Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 1 Complete, well-documented, and agent-ready

Oracle Fusion Cloud ERP APIREST API for Oracle Fusion Cloud ERP providing access to financial management, procurement, and project man...69.5

Strong 11 Solid coverage with minor gaps

IFS Procurement APIPurchase orders and supplier management62.9 SAM.gov Acquisition Subaward Reporting Public APIDelivers federal subcontract data via SAM.gov.62.2 SAM.gov Contract Awards APIRetrieves contract listings with searchable parameters via SAM.gov.62.2 SAM.gov Entity Management APIThe Entity Management API allows users to request Unclassified (Public), Controlled Unclassified Informatio...62.2 SAM.gov Entity/Exclusions Extracts Download APIThe Extracts Download API allows users to request Unclassified (Public), Controlled Unclassified Informatio...62.2 SAM.gov Exclusions APIThe Exclusions API allows users to request Public Exclusion Information based on various optional request p...62.2 SAM.gov Subaward Reporting Bulk Upload APIPublishes subcontract and subaward reports to SAM.gov.62.2 SAM.gov Subcontracting Plan Reporting Outbound APIThe Subcontracting Plan Reports (SPR) API returns Individual Subcontracting Reports and Summary Subcontract...62.2 ServiceNow AP Invoice APIThe ServiceNow AP Invoice API provides REST endpoints for managing accounts payable invoice records on the ...60.7 Oracle Fusion Cloud Procurement REST APIREST APIs for managing procurement data in Oracle Fusion Cloud including purchase orders, purchase requisit...60.2 Stotles MCP ServerHosted, remote Model Context Protocol server exposing Stotles public sector market data to AI chat tools an...57.7

Developing 44 Usable, with meaningful gaps to close

Workday Procurement APIEndpoints for managing suppliers and purchase orders.53.3 Workday Strategic Sourcing APIStrategic Sourcing API for managing sourcing events, awards, contracts, suppliers, spend categories, and pr...53.3 Coupa Procurement APIThe Coupa Procurement API provides RESTful endpoints for managing the full procure-to-order lifecycle inclu...51.9 Proactis Accounting APIConfigure the accounting structures that spend is coded against — departments, cost centers, cost accounts ...51.4 Proactis Contract APICreate contracts in Proactis from an external system. The narrowest of the ten services — creation is the o...51.4 Factorial Procurement APIPurchase orders, purchase requests, and purchase types. Added in v2026-01-01.51.3 PeopleSoft Procurement APIProcurement and purchasing operations49.4 SAP Ariba APIsProcurement and supply chain APIs for sourcing, contracts, and supplier management.49.3 Climatiq Procurement APISpend-based emissions for purchased goods and services.48.3 Arkestro MCP ServerRemote Model Context Protocol server operated by Arkestro, authorized with OAuth 2.1 authorization code flo...47.5 Dynamics 365 Supply Chain Management APIAPI for managing inventory, warehouse operations, procurement, and supply chain processes.46.2 Matchory Discovery APIThe Matchory Discovery API exposes the resolved-and-enriched supplier data layer — verified supplier profil...46.0 SERTICA Web APIThe SERTICA Web API - the single REST/JSON contract behind every SERTICA module. 3,340 operations across 25...45.6 Cofactr Platform APIREST API for the Cofactr platform: BOMs, purchase orders, kits, invoices, and inventory, scoped per organiz...45.1 Concur Purchase Order APIGives SAP Concur clients the ability to leverage external data to create and update approved purchase order...43.0 Concur Purchase Request APIEnables SAP Concur clients to leverage external data to create purchase requests for pre-authorization of p...43.0 SAP Business ByDesign OData Business Objects APIOData v2 REST API for UI-driven access to SAP Business ByDesign business objects. Supports querying, readin...41.9 SAP Business ByDesign Procurement APIAccess purchase orders, supplier invoices, and procurement-related business objects.41.9 SAP Business ByDesign SOAP Web ServicesSOAP-based web services API for system-to-system integration with SAP Business ByDesign. Provides access to...41.9 Mati Logistics Track and Trace APIREST/JSON API versioned under /v2 at https://api.matilogistics.com for tracking requests, shipments, contai...41.8 Vendr MCP ServerThe Vendr Model Context Protocol (MCP) server exposes Vendr pricing intelligence to AI agents via the MCP s...41.1 Tipalti Procurement REST APIREST API providing programmatic access to Tipalti Procurement data, enabling integration for purchase order...40.3 Tipalti REST APIModern RESTful API for payee onboarding, payment processing, invoice management, and procurement workflows....40.3 Attachments APIUpload and manage file attachments associated with sourcing events, contracts, and other procurement object...39.4 Awards APIManage sourcing award decisions for completed events, tracking supplier selection outcomes and award values...39.4 Contracts APIManage contracts within the strategic sourcing platform, including creation, retrieval, and updates. Versio...39.4 Events APIManage sourcing events including RFPs, RFIs, and reverse auctions. Supports creating events from templates,...39.4 Payments APIManage payment records associated with procurement transactions and contract fulfillment. Version 1.0.39.4 Projects APIManage procurement projects that organize and group related sourcing events and activities. Version 1.0.39.4 Reports APIAccess procurement analytics and reporting data from the Workday Strategic Sourcing platform. Version 1.0.39.4 Spend Categories APIManage spend category taxonomies used to classify procurement spending within the Workday Strategic Sourcin...39.4 Suppliers APIManage supplier companies and contacts in the Workday Strategic Sourcing platform. Supports creating, updat...39.4 Asset Management APIManages asset-related data within SAP Ariba for tracking and maintaining procurement-related assets.39.3 Create Procurement Workspace APIEnables programmatic creation of procurement workspaces for managing procurement projects and activities.39.3 ETendering Notice Management APIManages electronic tendering notices for public sector and regulated procurement processes.39.3 Guided Buying Functional Documents APIManages functional documents within the SAP Ariba Guided Buying experience for streamlined procurement.39.3 Integration Event Monitoring Query API for ProcurementQueries integration event data for monitoring and troubleshooting procurement integration processes.39.3 Integration Monitoring API for ProcurementMonitors integration processes and data flows for procurement operations between SAP Ariba and connected sy...39.3 Internal Catalogs Shop APIProvides access to internal catalog shopping functionality for procurement users to browse and select items.39.3 Master Data Integration Job Status API for Operational ProcurementMonitors the status of master data integration jobs for operational procurement data synchronization.39.3 Master Data Retrieval API for ProcurementRetrieves master data used in operational procurement processes including commodity codes, units of measure...39.3 Operational Reporting API for ProcurementProvides synchronous and asynchronous access to operational procurement data including requisitions, purcha...39.3 SAP Ariba Custom Forms APIEnables creation and management of custom forms for extending procurement and sourcing processes with addit...39.3 SAP Build Work Zone CDM Content API for ProcurementProvides content delivery and management for SAP Build Work Zone integration with SAP Ariba procurement cap...39.3

