Subscriptions

Base URL https://api.leadx.in/api/key/protected. Every request needs an apikey header — see Authentication.

12 endpoints.

`POST /subscription`

Create subscription.

Auth apikey

cURL
curl -X POST 'https://api.leadx.in/api/key/protected/subscription' \
  -H 'apikey: $LEADX_API_KEY'

fetch
// Node 18+ and every modern browser ship fetch.
const res = await fetch('https://api.leadx.in/api/key/protected/subscription', {
  method: 'POST',
  headers: {
    apikey: process.env.LEADX_API_KEY,
  },
});

const payload = await res.json();
if (!res.ok) {
  // Errors carry { status, success, message } — not the success envelope.
  throw new Error(`${res.status} ${payload.message}`);
}

console.log(payload.data);

axios
import axios from 'axios';

const leadx = axios.create({
  baseURL: 'https://api.leadx.in/api/key/protected',
  headers: { apikey: process.env.LEADX_API_KEY },
});

try {
  const { data } = await leadx.post(
    '/subscription'
  );
  console.log(data.data);
} catch (err) {
  // axios throws on 4xx/5xx; the envelope is on err.response.data.
  throw new Error(`${err.response?.status} ${err.response?.data?.message ?? err.message}`);
}

Node (no deps)
import { request } from 'node:https';

// The dependency-free version, for somewhere fetch is not available.
const send = (payload) =>
  new Promise((resolve, reject) => {
    const req = request(
      'https://api.leadx.in/api/key/protected/subscription',
      {
        method: 'POST',
        headers: {
          apikey: process.env.LEADX_API_KEY,
        },
      },
      (res) => {
        let raw = '';
        res.on('data', (chunk) => { raw += chunk; });
        res.on('end', () => {
          const body = JSON.parse(raw);
          if (res.statusCode >= 400) reject(new Error(`${res.statusCode} ${body.message}`));
          else resolve(body);
        });
      },
    );
    req.on('error', reject);
    
    req.end();
  });

const { data } = await send(null);
console.log(data);

Python
import os
import requests

res = requests.post(
    "https://api.leadx.in/api/key/protected/subscription",
    headers={"apikey": os.environ["LEADX_API_KEY"]},
    timeout=30,
)

payload = res.json()
res.raise_for_status()
print(payload["data"])

PHP
<?php
$ch = curl_init('https://api.leadx.in/api/key/protected/subscription');
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST  => 'POST',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER     => [
        'apikey: ' . getenv('LEADX_API_KEY'),
    ],
]);

$response = curl_exec($ch);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

$payload = json_decode($response, true);
if ($status >= 400) {
    throw new RuntimeException("$status {$payload['message']}");
}

print_r($payload['data']);

`DELETE /subscription/:subscriptionId`

Remove specific subscription.

Auth apikey · Success 200

:::note Used by the web app pages/Billing.jsx, pages/BillingHistory.jsx, pages/MyPlanDetails.jsx and 1 more :::

Path parameters

Name
`subscriptionId`	Required

Response — data is one Subscription object. planDetails.features.feature changeRequest is populated, so it arrives as nested objects rather than ids.

cURL
curl -X DELETE 'https://api.leadx.in/api/key/protected/subscription/SUBSCRIPTIONID' \
  -H 'apikey: $LEADX_API_KEY'

fetch
// Node 18+ and every modern browser ship fetch.
const res = await fetch('https://api.leadx.in/api/key/protected/subscription/SUBSCRIPTIONID', {
  method: 'DELETE',
  headers: {
    apikey: process.env.LEADX_API_KEY,
  },
});

const payload = await res.json();
if (!res.ok) {
  // Errors carry { status, success, message } — not the success envelope.
  throw new Error(`${res.status} ${payload.message}`);
}

console.log(payload.data);

axios
import axios from 'axios';

const leadx = axios.create({
  baseURL: 'https://api.leadx.in/api/key/protected',
  headers: { apikey: process.env.LEADX_API_KEY },
});

try {
  const { data } = await leadx.delete(
    '/subscription/SUBSCRIPTIONID'
  );
  console.log(data.data);
} catch (err) {
  // axios throws on 4xx/5xx; the envelope is on err.response.data.
  throw new Error(`${err.response?.status} ${err.response?.data?.message ?? err.message}`);
}

