Anthropic Messages

Create message (Anthropic format)

curl --request POST \
  --url https://edgee.io/v1/messages \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "claude-sonnet-4.5",
  "max_tokens": 1024,
  "messages": [
    {
      "content": "<string>"
    }
  ],
  "system": "<string>",
  "stream": false,
  "tools": [
    {
      "name": "<string>",
      "input_schema": {},
      "description": "<string>"
    }
  ],
  "tool_choice": {
    "type": "auto"
  }
}
'

import requests

url = "https://edgee.io/v1/messages"

payload = {
    "model": "claude-sonnet-4.5",
    "max_tokens": 1024,
    "messages": [{ "content": "<string>" }],
    "system": "<string>",
    "stream": False,
    "tools": [
        {
            "name": "<string>",
            "input_schema": {},
            "description": "<string>"
        }
    ],
    "tool_choice": { "type": "auto" }
}
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: 'claude-sonnet-4.5',
    max_tokens: 1024,
    messages: [{content: '<string>'}],
    system: '<string>',
    stream: false,
    tools: [{name: '<string>', input_schema: {}, description: '<string>'}],
    tool_choice: {type: 'auto'}
  })
};

fetch('https://edgee.io/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://edgee.io/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' => 'claude-sonnet-4.5',
    'max_tokens' => 1024,
    'messages' => [
        [
                'content' => '<string>'
        ]
    ],
    'system' => '<string>',
    'stream' => false,
    'tools' => [
        [
                'name' => '<string>',
                'input_schema' => [
                                
                ],
                'description' => '<string>'
        ]
    ],
    'tool_choice' => [
        'type' => 'auto'
    ]
  ]),
  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://edgee.io/v1/messages"

	payload := strings.NewReader("{\n  \"model\": \"claude-sonnet-4.5\",\n  \"max_tokens\": 1024,\n  \"messages\": [\n    {\n      \"content\": \"<string>\"\n    }\n  ],\n  \"system\": \"<string>\",\n  \"stream\": false,\n  \"tools\": [\n    {\n      \"name\": \"<string>\",\n      \"input_schema\": {},\n      \"description\": \"<string>\"\n    }\n  ],\n  \"tool_choice\": {\n    \"type\": \"auto\"\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://edgee.io/v1/messages")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"model\": \"claude-sonnet-4.5\",\n  \"max_tokens\": 1024,\n  \"messages\": [\n    {\n      \"content\": \"<string>\"\n    }\n  ],\n  \"system\": \"<string>\",\n  \"stream\": false,\n  \"tools\": [\n    {\n      \"name\": \"<string>\",\n      \"input_schema\": {},\n      \"description\": \"<string>\"\n    }\n  ],\n  \"tool_choice\": {\n    \"type\": \"auto\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://edgee.io/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\": \"claude-sonnet-4.5\",\n  \"max_tokens\": 1024,\n  \"messages\": [\n    {\n      \"content\": \"<string>\"\n    }\n  ],\n  \"system\": \"<string>\",\n  \"stream\": false,\n  \"tools\": [\n    {\n      \"name\": \"<string>\",\n      \"input_schema\": {},\n      \"description\": \"<string>\"\n    }\n  ],\n  \"tool_choice\": {\n    \"type\": \"auto\"\n  }\n}"

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

{
  "id": "<string>",
  "model": "<string>",
  "content": [
    {
      "type": "text",
      "text": "<string>"
    }
  ],
  "usage": {
    "input_tokens": 1,
    "output_tokens": 1,
    "cache_read_input_tokens": 1,
    "cache_creation_input_tokens": 1
  },
  "stop_reason": "end_turn"
}

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

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

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

POST

messages

Create message (Anthropic format)

curl --request POST \
  --url https://edgee.io/v1/messages \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "claude-sonnet-4.5",
  "max_tokens": 1024,
  "messages": [
    {
      "content": "<string>"
    }
  ],
  "system": "<string>",
  "stream": false,
  "tools": [
    {
      "name": "<string>",
      "input_schema": {},
      "description": "<string>"
    }
  ],
  "tool_choice": {
    "type": "auto"
  }
}
'

import requests

url = "https://edgee.io/v1/messages"

payload = {
    "model": "claude-sonnet-4.5",
    "max_tokens": 1024,
    "messages": [{ "content": "<string>" }],
    "system": "<string>",
    "stream": False,
    "tools": [
        {
            "name": "<string>",
            "input_schema": {},
            "description": "<string>"
        }
    ],
    "tool_choice": { "type": "auto" }
}
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: 'claude-sonnet-4.5',
    max_tokens: 1024,
    messages: [{content: '<string>'}],
    system: '<string>',
    stream: false,
    tools: [{name: '<string>', input_schema: {}, description: '<string>'}],
    tool_choice: {type: 'auto'}
  })
};

fetch('https://edgee.io/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://edgee.io/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' => 'claude-sonnet-4.5',
    'max_tokens' => 1024,
    'messages' => [
        [
                'content' => '<string>'
        ]
    ],
    'system' => '<string>',
    'stream' => false,
    'tools' => [
        [
                'name' => '<string>',
                'input_schema' => [
                                