Thin 26 Limited public surface area

SAP Ariba Contract Compliance APIEnsures contract compliance by validating procurement activities against contract terms and conditions.38.4 SAP Ariba Create Procurement Workspace APIInitiates and creates procurement workspace environments for project collaboration.38.4 SAP Ariba Guided Buying Functional Documents APIManages guided buying documentation and functional purchase request workflows.38.4 SAP Ariba Integration Event Monitoring Query API for ProcurementMonitors and queries integration events for procurement process tracking.38.4 SAP Ariba Integration Monitoring API for ProcurementTracks integration health and performance for procurement system integrations.38.4 SAP Ariba Master Data Retrieval API for ProcurementRetrieves procurement master data including cost centers, accounts, and units of measure.38.4 SAP Ariba Operational Reporting API for ProcurementDelivers operational metrics and reporting data for procurement activities.38.4 Apicbase Procurement APIPurchase orders.36.5 UNFI EDI IntegrationUNFI supports Electronic Data Interchange (EDI) for automated exchanges of purchase orders, invoices, and f...35.9 Zip Procurement APIThe Zip Procurement API is a REST-based interface for automating and integrating enterprise procurement wor...34.5 JAGGAER Advanced Sourcing Optimizer (ASO) APIREST/JSON API surface for the JAGGAER (formerly SciQuest) Advanced Sourcing Optimizer, secured with OAuth 2...33.8 Tradogram APIThe Tradogram REST API enables two-way data synchronization between Tradogram and external systems. It prov...32.7 Arrow Electronics Order APIThe Arrow Electronics Order API enables automated order placement for electronic components at Arrow.com an...32.2 SAM.gov Contract Awards APIThe Contract Awards API provides access to federal contract award information from SAM.gov, including award...31.0 SAM.gov Get Opportunities Public APIThe Get Opportunities Public API provides all published contract opportunity details based on request param...31.0 SAM.gov Opportunity Management APIThe Opportunity Management API allows authorized users to programmatically submit, update, and manage contr...31.0 SAM.gov Entity Management APIFederal Service for Award Management (SAM) entity registration, exclusions, and assistance-listings data pu...30.6 AAR AirvoyantAirvoyant is AAR's AI-driven parts procurement platform, launched April 2026 with Delta Air Lines and Air C...29.7 Unit4 ERPx REST APIComprehensive REST API for Unit4 ERPx cloud ERP platform covering time and expenses, personnel, payroll, pr...28.9 Spendflo APIThe Spendflo API provides programmatic access to SaaS spend management, procurement workflows, vendor manag...28.5 Vendr Pricing APIDelivers actionable pricing insights including fair price predictions and negotiation guidance tailored to ...27.7 Vendr Scope APIEnables communication of detailed purchasing needs in text or file format, whether for complex enterprise s...27.7 Vendr Webhooks APIFacilitates creation and management of webhooks for monitoring Vendr's data processing events, enabling int...27.7 Oracle Procurement REST APIREST API for managing procurement operations including requisitions, purchase orders, and supplier informat...27.4 Sastrify PlatformThe Sastrify platform provides SaaS management capabilities including software discovery, license optimizat...27.4 Oracle Purchasing APIAPI for managing purchase orders, requisitions, and procurement operations.26.8