Node (no deps)
import { request } from 'node:https';

// The dependency-free version, for somewhere fetch is not available.
const send = (payload) =>
  new Promise((resolve, reject) => {
    const req = request(
      'https://api.leadx.in/api/key/protected/subscription/SUBSCRIPTIONID',
      {
        method: 'DELETE',
        headers: {
          apikey: process.env.LEADX_API_KEY,
        },
      },
      (res) => {
        let raw = '';
        res.on('data', (chunk) => { raw += chunk; });
        res.on('end', () => {
          const body = JSON.parse(raw);
          if (res.statusCode >= 400) reject(new Error(`${res.statusCode} ${body.message}`));
          else resolve(body);
        });
      },
    );
    req.on('error', reject);
    
    req.end();
  });

const { data } = await send(null);
console.log(data);

Python
import os
import requests

res = requests.delete(
    "https://api.leadx.in/api/key/protected/subscription/SUBSCRIPTIONID",
    headers={"apikey": os.environ["LEADX_API_KEY"]},
    timeout=30,
)

payload = res.json()
res.raise_for_status()
print(payload["data"])

PHP
<?php
$ch = curl_init('https://api.leadx.in/api/key/protected/subscription/SUBSCRIPTIONID');
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST  => 'DELETE',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER     => [
        'apikey: ' . getenv('LEADX_API_KEY'),
    ],
]);

$response = curl_exec($ch);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

$payload = json_decode($response, true);
if ($status >= 400) {
    throw new RuntimeException("$status {$payload['message']}");
}

print_r($payload['data']);

Errors SubscriptionNotFound_400

`POST /subscription/change`

Change subscription.

Auth apikey · Success 200

cURL
curl -X POST 'https://api.leadx.in/api/key/protected/subscription/change' \
  -H 'apikey: $LEADX_API_KEY'

fetch
// Node 18+ and every modern browser ship fetch.
const res = await fetch('https://api.leadx.in/api/key/protected/subscription/change', {
  method: 'POST',
  headers: {
    apikey: process.env.LEADX_API_KEY,
  },
});

const payload = await res.json();
if (!res.ok) {
  // Errors carry { status, success, message } — not the success envelope.
  throw new Error(`${res.status} ${payload.message}`);
}

console.log(payload.data);

axios
import axios from 'axios';

const leadx = axios.create({
  baseURL: 'https://api.leadx.in/api/key/protected',
  headers: { apikey: process.env.LEADX_API_KEY },
});

try {
  const { data } = await leadx.post(
    '/subscription/change'
  );
  console.log(data.data);
} catch (err) {
  // axios throws on 4xx/5xx; the envelope is on err.response.data.
  throw new Error(`${err.response?.status} ${err.response?.data?.message ?? err.message}`);
}

Node (no deps)
import { request } from 'node:https';

// The dependency-free version, for somewhere fetch is not available.
const send = (payload) =>
  new Promise((resolve, reject) => {
    const req = request(
      'https://api.leadx.in/api/key/protected/subscription/change',
      {
        method: 'POST',
        headers: {
          apikey: process.env.LEADX_API_KEY,
        },
      },
      (res) => {
        let raw = '';
        res.on('data', (chunk) => { raw += chunk; });
        res.on('end', () => {
          const body = JSON.parse(raw);
          if (res.statusCode >= 400) reject(new Error(`${res.statusCode} ${body.message}`));
          else resolve(body);
        });
      },
    );
    req.on('error', reject);
    
    req.end();
  });

const { data } = await send(null);
console.log(data);

Python
import os
import requests

res = requests.post(
    "https://api.leadx.in/api/key/protected/subscription/change",
    headers={"apikey": os.environ["LEADX_API_KEY"]},
    timeout=30,
)

payload = res.json()
res.raise_for_status()
print(payload["data"])

PHP
<?php
$ch = curl_init('https://api.leadx.in/api/key/protected/subscription/change');
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST  => 'POST',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER     => [
        'apikey: ' . getenv('LEADX_API_KEY'),
    ],
]);

$response = curl_exec($ch);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

$payload = json_decode($response, true);
if ($status >= 400) {
    throw new RuntimeException("$status {$payload['message']}");
}

print_r($payload['data']);

Errors PlanMaxUsers_400 · PlanMinUsers_400

`DELETE /subscription/current`

Remove current subscription.

