How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Need help?

Contact us
Sap Ariba

SAP Ariba Invoices API

Process and manage invoices including creation, approval workflows, status tracking, and payment reconciliation.

Documentation Provider Profile APIs.io OpenAPI GitHub

This API exposes 5 operations across 4 paths, and defines 14 schemas. It is described by OpenAPI 3.2.0, at version 1.0.0.

Requests are made against 2 base URLs: https://openapi.ariba.com/api/procurement/v1, https://sandbox.ariba.com/api/procurement/v1.

5 operations 4 paths 14 schemas 2 GET3 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0.0
Base URL
https://openapi.ariba.com/api/procurement
Authentication
OAuth 2.0
Contact
SAP Ariba API Support
License
SAP Developer License
Terms of Service
View terms
Resource Areas
1

Authentication & Security 1

SAP Ariba Invoices API declares 1 security scheme for authenticating requests. It supports OAuth 2.0 (oauth2) using the clientCredentials flow. By default, every request must be authenticated.

  • oauth2 — OAuth 2.0 Client Credentials flow for SAP Ariba API authentication. Obtain client credentials from the SAP Ariba Developer Portal.

Paths & Operations 5

Across 4 paths, the API surfaces 5 operations — 2 GET, 3 POST. Each is listed below with its method, path, parameters, and response codes.

Invoices 5

Process and manage invoices including creation, approval workflows, status tracking, and payment reconciliation.

GET
/invoices
List Invoices
listInvoices 10 params → 200400401403429500
POST
/invoices
Create an Invoice
createInvoice 1 param body → 201400401403409422429500
GET
/invoices/{invoiceId}
Get an Invoice
getInvoice 2 params → 200401403404429500
POST
/invoices/{invoiceId}/approve
Approve an Invoice
approveInvoice 2 params body → 200401403404409429500
POST
/invoices/{invoiceId}/reject
Reject an Invoice
rejectInvoice 2 params body → 200401403404409429500

Schemas 14

The contract defines 14 schemas that model the data the API accepts and returns. The most detailed are Invoice (24 properties), InvoiceLineItem (14 properties), InvoiceCreate (14 properties), Address (8 properties). Each schema is shown below with its type and property counts.

Money
object
Monetary amount with currency code following ISO 4217
2 properties 2 required
PaymentTerms
object
Payment terms governing when and how invoices should be paid
5 properties
UnitOfMeasure
object
Unit of measure specification following UN/ECE Recommendation 20 standard codes
2 properties 1 required
InvoiceCreate
object
Request body for creating a new invoice
14 properties 6 required
SupplierReference
object
Reference to a supplier on the SAP Ariba Network
3 properties 1 required
CommodityCode
object
UNSPSC commodity classification code
3 properties 1 required
BuyerReference
object
Reference to a buyer organization
3 properties
Address
object
Postal address structure used for shipping, billing, and company addresses
8 properties
InvoiceStatus
string
Status of an invoice in the processing lifecycle
ErrorResponse
object
Standard error response structure
1 property 1 required
InvoiceListResponse
object
Paginated list of invoices
4 properties
TaxDetail
object
Tax calculation details for an invoice or line item
6 properties
Invoice
object
An invoice document submitted by a supplier for goods or services delivered against a purchase order
24 properties 6 required
InvoiceLineItem
object
A line item on an invoice
14 properties 5 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

sap-ariba-invoices-api-openapi.yml Raw ↑
#Invoices
← Back to S APIs
API Details
ID
sap-ariba:sap-ariba-invoices-api
Base URL
https://openapi.ariba.com/api/procurement
Docs
https://developer.ariba.com/api/procurement
Provider
Sap Ariba
APIs.io →  GitHub →
Explore more
All APIs Providers APIs.io Network
Work with this as data

Every API here is available over the API and to AI agents over MCP. APIs is not yet its own endpoint on the v1 API. Reach this content through network search and the tag graph, or the MCP server below.

Installs https://mcp.apievangelist.com/mcp in Claude, Cursor, VS Code and the rest — one button, every client.

MCP tools for apis
4 tools reach this content
  • search_api_evangelistSearch every content type across the network at once.
  • find_relatedThe shared-tag relevance graph — what else covers this.
  • get_tagEverything one tag labels, across all content types.
  • guide_topicPRO — a curated bundle for a topic: area, guidance, rules, papers, stories, services.
All tools & prompts
Call it yourself
curl for this page
Search the network for this 
curl "https://api.apievangelist.com/v1/search?q=sap-ariba-invoices-api&limit=10"
Everything under a tag 
curl "https://api.apievangelist.com/v1/tags/sap-ariba-invoices-api"

Discovery needs no key. Full bodies and the synthesis endpoints are Pro.

Get an API key

Free tier, no email required. Sign in with whichever identity you already have.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have. Your account

Where this information came from

This is an independent, third-party profile of SAP Ariba Invoices API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.