
The Promptchan API
A documented API covers image generation, character chat and video, authenticated with a key in the x-api-key header. POST /api/external/create returns an image for 1 Gem by default, more at higher quality or with face restoration. POST /api/external/chat is billed per message, 0.4 Gem on v2.5 Pro and 0.2 on v2.5 Fast, with no free allowance. Video runs on a separate host, and its endpoints return a 503 if sent to the main one.
Who owns API and site output
Users keep ownership of what they create in every mode. In public mode, though, they grant Promptchan a non-exclusive, royalty-free, worldwide, perpetual, irrevocable and transferable license to host, reproduce, distribute and adapt it, including to promote the service. In private or offline mode, Promptchan asserts no rights and makes no public or commercial use of it. A webmaster producing for their own catalog should stay private.
Promptchan plans
The free plan gives daily Gems for images and chat. Plus costs $14.99 a month for 100 Gems, Premium $23.99 for 400, and Pro $33.99 for unlimited casual generations, 800 Gems, video, 4K images and voice calls. Subscribers buy extra Gems at half price. Refunds are possible within 30 days with no significant use, and never for crypto payments. The terms ban child abuse material, non-consensual intimate imagery, scat, incest, extreme violence, high school settings or characters shown as minors, bestiality and any real person without consent.
Promptchan strengths and limitations
Strengths
- A public API for images, chat and video.
- No rights claimed in private mode.
- A named Irish company with an address.
Limitations
- A perpetual license in public mode.
- Video only on the $33.99 tier.
- API chat with no free allowance.
Promptchan versus Black Forest Labs
Black Forest Labs sells per-image API access to its FLUX models, but filters sexual content. Promptchan’s API generates uncensored images and adds chat and video.
Arli AI rents access to open text and image models with no token or request cap, from $10 to $160 a month.
Read the review Arli AI →Black Forest Labs, a German company based in Freiburg, builds the FLUX image and video models.
Read the review Black Forest Labs →Since April 2026, Civitai Red has been the Civitai domain that carries all adult content and takes crypto.
Read the review Civitai Red →CompliantPix, run by the Dutch company AIA Digital, sells ready-made AI adult image sets, ten per profile, to fill dating sites, chat platforms and white-label products.
Read the review CompliantPix →