# NSFW AI APIs — what "uncensored" actually means, and where the walls are

> A builder's guide to NSFW-friendly AI APIs — refusal walls vs policy walls, what uncensored models do differently, and how to ship an adult AI product responsibly.

Published 2026-08-25 · eroq.ai — canonical: https://eroq.ai/blog/nsfw-ai-api-guide


Search for an "NSFW AI API" and you land in a swamp: half the results are general-purpose APIs that will refuse your users mid-scene, the other half are anonymous endpoints with no policy, no invoicing entity and no tomorrow. This post is the map we wish we'd had — and a straight description of where eroq stands.

## Refusal walls vs policy walls

Every AI service has a wall somewhere. What matters is *which kind*.

A **refusal wall** lives inside the model: at the first mature turn, the model breaks character and lectures. It is probabilistic — the same prompt passes on Tuesday and fails on Thursday — so you cannot design a product around it. Your users experience it as the character dying mid-story, and your support inbox experiences what your users experience.

A **policy wall** lives outside the model: the engine renders what fiction asks for, and a written acceptable-use policy defines the absolute limits — enforced at the account level, not by a filter's mood. It is deterministic, documentable, and you can pass it through to your own users.

"Uncensored" done seriously means the second thing. It has never meant "no rules".

## What eroq allows, precisely

We are NSFW-friendly by policy, and the policy is [four paragraphs long](/legal/aup):

- **Allowed:** uncensored roleplay, adult fiction and mature imagery — chat, image and video — involving **adult, fictional characters**. Your users' scenes go where they go; the model stays in character.
- **Banned, absolutely:** any sexual content involving minors (real, fictional, stylized or implied), real, identifiable people without consent (deepfakes, impersonation), and anything illegal. Enforcement is account-level and final.

Requests outside policy return an explicit `content_blocked` error — not a lecture, not a charge, an error code your product can handle like any other.

## The checklist for choosing an NSFW-capable provider

From building consumer character products ourselves, the questions that actually predict whether an API will carry a product:

1. **Is the permissiveness written down?** If the docs won't say the word NSFW, the sales team's promise won't survive the model's filter. (Ours: it is on the [landing page](/).)
2. **Is there a real entity behind it?** Invoices, terms of sale, a jurisdiction. An anonymous endpoint that disappears takes your product with it.
3. **Do refusals cost you money?** Filtered models bill the refusal. Failed or blocked calls here are refunded automatically.
4. **Does the roleplay hold at message 200?** Permissiveness without persona discipline gives you an agreeable model with no character. [Roleplay needs its own tuning](/blog/why-roleplay-needs-its-own-tuning).
5. **Is pricing predictable under heavy users?** NSFW products have the heaviest users in the industry. Flat [per-call credits](/pricing) make your P95 user computable; per-token pricing does not.

## Your responsibilities as a builder

An NSFW-capable API is a component, not an absolution. Shipping an adult product responsibly means: age-gate your audience, pass an AUP at least as strict as your provider's through to your users, moderate what gets published (as opposed to generated), and keep your payment and platform partners accurately informed about what you operate. The builders who cut these corners are why half this market is a swamp.

We built eroq because we run adult character products ourselves and wanted infrastructure that says what it does and does what it says — an [NSFW AI API](/nsfw-ai-api) with a [roleplay engine](/roleplay-ai-api), [image generation](/nsfw-image-generation-api) and CDN storage under one written policy. If that is what you are looking for: the [quickstart](/docs/quickstart) is one curl, and the first 50 credits are free.