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API · /orcid-api

ORCID API

healthy 3,573 Subscribers

ORCID as an API — the global researcher identity registry, powered by the ORCID Public API. An ORCID iD (for example 0000-0002-1825-0097) uniquely and persistently identifies a researcher across journals, funders, universities and the entire scholarly record. Search more than 15 million researchers by name, institution, keyword or external identifier using rich Solr field syntax, getting each match's ORCID iD, name, other names and affiliated institutions; read a researcher's public profile including their published and credit names, biography, research keywords, country, personal and lab websites and external identifiers such as Scopus Author ID or ResearcherID; list the works they have claimed on their record with each work's title, type, publication year, journal and DOI; and trace their employment and education affiliations with the organization, role, department and dates. Ideal for research-information systems, author disambiguation, institutional reporting, scholarly tooling and academic search. ORCID iDs come from search results or are supplied directly by the researcher. Data is the public portion of ORCID records (CC0). For the scholarly works and citation graph see the OpenAlex API; for DOIs and journal metadata the Crossref API.

#orcid #researchers #academic #scholarly #identity #research #science
api.oanor.com/orcid-api
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Machine-readable spec so AI agents can integrate this API.

/api/orcid-api/openapi.json
/api/orcid-api/llms.txt

Discovery: GET /api/index.json lists every API.

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
213 ms
Server probes · 24h
Subscribers
3,573
active
Total calls
15
last 7 days
status Full status page → · 40 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 580 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 580 calls/month
  • 2 req/sec
  • Search, profiles & works
  • No credit card
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Starter

€7.20 /month

  • 21,000 calls / month
  • 6 requests / second
  • Hard cap (429 above quota, no overage)
  • 21k calls/month
  • 6 req/sec
  • Works & affiliations
  • Email support
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Pro

€22.50 /month

  • 92,000 calls / month
  • 15 requests / second
  • Hard cap (429 above quota, no overage)
  • 92k calls/month
  • 15 req/sec
  • Author disambiguation
  • Priority support
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Mega

€61.00 /month

  • 380,000 calls / month
  • 40 requests / second
  • Hard cap (429 above quota, no overage)
  • 380k calls/month
  • 40 req/sec
  • Research-info systems
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

DOAJ API

The Directory of Open Access Journals as an API, powered by DOAJ — the authoritative, community-curated index of vetted open-access scholarship covering more than 20,000 quality-controlled journals and 10 million+ articles across every discipline. Search open-access journals with full Elasticsearch query syntax, getting each journal's title, ISSNs, publisher and country, subjects, languages, whether article-processing charges (APC) apply, license and the year it became open access; read a journal's complete record including its subjects with classification scheme, keywords, licences, APC prices, fee-waiver policy, peer-review process, plagiarism detection, long-term preservation and self-archiving (deposit) policies and homepage; search open-access articles returning title, authors, journal, year, DOI, keywords and a free full-text link; and read an article's full metadata with its abstract, authors and affiliations, journal and ISSNs, pages, subjects and direct links to the freely readable full text. Ideal for open-science tooling, library and repository systems, research discovery, APC and policy analysis, and any application that needs legally free, peer-reviewed scholarship. Identify a journal by its ISSN and an article by its DOI or DOAJ id from search results. Data from DOAJ.

api.oanor.com/doaj-api

arXiv API

Search the entire arXiv scholarly-preprint corpus as an API — millions of papers across physics, mathematics, computer science, quantitative biology and finance, statistics, electrical engineering and economics. Query by free text, title, author and/or subject category (e.g. q=transformer&category=cs.AI), with paging and sort by relevance, submission or last-update date, or pull full metadata for any paper by its arXiv id (e.g. 1706.03762 → "Attention Is All You Need"). Every result carries the title, full author list, abstract, primary and cross-list categories, DOI, journal reference, comments and a direct PDF link. Ideal for literature-review and research tools, citation managers, ML/AI paper trackers, academic search and discovery, and science newsletters.

api.oanor.com/arxiv-api

Universities API

Search a database of 10,000+ universities and colleges worldwide (Hipolabs open dataset). Find institutions by name and country, look one up by its email domain, and browse counts per country. Each record includes the official name, country, region, email domains and websites — ideal for sign-up forms, student-email verification, education directories and enrichment.

api.oanor.com/universities-api

Crossref API

Search scholarly literature and look up rich publication metadata from Crossref, the DOI registry behind millions of journal articles, books, chapters, conference papers and datasets. Full-text search across 150+ million works with relevance or citation sorting and optional filters, retrieve any work by its DOI (plain, doi: or URL form accepted), and search journals and publishers. Every work comes back as a clean record with title, authors and ORCIDs, journal/container, publisher, publication date, volume/issue/page, ISSN/ISBN, abstract, subjects, license and citation count. Authoritative open scholarly metadata delivered through a fast, reliable API — ideal for reference managers, repositories, research analytics, discovery tools and academic apps.

api.oanor.com/crossref-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for ORCID API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call ORCID API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for ORCID API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does ORCID API cost?
ORCID API has a free tier with 100 calls / month. Paid plans start at €7.20 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is ORCID API GDPR-compliant?
All requests to ORCID API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Pick an endpoint from the list on the left to see its details and try it.

Code snippets

Sign up to get an API key, then call any path under your slug.

curl https://api.oanor.com/orcid-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/orcid-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/orcid-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
    "https://api.oanor.com/orcid-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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