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GET
/
v1
/
custom-tools
/
runtimes
List custom tool runtimes
curl --request GET \
  --url https://api.conduit.ai/v1/custom-tools/runtimes \
  --header 'Authorization: Bearer <token>'
import requests

url = "https://api.conduit.ai/v1/custom-tools/runtimes"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)
const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.conduit.ai/v1/custom-tools/runtimes', 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.conduit.ai/v1/custom-tools/runtimes",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>"
],
]);

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

curl_close($curl);

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

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

func main() {

url := "https://api.conduit.ai/v1/custom-tools/runtimes"

req, _ := http.NewRequest("GET", url, nil)

req.Header.Add("Authorization", "Bearer <token>")

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

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

fmt.Println(string(body))

}
HttpResponse<String> response = Unirest.get("https://api.conduit.ai/v1/custom-tools/runtimes")
.header("Authorization", "Bearer <token>")
.asString();
require 'uri'
require 'net/http'

url = URI("https://api.conduit.ai/v1/custom-tools/runtimes")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body
{
  "data": [
    {
      "language": "python",
      "display_name": "Python",
      "file_extension": "py",
      "package_manager": "pip",
      "entrypoint_signature": "def main(**params) -> dict",
      "return_contract": "Return a dict containing a string `message` key. Optionally include `rawData` for structured data the agent can read. Example: `return {\"message\": \"Found 3 results\", \"rawData\": {...}}`.",
      "starter_template": "def main(**params):\n    result = \"Hello from custom tool!\"\n    return {\"message\": result, \"rawData\": {\"any\": \"additional data\"}}",
      "builtin_modules": [
        "json",
        "math",
        "datetime",
        "re",
        "urllib"
      ],
      "available_packages": [
        "httpx",
        "numpy",
        "pandas",
        "requests"
      ]
    },
    {
      "language": "javascript",
      "display_name": "JavaScript",
      "file_extension": "js",
      "package_manager": "bun",
      "entrypoint_signature": "async function main(params) -> object",
      "return_contract": "Return an object containing a string `message` key. Optionally include `rawData` for structured data the agent can read. Example: `return { message: 'Found 3 results', rawData: {...} }`.",
      "starter_template": "async function main(params) {\n    const result = \"Hello from custom tool!\";\n    return { message: result, rawData: { any: \"additional data\" } };\n}",
      "builtin_modules": [
        "fs",
        "path",
        "crypto",
        "https"
      ],
      "available_packages": []
    }
  ]
}
{
"error": "Invalid workspace id"
}
{
"error": "Invalid workspace id"
}

Authorizations

Authorization
string
header
required

Conduit API token. Use Authorization: Bearer <token>. Read/write endpoints require a token with write access.

Response

Supported custom tool runtimes

Supported custom tool runtimes, with the entrypoint signature, return contract, and available dependencies per language.

data
object[]
required