Auth apikey · Success 200

Response — data is one Subscription object. planDetails.features.feature changeRequest is populated, so it arrives as nested objects rather than ids.

cURL
curl -X DELETE 'https://api.leadx.in/api/key/protected/subscription/current' \
  -H 'apikey: $LEADX_API_KEY'

fetch
// Node 18+ and every modern browser ship fetch.
const res = await fetch('https://api.leadx.in/api/key/protected/subscription/current', {
  method: 'DELETE',
  headers: {
    apikey: process.env.LEADX_API_KEY,
  },
});

const payload = await res.json();
if (!res.ok) {
  // Errors carry { status, success, message } — not the success envelope.
  throw new Error(`${res.status} ${payload.message}`);
}

console.log(payload.data);

axios
import axios from 'axios';

const leadx = axios.create({
  baseURL: 'https://api.leadx.in/api/key/protected',
  headers: { apikey: process.env.LEADX_API_KEY },
});

try {
  const { data } = await leadx.delete(
    '/subscription/current'
  );
  console.log(data.data);
} catch (err) {
  // axios throws on 4xx/5xx; the envelope is on err.response.data.
  throw new Error(`${err.response?.status} ${err.response?.data?.message ?? err.message}`);
}

Node (no deps)
import { request } from 'node:https';

// The dependency-free version, for somewhere fetch is not available.
const send = (payload) =>
  new Promise((resolve, reject) => {
    const req = request(
      'https://api.leadx.in/api/key/protected/subscription/current',
      {
        method: 'DELETE',
        headers: {
          apikey: process.env.LEADX_API_KEY,
        },
      },
      (res) => {
        let raw = '';
        res.on('data', (chunk) => { raw += chunk; });
        res.on('end', () => {
          const body = JSON.parse(raw);
          if (res.statusCode >= 400) reject(new Error(`${res.statusCode} ${body.message}`));
          else resolve(body);
        });
      },
    );
    req.on('error', reject);
    
    req.end();
  });

const { data } = await send(null);
console.log(data);

Python
import os
import requests

res = requests.delete(
    "https://api.leadx.in/api/key/protected/subscription/current",
    headers={"apikey": os.environ["LEADX_API_KEY"]},
    timeout=30,
)

payload = res.json()
res.raise_for_status()
print(payload["data"])

PHP
<?php
$ch = curl_init('https://api.leadx.in/api/key/protected/subscription/current');
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST  => 'DELETE',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER     => [
        'apikey: ' . getenv('LEADX_API_KEY'),
    ],
]);

$response = curl_exec($ch);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

$payload = json_decode($response, true);
if ($status >= 400) {
    throw new RuntimeException("$status {$payload['message']}");
}

print_r($payload['data']);

Errors SubscriptionNotFound_400

`GET /subscription/history`

Get subscription history.

Auth apikey

cURL
curl -X GET 'https://api.leadx.in/api/key/protected/subscription/history' \
  -H 'apikey: $LEADX_API_KEY'

fetch
// Node 18+ and every modern browser ship fetch.
const res = await fetch('https://api.leadx.in/api/key/protected/subscription/history', {
  method: 'GET',
  headers: {
    apikey: process.env.LEADX_API_KEY,
  },
});

const payload = await res.json();
if (!res.ok) {
  // Errors carry { status, success, message } — not the success envelope.
  throw new Error(`${res.status} ${payload.message}`);
}

console.log(payload.data);

axios
import axios from 'axios';

const leadx = axios.create({
  baseURL: 'https://api.leadx.in/api/key/protected',
  headers: { apikey: process.env.LEADX_API_KEY },
});

try {
  const { data } = await leadx.get(
    '/subscription/history'
  );
  console.log(data.data);
} catch (err) {
  // axios throws on 4xx/5xx; the envelope is on err.response.data.
  throw new Error(`${err.response?.status} ${err.response?.data?.message ?? err.message}`);
}

Node (no deps)
import { request } from 'node:https';

