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POST
/
v1
/
custom_functions
/
generate
Generate Custom Function
curl --request POST \
  --url https://api.xpander.ai/v1/custom_functions/generate \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "query": "",
  "user_function": "",
  "import_curl": ""
}
'
import requests

url = "https://api.xpander.ai/v1/custom_functions/generate"

payload = {
    "query": "",
    "user_function": "",
    "import_curl": ""
}
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({query: '', user_function: '', import_curl: ''})
};

fetch('https://api.xpander.ai/v1/custom_functions/generate', 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.xpander.ai/v1/custom_functions/generate",
  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([
    'query' => '',
    'user_function' => '',
    'import_curl' => ''
  ]),
  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.xpander.ai/v1/custom_functions/generate"

	payload := strings.NewReader("{\n  \"query\": \"\",\n  \"user_function\": \"\",\n  \"import_curl\": \"\"\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.xpander.ai/v1/custom_functions/generate")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"query\": \"\",\n  \"user_function\": \"\",\n  \"import_curl\": \"\"\n}")
  .asString();
require 'uri'
require 'net/http'

url = URI("https://api.xpander.ai/v1/custom_functions/generate")

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  \"query\": \"\",\n  \"user_function\": \"\",\n  \"import_curl\": \"\"\n}"

response = http.request(request)
puts response.read_body
{
  "custom_function": "<string>"
}
{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>"
    }
  ]
}
AI-generate a custom function from a natural language description. Provide a description of what the function should do, and optionally provide existing code to improve or a cURL command to convert into a function.

​
Request Body

​
query
string
Natural language description of what the function should do (e.g., “fetch stock prices from Yahoo Finance”)
​
user_function
string
Existing Python code to improve or refactor
​
import_curl
string
A cURL command to convert into a custom function

​
Response

​
custom_function
string
The generated Python source code ready to use with Create Custom Function

​
Example Request

curl -X POST "https://api.xpander.ai/v1/custom_functions/generate" \
  -H "Content-Type: application/json" \
  -H "x-api-key: <your-api-key>" \
  -d '{"query": "Create a function that fetches the current Bitcoin price from CoinGecko API"}'

​
Notes

  • The generated code includes a xpander_run_action(...) entry point
  • Review the generated code before creating the function
  • You can provide user_function to improve existing code, or import_curl to convert a cURL command

Authorizations

​
x-api-key
string
header
required

API Key for authentication

Body

application/json

Request model for AI-generating a custom function from a description.

Provide a natural language description of what you need, and the AI will generate the Python source code with proper xpander_run_action signature.

​
query
string | null
default:""

Natural language description of what the function should do. Examples: 'Calculate compound interest given principal, rate, and years', 'Parse a CSV string and return the headers and first 5 rows'.

​
user_function
string | null
default:""

Optional existing source code to improve or modify. The AI will use this as a starting point.

​
import_curl
string | null
default:""

Optional cURL command to convert into a custom function. The AI will parse the cURL and generate a function that makes the equivalent HTTP request.

Response

Successful Response

Response from the AI custom function generator.

​
custom_function
string
required

Generated Python source code defining xpander_run_action(...).