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SourcefulImage Generation/v1/media/queue

Riverflow 2.5 Pro

Riverflow 2.5 Pro from $0.36 per image — Sourceful's flagship design and packaging image model.

Sourceful's flagship image model, tuned for design and packaging work. Nine aspect ratios, PNG/JPEG/WebP output, and reference-image editing — from $0.36 per image.

No credit card required. Takes 30 seconds.

2,400+

Developers

1.2M+

API calls served

100+

Endpoints

$0.01

Per call

Yep, that's it.

Try it live

Enter a prompt and generate an image with Riverflow 2.5 Pro.

POST/v1/media/queue

Drop image or click to upload

For image-to-image editing

Response
Hit "Send Request" to see the response

Pricing

Per-image: from $0.36/image

Endpoint

/v1/media/queue

Strengths

Design and packaging focus

Riverflow is built by Sourceful with product, packaging, and brand visuals in mind rather than generic art.

Three output formats

Return PNG, JPEG, or WebP directly, so downstream pipelines skip a conversion step.

Nine aspect ratios

1:1 through 21:9 plus auto for packshots, banners, and social crops.

Reference-image editing

Upload an existing product shot or mockup to restyle or extend it.

Quick start

Copy this snippet and start making calls with Riverflow 2.5 Pro.

// Step 1: Submit job
const res = await fetch('https://api.yepapi.com/v1/media/queue', {
  method: 'POST',
  headers: {
    'x-api-key': 'YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "model": "sourceful/riverflow-v2.5-pro",
    "prompt": "A packaging mockup for small-batch coffee: matte kraft pouch with a deep teal label, embossed logo mark, standing on pale concrete, soft directional studio light",
    "options": {
      "aspectRatio": "1:1"
    }
  }),
});
const { data } = await res.json();
const jobId = data.jobId;

// Step 2: Poll for result
const status = await fetch(`https://api.yepapi.com/v1/media/status/${jobId}`, {
  headers: { 'x-api-key': 'YOUR_API_KEY' },
});
const { data: job } = await status.json();
// job.status: "pending" | "processing" | "completed" | "failed"
// job.result: { text?, image?, audio?, video? }

Why use Riverflow 2.5 Pro through YepAPI?

One API key for all models — no separate accounts
No monthly minimums — pay per call
Switch models with one line of code
Simple REST API — works from any language
Unified billing across all providers
No rate limits for most use cases

Riverflow 2.5 Pro API — design-grade image generation

Riverflow 2.5 Pro is Sourceful's flagship image model, aimed squarely at commercial design work — packaging, product visuals, and brand imagery — with PNG, JPEG, or WebP output.

Through YepAPI it runs on `/v1/media/queue` at about $0.36 per image, with reference-image editing for iterating on an approved mockup.

Start generating in 30 seconds

$5 free credit on signup. No credit card required. Pay per call.

What developers say

Switched from SerpAPI and cut our SERP costs by 80%. Same data quality, way simpler billing.

Marcus T.

SEO Platform Founder

One API key for AI models, SERP data, and web scraping. Saved us from managing 4 separate providers.

Priya S.

Full-Stack Developer

The $5 free credit let us prototype our entire rank tracking feature before committing. No other API does that.

Jake R.

Indie Hacker

Frequently asked questions

Sourceful's flagship image model, tuned for design and packaging work. Nine aspect ratios, PNG/JPEG/WebP output, and reference-image editing — from $0.36 per image.

Pricing for Riverflow 2.5 Pro through YepAPI is based on usage. No monthly minimums — you only pay for what you use.

Sign up for a free API key, then send requests to the /v1/media/queue endpoint.

Ready to use Riverflow 2.5 Pro?

$5 free credit on signup. No credit card required. Pay per call.

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