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 Procurement REST APIREST APIs for managing procurement data in Oracle Fusion Cloud including purchase orders, purchase requisit...68.4

Strong 1 Solid coverage with minor gaps

Oracle E-Business Suite Purchasing APIPurchase order, requisition, and supplier management59.9

Developing 3 Usable, with meaningful gaps to close

PeopleSoft eProcurement APIDelivered REST API endpoints for requisition management including retrieving requisitions for items, gettin...51.4 Aramark Purchasing APIGets Purchasing Alert details47.0 Oracle Purchasing APIAPI for managing purchase orders, requisitions, and procurement operations.41.2

Thin 2 Limited public surface area

Crunchtime Inventory & Labor APIThe Crunchtime Inventory & Labor API is a REST/JSON web-services API for integrating restaurant back-office...38.6 SYSPRO OData APISYSPRO OData provides RESTful access to SYSPRO data across all functional modules including inventory, prod...29.4

Emerging 1 Early or largely undocumented

PeopleSoft Purchasing APIREST API for purchase requisitions, purchase orders, receiving, and procurement reporting.18.1

Companies reaching this through an API (7)

These companies publish an API, specification or operation carrying “Purchasing” 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.

Aramark Crunchtime Oracle Oracle E-Business Suite Oracle Financials PeopleSoft PeopleSoft Financials

Score breakdown

Frequency

37.0

log-scaled weighted occurrences

Breadth

0.4

spread across providers

Quality lift

28.4

mean composite of providers using it

Cohesion

6.8

strength of nearest seed neighbor

Where this tag sits

Procurement broader

Where this tag comes from

Provider tag14

Api tag8

Openapi tag1

Openapi op tag1

Work with this as data

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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.

All 92 tools →

Call it yourself

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This tag

curl "https://apis.io/api/v1/tags/purchasing"

All tags

curl "https://apis.io/api/v1/tags?limit=25"

As a scored cohort

curl "https://apis.io/api/v1/cohorts/tag/purchasing"

The distribution (Pro)

curl "https://apis.io/api/v1/cohorts/tag/purchasing/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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Purchasing

Providers using this tag (14)

APIs with this tag (8)