Ariba Ariba Procurement API Access procurement data including requisitions, purchase orders, receipts, and payment information. Documentation GitHub OpenAPI Documentation 📖 Documentation https://developer.ariba.com/api/procurement/docs 📖 Authentication https://developer.ariba.com/api/procurement/authentication Specifications ⚙ OpenAPI https://developer.ariba.com/api/procurement/openapi.json Other Resources 🔗 Sandbox https://sandbox.api.ariba.com/v2/procurement