Core
A resource tag, not a market
No company describes its business as “Core”. It names something an API does — and 41 providers reach it through a specification or operation tag. The APIs below are the answer to this tag; the companies are not.
Providers using this tag (0)
No company classifies itself here — see the resource-tag note above, and the APIs below.
APIs with this tag (41)
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 3 Complete, well-documented, and agent-ready
Strong 8 Solid coverage with minor gaps
SewerAI Core APIThe core API from SewerAI — 15 operation(s) for core.Lumos Core APIThe Core API from Lumos — 27 operation(s) for core.NetBox Labs Core APIThe core API from NetBox Labs — 21 operation(s) for core.Siro Core APIThe Core API from Siro — 23 operation(s) for core.PostHog Core APIThe core API from PostHog — 182 operation(s) for core.IAB Tech Lab Core APIHealth check and API rootVOYGR Core APIThe core API from VOYGR — 2 operation(s) for core.Carrier Global Core APIThe core API from Carrier Global — 13 operation(s) for core.
Developing 8 Usable, with meaningful gaps to close
Avito Core APIThe Core API from Avito — 1 operation(s) for core.Redis CoreCore Redis commands and data structure operations. Redis supports strings, hashes, lists, sets, sorted sets...IRIS Repository Core API (DSpace REST)Community and collection resources of IRIS, UNIL's institutional research information system and open-acces...Aramark Core APIThe Core API from Aramark — 4 operation(s) for core.Engrate Core APIThe Core API from Engrate — 5 operation(s) for core.Agno Core APIThe Core API from Agno — 2 operation(s) for core.University of New South Wales Core APICommunities, collections, sites and the metadata registry.Dokki Core APIIdentity, capability discovery, API keys, notifications and workspace templates.
Thin 15 Limited public surface area
OWASP ZAP Core APIThe core API from OWASP ZAP — 97 operation(s) for core.Spring Security CoreCore security features for authentication and authorization. Provides UserDetailsService, password encoding...ETH Zurich – Swiss Federal Institute of Technology Core APIThe Core API from ETH Zurich – Swiss Federal Institute of Technology — 9 operation(s) for core.spicyapi-com Core APIThe Core API from spicyapi-com — 3 operation(s) for core.McAfee (Trellix) Core APICore server operations and authenticationGoodays Core APIThe core API from Goodays — 22 operation(s) for core.NetBox Core APIThe core API from NetBox — 21 operation(s) for core.University of Ottawa Core APIThe Core API from University of Ottawa — 6 operation(s) for core.Neurable Core APIThe Core API from Neurable — 2 operation(s) for core.MediaWiki Core REST APIModern REST surface available on Wikisource at /w/rest.php/v1/. Provides page reads (source, HTML, bare met...Kangaroo Rewards Core APIThe core API from Kangaroo Rewards — 159 operation(s) for core.University of Melbourne Core APIRepository content hierarchyChamelio APIChamelio API as documented publicly: 14 operations. Contract generated from the documentation by API Evange...Massey University Core APICommunities, collections, items and bitstreams.Spiral Open Access Repository (DSpace 7 REST API)Imperial's institutional open-access repository, exposed over the DSpace 7 HAL+JSON REST API at https://spi...
Emerging 6 Early or largely undocumented
edoc-Server DSpace REST APIPublic, unauthenticated read API of the edoc-Server, the Open Access institutional repository of Humboldt-U...OPNsense Core APICore OPNsense service controllers.Emitrr Core APIThe Core API from Emitrr — 1 operation(s) for core.Crystallize Core / PIM APIRead/write GraphQL API for managing the product information model: shapes, items, topics, language, price v...Log4j CoreThe reference implementation of the Log4j API providing appenders, layouts, filters, lookups and configurat...Feign CoreFeign Core is the base library that processes annotated Java interfaces into templated HTTP requests. It de...
Minimal 1 Almost no public developer surface
Companies reaching this through an API (41)
These companies publish an API, specification or operation carrying “Core” 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.
Agno
Apache Log4j
Aramark
Authentik
Avito
Carrier Global
Chamelio
Crystallize
Dokki
Emitrr
Engrate
ETH Zurich – Swiss Federal Institute of Technology
Evervault
Feign
Goodays
Humboldt-Universität zu Berlin
IAB Tech Lab
Imperial College London
Kangaroo Rewards
Lumos
Massey University
McAfee (Trellix)
NetBox
NetBox Labs
Neurable
OPNsense
OWASP ZAP
PostHog
React
Redis
SewerAI
Siro
spicyapi-com
Spring Security
University of Lausanne
University of Melbourne
University of New South Wales
University of Ottawa
VOYGR
Wealth Reader
Wikisource
Score breakdown
Frequency
48.5
log-scaled weighted occurrences
Breadth
0.0
spread across providers
Quality lift
24.2
mean composite of providers using it
Cohesion
5.0
strength of nearest seed neighbor
Related tags
Institutional Repository 5 co-occurrences
DataCite 5 co-occurrences
Shibboleth 8 co-occurrences
SAML 10 co-occurrences
OAI-PMH 8 co-occurrences
Identity Federation 10 co-occurrences
Research Data 7 co-occurrences
University 8 co-occurrences
Where this tag comes from
Api tag38
Openapi tag22
Openapi op tag103
Work with this as data
Every tag here is available over the APIs.io API and to AI agents over MCP.