curl --request POST \
  --url https://brew.new/api/v1/payload-contracts/infer \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "example": {
    "email": "jane@example.com",
    "order": {
      "total": 9.5,
      "placedAt": "2026-04-08T12:00:00.000Z"
    }
  }
}
'

import requests

url = "https://brew.new/api/v1/payload-contracts/infer"

payload = { "example": {
        "email": "jane@example.com",
        "order": {
            "total": 9.5,
            "placedAt": "2026-04-08T12:00:00.000Z"
        }
    } }
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({
    example: {
      email: 'jane@example.com',
      order: {total: 9.5, placedAt: '2026-04-08T12:00:00.000Z'}
    }
  })
};

fetch('https://brew.new/api/v1/payload-contracts/infer', 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://brew.new/api/v1/payload-contracts/infer",
  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([
    'example' => [
        'email' => 'jane@example.com',
        'order' => [
                'total' => 9.5,
                'placedAt' => '2026-04-08T12:00:00.000Z'
        ]
    ]
  ]),
  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://brew.new/api/v1/payload-contracts/infer"

	payload := strings.NewReader("{\n  \"example\": {\n    \"email\": \"jane@example.com\",\n    \"order\": {\n      \"total\": 9.5,\n      \"placedAt\": \"2026-04-08T12:00:00.000Z\"\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://brew.new/api/v1/payload-contracts/infer")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"example\": {\n    \"email\": \"jane@example.com\",\n    \"order\": {\n      \"total\": 9.5,\n      \"placedAt\": \"2026-04-08T12:00:00.000Z\"\n    }\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://brew.new/api/v1/payload-contracts/infer")

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  \"example\": {\n    \"email\": \"jane@example.com\",\n    \"order\": {\n      \"total\": 9.5,\n      \"placedAt\": \"2026-04-08T12:00:00.000Z\"\n    }\n  }\n}"

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

{
  "fields": [
    {
      "key": "email",
      "type": "string",
      "required": true
    },
    {
      "key": "order",
      "type": "object",
      "required": true,
      "children": [
        {
          "key": "total",
          "type": "float",
          "required": true
        },
        {
          "key": "placedAt",
          "type": "date",
          "required": true
        }
      ]
    }
  ],
  "issues": []
}

{
  "error": {
    "code": "INVALID_REQUEST",
    "type": "invalid_request",
    "message": "Request validation failed.",
    "suggestion": "Fix the field reported in `param` and retry.",
    "docs": "https://docs.brew.new/api-reference/api/errors",
    "param": "example"
  }
}

{
  "error": {
    "code": "INVALID_API_KEY",
    "type": "authentication_error",
    "message": "The provided API key is invalid.",
    "suggestion": "Check the API key format and retry with a valid active key.",
    "docs": "https://docs.brew.new/api-reference/api/authentication"
  }
}

{
  "error": {
    "code": "INSUFFICIENT_PERMISSIONS",
    "type": "authorization_error",
    "message": "The caller does not have the required permission.",
    "suggestion": "Use an API key or session with the required permission.",
    "docs": "https://docs.brew.new/api-reference/api/authentication",
    "param": "automations"
  }
}

{
  "error": {
    "code": "RATE_LIMITED",
    "type": "rate_limit",
    "message": "Too many requests.",
    "suggestion": "Wait for the retry window before sending another request.",
    "docs": "https://docs.brew.new/api-reference/api/rate-limits",
    "retryAfter": 42
  }
}

{
  "error": {
    "code": "INTERNAL_ERROR",
    "type": "internal_error",
    "message": "An unexpected error occurred.",
    "suggestion": "Retry the request. If it keeps failing, contact support.",
    "docs": "https://docs.brew.new/api-reference/api/errors"
  }
}