curl --request GET \
  --url https://www.trysignalbase.com/api/v2/signals/custom/definitions/{slug} \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://www.trysignalbase.com/api/v2/signals/custom/definitions/{slug}"

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

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

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://www.trysignalbase.com/api/v2/signals/custom/definitions/{slug}', 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://www.trysignalbase.com/api/v2/signals/custom/definitions/{slug}",
  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://www.trysignalbase.com/api/v2/signals/custom/definitions/{slug}"

	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://www.trysignalbase.com/api/v2/signals/custom/definitions/{slug}")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://www.trysignalbase.com/api/v2/signals/custom/definitions/{slug}")

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

{
  "success": true,
  "data": {
    "slug": "first_sales_leader_x7k2",
    "name": "First sales leader",
    "description": "The author's own company announces its first sales leader (VP Sales, Head of Sales, CRO) or founding sales hire. Not: a sales hire at a company with an existing sales team; a recruiter post about another company.",
    "sourceDescription": "The author's own company announces hiring its first sales leader or is building its first sales team: a first VP Sales, Head of Sales, CRO or founding account executive. Exclude ordinary sales hires at companies that already have a sales team, and recruiter posts about other companies.",
    "status": "ready",
    "scope": "team",
    "attributes": [
      "role",
      "seniority"
    ],
    "keywordCount": 7,
    "restricted": false,
    "monitorId": null,
    "compileError": null,
    "test": {
      "ranAt": "2026-11-10T09:16:40.000Z",
      "mode": "global",
      "fetched": 140,
      "classified": 140,
      "matched": 4,
      "companiesChecked": 0,
      "leads": [
        {
          "companyName": "Acme",
          "companyLinkedinUrl": "https://www.linkedin.com/company/acme",
          "headline": "Acme hires its first VP Sales",
          "confidence": 0.91,
          "sourceUrl": "https://www.linkedin.com/feed/update/urn:li:activity:7515785729281671168",
          "author": "Jane Doe",
          "evidenceQuotes": [
            "Thrilled to welcome our first ever VP of Sales as we build out the go-to-market team."
          ],
          "attributes": {
            "role": "VP Sales",
            "seniority": "vp"
          },
          "postedAt": "2026-11-08T14:02:00.000Z"
        }
      ]
    },
    "lastRunAt": null,
    "lastRunStats": null,
    "activatedAt": null,
    "createdAt": "2026-11-10T09:12:04.000Z",
    "signals30d": 0,
    "signalsTotal": 0,
    "lastSignalAt": null,
    "nextStep": "Compiled and tested. Review test.leads: if they are the kind of post you want, start the definition (active: true). The leads become its first signals."
  },
  "meta": {
    "endpoint": "customSignals.get",
    "creditsUsed": 0
  }
}

{
  "success": false,
  "error": "description must be 20 to 1500 characters"
}

{
  "success": false,
  "error": "Invalid API key"
}

{
  "success": false,
  "error": "Custom signals are part of the Pro plan."
}

{
  "success": false,
  "error": "Custom signal not found"
}

{
  "success": false,
  "error": "Rate limit exceeded"
}

{
  "success": false,
  "error": "Internal server error"
}