// The dependency-free version, for somewhere fetch is not available.
const send = (payload) =>
  new Promise((resolve, reject) => {
    const req = request(
      'https://api.leadx.in/api/key/protected/subscription/history',
      {
        method: 'GET',
        headers: {
          apikey: process.env.LEADX_API_KEY,
        },
      },
      (res) => {
        let raw = '';
        res.on('data', (chunk) => { raw += chunk; });
        res.on('end', () => {
          const body = JSON.parse(raw);
          if (res.statusCode >= 400) reject(new Error(`${res.statusCode} ${body.message}`));
          else resolve(body);
        });
      },
    );
    req.on('error', reject);
    
    req.end();
  });

const { data } = await send(null);
console.log(data);

Python
import os
import requests

res = requests.get(
    "https://api.leadx.in/api/key/protected/subscription/history",
    headers={"apikey": os.environ["LEADX_API_KEY"]},
    timeout=30,
)

payload = res.json()
res.raise_for_status()
print(payload["data"])

PHP
<?php
$ch = curl_init('https://api.leadx.in/api/key/protected/subscription/history');
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST  => 'GET',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER     => [
        'apikey: ' . getenv('LEADX_API_KEY'),
    ],
]);

$response = curl_exec($ch);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

$payload = json_decode($response, true);
if ($status >= 400) {
    throw new RuntimeException("$status {$payload['message']}");
}

print_r($payload['data']);

`GET /subscription/list`

Get all subscriptions.

Auth apikey

Query parameters — the standard list contract: p, n, sortBy, sortOrder, searchBy, searchValue, filters, advancedFilters, ids, nids. See Pagination and Filtering.

cURL
curl -X GET 'https://api.leadx.in/api/key/protected/subscription/list?p=1&n=25' \
  -H 'apikey: $LEADX_API_KEY'

fetch
// Node 18+ and every modern browser ship fetch.
const res = await fetch('https://api.leadx.in/api/key/protected/subscription/list?p=1&n=25', {
  method: 'GET',
  headers: {
    apikey: process.env.LEADX_API_KEY,
  },
});

const payload = await res.json();
if (!res.ok) {
  // Errors carry { status, success, message } — not the success envelope.
  throw new Error(`${res.status} ${payload.message}`);
}

console.log(payload.data);

axios
import axios from 'axios';

const leadx = axios.create({
  baseURL: 'https://api.leadx.in/api/key/protected',
  headers: { apikey: process.env.LEADX_API_KEY },
});

try {
  const { data } = await leadx.get(
    '/subscription/list?p=1&n=25'
  );
  console.log(data.data);
} catch (err) {
  // axios throws on 4xx/5xx; the envelope is on err.response.data.
  throw new Error(`${err.response?.status} ${err.response?.data?.message ?? err.message}`);
}

Node (no deps)
import { request } from 'node:https';

// The dependency-free version, for somewhere fetch is not available.
const send = (payload) =>
  new Promise((resolve, reject) => {
    const req = request(
      'https://api.leadx.in/api/key/protected/subscription/list?p=1&n=25',
      {
        method: 'GET',
        headers: {
          apikey: process.env.LEADX_API_KEY,
        },
      },
      (res) => {
        let raw = '';
        res.on('data', (chunk) => { raw += chunk; });
        res.on('end', () => {
          const body = JSON.parse(raw);
          if (res.statusCode >= 400) reject(new Error(`${res.statusCode} ${body.message}`));
          else resolve(body);
        });
      },
    );
    req.on('error', reject);
    
    req.end();
  });

const { data } = await send(null);
console.log(data);

Python
import os
import requests

res = requests.get(
    "https://api.leadx.in/api/key/protected/subscription/list?p=1&n=25",
    headers={"apikey": os.environ["LEADX_API_KEY"]},
    timeout=30,
)

payload = res.json()
res.raise_for_status()
print(payload["data"])

PHP
<?php
$ch = curl_init('https://api.leadx.in/api/key/protected/subscription/list?p=1&n=25');
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST  => 'GET',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER     => [
        'apikey: ' . getenv('LEADX_API_KEY'),
    ],
]);

$response = curl_exec($ch);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

$payload = json_decode($response, true);
if ($status >= 400) {
    throw new RuntimeException("$status {$payload['message']}");
}

print_r($payload['data']);

`POST /subscription/preview`

Price a plan change before committing to it.

