Help Center

API, plugins & webhooks: help and guides

API keys, ready-made plugins and SDKs, webhooks and common API errors.

API keys: project key and secretsEach project has a project key, a live secret, a test secret and a webhook signing secret. What each one does and how to replace a lost one.
Plugins and SDKs for your platformReady-made plugins for WooCommerce, WHMCS, XenForo, game servers and more, plus PHP, Node.js and Python SDKs. Where to get them and how to set up.
Set up webhooks and verify signaturesAdd a webhook URL to your project, send a test ping, verify the signature and credit orders safely when payment events arrive.
Webhooks not arriving: what to checkWebhook not working or failing? Check the address, redirects, firewall, response code, timing and signature, then resend failed deliveries.
Common API errors and rate limitsWhat the most common API errors mean, from invalid credentials and project not approved to duplicate order IDs, low balance and rate limits.

Still need help?Write to us: a person answers, usually within one business day.