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HiAPI

HiAPI provides Responses and Chat Completions for text models and an asynchronous task API for image, video, and audio generation.

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-26T11:56:58.533Z. Cached copy · Source on hiapi.ai

<!-- Generated from openapi/hiapi.json by scripts/generate-llms.mjs. Do not edit manually. -->
# HiAPI

> HiAPI provides Responses and Chat Completions for text models and an asynchronous task API for image, video, and audio generation.

API base URL: https://api.hiapi.ai
Documentation: https://www.hiapi.ai/docs/

## Choose an integration

- [DeepSeek V4.1 Flash](https://www.hiapi.ai/docs/models/text/deepseek-v4-1-flash/): deepseek-v4.1-flash; POST /v1/responses + Chat Completions; none/low/high/max reasoning, text and image input, stateless text and SSE. Claude Opus 5.5 reference: https://www.hiapi.ai/docs/models/text/claude-opus-5-5/ (online in the live model catalog).
- Text Chat Completions: [Grok 4.6](https://www.hiapi.ai/docs/models/text/grok-4-6/) supports streaming, JSON objects, tools, and low/medium/high/xhigh reasoning (high default; image input and Responses are outside the initial contract); [Kimi K3](https://www.hiapi.ai/docs/models/text/kimi-k3/) supports 1M context, always-on low/high/max reasoning, streaming, JSON, tools, and cache reads.
- Text API: use Responses or compatible Chat Completions according to the model page.
- Media API: use the asynchronous task workflow for image, video, and audio models.
- Remote MCP: connect to https://mcp.hiapi.ai/mcp with the API key as a Bearer token. It exposes 9 live-catalog tools: `generate_image`, `edit_image`, `generate_video`, `generate_audio`, `generate_text`, `get_task_status`, `list_models`, `get_model_capabilities`, and `get_pricing`. Media generation uses `/v1/tasks`; text generation uses the model's Chat Completions or Responses route.
- Agent Skills: browse https://github.com/HiAPIAI/hiapi-skills.

## Authentication

```http
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json
```

Create or rotate keys at https://www.hiapi.ai/en/dashboard/api-keys.

## Create a response

`POST https://api.hiapi.ai/v1/responses`

Use this endpoint only for models whose page lists Responses support. Required fields are `model` and `input`; reasoning, storage, tools, and streaming semantics remain model-specific.

```json
{
  "model": "deepseek-v4-pro",
  "input": "Explain the most important tradeoff.",
  "reasoning": {
    "effort": "high"
  },
  "stream": false
}
```

## Create a chat completion

`POST https://api.hiapi.ai/v1/chat/completions`

Required fields are `model` and `messages`. Set `stream: true` for Server-Sent Events. Read the answer from `choices[0].message.content` and token billing details from `usage`.

```json
{
  "model": "deepseek-v4-flash",
  "messages": [
    {
      "role": "user",
      "content": "Explain sparse attention in three sentences."
    }
  ],
  "stream": false
}
…

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