Auth apikey

cURL
curl -X POST 'https://api.leadx.in/api/key/protected/subscription/preview' \
  -H 'apikey: $LEADX_API_KEY'

fetch
// Node 18+ and every modern browser ship fetch.
const res = await fetch('https://api.leadx.in/api/key/protected/subscription/preview', {
  method: 'POST',
  headers: {
    apikey: process.env.LEADX_API_KEY,
  },
});

const payload = await res.json();
if (!res.ok) {
  // Errors carry { status, success, message } — not the success envelope.
  throw new Error(`${res.status} ${payload.message}`);
}

console.log(payload.data);

axios
import axios from 'axios';

const leadx = axios.create({
  baseURL: 'https://api.leadx.in/api/key/protected',
  headers: { apikey: process.env.LEADX_API_KEY },
});

try {
  const { data } = await leadx.post(
    '/subscription/preview'
  );
  console.log(data.data);
} catch (err) {
  // axios throws on 4xx/5xx; the envelope is on err.response.data.
  throw new Error(`${err.response?.status} ${err.response?.data?.message ?? err.message}`);
}

Node (no deps)
import { request } from 'node:https';

// The dependency-free version, for somewhere fetch is not available.
const send = (payload) =>
  new Promise((resolve, reject) => {
    const req = request(
      'https://api.leadx.in/api/key/protected/subscription/preview',
      {
        method: 'POST',
        headers: {
          apikey: process.env.LEADX_API_KEY,
        },
      },
      (res) => {
        let raw = '';
        res.on('data', (chunk) => { raw += chunk; });
        res.on('end', () => {
          const body = JSON.parse(raw);
          if (res.statusCode >= 400) reject(new Error(`${res.statusCode} ${body.message}`));
          else resolve(body);
        });
      },
    );
    req.on('error', reject);
    
    req.end();
  });

const { data } = await send(null);
console.log(data);

Python
import os
import requests

res = requests.post(
    "https://api.leadx.in/api/key/protected/subscription/preview",
    headers={"apikey": os.environ["LEADX_API_KEY"]},
    timeout=30,
)

payload = res.json()
res.raise_for_status()
print(payload["data"])

PHP
<?php
$ch = curl_init('https://api.leadx.in/api/key/protected/subscription/preview');
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST  => 'POST',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER     => [
        'apikey: ' . getenv('LEADX_API_KEY'),
    ],
]);

$response = curl_exec($ch);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

$payload = json_decode($response, true);
if ($status >= 400) {
    throw new RuntimeException("$status {$payload['message']}");
}

print_r($payload['data']);

Errors PlanMaxUsers_400

`DELETE /subscription/queued`

Remove all queued subscriptions.

Auth apikey · Success 200

cURL
curl -X DELETE 'https://api.leadx.in/api/key/protected/subscription/queued' \
  -H 'apikey: $LEADX_API_KEY'

fetch
// Node 18+ and every modern browser ship fetch.
const res = await fetch('https://api.leadx.in/api/key/protected/subscription/queued', {
  method: 'DELETE',
  headers: {
    apikey: process.env.LEADX_API_KEY,
  },
});

const payload = await res.json();
if (!res.ok) {
  // Errors carry { status, success, message } — not the success envelope.
  throw new Error(`${res.status} ${payload.message}`);
}

console.log(payload.data);

axios
import axios from 'axios';

const leadx = axios.create({
  baseURL: 'https://api.leadx.in/api/key/protected',
  headers: { apikey: process.env.LEADX_API_KEY },
});

try {
  const { data } = await leadx.delete(
    '/subscription/queued'
  );
  console.log(data.data);
} catch (err) {
  // axios throws on 4xx/5xx; the envelope is on err.response.data.
  throw new Error(`${err.response?.status} ${err.response?.data?.message ?? err.message}`);
}

Node (no deps)
import { request } from 'node:https';

// The dependency-free version, for somewhere fetch is not available.
const send = (payload) =>
  new Promise((resolve, reject) => {
    const req = request(
      'https://api.leadx.in/api/key/protected/subscription/queued',
      {
        method: 'DELETE',
        headers: {
          apikey: process.env.LEADX_API_KEY,
        },
      },
      (res) => {
        let raw = '';
        res.on('data', (chunk) => { raw += chunk; });
        res.on('end', () => {
          const body = JSON.parse(raw);
          if (res.statusCode >= 400) reject(new Error(`${res.statusCode} ${body.message}`));
          else resolve(body);
        });
      },
    );
    req.on('error', reject);
    
    req.end();
  });

const { data } = await send(null);
console.log(data);

