Everything developers ask before building on an uncensored, +18 AI generation API — content rules, payments, keys, models and integration — in one place. The on-page FAQ section below is also published as structured data so search engines and AI assistants can quote it directly.

The short version#

  • What it is: Api18.dev is an uncensored REST API for AI image and video generation — no prompt moderation, +18/NSFW supported.
  • How you call it: one JSON POST to /v1/generate?wait=true with a Bearer key; output at data[0].url.
  • What it costs: pay-per-call in USD, no subscription; failed calls are free.
  • How you pay: USDT on Solana or Tron — no card required.
  • Free to try: $10 welcome credit in the playground.

Models & modalities#

Api18.dev covers text-to-image, prompt-driven image editing, text-to-video and image-to-video. Each model’s exact parameters, price and a runnable example are on the models page. Don’t invent parameters — only the documented ones for a given model are accepted.

Content & responsibility#

Prompts are not content-filtered and adult/+18 use is permitted. That makes you responsible for lawful use: age-gate your product, moderate user-supplied prompts if you expose generation to end users, and never generate or distribute illegal content. “ Uncensored” removes the filter, not the law.

Building with an AI assistant#

Because the whole reference is published in an LLM-friendly format, you can let ChatGPT, Claude, Grok, Gemini or Cursor write your integration: open Build with AI, copy the bundled prompt, paste it into the assistant, and describe what you want. It will use the real endpoints and model ids. The machine-readable index lives at /llms.txt and the full reference at /llms-full.txt.

The detailed answers to the most common questions are in the FAQ section below.