# API Reference Overview - Documentation > For the complete documentation index, see [llms.txt](/llms.txt). Markdown is available with `Accept: text/markdown` and `.md` URL variants. Source: /docs/api-reference/api-reference-overview # API Reference Overview ## [​](#welcome-to-novita-ai-api-reference) Welcome to Novita AI API Reference This documentation provides comprehensive reference for all Novita AI APIs. Our APIs are organized into several categories: ## [​](#base-urls) Base URLs All API requests should be made to: ``` https://api.novita.ai ``` OpenAI-Compatible Endpoints: ``` https://api.novita.ai/openai ``` ## [​](#api-groups) API Groups ### [​](#basic-apis) Basic APIs Fundamental APIs for authentication, billing, and account management. EndpointDescription[Authentication](/docs/api-reference/basic-authentication)API key authentication[Error Codes](/docs/api-reference/basic-error-code)Unified error response format[Get User Balance](/docs/api-reference/basic-get-user-balance)Query account balance[Query Monthly Bill](/docs/api-reference/basic-query-monthly-bill)Query monthly billing[Query Usage-Based Billing](/docs/api-reference/basic-query-usage-based-billing)Query usage-based billing[Query Fixed-Term Billing](/docs/api-reference/basic-query-fixed-term-billing)Query fixed-term billing ### [​](#model-apis) Model APIs #### [​](#llm-apis) LLM APIs Large Language Model APIs with OpenAI compatibility. EndpointDescription[Create Chat Completion](/docs/api-reference/model-apis-llm-create-chat-completion)Create a chat completion[Create Completion](/docs/api-reference/model-apis-llm-create-completion)Create a completion[Create Embeddings](/docs/api-reference/model-apis-llm-create-embeddings)Create embeddings[Create Rerank](/docs/api-reference/model-apis-llm-create-rerank)Rerank search results[List Models](/docs/api-reference/model-apis-llm-list-models)List available models[Retrieve Model](/docs/api-reference/model-apis-llm-retrieve-model)Get model details Batch Operations: EndpointDescription[Create Batch](/docs/api-reference/model-apis-llm-create-batch)Create a batch job[Retrieve Batch](/docs/api-reference/model-apis-llm-retrieve-batch)Get batch job status[Cancel Batch](/docs/api-reference/model-apis-llm-cancel-batch)Cancel a batch job[List Batches](/docs/api-reference/model-apis-llm-list-batches)List all batch jobs[Upload Batch Input File](/docs/api-reference/model-apis-llm-upload-batch-input-file)Upload file for batch[List Files](/docs/api-reference/model-apis-llm-list-files)List uploaded files[Query File](/docs/api-reference/model-apis-llm-query-file)Get file metadata[Delete File](/docs/api-reference/model-apis-llm-delete-file)Delete a file[Retrieve File Content](/docs/api-reference/model-apis-llm-retrieve-file-content)Get file content #### [​](#image-audio-and-video-apis) Image, Audio and Video APIs Multimodal AI APIs for content generation and editing. Core Endpoints: EndpointDescription[Webhook](/docs/api-reference/model-apis-webhook)Webhook configuration[Get Model](/docs/api-reference/model-apis-get-model)Query available models[Task Result](/docs/api-reference/model-apis-task-result)Get async task results Image Generation: EndpointDescription[Text to Image](/docs/api-reference/model-apis-txt2img)Generate images from text[Image to Image](/docs/api-reference/model-apis-img2img)Transform existing images[Reimagine](/docs/api-reference/model-apis-reimagine)Reimagine compositions[FLUX.1 Schnell](/docs/api-reference/model-apis-flux-1-schnell)Fast image generation[Seedream 3.0](/docs/api-reference/model-apis-seedream-3-0-t2i)High-quality generation[Seedream 4.0](/docs/api-reference/model-apis-seedream-4-0)Advanced generation[Qwen Image](/docs/api-reference/model-apis-qwen-image-txt2img)Qwen image generation Image Editing: EndpointDescription[Upscale](/docs/api-reference/model-apis-upscale)Image upscaling[Remove Background](/docs/api-reference/model-apis-remove-background)Background removal[Replace Background](/docs/api-reference/model-apis-replace-background)Background replacement[Inpainting](/docs/api-reference/model-apis-inpainting)Image inpainting[Image to Prompt](/docs/api-reference/model-apis-image-to-prompt)Reverse engineering Video Generation: EndpointDescription[Text to Video](/docs/api-reference/model-apis-txt2video)Generate videos