Introduction to the GoCardless API
Making your first request
Adding your first customer
Taking your first payment
Our client libraries
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Importing mandates from another provider
Custom payment pages
Adding metadata to a customer created via the Redirect Flow
Supporting multiple Direct Debit schemes through the API
Guide to using subscriptions through the API
Will cancelling a subscription also cancel any created payments?
How to handle late failures
How to handle chargebacks
Webhooks / Events
Guide to using events / webhooks
Webhook retries / failures
Metadata in webhooks
Handling error messages
PHP client library: "One of your parameters was incorrectly typed”
Error 403: Access Denied/Forbidden
Can I reset my sandbox account?
Do I need to use HTTPS/SSL?
Where do I find the request ID?
Why can't I use plans in the API?
Updated guide to building a Partner integration
Pre-filling the GoCardless hosted payment pages
Partners hosting their own custom payment pages
Dynamic partner webhook URIs
Enabling merchants to collect payments across multiple currencies