Python
import os
import requests

res = requests.delete(
    "https://api.leadx.in/api/key/protected/subscription/queued",
    headers={"apikey": os.environ["LEADX_API_KEY"]},
    timeout=30,
)

payload = res.json()
res.raise_for_status()
print(payload["data"])

PHP
<?php
$ch = curl_init('https://api.leadx.in/api/key/protected/subscription/queued');
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST  => 'DELETE',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER     => [
        'apikey: ' . getenv('LEADX_API_KEY'),
    ],
]);

$response = curl_exec($ch);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

$payload = json_decode($response, true);
if ($status >= 400) {
    throw new RuntimeException("$status {$payload['message']}");
}

print_r($payload['data']);

`DELETE /subscription/queued/:subscriptionId`

Remove queued subscription.

Auth apikey · Success 200

Path parameters

Name
`subscriptionId`	Required

cURL
curl -X DELETE 'https://api.leadx.in/api/key/protected/subscription/queued/SUBSCRIPTIONID' \
  -H 'apikey: $LEADX_API_KEY'

fetch
// Node 18+ and every modern browser ship fetch.
const res = await fetch('https://api.leadx.in/api/key/protected/subscription/queued/SUBSCRIPTIONID', {
  method: 'DELETE',
  headers: {
    apikey: process.env.LEADX_API_KEY,
  },
});

const payload = await res.json();
if (!res.ok) {
  // Errors carry { status, success, message } — not the success envelope.
  throw new Error(`${res.status} ${payload.message}`);
}

console.log(payload.data);

axios
import axios from 'axios';

const leadx = axios.create({
  baseURL: 'https://api.leadx.in/api/key/protected',
  headers: { apikey: process.env.LEADX_API_KEY },
});

try {
  const { data } = await leadx.delete(
    '/subscription/queued/SUBSCRIPTIONID'
  );
  console.log(data.data);
} catch (err) {
  // axios throws on 4xx/5xx; the envelope is on err.response.data.
  throw new Error(`${err.response?.status} ${err.response?.data?.message ?? err.message}`);
}

Node (no deps)
import { request } from 'node:https';

// The dependency-free version, for somewhere fetch is not available.
const send = (payload) =>
  new Promise((resolve, reject) => {
    const req = request(
      'https://api.leadx.in/api/key/protected/subscription/queued/SUBSCRIPTIONID',
      {
        method: 'DELETE',
        headers: {
          apikey: process.env.LEADX_API_KEY,
        },
      },
      (res) => {
        let raw = '';
        res.on('data', (chunk) => { raw += chunk; });
        res.on('end', () => {
          const body = JSON.parse(raw);
          if (res.statusCode >= 400) reject(new Error(`${res.statusCode} ${body.message}`));
          else resolve(body);
        });
      },
    );
    req.on('error', reject);
    
    req.end();
  });

const { data } = await send(null);
console.log(data);

Python
import os
import requests

res = requests.delete(
    "https://api.leadx.in/api/key/protected/subscription/queued/SUBSCRIPTIONID",
    headers={"apikey": os.environ["LEADX_API_KEY"]},
    timeout=30,
)

payload = res.json()
res.raise_for_status()
print(payload["data"])

PHP
<?php
$ch = curl_init('https://api.leadx.in/api/key/protected/subscription/queued/SUBSCRIPTIONID');
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST  => 'DELETE',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER     => [
        'apikey: ' . getenv('LEADX_API_KEY'),
    ],
]);

$response = curl_exec($ch);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

$payload = json_decode($response, true);
if ($status >= 400) {
    throw new RuntimeException("$status {$payload['message']}");
}

print_r($payload['data']);

`POST /subscription/seats/change`

Change seat upgrade.

