Riverflow 2 Pro API
Riverflow 2 Pro from $0.32 per image — the previous-generation Sourceful flagship, still available.
The previous-generation flagship Riverflow model. Maximum-detail design and packaging imagery from $0.32 per image.
No credit card required. Takes 30 seconds.
Riverflow 2 Pro API pricing
Pay per request from your YepAPI balance — no subscription, no monthly minimum. Prices updated October 23, 2026.
| Billing | Price |
|---|---|
| Rate | $0.32/image |
| What it costs | Per job |
|---|---|
| 1 imagefrom default size | $0.32 |
| 100 imagesa product catalog batch | $32.00 |
| 1,000 imagesa month of app traffic | $320.00 |
2,400+
Developers
1.2M+
API calls served
100+
Endpoints
$0.01
Per call
Yep, that's it.
Try it live
Enter a prompt and generate an image with Riverflow 2 Pro.
Drop image or click to upload
For image-to-image editing
Riverflow 2 Pro specs
| Provider | Sourceful |
|---|---|
| Model ID | sourceful/riverflow-v2-pro |
| Endpoint | /v1/media/queue |
| Type | Image Generation |
| Aspect ratios | 1:1, 4:3, 3:4, 3:2, 2:3, 16:9, 9:16, 21:9, auto |
| Image input | Yes |
How to get a Riverflow 2 Pro API key
- 1
Create a free account
Sign up at yepapi.com with Google or email. It takes about 30 seconds and needs no card.
- 2
Create an API key
Open the dashboard, go to API Keys and create a key. Copy it — it starts with yep_sk_.
- 3
Call Riverflow 2 Pro
Send a request to /v1/media/queue with the x-api-key header and model "sourceful/riverflow-v2-pro".
- 4
Pay as you go
Usage is billed per request from your balance. Top up any amount; there is no subscription.
Strengths
Riverflow 2 Pro remains the reference point for teams that built pipelines before the 2.5 line shipped.
Renders material texture and fine surface detail for close-up product and packaging shots.
Full framing range from square to 21:9 plus auto.
Iterate on an existing mockup by passing it as a reference image.
Quick start
Copy this snippet and start making calls with Riverflow 2 Pro.
// Step 1: Submit job
const res = await fetch('https://api.yepapi.com/v1/media/queue', {
method: 'POST',
headers: {
'x-api-key': 'YOUR_API_KEY',
'Content-Type': 'application/json',
},
body: JSON.stringify({
"model": "sourceful/riverflow-v2-pro",
"prompt": "A macro shot of embossed foil lettering on a navy hardcover book, raking light picking out the texture of the cloth binding, shallow depth of field",
"options": {
"aspectRatio": "1:1"
}
}),
});
const { data } = await res.json();
const jobId = data.jobId;
// Step 2: Poll for result
const status = await fetch(`https://api.yepapi.com/v1/media/status/${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? }Riverflow 2 Pro vs similar models
Every model below runs on the same API key — switch by changing the model ID.
| Model | Provider | Price |
|---|---|---|
| Riverflow 2 Pro | Sourceful | from $0.32/image |
| Riverflow 2 Fast | Sourceful | from $0.05/image |
| Riverflow 2.5 Fast | Sourceful | from $0.08/image |
| Riverflow 2.5 Pro | Sourceful | from $0.52/image |
| FLUX 3 Image Klein | Black Forest Labs | from $0.02/image |
| GPT Image 2 | OpenAI | from $0.02/image |
| GPT Image 1 Mini | OpenAI | from $0.02/image |
| GPT-5.4 Image 2 | OpenAI | from $0.02/image |
Why use Riverflow 2 Pro through YepAPI?
Riverflow 2 Pro API — previous-generation Sourceful flagship
Riverflow 2 Pro is the earlier flagship of Sourceful's image line, still favored for detail-heavy product and packaging renders.
YepAPI keeps it callable on `/v1/media/queue` at about $0.32 per image so existing pipelines keep running while you evaluate Riverflow 2.5.
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.”
“One API key for AI models, SERP data, and web scraping. Saved us from managing 4 separate providers.”
“The $5 free credit let us prototype our entire rank tracking feature before committing. No other API does that.”
Frequently asked questions
The previous-generation flagship Riverflow model. Maximum-detail design and packaging imagery from $0.32 per image.
Riverflow 2 Pro costs from $0.32/image through YepAPI, billed per request with no monthly fee. For example, a 1 image (from default size) costs about $0.32.
Sign up at yepapi.com (Google or email, about 30 seconds), open the dashboard and create an API key. The same key works for Riverflow 2 Pro and every other model — no separate Sourceful account or waitlist.
New YepAPI accounts in most countries get free signup credit, enough to test Riverflow 2 Pro without a card. After that you pay per request at the rates above — there is no subscription.
Use "sourceful/riverflow-v2-pro" as the model on /v1/media/queue. The short alias "riverflow-v2-pro" also works.
Ready to use Riverflow 2 Pro?
$5 free credit on signup. No credit card required. Pay per call.
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