Create an Anthropic message

curl --request POST \
  --url https://api.sailresearch.com/v1/messages \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "zai-org/GLM-5.3",
  "max_tokens": 300,
  "messages": [
    {
      "role": "user",
      "content": "Give me a short launch checklist for an API integration."
    }
  ]
}
'

import requests

url = "https://api.sailresearch.com/v1/messages"

payload = {
    "model": "zai-org/GLM-5.3",
    "max_tokens": 300,
    "messages": [
        {
            "role": "user",
            "content": "Give me a short launch checklist for an API integration."
        }
    ]
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    model: 'zai-org/GLM-5.3',
    max_tokens: 300,
    messages: [
      {
        role: 'user',
        content: 'Give me a short launch checklist for an API integration.'
      }
    ]
  })
};

fetch('https://api.sailresearch.com/v1/messages', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.sailresearch.com/v1/messages",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'model' => 'zai-org/GLM-5.3',
    'max_tokens' => 300,
    'messages' => [
        [
                'role' => 'user',
                'content' => 'Give me a short launch checklist for an API integration.'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.sailresearch.com/v1/messages"

	payload := strings.NewReader("{\n  \"model\": \"zai-org/GLM-5.3\",\n  \"max_tokens\": 300,\n  \"messages\": [\n    {\n      \"role\": \"user\",\n      \"content\": \"Give me a short launch checklist for an API integration.\"\n    }\n  ]\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.sailresearch.com/v1/messages")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"model\": \"zai-org/GLM-5.3\",\n  \"max_tokens\": 300,\n  \"messages\": [\n    {\n      \"role\": \"user\",\n      \"content\": \"Give me a short launch checklist for an API integration.\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.sailresearch.com/v1/messages")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"model\": \"zai-org/GLM-5.3\",\n  \"max_tokens\": 300,\n  \"messages\": [\n    {\n      \"role\": \"user\",\n      \"content\": \"Give me a short launch checklist for an API integration.\"\n    }\n  ]\n}"

response = http.request(request)
puts response.read_body

{
  "id": "<string>",
  "type": "message",
  "role": "assistant",
  "content": [
    {
      "type": "text",
      "text": "<string>",
      "cache_control": {
        "type": "ephemeral"
      }
    }
  ],
  "model": "<string>",
  "stop_reason": "end_turn",
  "stop_sequence": "<string>",
  "usage": {
    "input_tokens": 123,
    "cache_creation_input_tokens": 123,
    "cache_read_input_tokens": 123,
    "output_tokens": 123
  }
}

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "<string>"
  },
  "request_id": "<string>"
}

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "<string>"
  },
  "request_id": "<string>"
}

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "<string>"
  },
  "request_id": "<string>"
}

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "<string>"
  },
  "request_id": "<string>"
}

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "<string>"
  },
  "request_id": "<string>"
}

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "<string>"
  },
  "request_id": "<string>"
}

POST

messages

Create an Anthropic message

curl --request POST \
  --url https://api.sailresearch.com/v1/messages \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "zai-org/GLM-5.3",
  "max_tokens": 300,
  "messages": [
    {
      "role": "user",
      "content": "Give me a short launch checklist for an API integration."
    }
  ]
}
'

import requests

url = "https://api.sailresearch.com/v1/messages"

payload = {
    "model": "zai-org/GLM-5.3",
    "max_tokens": 300,
    "messages": [
        {
            "role": "user",
            "content": "Give me a short launch checklist for an API integration."
        }
    ]
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    model: 'zai-org/GLM-5.3',
    max_tokens: 300,
    messages: [
      {
        role: 'user',
        content: 'Give me a short launch checklist for an API integration.'
      }
    ]
  })
};

fetch('https://api.sailresearch.com/v1/messages', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.sailresearch.com/v1/messages",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'model' => 'zai-org/GLM-5.3',
    'max_tokens' => 300,
    'messages' => [
        [
                'role' => 'user',
                'content' => 'Give me a short launch checklist for an API integration.'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.sailresearch.com/v1/messages"

