Kimi K3 - OpenAI-Compatible API

curl --request POST \
  --url https://direct.evolink.ai/v1/chat/completions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "kimi-k3",
  "messages": [
    {
      "role": "user",
      "content": "Introduce Kimi K3 in three sentences."
    }
  ]
}
'

{
  "id": "<string>",
  "object": "chat.completion",
  "created": 123,
  "model": "kimi-k3",
  "choices": [
    {
      "index": 123,
      "message": {
        "content": "<string>",
        "reasoning_content": "<string>",
        "tool_calls": [
          {
            "id": "<string>",
            "type": "function",
            "function": {
              "name": "<string>",
              "arguments": "<string>"
            }
          }
        ],
        "tool_call_id": "<string>"
      }
    }
  ],
  "usage": {
    "prompt_tokens": 123,
    "completion_tokens": 123,
    "total_tokens": 123,
    "prompt_tokens_details": {
      "cached_tokens": 123
    },
    "completion_tokens_details": {
      "reasoning_tokens": 123
    }
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>"
  }
}

POST

chat

completions

curl --request POST \
  --url https://direct.evolink.ai/v1/chat/completions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "kimi-k3",
  "messages": [
    {
      "role": "user",
      "content": "Introduce Kimi K3 in three sentences."
    }
  ]
}
'

{
  "id": "<string>",
  "object": "chat.completion",
  "created": 123,
  "model": "kimi-k3",
  "choices": [
    {
      "index": 123,
      "message": {
        "content": "<string>",
        "reasoning_content": "<string>",
        "tool_calls": [
          {
            "id": "<string>",
            "type": "function",
            "function": {
              "name": "<string>",
              "arguments": "<string>"
            }
          }
        ],
        "tool_call_id": "<string>"
      }
    }
  ],
  "usage": {
    "prompt_tokens": 123,
    "completion_tokens": 123,
    "total_tokens": 123,
    "prompt_tokens_details": {
      "cached_tokens": 123
    },
    "completion_tokens_details": {
      "reasoning_tokens": 123
    }
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>"
  }
}

{
  "error": {
    "message": "<string>",
    "type": "<string>",
    "code": "<string>"
  }
}

BaseURL: The default BaseURL is https://direct.evolink.ai, which has better support for text models and long-lived connections. https://api.evolink.ai is the primary endpoint for multimodal services and serves as a fallback address for text models.

Authorizations

Authorization

string

header

required

##All APIs require Bearer Token authentication##

Get API Key:

Visit API Key Management Page to get your API Key

Add to request header:

Authorization: Bearer YOUR_API_KEY

Body

application/json

model

enum<string>

required

Model ID.

Available options:

kimi-k3

messages

object[]

required

Conversation messages. For multi-turn conversations, include complete historical assistant messages.

Minimum array length: 1

Show child attributes

max_completion_tokens

integer

default:131072

Maximum number of tokens allowed for the generated content. The default for Kimi K3 is 131,072 and the maximum is 1,048,576. Reasoning tokens count toward this limit.

Required range: 1 <= x <= 1048576

reasoning_effort

enum<string>

default:max

Reasoning effort. Kimi K3 always performs reasoning and currently supports only max.

Available options:

max

stream

boolean

default:false

Whether to return the response as an SSE stream.

stream_options

object

Streaming response options. These options apply only when stream=true and do not change token prices or generated token counts.

Show child attributes

tools

object[]

Functions that the model may call.

Maximum array length: 128

Show child attributes

tool_choice

Controls whether the model calls tools or forces a specific function call.

Available options:

auto,

none,

required

Response

Chat completion response; streaming requests return an SSE event stream

string

object

string

Example:

"chat.completion"

created

integer

model

string

Example:

"kimi-k3"

choices

object[]

Show child attributes

usage

object

Show child attributes

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Image Series

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Text Series

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Kimi K3 - OpenAI-Compatible API

Authorizations

Body

Response