Auth apikey · Success 200

:::note Used by the web app pages/SeatManagement.jsx :::

cURL
curl -X POST 'https://api.leadx.in/api/key/protected/subscription/seats/change' \
  -H 'apikey: $LEADX_API_KEY'

fetch
// Node 18+ and every modern browser ship fetch.
const res = await fetch('https://api.leadx.in/api/key/protected/subscription/seats/change', {
  method: 'POST',
  headers: {
    apikey: process.env.LEADX_API_KEY,
  },
});

const payload = await res.json();
if (!res.ok) {
  // Errors carry { status, success, message } — not the success envelope.
  throw new Error(`${res.status} ${payload.message}`);
}

console.log(payload.data);

axios
import axios from 'axios';

const leadx = axios.create({
  baseURL: 'https://api.leadx.in/api/key/protected',
  headers: { apikey: process.env.LEADX_API_KEY },
});

try {
  const { data } = await leadx.post(
    '/subscription/seats/change'
  );
  console.log(data.data);
} catch (err) {
  // axios throws on 4xx/5xx; the envelope is on err.response.data.
  throw new Error(`${err.response?.status} ${err.response?.data?.message ?? err.message}`);
}

Node (no deps)
import { request } from 'node:https';

// The dependency-free version, for somewhere fetch is not available.
const send = (payload) =>
  new Promise((resolve, reject) => {
    const req = request(
      'https://api.leadx.in/api/key/protected/subscription/seats/change',
      {
        method: 'POST',
        headers: {
          apikey: process.env.LEADX_API_KEY,
        },
      },
      (res) => {
        let raw = '';
        res.on('data', (chunk) => { raw += chunk; });
        res.on('end', () => {
          const body = JSON.parse(raw);
          if (res.statusCode >= 400) reject(new Error(`${res.statusCode} ${body.message}`));
          else resolve(body);
        });
      },
    );
    req.on('error', reject);
    
    req.end();
  });

const { data } = await send(null);
console.log(data);

Python
import os
import requests

res = requests.post(
    "https://api.leadx.in/api/key/protected/subscription/seats/change",
    headers={"apikey": os.environ["LEADX_API_KEY"]},
    timeout=30,
)

payload = res.json()
res.raise_for_status()
print(payload["data"])

PHP
<?php
$ch = curl_init('https://api.leadx.in/api/key/protected/subscription/seats/change');
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST  => 'POST',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER     => [
        'apikey: ' . getenv('LEADX_API_KEY'),
    ],
]);

$response = curl_exec($ch);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

$payload = json_decode($response, true);
if ($status >= 400) {
    throw new RuntimeException("$status {$payload['message']}");
}

print_r($payload['data']);

Errors SubscriptionNotFound_400

`POST /subscription/seats/preview`

Price a seat change before committing to it.

Auth apikey

:::note Used by the web app pages/SeatManagement.jsx :::

cURL
curl -X POST 'https://api.leadx.in/api/key/protected/subscription/seats/preview' \
  -H 'apikey: $LEADX_API_KEY'

fetch
// Node 18+ and every modern browser ship fetch.
const res = await fetch('https://api.leadx.in/api/key/protected/subscription/seats/preview', {
  method: 'POST',
  headers: {
    apikey: process.env.LEADX_API_KEY,
  },
});

const payload = await res.json();
if (!res.ok) {
  // Errors carry { status, success, message } — not the success envelope.
  throw new Error(`${res.status} ${payload.message}`);
}

console.log(payload.data);

axios
import axios from 'axios';

const leadx = axios.create({
  baseURL: 'https://api.leadx.in/api/key/protected',
  headers: { apikey: process.env.LEADX_API_KEY },
});

try {
  const { data } = await leadx.post(
    '/subscription/seats/preview'
  );
  console.log(data.data);
} catch (err) {
  // axios throws on 4xx/5xx; the envelope is on err.response.data.
  throw new Error(`${err.response?.status} ${err.response?.data?.message ?? err.message}`);
}

Node (no deps)
import { request } from 'node:https';

// The dependency-free version, for somewhere fetch is not available.
const send = (payload) =>
  new Promise((resolve, reject) => {
    const req = request(
      'https://api.leadx.in/api/key/protected/subscription/seats/preview',
      {
        method: 'POST',
        headers: {
          apikey: process.env.LEADX_API_KEY,
        },
      },
      (res) => {
        let raw = '';
        res.on('data', (chunk) => { raw += chunk; });
        res.on('end', () => {
          const body = JSON.parse(raw);
          if (res.statusCode >= 400) reject(new Error(`${res.statusCode} ${body.message}`));
          else resolve(body);
        });
      },
    );
    req.on('error', reject);
    
    req.end();
  });

const { data } = await send(null);
console.log(data);