	payload := strings.NewReader("{\n  \"model\": \"zai-org/GLM-5.3\",\n  \"max_tokens\": 300,\n  \"messages\": [\n    {\n      \"role\": \"user\",\n      \"content\": \"Give me a short launch checklist for an API integration.\"\n    }\n  ]\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.sailresearch.com/v1/messages")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"model\": \"zai-org/GLM-5.3\",\n  \"max_tokens\": 300,\n  \"messages\": [\n    {\n      \"role\": \"user\",\n      \"content\": \"Give me a short launch checklist for an API integration.\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.sailresearch.com/v1/messages")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"model\": \"zai-org/GLM-5.3\",\n  \"max_tokens\": 300,\n  \"messages\": [\n    {\n      \"role\": \"user\",\n      \"content\": \"Give me a short launch checklist for an API integration.\"\n    }\n  ]\n}"

response = http.request(request)
puts response.read_body

{
  "id": "<string>",
  "type": "message",
  "role": "assistant",
  "content": [
    {
      "type": "text",
      "text": "<string>",
      "cache_control": {
        "type": "ephemeral"
      }
    }
  ],
  "model": "<string>",
  "stop_reason": "end_turn",
  "stop_sequence": "<string>",
  "usage": {
    "input_tokens": 123,
    "cache_creation_input_tokens": 123,
    "cache_read_input_tokens": 123,
    "output_tokens": 123
  }
}

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "<string>"
  },
  "request_id": "<string>"
}

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "<string>"
  },
  "request_id": "<string>"
}

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "<string>"
  },
  "request_id": "<string>"
}

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "<string>"
  },
  "request_id": "<string>"
}

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "<string>"
  },
  "request_id": "<string>"
}

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "<string>"
  },
  "request_id": "<string>"
}

Authorizations

Authorization

string

header

required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Headers

anthropic-idempotency-key

string

Identifies one Messages submission within your organization and API key. Reuse the same value and request body when retrying; use a new value for new work. See Idempotency.

Maximum string length: 255

X-Sail-Completion-Window

enum<string>

Completion window for this request, for clients that cannot set metadata.completion_window in the body. A window in the body takes precedence. See Completion windows.

Available options:

asap,

balanced,

flex

Body

application/json

model

string

required

max_tokens

integer

required

Required range: x >= 1

messages

object[]

required

Minimum array length: 1

Show child attributes

system

System prompt: a string, or an array of text blocks.

temperature

number

Required range: 0 <= x <= 1

top_p

number

Required range: 0 <= x <= 1

output_config

object

Show child attributes

routing

object

Show child attributes

tools

object[]

Tool definitions the model may call. Responses include tool_use blocks; return outcomes as tool_result content blocks in a follow-up message.

tool_choice

object

Controls tool use: auto, any, tool, or none.

thinking

object

Extended thinking configuration; translated to the model's reasoning.

stream

boolean

When true, returns Anthropic Server-Sent Events after generation completes. This is not incremental token delivery.

metadata

object

Optional string metadata. completion_window controls scheduling; completion_webhook/webhook_token configure completion webhooks; supercache_write stores a reusable prompt prefix.

Show child attributes

context_management

object

Anthropic server-side context-editing config (Claude Code sends it automatically). Accepted for compatibility but ignored: Sail forwards the full context each turn.

cache_control

object

Prompt-cache breakpoint (e.g. { "type": "ephemeral" }). Accepted for Anthropic SDK compatibility and has no effect: Sail caches repeated prompt prefixes automatically, without breakpoints. Cache reads are reported in usage.cache_read_input_tokens.

Show child attributes

Response

Anthropic-compatible message response. Returns a single JSON object by default, or an Anthropic Server-Sent Events stream when stream: true.

string

required

type

enum<string>

required

Available options:

message

role

enum<string>

required

Available options:

assistant

content

object[]

required

Minimum array length: 1

Option 1
Option 2
Option 3

Show child attributes

model

string

required

stop_reason

enum<string>

required

Available options:

end_turn,

max_tokens,

tool_use,

stop_sequence,

refusal,

model_context_window_exceeded

stop_sequence

string | null

required

usage

object

required

Show child attributes

Inference APIs

Usage API

Sailbox

Tinker

SDKs

Create an Anthropic message

Authorizations

Headers

Body

Response