Developer tools overview Welcome to Nexio's Developer Tools documentation section. This section contains information for the developer who is creating an integration to a merchant site with the Nexio APIs. Reference tablesInformation about API codes.Learn more → Handling errors and declinesHow to handle common errors and declinesLearn more → Other developer tools Customizing the iframe Finding a transaction Filtering using query parameters Requesting additional response parameters Configuring and receiving webhooks FAQs Glossary Updated about 2 hours ago Table of Contents Other developer tools