Python
import os
import requests

res = requests.post(
    "https://api.leadx.in/api/key/protected/subscription/seats/preview",
    headers={"apikey": os.environ["LEADX_API_KEY"]},
    timeout=30,
)

payload = res.json()
res.raise_for_status()
print(payload["data"])

PHP
<?php
$ch = curl_init('https://api.leadx.in/api/key/protected/subscription/seats/preview');
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST  => 'POST',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER     => [
        'apikey: ' . getenv('LEADX_API_KEY'),
    ],
]);

$response = curl_exec($ch);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

$payload = json_decode($response, true);
if ($status >= 400) {
    throw new RuntimeException("$status {$payload['message']}");
}

print_r($payload['data']);

`GET /subscription/upcoming`

Get upcoming subscription changes.

Auth apikey

cURL
curl -X GET 'https://api.leadx.in/api/key/protected/subscription/upcoming' \
  -H 'apikey: $LEADX_API_KEY'

fetch
// Node 18+ and every modern browser ship fetch.
const res = await fetch('https://api.leadx.in/api/key/protected/subscription/upcoming', {
  method: 'GET',
  headers: {
    apikey: process.env.LEADX_API_KEY,
  },
});

const payload = await res.json();
if (!res.ok) {
  // Errors carry { status, success, message } — not the success envelope.
  throw new Error(`${res.status} ${payload.message}`);
}

console.log(payload.data);

axios
import axios from 'axios';

const leadx = axios.create({
  baseURL: 'https://api.leadx.in/api/key/protected',
  headers: { apikey: process.env.LEADX_API_KEY },
});

try {
  const { data } = await leadx.get(
    '/subscription/upcoming'
  );
  console.log(data.data);
} catch (err) {
  // axios throws on 4xx/5xx; the envelope is on err.response.data.
  throw new Error(`${err.response?.status} ${err.response?.data?.message ?? err.message}`);
}

Node (no deps)
import { request } from 'node:https';

// The dependency-free version, for somewhere fetch is not available.
const send = (payload) =>
  new Promise((resolve, reject) => {
    const req = request(
      'https://api.leadx.in/api/key/protected/subscription/upcoming',
      {
        method: 'GET',
        headers: {
          apikey: process.env.LEADX_API_KEY,
        },
      },
      (res) => {
        let raw = '';
        res.on('data', (chunk) => { raw += chunk; });
        res.on('end', () => {
          const body = JSON.parse(raw);
          if (res.statusCode >= 400) reject(new Error(`${res.statusCode} ${body.message}`));
          else resolve(body);
        });
      },
    );
    req.on('error', reject);
    
    req.end();
  });

const { data } = await send(null);
console.log(data);

Python
import os
import requests

res = requests.get(
    "https://api.leadx.in/api/key/protected/subscription/upcoming",
    headers={"apikey": os.environ["LEADX_API_KEY"]},
    timeout=30,
)

payload = res.json()
res.raise_for_status()
print(payload["data"])

PHP
<?php
$ch = curl_init('https://api.leadx.in/api/key/protected/subscription/upcoming');
curl_setopt_array($ch, [
    CURLOPT_CUSTOMREQUEST  => 'GET',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER     => [
        'apikey: ' . getenv('LEADX_API_KEY'),
    ],
]);

$response = curl_exec($ch);
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

$payload = json_decode($response, true);
if ($status >= 400) {
    throw new RuntimeException("$status {$payload['message']}");
}

print_r($payload['data']);

POST /subscription​

DELETE /subscription/:subscriptionId​

POST /subscription/change​

DELETE /subscription/current​

GET /subscription/history​

GET /subscription/list​

POST /subscription/preview​

DELETE /subscription/queued​

DELETE /subscription/queued/:subscriptionId​

POST /subscription/seats/change​

POST /subscription/seats/preview​

GET /subscription/upcoming​

`POST /subscription`

`DELETE /subscription/:subscriptionId`

`POST /subscription/change`

`DELETE /subscription/current`

`GET /subscription/history`

`GET /subscription/list`

`POST /subscription/preview`

`DELETE /subscription/queued`

`DELETE /subscription/queued/:subscriptionId`

`POST /subscription/seats/change`

`POST /subscription/seats/preview`

`GET /subscription/upcoming`