Create a message (Anthropic-compatible)

POST

/messages

curl --request POST \
  --url https://api.mixen.ai/v1/messages \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{ "model": "example", "max_tokens": 1, "messages": [ {} ], "system": [ {} ], "tools": [ {} ], "tool_choice": {}, "temperature": 1, "top_p": 1, "top_k": 1, "stream": false, "stop_sequences": [ "example" ], "thinking": {}, "provider": {}, "service_tier": "example", "metadata": {} }'

Anthropic Messages API compatible endpoint for Claude Code / Anthropic SDK. Streaming: SSE events message_start/content_block_*/message_delta/message_stop.

Authorizations

• ApiKeyAuth

Request Body^required

Media typeapplication/json

AnthropicMessagesRequest

object

model

required

Model

string

max_tokens

required

Max Tokens

integer

>= 1

messages

required

Messages

Array<object>

object

key

additional properties

any

system

Any of:

string

string

Array<object>

Array<object>

object

key

additional properties

any

null

null

tools

Any of:

Array<object>

Array<object>

object

key

additional properties

any

null

null

tool_choice

Any of:

object

object

key

additional properties

any

null

null

temperature

Any of:

number

number

null

null

top_p

Any of:

number

number

<= 1

null

null

top_k

Any of:

integer

integer

null

null

stream

Stream

boolean

stop_sequences

Any of:

Array<string>

Array<string>

null

null

thinking

Any of:

object

object

key

additional properties

any

null

null

provider

Any of:

object

object

key

additional properties

any

null

null

service_tier

Any of:

string

string

null

null

metadata

Any of:

object

object

key

additional properties

any

null

null

Responses

200

Successful Response

Media typeapplication/json

Example^generated

example

422

Validation Error

Media typeapplication/json

HTTPValidationError

object

detail

Detail

Array<object>

ValidationError

object

loc

required

Location

Array

msg

required

Message

string

type

required

Error Type

string

input

Input

ctx

Context

object

Example^generated

{
  "detail": [
    {
      "loc": [
        "example"
      ],
      "msg": "example",
      "type": "example",
      "input": "example",
      "ctx": {}
    }
  ]
}