Tudo o que você precisa para integrar o API in One ao seu aplicativo.
Autenticação
Todas as requisições da API requerem um token Bearer no cabeçalho Authorization. Você pode gerenciar suas chaves API no painel de controle.
http
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Authorization: Bearer aio_your_api_key_here
Obtenha sua chave API: Crie sua chave API gratuita na página de Chaves API do seu painel. Novas contas recebem créditos bônus para explorar a plataforma.
URL Base
https://apiin.one/api/v1
Endpoints da API
Click each endpoint to see full parameter details, example requests, and response format.
POST/api/v1/images/generationsImage generation
Generate images using AI models. Specify the model in the request body. The model field determines which image generation engine is used. Returns a task_id for async polling.
Request Body Parameters
Body ParametersJSON
model:string
Model slug. See Supported Models below for available options.
prompt:string
Text description of the image to generate (3–5000 chars)
aspect_ratio:optional string
Output aspect ratio (e.g. 1:1, 16:9, 9:16) Defaults to 1:1.
type:optional string
Generation mode. Model-specific, e.g. pro/flex for Flux 2, text-to-image/edit for Seedream
resolution:optional string
Output resolution. Model-specific, e.g. 1K/2K for Flux 2
quality:optional string
Quality level. Model-specific, e.g. medium/high for GPT Image
input_urls:optional array
Array of image URLs for image-to-image or editing mode
negative_prompt:optional string
Elements to avoid in the generated image (not all models support this)
seed:optional number
Random seed for reproducibility (not all models support this)
curl-X POST https://apiin.one/api/v1/images/generations\
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-H"Authorization: Bearer aio_your_api_key"\
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-H"Content-Type: application/json"\
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-d '{
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"model": "flux-2",
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"prompt": "A serene Japanese garden with cherry blossoms",
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"aspect_ratio": "16:9",
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"type": "pro",
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"resolution": "1K"
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}'
Example Response
json
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{
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"code": 200,
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"message": "success",
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"data": {
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"task_id": "n41xxxx_flux2",
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"status": "IN_PROGRESS"
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}
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}
POST/api/v1/videos/generationsVideo generation
Generate videos using AI models. Supports text-to-video and image-to-video. The model field determines which video engine is used. Returns a task_id for async polling.
Request Body Parameters
Body ParametersJSON
model:string
Model slug. See Supported Models below for available options.
prompt:string
Text description of the video (max 2500 chars for most models)
image:optional string
Image URL for image-to-video mode. Auto-detected by most models.
mode:optional string
Quality mode. Model-specific, e.g. std/pro for Kling 3
duration:optional number | string
Video duration in seconds. Model-specific (Kling 3: 3–15s, others vary) Defaults to 5.
aspect_ratio:optional string
Output aspect ratio (1:1, 9:16, 16:9) Defaults to 16:9.
resolution:optional string
Output resolution. Model-specific, e.g. 480p, 720p, 1080p
sound:optional boolean
Enable audio generation in the video (Kling 3) Defaults to true.
generateAudio:optional boolean
Enable audio generation (Seedance) Defaults to false.
generate_audio_switch:optional boolean
Enable audio generation (PixVerse) Defaults to false.
curl-X POST https://apiin.one/api/v1/videos/generations\
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-H"Authorization: Bearer aio_your_api_key"\
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-H"Content-Type: application/json"\
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-d '{
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"model": "kling-3",
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"prompt": "A golden retriever running through sunflowers at sunset",
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"mode": "std",
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"duration": 5,
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"aspect_ratio": "16:9",
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"sound": true
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}'
Example Response
json
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{
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"code": 200,
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"message": "success",
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"data": {
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"task_id": "n75xxxx_kling3",
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"status": "IN_PROGRESS"
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}
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}
POST/api/v1/audio/musicMusic generation
Generate original music from text descriptions. Suno supports both "inspiration mode" (text description) and "custom mode" (lyrics + style + title). MiniMax Music supports lyrics-driven generation. Returns a task_id for async polling.
Request Body Parameters
Body ParametersJSON
model:string
Model: suno (defaults to chirp-v3-5) or minimax-music
prompt:optional string
Lyrics (Suno custom mode) or style description (MiniMax). Max 3000 chars for Suno v3.5/v4, 5000 for v4.5+.
gpt_description_prompt:optional string
Text description for Suno inspiration mode. Max 400 chars.
style:optional string
Musical style/genre (Suno custom mode). Max 1000 chars.
title:optional string
Song title (Suno). Max 80 characters.
make_instrumental:optional boolean
Generate instrumental only, no vocals (Suno) Defaults to false.
