curl --request POST \
  --url https://api.fincept.in/quantlib/ml/credit/migration \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "transitions": [
    [
      850,
      100,
      30,
      15,
      5
    ],
    [
      50,
      800,
      120,
      25,
      5
    ],
    [
      10,
      80,
      850,
      50,
      10
    ],
    [
      5,
      20,
      100,
      820,
      55
    ],
    [
      0,
      5,
      20,
      75,
      900
    ]
  ],
  "periods": 3
}
'

import requests

url = "https://api.fincept.in/quantlib/ml/credit/migration"

payload = {
    "transitions": [[850, 100, 30, 15, 5], [50, 800, 120, 25, 5], [10, 80, 850, 50, 10], [5, 20, 100, 820, 55], [0, 5, 20, 75, 900]],
    "periods": 3
}
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    transitions: [
      [850, 100, 30, 15, 5],
      [50, 800, 120, 25, 5],
      [10, 80, 850, 50, 10],
      [5, 20, 100, 820, 55],
      [0, 5, 20, 75, 900]
    ],
    periods: 3
  })
};

fetch('https://api.fincept.in/quantlib/ml/credit/migration', 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.fincept.in/quantlib/ml/credit/migration",
  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([
    'transitions' => [
        [
                850,
                100,
                30,
                15,
                5
        ],
        [
                50,
                800,
                120,
                25,
                5
        ],
        [
                10,
                80,
                850,
                50,
                10
        ],
        [
                5,
                20,
                100,
                820,
                55
        ],
        [
                0,
                5,
                20,
                75,
                900
        ]
    ],
    'periods' => 3
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-Key: <api-key>"
  ],
]);

$response = curl_exec($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.fincept.in/quantlib/ml/credit/migration"

	payload := strings.NewReader("{\n  \"transitions\": [\n    [\n      850,\n      100,\n      30,\n      15,\n      5\n    ],\n    [\n      50,\n      800,\n      120,\n      25,\n      5\n    ],\n    [\n      10,\n      80,\n      850,\n      50,\n      10\n    ],\n    [\n      5,\n      20,\n      100,\n      820,\n      55\n    ],\n    [\n      0,\n      5,\n      20,\n      75,\n      900\n    ]\n  ],\n  \"periods\": 3\n}")

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

	req.Header.Add("X-API-Key", "<api-key>")
	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.fincept.in/quantlib/ml/credit/migration")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"transitions\": [\n    [\n      850,\n      100,\n      30,\n      15,\n      5\n    ],\n    [\n      50,\n      800,\n      120,\n      25,\n      5\n    ],\n    [\n      10,\n      80,\n      850,\n      50,\n      10\n    ],\n    [\n      5,\n      20,\n      100,\n      820,\n      55\n    ],\n    [\n      0,\n      5,\n      20,\n      75,\n      900\n    ]\n  ],\n  \"periods\": 3\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.fincept.in/quantlib/ml/credit/migration")

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

request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"transitions\": [\n    [\n      850,\n      100,\n      30,\n      15,\n      5\n    ],\n    [\n      50,\n      800,\n      120,\n      25,\n      5\n    ],\n    [\n      10,\n      80,\n      850,\n      50,\n      10\n    ],\n    [\n      5,\n      20,\n      100,\n      820,\n      55\n    ],\n    [\n      0,\n      5,\n      20,\n      75,\n      900\n    ]\n  ],\n  \"periods\": 3\n}"

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

{
  "success": true,
  "data": {
    "transition_matrix": [
      [
        0.85,
        0.1,
        0.03,
        0.015,
        0.005
      ],
      [
        0.05,
        0.8,
        0.12,
        0.025,
        0.005
      ]
    ],
    "multi_period_matrix": [
      [
        0.614,
        0.244,
        0.099,
        0.034,
        0.009
      ],
      [
        0.153,
        0.512,
        0.244,
        0.071,
        0.02
      ]
    ]
  }
}

{
  "detail": "Invalid API key"
}

{
  "detail": "Insufficient credits. This endpoint requires 5 credits."
}

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>"
    }
  ]
}