Emerging 16 Early or largely undocumented

Gatekeeper REST APITenant-scoped REST API for the Gatekeeper contract and vendor management platform. Exposes vendors, contrac...25.3 OpenGovOpenGov sells a cloud ERP, budgeting, financial-reporting, permitting, licensing, and procurement suite to ...23.4 SAM.gov APIsSystem for Award Management (SAM.gov), the U.S. federal procurement and financial assistance system, expose...23.4 Certinia Supply Chain Management (SCM) APICertinia Supply Chain Management Apex API (FFAAPI) for inventory, sales and purchase orders, and fulfillmen...22.6 Coupa Core APIThe Coupa Core API is a UTF-8, RESTful interface (XML and JSON) for creating, updating, and acting on indiv...20.9 BGOV Government Contracting IntelligenceAccess federal contract award data, procurement intelligence, and vendor spending data. Track USASpending.g...20.6 Omnea Public APIOmnea's documented public REST API for programmatic access to the procurement platform. The reference is se...19.5 PeopleSoft Purchasing APIREST API for purchase requisitions, purchase orders, receiving, and procurement reporting.17.7 Anixter eCommerce Integration APIAnixter (now part of Wesco International) provides B2B eCommerce integration services including EDI (Electr...15.2 DLA Internet Bid Board System (DIBBS)Web-based application used by the Defense Logistics Agency to post requests for quote, solicitations, award...14.2 DTRA Doing BusinessProcurement and partnership portal that publishes solicitations, Broad Agency Announcements, small-business...14.2 FedMallDoD procurement marketplace operated by DLA where authorized buyers from federal, state, local, tribal, and...14.2 Airbase Purchase Requests & Orders APICreate and track guided purchase requests and purchase orders, including intake details, line items, vendor...13.4 Sunyur Open PlatformSunyur's enterprise procurement open integration platform ("聚贤阁"). Exposes an accessToken-authenticated API...13.1 Chief Acquisition Officers Council ResourcesThe CAOC publishes its charter, membership roster, meeting summaries, working group output, and federal acq...12.3 Deposco Purchase Orders APICreate and search purchase orders for inbound inventory. Modeled from Deposco integration references - PUT ...12.1

Minimal 3 Almost no public developer surface

DigitalNOW ERP Punchout (cXML / OCI)Punchout / roundtrip integration that connects a customer's ERP or third-party procurement system to shop.d...8.0 Federal Government Contracts & Procurement BlogAttorney-authored LexBlog covering federal contracting and procurement law.7.9 Coupa Approvals Handling APIHandles invoice, requisition, and contract approvals between Zurich's Coupa procurement platform and downst...7.4

Unrated 1 Not yet scored

xCBL — XML Common Business LibraryxCBL 4.0 is a royalty-free library of XML business documents and reusable components for business-to-busine...

Companies reaching this through an API (23)

These companies publish an API, specification or operation carrying “Procurement” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

Score breakdown

Frequency

68.5

log-scaled weighted occurrences

Breadth

6.1

spread across providers

Quality lift

24.2

mean composite of providers using it

Cohesion

8.6

strength of nearest seed neighbor

Where this tag comes from

Provider tag221

Api tag102

Openapi tag6

Openapi op tag12

Cohort brief

Auto-generated

The 213 providers in the APIs.io catalog tagged Procurement, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

213

all scored

Mean Kin Score

21.8

-2.1 vs catalog 23.9

Mean Agent Readiness

10.7

-1.3 vs catalog 12

Spread

1.2–62.2

median 16.3 · σ 14.8

How the 213 split by band

Exemplar 0Strong 6Developing 32Thin 34Emerging 83Minimal 58

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Access Clarity	27.8	26.5	+1.3	213
Contract Governance	6.5	6.4	+0.1	213
Discoverability	59.7	61.2	-1.5	213
Operational Transparency	11.3	14	-2.7	213
Contract Quality	16.7	19.8	-3.1	213
Developer Ergonomics	17.5	23.4	-5.9	213

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes

Artifact	This cohort	Catalog	Difference
MCP server (any)	9%	10%	-1
MCP server (first-party)	13%	13%	0
Agent Skills	0%	0%	0
OAuth scopes	13%	11%	+2
Security	99%	97%	+2
Arazzo workflows	1%	2%	-1
Governance rules	10%	14%	-4

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score

1 General Services Administration 62.2
2 PlateIQ 61.9
3 Malt 59.2
4 Starbridge 59.2
5 Stotles 57.7
6 Qubiqle 56.3
7 Coupa 51.9
8 Govly 51.9
9 Proactis 51.4
10 NationGraph 50

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Tools for tags

7 MCP tools reach this

find_tagsBrowse and filter every tag in the catalog.
get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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As a scored cohort

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The distribution (Pro)

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Procurement

Providers using this tag (221)

APIs with this tag (102)