Korea Citation Index (KCI) and KRI: South Korea’s National Researcher and Citation Database

South Korea runs two linked, government-operated databases that function together as the country’s national research-information backbone: the Korea Citation Index (KCI), a national citation and journal-evaluation database, and KRI (Korea Researcher Information), a national researcher registry. Both are operated by the National Research Foundation of Korea (NRF), and together they play a role in Korean domestic research evaluation and grant administration roughly analogous to what ORCID, Web of Science, and a national CRIS perform separately in many other research systems — except KCI and KRI are purpose-built, government-run, and specific to Korea’s own research and funding ecosystem.

For research administrators and international collaborators working with Korean universities or co-applying to Korean national funding programs, understanding what KCI and KRI actually are, who governs them, and where they fit relative to global tools like ORCID, Scopus, and Web of Science is a practical necessity, not background trivia.

What is the Korea Citation Index (KCI)?

The Korea Citation Index is a non-commercial, national citation database operated by the National Research Foundation of Korea. It was established in 2007 and indexes citation data for journals from publication year 2004 onward, with coverage concentrated on domestic South Korean academic journals — the large majority published in Korean, with a smaller number of English-language Korean journals also included.

KCI exists primarily to solve a coverage gap: research published in Korean, particularly in the humanities and social sciences, is systematically under-represented in English-language-oriented global citation indices such as Scopus and Web of Science. A national citation index lets Korean universities, funders, and evaluators assess the citation impact and relative standing of domestic journals — and by extension the researchers publishing in them — on a basis that international indices were never designed to provide.

Since 2020, NRF has classified KCI-registered journals into four accreditation tiers:

• Not Accredited — registered in KCI but not meeting accreditation review standards.
• Candidate — provisionally under review for accreditation.
• Accredited — meets NRF’s editorial, publication-ethics, and citation-quality standards.
• Excellent Accredited — a smaller top tier reserved for journals that clear a further qualitative review on top of standard accreditation.

This tiering matters in practice because accreditation status is commonly used within Korean universities and evaluation bodies as a proxy signal for journal quality when assessing a researcher’s publication record, in much the same functional role that journal-impact-factor tiers or indexing status in Scopus/Web of Science play in other national systems — though the specific weight given to KCI tier in any individual institution’s promotion, tenure, or grant-evaluation criteria is set locally and varies by university and discipline; this page describes the national infrastructure, not any single institution’s evaluation policy.

KCI is searchable directly at kci.go.kr. A subset of KCI content (the “KCI Korean Journal Database”) is also made available as a regional database within the Clarivate Web of Science platform, giving KCI-indexed Korean journals visibility inside a search environment international researchers already use, without KCI itself being part of the Web of Science Core Collection’s global indices.

What is KRI (Korea Researcher Information)?

KRI is South Korea’s national researcher-registry database, accessible at kri.go.kr. Where KCI indexes journals and citations, KRI holds individual researcher records: career history, institutional affiliation, degrees, and project and publication history. It functions as Korea’s national researcher-identity layer for domestic grant administration.

The practical significance of KRI for anyone applying to NRF-administered funding is direct: researchers — including principal investigators and named co-investigators — generally need an active, current KRI researcher profile before they can be entered on an NRF grant application. Registering or updating a KRI profile is typically an early, required step in preparing an NRF proposal, not an optional add-on. International researchers named on a Korean-led collaborative project, or applying through joint international programs administered by NRF, should expect to need a KRI registration as part of that process.

KRI is directly linked to KCI: publication records indexed in KCI feed into and help verify a researcher’s publication history inside their KRI profile, in a similar structural role to how Crossref-deposited metadata auto-populates an ORCID record — though KRI and ORCID are separate, non-interoperable systems built for different purposes (national grant administration versus a global, portable researcher identifier).

Governance: NRF and how KCI/KRI fit into Korea’s research infrastructure

Both KCI and KRI are operated by the National Research Foundation of Korea (NRF), a public institution under South Korea’s Ministry of Science and ICT (MSIT). NRF was established in 2009 through the merger of three predecessor bodies: the Korea Science and Engineering Foundation (KOSEF), the Korea Research Foundation (KRF), and the Korea Foundation for International Cooperation of Science and Technology (KICOS). NRF is the primary national agency for distributing academic and basic-science research funding in Korea, and KCI/KRI are core pieces of the administrative infrastructure it uses to run that funding system — evaluating journal/researcher output on the citation side, and identifying and verifying applicants on the researcher-registry side.

It is worth distinguishing NRF’s role here from the Korea Institute of Science and Technology Information (KISTI), a separate Korean public institution that operates other pieces of national research infrastructure, including the Korean DOI Center (Korea’s DOI registration agency) and Korea’s integrated science and technology information search platform. KISTI and NRF are both government-affiliated bodies serving Korea’s national research system, but they are distinct organizations with different mandates — KISTI is not the operator of KCI or KRI.

KCI and KRI compared to global CRIS and identifier infrastructure

For readers more familiar with the international research-information landscape, KCI and KRI are best understood as Korea’s own, centrally-run equivalent of functions that are often split across separate global and institutional systems elsewhere:

• KCI performs a role comparable to a national citation index layered on top of (not a replacement for) global tools like Scopus and Web of Science — similar in concept to how some other countries maintain domestic bibliometric indices to capture nationally-published, often non-English-language, research output that global indices under-represent.
• KRI performs a role comparable to a national researcher registry, similar in spirit to what a country-level CRIS (Current Research Information System) does for institutional research administration — see CASRAI’s CRIS vs institutional repository vs RIMS comparison for how those categories are typically distinguished at the institutional level. KRI is centralized at the national level rather than run per-institution, which is a meaningfully different architecture from most university-run CRIS deployments.

Both remain distinct from global, portable researcher identifiers such as ORCID: an ORCID iD travels with a researcher across institutions and countries, while a KRI profile is specific to Korea’s national funding administration and is not a substitute for maintaining an ORCID record for international visibility.

Practical notes for research administrators and international collaborators

• Publishing in a KCI-indexed journal is a domestic Korean consideration, not an international-visibility strategy. KCI accreditation signals standing within Korea’s national evaluation system; it does not substitute for indexing in Scopus or Web of Science for researchers whose primary audience or evaluation criteria is international.
• Language matters. Both kci.go.kr and kri.go.kr are Korean-government systems; while portions of NRF’s own site are available in English, day-to-day use of KCI and KRI (journal search, researcher profile registration) is primarily Korean-language, and international collaborators should expect to need institutional or local-partner support to navigate registration.
• Confirm requirements with the specific NRF program. Exactly when a KRI profile is required (e.g., for every named participant versus only the principal investigator, or only for Korea-based participants) depends on the specific NRF funding call; check the individual program’s application guidelines rather than assuming a single universal rule. See CASRAI’s NRF Korea funding overview for the broader grant-application context.
• KCI accreditation tier is not a fixed, permanent status. Journals are periodically reviewed and can move between tiers, so a journal’s accreditation standing should be checked against the current kci.go.kr listing rather than relied on from an older citation or CV entry.

Frequently asked questions