"prompt": "Verse 1: Walking down the street\nChorus: Summer dreams",
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"style": "pop, upbeat, electronic",
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"title": "Summer Dreams",
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"make_instrumental": false
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}'
Example Response
json
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{
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"code": 200,
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"message": "success",
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"data": {
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"task_id": "n7xxxx_suno",
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"status": "IN_PROGRESS"
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}
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}
POST/api/v1/audio/speechText to speech
Convert text to natural-sounding multi-voice dialogue speech using ElevenLabs V3. Supports 30+ languages and automatic language detection. Returns a task_id for async polling.
Request Body Parameters
Body ParametersJSON
model:string
Model slug: elevenlabs-v3
dialogue:array
Array of dialogue items: [{text: ..., voice: ...}]. Voice is optional.
stability:optional number
Voice stability (0–1). Lower = more variation, higher = more consistent. Defaults to 0.5.
language_code:optional string
Language code (e.g. en, zh, ja) or auto for detection Defaults to auto.
curl-X POST https://apiin.one/api/v1/audio/speech\
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-H"Authorization: Bearer aio_your_api_key"\
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-H"Content-Type: application/json"\
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-d '{
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"model": "elevenlabs-v3",
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"dialogue": [
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{"text": "Hello, welcome to API in One.", "voice": "narrator"},
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{"text": "Thank you! Tell me more.", "voice": "user"}
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],
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"stability": 0.5,
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"language_code": "auto"
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}'
Example Response
json
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{
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"code": 200,
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"message": "success",
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"data": {
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"task_id": "n58xxxx_tts",
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"status": "IN_PROGRESS"
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}
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}
POST/api/v1/chat/completionsChat / LLM
Chat completions in OpenAI-compatible format. Supports SSE streaming by default. Powered by Gemini (defaults to Gemini 3 Flash). Returns a synchronous or streamed response (not async task).
Request Body Parameters
Body ParametersJSON
model:string
Model slug: gemini. Backend defaults to Gemini 3 Flash.
messages:array
Array of message objects: [{role: user|assistant|system|developer, content: ...}]
stream:optional boolean
Enable SSE streaming. Responses are sent as Server-Sent Events. Defaults to true.
include_thoughts:optional boolean
Include model reasoning/thinking steps in response Defaults to true.
reasoning_effort:optional string
Reasoning depth: low or high Defaults to high.
tools:optional array
Array of tool definitions for function calling (OpenAI-compatible format)
response_format:optional object
Force structured output format (e.g. {type: json_object})
Remove image backgrounds instantly with AI precision. No model field required. 1 credit per image. Returns a task_id for async polling.
Request Body Parameters
Body ParametersJSON
image:string
URL of the image to remove background from
Example Request
bash
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curl-X POST https://apiin.one/api/v1/images/tools/remove-bg\
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-H"Authorization: Bearer aio_your_api_key"\
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-H"Content-Type: application/json"\
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-d '{
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"image": "https://example.com/photo.jpg"
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}'
Example Response
json
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{
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"code": 200,
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"message": "success",
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"data": {
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"task_id": "n19xxxx_bgremove"
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}
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}
POST/api/v1/images/tools/face-swapFace swap
Swap faces in images with natural-looking results. Requires a target image (body/scene) and a source face image. 4 credits per swap. Returns a task_id for async polling.
Request Body Parameters
Body ParametersJSON
image:string
URL of the target image (the body/scene to modify)
face_image:string
URL of the source face image (the face to swap in)
target_index:optional number
Face index in target image if multiple faces detected (0–10) Defaults to 0.
output_format:optional string
Output format: jpeg, png, or webp Defaults to jpeg.
Example Request
bash
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curl-X POST https://apiin.one/api/v1/images/tools/face-swap\
Remove or replace video backgrounds with AI. Supports optional custom background image replacement. 10 credits per video. Returns a task_id for async polling.