from text[Image to Video](/docs/api-reference/model-apis-img2video)Animate images[Hunyuan Video Fast](/docs/api-reference/model-apis-hunyuan-video-fast)Fast video generation[Wan 2.5 T2V Preview](/docs/api-reference/model-apis-wan-2.5-t2v-preview)Wan 2.5 preview[Kling V2.1 Master](/docs/api-reference/model-apis-kling-v2.1-t2v-master)Kling V2.1 master[Minimax Hailuo 02](/docs/api-reference/model-apis-minimax-hailuo-02)Minimax Hailuo[Vidu Q1](/docs/api-reference/model-apis-vidu-q1-text2video)Vidu Q1 generation Audio: EndpointDescription[Minimax Speech 02](/docs/api-reference/model-apis-minimax-speech-02-hd)Minimax TTS HD[Minimax Speech 2.8](/docs/api-reference/model-apis-minimax-speech-2.8-hd)Minimax 2.8 HD[GLM TTS](/docs/api-reference/model-apis-glm-tts)GLM text-to-speech[GLM ASR](/docs/api-reference/model-apis-glm-asr)GLM speech recognition ### [​](#gpu-apis) GPU APIs GPU instance management and serverless GPU endpoints. #### [​](#gpu-instance) GPU Instance EndpointDescription[Create Instance](/docs/api-reference/gpu-instance-create-instance)Create GPU instance[List Instances](/docs/api-reference/gpu-instance-list-instances)List all instances[Get Instance](/docs/api-reference/gpu-instance-get-instance)Get instance details[Start Instance](/docs/api-reference/gpu-instance-start-instance)Start instance[Stop Instance](/docs/api-reference/gpu-instance-stop-instance)Stop instance[Delete Instance](/docs/api-reference/gpu-instance-delete-instance)Delete instance Template Management: EndpointDescription[Create Template](/docs/api-reference/gpu-instance-create-template)Create template[List Templates](/docs/api-reference/gpu-instance-list-templates)List templates[Get Template](/docs/api-reference/gpu-instance-get-template)Get template details Product & Pricing: EndpointDescription[List Products](/docs/api-reference/gpu-instance-list-products)List GPU products #### [​](#serverless-gpus) Serverless GPUs EndpointDescription[Create Endpoint](/docs/api-reference/serverless-create-endpoint)Create endpoint[List Endpoint](/docs/api-reference/serverless-list-endpoint)List endpoints[Get Endpoint](/docs/api-reference/serverless-get-endpoint)Get endpoint details[Update Endpoint](/docs/api-reference/serverless-update-endpoint)Update endpoint[Delete Endpoint](/docs/api-reference/serverless-delete-endpoint)Delete endpoint ## [​](#quick-start) Quick Start ### [​](#1-get-your-api-key) 1. Get Your API Key Visit the [settings page](https://novita.ai/settings/key-management) to create and manage your API keys. ### [​](#2-make-your-first-request) 2. Make Your First Request ``` curl --location 'https://api.novita.ai/v1/models' \ --header 'Authorization: Bearer {{API Key}}' ``` ### [​](#3-explore-sdks) 3. Explore SDKs We provide official SDKs for popular languages: - [Python SDK](/docs/guides/model-apis-sdks#python) - [JavaScript/TypeScript SDK](/docs/guides/model-apis-sdks#javascripttypescript) ## [​](#authentication) Authentication All API requests require authentication using Bearer tokens. Include your API key in the Authorization header: ``` Authorization: Bearer {{API Key}} ``` See [Authentication](/docs/api-reference/basic-authentication) for details. ## [​](#error-handling) Error Handling Novita AI uses standard HTTP status codes and returns errors in a unified format. See [Error Codes](/docs/api-reference/basic-error-code) for complete error reference. ## [​](#common-use-cases) Common Use Cases User QueryGo To”How to get started?”[Quick Start](#quick-start) + [Authentication](/docs/api-reference/basic-authentication)”API not working, error 401”[Error Codes](/docs/api-reference/basic-error-code)”Generate images from text”[Text to Image](/docs/api-reference/model-apis-txt2img)”Create chatbot with LLM”[Chat Completion](/docs/api-reference/model-apis-llm-create-chat-completion)”Generate videos”[Text to Video](/docs/api-reference/model-apis-txt2video)”Deploy GPU instance”[Create Instance](/docs/api-reference/gpu-instance-create-instance)”Check my balance”[Get User Balance](/docs/api-reference/basic-get-user-balance)”OpenAI compatible API”[LLM API Guide](/docs/guides/llm-api) ## [​](#need-help) Need Help? - [Discord Community](https://discord.gg/YyPFAzwp7P) - [Email Support](mailto:support@novita.ai) - [Console](https://novita.ai/console) Last modified on April 3, 2026