Gingr Gingr Payments API Charging and refunding cards on file, invoices, and deposits. Documentation GitHub OpenAPI Documentation 📖 Documentation https://docs.gingr.io/documentation 📖 Documentation https://support.gingrapp.com/hc/en-us/sections/26779521691661-Gingr-s-API Specifications ⚙ OpenAPI https://raw.githubusercontent.com/api-evangelist/gingr/refs/heads/main/openapi/gingr-payments-api-openapi.yml