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OpenAI-compatible API

Generate without constraints using an unrestricted LLM API

As an uncensored LLM API, generate high-quality text with zero content filters. Easily integrate with pay as you go pricing.

Features provided

  • Compatibility with standard APIs

    OpenAI-compatible endpoints allow you to use existing SDKs and tools as-is. Only the Base URL needs to be changed.

  • Advanced generation features

    Supports streaming output and function calling. Enables real-time processing and integration with external systems.

  • Transparent pricing

    No monthly fee constraints. Pay as you go: $0.25 per 1M input tokens and $1.00 per 1M output tokens.

  • Privacy-focused design

    Prompts are not used for model training. Create an account with only email and password; usage history is not published externally.

  • Flexible billing plans

    Prepaid balance billing; the balance never expires. Bonus credit is granted for top ups of $50 or more.

  • Fast deployment and limits

    API keys are displayed immediately upon registration, allowing instant use. Stable operation is possible within a limit of 300 requests per minute.

How to use

  1. Account registration

    Enter your email and password and register from the "Get API key" page.

  2. Get API key

    An API key is issued as soon as registration is complete; copy and keep it.

  3. API integration and generation

    Set the Base URL to "https://api.mukenetsuapi.com/v1」に設定し、モデルID「uncensored」でリクエストを送信します。

Use cases

  • Large-scale data analysis

    Leverage the 100,000 token context window to process long documents and large log data at once for summarization and analysis. Build data analysis pipelines by integrating with external tools.

  • Creative writing

    Flexible content filters make it suitable for mature fiction and experimental stories. Streaming enables real-time display to users.

  • AI agent development

    Supports function calling, making it ideal for developing autonomous agents that call external APIs and execute complex logic. The OpenAI-compatible specification makes integration with existing frameworks easy.

  • Security research

    Use it for prompt testing to verify LLM behavior without constraints, or to check responses in extreme cases. Investigate model behavior on specific topics in a free environment.

What is Mukenetsu AI?

Mukenetsu AI is an API service hosting large language models with minimal content restrictions. Unlike typical chatbots, it provides an OpenAI-compatible standard endpoint for immediate integration into existing infrastructure. It offers only one model, "uncensored", eliminating the need for complex model selection.

This API specializes in text generation and processing. It does not generate images, audio, or video, nor does it generate embedding vectors. It also lacks fine-tuning capabilities. Therefore, it offers efficient operation without the overhead of unnecessary features for developers seeking a simple architecture focused on text generation. Designed with privacy in mind, the prompts you send are never reused as training data for the model.

Key features: streaming and function calling

For applications prioritizing real-time performance, it supports streaming output via Server-Sent Events (SSE). This allows you to display results incrementally without degrading the user experience, even during large-scale text generation.

It also supports Function Calling (tool calling), allowing the model to call external tools and functions. This enables you to extend the LLM from a simple text generator into an autonomous agent capable of executing database queries, web searches, and calculations. By adopting an OpenAI-compatible JSON schema, you can integrate it directly using existing OpenAI SDKs or third-party libraries.

Transparent pricing and bonuses

No subscriptions or monthly base fees. We use pay as you go, charging only for tokens used. Prepaid credit never expires. Input is $0.25 per 1 million tokens, output is $1.00 per 1 million tokens. Top up with cryptocurrency (USDT, USDC). Top up $50 or more for 5% bonus credit, $100 or more for 10% bonus credit.

New accounts receive $0.50 in free trial credit valid for 7 days, without requiring a credit card. This allows you to evaluate the actual API performance and latency with zero risk. Billing is explicit, with no hidden costs.

Privacy and data usage

Privacy is a core pillar of this service. Account creation requires only an email and password; phone number and credit card are not mandatory. Data sent via API is not used for model fine-tuning or training, but kept as your data. This makes it a reliable choice for handling corporate secrets or personal information with AI.

It also has clear rules for content filtering. Sexual content involving minors is always blocked at the system level regardless of the model's judgment. Other constraints are minimal, allowing free generation of adult content or specific topics.

Ease of integration for developers

The API endpoint is https://api.mukenetsuapi.com/v1」に設定し、モデルIDとして「uncensored」を指定するだけです。Base. With just the URL and API key change, you can integrate with OpenAI-compatible clients and SDKs. The maximum request body size is 8 MB, with a rate limit of 300 requests per minute. There is 1 API key per account; regenerate it as needed to invalidate the old key.

Mukenetsu AI is not for everyone

Our API specializes in text generation. It is not suitable for image generation, voice synthesis, video generation, or Embeddings. If you need automatic routing among multiple models or fine-tuning, consider other platforms. It is optimized for developers, startups, and indie developers who value flexibility and customizability, rather than large enterprises requiring SLA guarantees or SOC2/HIPAA/ISO certifications. It is also not suitable for high-frequency batch processing or on-premise deployment on specific hardware.

Frequently asked questions

How do I get an API key?

Create an account using your email address and password on the "Get API key" page. Your API key will be displayed immediately after registration. No phone number or credit card registration is required.

How does billing work?

There are no monthly fees; billing is based on usage (pay as you go). Your topped-up balance never expires, and you can top up after using it up to continue using the service.

Is streaming supported?

Yes, we support streaming output via Server-Sent Events (SSE). You can display text generation results in real time.

What is the model's context window size?

Handles up to 100,000 tokens combined for prompt and generated text. Ideal for long documents or maintaining conversation history.

How is data privacy handled?

Prompts sent via the API are never used as training data for the model. Account creation requires only a password and email, ensuring a privacy-respecting design.

API key is available with 1 form

Account creation, copy key, change base URL. That's all, setup is complete.

Get API key