EN ▾
EnglishEN简体中文中文EspañolesPortuguês (Brasil)PTDeutschdeFrançaisfr日本語ja한국어koРусскийruItalianoitBahasa IndonesiaidTürkçetrTiếng ViệtviPolskiplNederlandsnlالعربيةarहिन्दीhiไทยth繁體中文繁中УкраїнськаukSvenskasvČeštinacsRomânăroעבריתheΕλληνικάelفارسیfaDanskdaSuomifiMagyarhuBahasa Melayums
[API Aicharacter]Start now
API Aicharacter(1)https://api.apiaicharacter.com/v1

Uncensored LLM API

Character.ai api Alternative for Uncensored Apps

Get an OpenAI-compatible character.ai API alternative with 100,000 token context for uncensored, NSFW-tolerant text generation without monthly subscriptions.

Start nowView documentation

Test with one request

curl https://api.apiaicharacter.com/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "uncensored",
    "messages": [{"role": "user", "content": "What is the current API rate limit status?"}]
  }'

Core features

  1. Uncensored Model

    One open-weight model answers without content refusals for lawful adult use.

  2. OpenAI Compatible

    Drop-in replacement using standard chat-completions endpoints and any compatible SDK.

  3. Large Context

    Handle 100,000 token context windows with 16,000 token maximum output.

  4. Streaming Support

    Real-time token streaming via SSE with usage data in the final chunk.

  5. Function Calling

    Full tool support including tool_choice and JSON mode for structured outputs.

  6. Transparent Billing

    Prepaid credit charged by real usage with errors and refusals free.

Setup guide

  1. Create Account

    Sign up with Google or email to get your API key instantly.

  2. Top Up Crypto

    Add credit using USDT or USDC with bonus credits on larger amounts.

  3. Make First Call

    Send requests to the chat-completions endpoint with your model identifier.

Community projects

Unrestricted Chatbots
Build NSFW-tolerant chat interfaces that let users explore any topic freely.
Content Generation
Generate creative writing and fiction without standard content filters blocking output.
Roleplay Apps
Power character-driven apps with long context windows for consistent storytelling.
Developer Integration
Integrate uncensored AI into existing apps using standard OpenAI SDK tools.

The character.ai API alternative for uncensored, NSFW-tolerant apps

Our API provides a direct, OpenAI-compatible replacement for the character.ai API, serving a single uncensored model that accepts lawful adult content without hidden refusals.

Direct Drop-In Replacement

Use the same /v1/chat/completions endpoint with our base URL to swap in our uncensored LLM instantly.

Transparent Prepaid Billing

Pay only for tokens used; errors are free, and crypto top-ups trigger bonus credits.

Unrestricted Context

Handle long narratives with a 100k token window, ensuring your character's memory stays intact.

Checklist: How to choose the right uncensored LLM provider

Verify billing structure first. We charge by real token usage with errors free and prepaid crypto credits. Ensure the model truly ignores refusals for lawful adult content. Confirm OpenAI compatibility for easy SDK integration. Check context window limits, as we support 100k tokens. Review request caps, like our 300 per minute limit. Avoid providers hiding rate limits behind complex subscription tiers.

How it works: From signup to your first API call

Get your key instantly via Google or email, then top up with crypto to start generating text. Follow these simple steps:

  1. Sign up: Use the 'Get API key' page to create an account without a phone number.
  2. Get your key: Your unique API key appears immediately for use with standard SDKs.
  3. Add credit: Top up with USDT or USDC; bonuses apply automatically at $50+.
  4. Make a request: Send a POST request to /v1/chat/completions with your key.

You receive an uncensored response in seconds, billed only for actual tokens used.

Common mistakes when migrating from Character.ai to an API

Developers often assume their existing scripts work instantly, but the context window behavior differs significantly. The uncensored LLM supports 100,000 tokens total, not just the input stream. You must configure the max_tokens parameter explicitly to ensure sufficient output capacity, otherwise responses truncate prematurely. Another frequent error involves ignoring the strict 300 requests per minute limit. Without proper retry logic, your application will fail under load. Always test with the prepaid credit first to verify token accounting matches your expectations.

Who is this for? (And who should look elsewhere)

Build NSFW-tolerant chatbots, unrestricted character apps, or AI game worlds with this uncensored LLM API. It powers developers who need direct prompt control without content refusals.

  • Use it for: uncensored AI characters, roleplay engines, or unfiltered chatbot interfaces.
  • Skip it if: you need image generation, embeddings, or fine-tuning models. This service only handles text completion via the standard OpenAI-compatible endpoint.

Worked cost examples: Token arithmetic and billing

You pay strictly for tokens consumed, not for idle time. A 5,000-token input and 2,000-token output costs $0.00075 plus $0.001. Errors incur zero charges. Credits never expire, so unused balance rolls over indefinitely. You can top up via crypto with bonus credits added automatically at higher tiers. This transparent model ensures you only spend on actual generation.

Common questions

What is the character.ai API alternative for uncensored, NSFW-tolerant apps?

It is a hosted, OpenAI-compatible chat-completions API serving one uncensored large language model. Text in, text out. It offers a straightforward drop-in alternative to Character.ai's infrastructure for developers needing unfiltered responses without complex subscription tiers.

Does the uncensored LLM refuse lawful adult, fictional, or controversial topics?

No. The model does not refuse lawful adult, fictional, security-research, or controversial topics. It is tuned to answer without content refusals for lawful adult use. The only hard content limit that always applies is sexual content involving minors.

How much does it cost to use the API for token usage?

The price is $0.15 per 1M input tokens and $0.50 per 1M output tokens. Prepaid credit is charged by real token usage. Errors and refusals are free, with no monthly fee or subscription required for access.

Which payment methods do you accept?

Crypto only: USDT on TRC20 or USDC on Base, any whole amount from $20 to $500. Bonus credit applies from $50.

What is the context window size and max output length per request?

The context window is 100,000 tokens for both prompt and completion combined. The maximum output is 16,000 tokens per request, or 2,048 tokens if max_tokens is not explicitly set in your API call parameters.

Are there rate limits on requests per minute or concurrent connections?

Yes, you get 300 requests per minute per key and 8 simultaneous requests. The request body limit is 8 MB. You can have one active key per account, and generating a new key replaces the old one.

Get your API key now

Register, copy your key, and update your base URL. That is all the configuration required.

Start now