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Black Forest Labs Flux Dev

black_forest_labs_flux_dev

FLUX Dev — balanced quality and speed for image generation

$0.05/call
Flat rate
Black Forest Labs
Raw SKILL.mdTool Page

When to Use

Use this tool when you need to flux dev — balanced quality and speed for image generation. This is part of the Black Forest Labs provider on xpay✦.

MCP Connection

Connect to xpay✦ to access this tool (and 2+ others):

{
  "mcpServers": {
    "xpay": {
      "url": "https://mcp.xpay.sh/mcp?key=YOUR_API_KEY"
    }
  }
}

For Claude Code:

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

How to Execute

Use the xpay✦ meta-tools to run this tool:

  1. xpay_details — Get full input schema: xpay_details("black-forest-labs/black_forest_labs_flux_dev")
  2. xpay_run — Execute: xpay_run("black-forest-labs/black_forest_labs_flux_dev", { ...inputs })

Input Parameters

ParameterTypeRequiredDescription
imagestringNoInput image for image to image mode. The aspect ratio of your output will match this image
aspect_ratiostringNoAspect ratio for the generated image
num_outputsintegerNoNumber of outputs to generate
seedintegerNoRandom seed. Set for reproducible generation
go_fastbooleanNoRun faster predictions with model optimized for speed (currently fp8 quantized); disable to run in original bf16. Note that outputs will not be deterministic when this is enabled, even if you set a seed.
megapixelsstringNoApproximate number of megapixels for generated image
prompt_strengthnumberNoPrompt strength when using img2img. 1.0 corresponds to full destruction of information in image
output_qualityintegerNoQuality when saving the output images, from 0 to 100. 100 is best quality, 0 is lowest quality. Not relevant for .png outputs
disable_safety_checkerbooleanNoDisable safety checker for generated images.
output_formatstringNoFormat of the output images
guidancenumberNoGuidance for generated image
promptstringYesPrompt for generated image
num_inference_stepsintegerNoNumber of denoising steps. Recommended range is 28-50, and lower number of steps produce lower quality outputs, faster.

Pricing

  • Cost: $0.05/call
  • Balance check: Use xpay_balance to check remaining credits
  • Get your API key at xpay.tools — $5 free credits included

Related Skills

  • Black Forest Labs (all tools) — 3 tools
  • Black Forest Labs Flux Pro — $0.08/call
  • Black Forest Labs Flux Schnell — $0.01/call

Links

  • Tool page: https://xpay.tools/black-forest-labs/black-forest-labs-flux-dev/
  • Provider: https://xpay.tools/black-forest-labs/
  • All tools: https://xpay.tools/explore
How to Execute
// 1. Get full schema
xpay_details("black-forest-labs/black_forest_labs_flux_dev")
// 2. Execute
xpay_run("black-forest-labs/black_forest_labs_flux_dev", { ...inputs })
Input Parameters
ParameterTypeRequiredDescription

image

stringNo

Input image for image to image mode. The aspect ratio of your output will match this image

aspect_ratio

stringNo

Aspect ratio for the generated image

num_outputs

integerNo

Number of outputs to generate

seed

integerNo

Random seed. Set for reproducible generation

go_fast

booleanNo

Run faster predictions with model optimized for speed (currently fp8 quantized); disable to run in original bf16. Note that outputs will not be deterministic when this is enabled, even if you set a seed.

megapixels

stringNo

Approximate number of megapixels for generated image

prompt_strength

numberNo

Prompt strength when using img2img. 1.0 corresponds to full destruction of information in image

output_quality

integerNo

Quality when saving the output images, from 0 to 100. 100 is best quality, 0 is lowest quality. Not relevant for .png outputs

disable_safety_checker

booleanNo

Disable safety checker for generated images.

output_format

stringNo

Format of the output images

guidance

numberNo

Guidance for generated image

prompt

string
Yes

Prompt for generated image

num_inference_steps

integerNo

Number of denoising steps. Recommended range is 28-50, and lower number of steps produce lower quality outputs, faster.

Related Tools from Black Forest Labs
Black Forest Labs Flux Pro — $0.08Black Forest Labs Flux Schnell — $0.01
Install Skill
Claude Code
claude /install-skill https://xpay.tools/skills/black-forest-labs/black-forest-labs-flux-dev/SKILL.md
CLI
npx @xpaysh/cli install black-forest-labs/black-forest-labs-flux-dev
Manual
curl -o SKILL.md https://xpay.tools/skills/black-forest-labs/black-forest-labs-flux-dev/SKILL.md
Pricing

Cost

$0.05/call

Model

Flat rate

Provider

Black Forest Labs

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