Sourceful API
Access 4 Sourceful modelsthrough YepAPI's unified API. One API key, OpenAI-compatible endpoint, pay-per-token pricing.
No credit card required. Takes 30 seconds.
Riverflow 2.5 Pro
Image GenerationRiverflow 2.5 Pro from $0.36 per image — Sourceful's flagship design and packaging image model.
Riverflow 2.5 Fast
Image GenerationRiverflow 2.5 Fast from $0.04 per image — the budget tier of Sourceful's design image model.
Riverflow 2 Pro
Image GenerationRiverflow 2 Pro from $0.70 per image — the previous-generation Sourceful flagship, still available.
Riverflow 2 Fast
Image GenerationRiverflow 2 Fast from $0.08 per image — the quick tier of the previous Riverflow generation.
Start using Sourceful models in 30 seconds
$5 free credit on signup. No credit card required.
Sourceful API through YepAPI
YepAPI provides access to Sourceful models through a unified API endpoint. Instead of managing a separate Sourceful API key and billing account, use your single YepAPI key to call any Sourceful model alongside 60+ other AI models from OpenAI, Anthropic, Google, Meta, and more.
All Sourceful models use the same OpenAI-compatible request format. Switch between models by changing the model parameter — no SDK changes, no code rewrites. Pay per token with no monthly minimums.
Ready to use Sourceful models?
4 Sourceful models included with one API key. $5 free credit on signup. No credit card required.