Request Body Parameters
Body ParametersJSON
video:string
URL of the video to process
background_image:optional string
URL of a custom background image to replace with
Example Request
bash
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curl-X POST https://apiin.one/api/v1/videos/tools/bg-remover\
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-H"Authorization: Bearer aio_your_api_key"\
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-H"Content-Type: application/json"\
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-d '{
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"video": "https://example.com/talking-head.mp4"
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}'
Example Response
json
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{
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"code": 200,
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"message": "success",
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"data": {
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"task_id": "n53xxxx_vbgr",
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"status": "IN_PROGRESS"
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}
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}
GET/api/v1/tasks/{task_id}Check task status
Poll the status of any asynchronous generation task. The task_id is returned by all generation endpoints (except chat/completions). Poll until status is "SUCCESS" or "FAILED".
Request Body Parameters
Body ParametersJSON
task_id:string (path)
The task ID returned by the generation endpoint (e.g. n41xxxx_flux2)
Example Request
bash
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curlhttps://apiin.one/api/v1/tasks/n41xxxx_flux2\
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-H"Authorization: Bearer aio_your_api_key"
Example Response
json
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{
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"code": 200,
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"message": "success",
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"data": {
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"task_id": "n41xxxx_flux2",
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"status": "SUCCESS",
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"consumed_credits": 5,
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"error_message": null,
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"created_at": "2026-02-25T12:00:00Z",
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"request": {
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"model": "flux-2",
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"prompt": "A serene Japanese garden..."
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},
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"response": [
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"https://cdn.example.com/generated-image.png"
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]
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}
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}
Formato de Requisição
Todas as requisições usam corpo JSON com um campo 'model' obrigatório para especificar qual modelo de IA usar. Parâmetros adicionais variam por modelo.
json
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{
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"model": "flux-2",
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"prompt": "A beautiful landscape",
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"...other_params": "..."
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}
O parâmetro 'model' é sempre obrigatório. Visite a página de documentação de cada modelo para a lista completa de parâmetros suportados.
Formato de Resposta
Tarefas Assíncronas (Imagem, Vídeo, Música, Voz)
Para modelos de geração de conteúdo, a API retorna um ID de tarefa imediatamente. Consulte o endpoint de status para verificar quando a tarefa está concluída.
Initial response when task is created.
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{
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"id": "task_abc123",
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"status": "pending",
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"model": "kling-3",
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"created_at": "2026-02-24T12:00:00Z"
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}
Respostas Síncronas (Chat)
Respostas de chat são retornadas diretamente em uma única requisição, seguindo o formato compatível com OpenAI.
json
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{
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"id": "chatcmpl_xyz",
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"model": "gemini",
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"choices": [
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{
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"message": {
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"role": "assistant",
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"content": "..."
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}
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}
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],
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"usage": {
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"prompt_tokens": 12,
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"completion_tokens": 156,
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"total_tokens": 168
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},
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"credits_consumed": 2
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}
Tratamento de Erros
endpoints_desc
json
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{
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"error": {
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"code": 401,
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"message": "Invalid API key",
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"type": "authentication_error"
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}
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}
Body ParametersJSON
400:optional invalid_request
Parâmetros de requisição inválidos. Verifique a documentação do modelo para campos obrigatórios.
401:optional authentication_error
Chave API ausente, inválida ou revogada.
402:optional insufficient_credits
Sua conta não tem créditos suficientes. Compre mais créditos para continuar.
404:optional not_found
O recurso solicitado (tarefa, modelo) não foi encontrado.
429:optional rate_limit
Limite de taxa excedido. O padrão é 60 requisições por minuto.
500:optional server_error
Erro interno do servidor. Por favor, tente novamente após um breve intervalo.
Início Rápido
1. Obtenha sua chave API
Cadastre-se e crie uma chave API no seu painel. Contas gratuitas incluem créditos bônus.
2. Faça sua primeira requisição
bash
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curl-X POST https://apiin.one/api/v1/images/generations\
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-H"Authorization: Bearer aio_your_key"\
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-H"Content-Type: application/json"\
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-d '{
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"model": "flux-2",
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"prompt": "A serene Japanese garden with cherry blossoms"
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}'
3. Verifique o status da tarefa (modelos assíncronos)
bash
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curlhttps://apiin.one/api/v1/tasks/task_abc123\
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-H"Authorization: Bearer aio_your_key"
4. Explore mais modelos
Navegue pelo nosso diretório de modelos para encontrar o modelo de IA perfeito para seu caso de uso.
