{"id":316,"date":"2024-01-19T23:40:50","date_gmt":"2024-01-19T22:40:50","guid":{"rendered":"https:\/\/ksefapi.pl\/?page_id=316"},"modified":"2025-12-15T22:42:02","modified_gmt":"2025-12-15T21:42:02","slug":"api-ksef-biblioteki-integracja","status":"publish","type":"page","link":"https:\/\/ksefapi.pl\/en\/api-ksef-biblioteki-integracja\/","title":{"rendered":"KSeF API \u2013 functionalities, tools, integration"},"content":{"rendered":"<h1><span class=\"HwtZe\" jsaction=\"mouseup:Sxi9L,BR6jm; mousedown:qjlr0e\" jsname=\"jqKxS\" lang=\"pl\"><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz ChMk0b\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\">KSeF API functions and features<\/span><\/span><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\"> <\/span><\/span><\/span><\/h1>\n<p>Below we present no<span class=\"HwtZe\" jsaction=\"mouseup:Sxi9L,BR6jm; mousedown:qjlr0e\" jsname=\"jqKxS\" lang=\"pl\"><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz ChMk0b\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\">a list of currently available and future functionalities enabling full integration with <a href=\"https:\/\/www.podatki.gov.pl\/ksef\/\">National e-Invoice System<\/a>:<\/span><\/span><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\"> <\/span><\/span><\/span><\/p>\n<ul>\n<li><span class=\"HwtZe\" jsaction=\"mouseup:Sxi9L,BR6jm; mousedown:qjlr0e\" jsname=\"jqKxS\" lang=\"pl\"><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz ChMk0b\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\">Sending and receiving e-Invoices and UPOs from the KSeF system<\/span><\/span><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\"> <\/span><\/span><\/span><\/li>\n<li><span class=\"HwtZe\" jsaction=\"mouseup:Sxi9L,BR6jm; mousedown:qjlr0e\" jsname=\"jqKxS\" lang=\"pl\"><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz ChMk0b\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\">Generating e-Invoices in XML format <\/span><\/span><\/span><\/li>\n<li><span class=\"HwtZe\" jsaction=\"mouseup:Sxi9L,BR6jm; mousedown:qjlr0e\" jsname=\"jqKxS\" lang=\"pl\"><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz ChMk0b\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\">Generating a preview (visualization) of e-Invoices in PDF or HTML format<\/span><\/span><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\"> <\/span><\/span><\/span><\/li>\n<li>Searching and downloading sales and cost invoices<\/li>\n<li>Offline24 support (coming soon)<\/li>\n<\/ul>\n<h1><span class=\"HwtZe\" jsaction=\"mouseup:Sxi9L,BR6jm; mousedown:qjlr0e\" jsname=\"jqKxS\" lang=\"pl\"><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz ChMk0b\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\">Available tools<\/span><\/span><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\"> <\/span><\/span><\/span><\/h1>\n<p><span class=\"HwtZe\" jsaction=\"mouseup:Sxi9L,BR6jm; mousedown:qjlr0e\" jsname=\"jqKxS\" lang=\"pl\"><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz ChMk0b\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\">Current and future tools:<\/span><\/span><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\"> <\/span><\/span><\/span><\/p>\n<ul>\n<li><span class=\"HwtZe\" jsaction=\"mouseup:Sxi9L,BR6jm; mousedown:qjlr0e\" jsname=\"jqKxS\" lang=\"pl\"><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz ChMk0b\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\">Direct call to <a href=\"\/en\/api-test\/swagger-ui\/index.html\/#\/\">REST API<\/a><\/span><\/span><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\"><\/span><\/span><\/span><\/li>\n<li><span class=\"HwtZe\" jsaction=\"mouseup:Sxi9L,BR6jm; mousedown:qjlr0e\" jsname=\"jqKxS\" lang=\"pl\"><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz ChMk0b\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\"><a href=\"\/en\/pobierz-ksef-php-java-net\/\">Programming libraries<\/a> in languages: JAVA, C#, PHP<\/span><\/span><\/span><\/li>\n<\/ul>\n<h1><span class=\"HwtZe\" jsaction=\"mouseup:Sxi9L,BR6jm; mousedown:qjlr0e\" jsname=\"jqKxS\" lang=\"pl\"><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz ChMk0b\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\">Integration methods<\/span><\/span><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\"> <\/span><\/span><\/span><\/h1>\n<p><span class=\"HwtZe\" jsaction=\"mouseup:Sxi9L,BR6jm; mousedown:qjlr0e\" jsname=\"jqKxS\" lang=\"pl\"><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz ChMk0b\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\">Depending on your needs, you can use our communication tools directly from your system (On-premise) or through our architecture (SaaS), which ensures the highest level of availability.<\/span><\/span><\/span><\/p>\n<p><span class=\"HwtZe\" jsaction=\"mouseup:Sxi9L,BR6jm; mousedown:qjlr0e\" jsname=\"jqKxS\" lang=\"pl\"><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz ChMk0b\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\">Interested? Go to our website. <a href=\"\/en\/ksef-cennik-oferta\/\">Offers<\/a> and choose the best plan for your business.<\/span><\/span><\/span><\/p>\n<p><span class=\"HwtZe\" jsaction=\"mouseup:Sxi9L,BR6jm; mousedown:qjlr0e\" jsname=\"jqKxS\" lang=\"pl\"><span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz ChMk0b\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\">Maybe you have additional questions?<\/span><\/span> <span jsaction=\"agoMJf:PFBcW;MZfLnc:P7O7bd;nt4Alf:pvnm0e,pfE8Hb,PFBcW;B01qod:dJXsye;H1e5u:iXtTIf;lYIUJf:hij5Wb;bmeZHc:iURhpf;Oxj3Xe:qAKMYb,yaf12d\" jsname=\"txFAF\" class=\"jCAhz ChMk0b\" jscontroller=\"Gn4SMb\"><span class=\"ryNqvb\" jsaction=\"click:E6Tfl,GFf3ac,tMZCfe; contextmenu:Nqw7Te,QP7LD; mouseout:Nqw7Te; mouseover:E6Tfl,c2aHje\" jsname=\"W297wb\">Welcome to <a href=\"\/en\/kontakt\/\">Contact<\/a>!<\/span><\/span><\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>KSeF API Functions and Features Below is a list of currently available and future functionalities enabling full integration with the National e-Invoice System: Sending and receiving e-Invoices and UPO from the KSeF system Generating e-Invoices in XML format Generating a preview (visualization) of e-Invoices in PDF or HTML format Searching and downloading sales and cost invoices [\u2026]<\/p>","protected":false},"author":2,"featured_media":62,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ksefapi.pl\/en\/wp-json\/wp\/v2\/pages\/316"}],"collection":[{"href":"https:\/\/ksefapi.pl\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ksefapi.pl\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ksefapi.pl\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ksefapi.pl\/en\/wp-json\/wp\/v2\/comments?post=316"}],"version-history":[{"count":6,"href":"https:\/\/ksefapi.pl\/en\/wp-json\/wp\/v2\/pages\/316\/revisions"}],"predecessor-version":[{"id":1039,"href":"https:\/\/ksefapi.pl\/en\/wp-json\/wp\/v2\/pages\/316\/revisions\/1039"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ksefapi.pl\/en\/wp-json\/wp\/v2\/media\/62"}],"wp:attachment":[{"href":"https:\/\/ksefapi.pl\/en\/wp-json\/wp\/v2\/media?parent=316"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}