke tools.

Why route Black Forest Labs through xpay?

• No Black Forest Labs signup — xpay holds the upstream credentials; you authenticate once with your xpay key and access FLUX immediately.
• Pay per call, no subscription — Generate one image or one thousand; you're billed only for what you use, with no monthly minimums or seat fees.
• MCP-native integration — Call FLUX directly from Claude Code, Cursor, Windsurf, Cline, or VS Code without custom API wrappers or HTTP clients.
• Unified billing — If you use multiple providers (Tavily, Apollo, Replicate, etc.), xpay consolidates all charges into a single invoice and credit pool.
• Instant provisioning — Start generating images within seconds of signup; no waiting for approval or account setup with Black Forest Labs.