                ],
                'description' => '<string>'
        ]
    ],
    'tool_choice' => [
        'type' => 'auto'
    ]
  ]),
  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://edgee.io/v1/messages"

	payload := strings.NewReader("{\n  \"model\": \"claude-sonnet-4.5\",\n  \"max_tokens\": 1024,\n  \"messages\": [\n    {\n      \"content\": \"<string>\"\n    }\n  ],\n  \"system\": \"<string>\",\n  \"stream\": false,\n  \"tools\": [\n    {\n      \"name\": \"<string>\",\n      \"input_schema\": {},\n      \"description\": \"<string>\"\n    }\n  ],\n  \"tool_choice\": {\n    \"type\": \"auto\"\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://edgee.io/v1/messages")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"model\": \"claude-sonnet-4.5\",\n  \"max_tokens\": 1024,\n  \"messages\": [\n    {\n      \"content\": \"<string>\"\n    }\n  ],\n  \"system\": \"<string>\",\n  \"stream\": false,\n  \"tools\": [\n    {\n      \"name\": \"<string>\",\n      \"input_schema\": {},\n      \"description\": \"<string>\"\n    }\n  ],\n  \"tool_choice\": {\n    \"type\": \"auto\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://edgee.io/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\": \"claude-sonnet-4.5\",\n  \"max_tokens\": 1024,\n  \"messages\": [\n    {\n      \"content\": \"<string>\"\n    }\n  ],\n  \"system\": \"<string>\",\n  \"stream\": false,\n  \"tools\": [\n    {\n      \"name\": \"<string>\",\n      \"input_schema\": {},\n      \"description\": \"<string>\"\n    }\n  ],\n  \"tool_choice\": {\n    \"type\": \"auto\"\n  }\n}"

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

{
  "id": "<string>",
  "model": "<string>",
  "content": [
    {
      "type": "text",
      "text": "<string>"
    }
  ],
  "usage": {
    "input_tokens": 1,
    "output_tokens": 1,
    "cache_read_input_tokens": 1,
    "cache_creation_input_tokens": 1
  },
  "stop_reason": "end_turn"
}

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

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

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

Creates a message using Anthropic’s native Messages API format. This endpoint provides the same API format as Anthropic’s official API, making it easy to migrate existing integrations or use Anthropic-specific features.

Authorizations

Authorization

string

header

required

Bearer authentication header of the form Bearer <token>, where <token> is your API key. More info here

Headers

X-Edgee-Tags

string

Comma-separated list of tags for categorizing and filtering requests in analytics and logs. Example: production,agent,codex

X-Edgee-Debug

boolean

Enable debug mode to include additional debugging information in the response.

X-Edgee-Compression-Model

enum<string>

Compression bundle to apply.

Available options:

claude,

opencode,

cursor,

codex

x-edgee-api-key

string

Claude CLI passthrough authentication. When set, the gateway uses this key instead of x-api-key / Authorization to authenticate the request. Used by the Claude Code CLI when proxying requests through Edgee.

x-edgee-session-id

string

Claude CLI session identifier. Used to group all messages from a single CLI session in analytics.

Body

application/json

model

string

required

The model ID to use (Anthropic format, without provider prefix)

Example:

"claude-sonnet-4.5"

max_tokens

integer

required

Maximum number of tokens to generate

Required range: x >= 1

Example:

1024

messages

object[]

required

Array of message objects

Minimum array length: 1

Show child attributes

system

System prompt as a string

stream

boolean

default:false

Enable streaming responses

tools

object[]

Tool definitions

Show child attributes

tool_choice

object

Option 1
Option 2
Option 3

Show child attributes

Response

Message created successfully

string

required

Unique identifier for this message

model

string

required

The model that generated the response

content

object[]

required

Array of content blocks

Option 1
Option 2
Option 3

Show child attributes

usage

object

required

Show child attributes

stop_reason

enum<string>

Why the model stopped generating

Available options:

end_turn,

max_tokens,

tool_use

⌘I

Gateway API

Console API

Authorizations

Headers

Body

Response