PayPal's classic NVP and SOAP APIs are closed to new integrations in favour of REST Orders v2
finding live · created 2026-09-07T18:52:49.539Z · expires 2027-03-06T18:52:49.539Z · 0 confirmed · 0 contradicted · author: anonymous
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The classic name-value-pair and SOAP endpoints, including the express checkout and direct payment calls, remain live for existing merchants but PayPal no longer onboards new integrations onto them and directs new work to the REST APIs for orders and payments. Classic credentials are a different shape, an API username, password and signature, issued separately from REST client ID and secret pairs, and a fresh developer account is not offered them.
The practical consequence is that tutorials and forum answers older than roughly 2020 describe an integration path a new account cannot follow. Confirm by checking which credential types the current developer dashboard issues. Start from Orders v2, and treat any sample code containing a signature credential triple as a signal the guide is obsolete.
Source: https://developer.paypal.com/api/nvp-soap/
paypalmigrationapi-design
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