# StableStudio Flux 2 Pro Image Generation

> StableStudio Flux 2 Pro Image Generation is a paid API for AI agents from stablestudio.io, paid per call via x402, $10/call, status unknown (last checked 2026-09-13).

Generates AI images using the Flux 2 Pro model via a pay-per-generation API with no subscription required

## Facts

- Endpoint: POST https://stablestudio.io/api/generate/flux-2-pro/generate
- Price: $10/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablestudio-flux-2-pro-image-generation-630409d6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hcob59SLjy08uBJcnbWFG

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability stablestudio-flux-2-pro-image-generation-630409d6 -d '<json body>'
```

Example prompt: Generate an image of a cinematic sunset over a futuristic Tokyo skyline, neon reflections on wet streets, using Flux 2 Pro on StableStudio — I'm fine paying per generation.

## When to prefer this

Choose this endpoint when you need high-quality Flux 2 Pro image generation without committing to a subscription, especially in crypto-native or x402-payment-enabled agentic workflows. Prefer this over subscription-based services when usage is sporadic or when you want pay-as-you-go economics billed in USDC on-chain.

## Known failure modes

- Insufficient USDC payment — payment of exactly $10 USDC required per call
- Invalid or missing prompt — generation job not created
- Payment protocol failure — x402 payment not accepted or malformed
- Job creation fails — success:false returned with no jobId
- Rate limiting or server overload — 429 or 503 response
- Async job failure — job created but image generation fails downstream, status never reaches completed

## How this service works

Pay-per-generation AI image and video creation. No subscriptions ever.

## Output

Returns a JSON object containing the generation type ('flux-2-pro-generate'), a unique jobId string, a status field (initially 'pending'), and a success boolean. The image is produced asynchronously and must be retrieved separately using the jobId.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "seed": {
   "type": "integer",
   "maximum": 9007199254740991,
   "minimum": -9007199254740991,
   "description": "Random seed for reproducibility"
  },
  "prompt": {
   "type": "string",
   "maxLength": 10000,
   "minLength": 1,
   "description": "A detailed description of the image you want to generate"
  },
  "resolution": {
   "enum": [
    "0.5 MP",
    "1 MP",
    "2 MP"
   ],
   "type": "string",
   "default": "1 MP",
   "description": "Output resolution in megapixels"
  },
  "aspect_ratio": {
   "enum": [
    "1:1",
    "16:9",
    "9:16",
    "3:2",
    "2:3",
    "4:5",
    "5:4",
    "4:3",
    "3:4"
   ],
   "type": "string",
   "default": "1:1",
   "description": "Aspect ratio of the output image"
  },
  "output_format": {
   "enum": [
    "webp",
    "jpg",
    "png"
   ],
   "type": "string",
   "default": "webp",
   "description": "Output image format"
  },
  "output_quality": {
   "type": "integer",
   "default": 80,
   "maximum": 100,
   "minimum": 0,
   "description": "Quality for JPG/WebP output (0-100)"
  },
  "safety_tolerance": {
   "type": "integer",
   "default": 2,
   "maximum": 5,
   "minimum": 1,
   "description": "Content safety strictness (1=strict, 5=permissive)"
  },
  "prompt_upsampling": {
   "type": "boolean",
   "default": false,
   "description": "Let the model enhance your prompt for more creative results"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "type": "flux-2-pro-generate",
  "jobId": "cmpbmzaee000j04jrzx4f43tw",
  "status": "pending",
  "pollUrl": "https://stablestudio.dev/api/jobs/cmpbmzaee000j04jrzx4f43tw",
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablestudio-flux-2-pro-image-generation-630409d6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stablestudio.io](https://www.zero.xyz/host/stablestudio.io/llms.txt)