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API · /licenses-api

Software Licenses API

healthy 3,122 Subscribers

The full SPDX License List as an API — all 729 software licenses with metadata and the complete license text for each. Look up any license by its SPDX id (e.g. MIT, Apache-2.0, GPL-3.0-only, MPL-2.0) and get the exact, canonical license text plus its name, reference URL, see-also links and standard header. Search or list licenses by name/id and filter by OSI-approved (Open Source Initiative), FSF-libre (Free Software Foundation) or deprecated status. Ideal for SBOM / license-compliance tooling, package managers, repository scanners, legal review, and open-source governance dashboards.

#licenses #spdx #open-source #legal #compliance #software
api.oanor.com/licenses-api
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Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
84 ms
Server probes · 24h
Subscribers
3,122
active
Total calls
270
last 7 days
status Full status page → · 16 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 4,500 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 4,500 calls/month
  • 2 req/sec
  • Lookup + search + full text
  • No credit card
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Starter

€5.50 /month

  • 52,000 calls / month
  • 8 requests / second
  • Hard cap (429 above quota, no overage)
  • 52k calls/month
  • 8 req/sec
  • OSI / FSF / deprecated filters
  • Email support
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Pro

€14.50 /month

  • 265,000 calls / month
  • 20 requests / second
  • Hard cap (429 above quota, no overage)
  • 265k calls/month
  • 20 req/sec
  • SBOM / compliance tooling
  • Priority support
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Mega

€37.00 /month

  • 1,320,000 calls / month
  • 50 requests / second
  • Hard cap (429 above quota, no overage)
  • 1.32M calls/month
  • 50 req/sec
  • License-scanning platform
  • Dedicated SLA
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security.txt API

Fetch and parse any domain's RFC 9116 security.txt — the machine-readable file at /.well-known/security.txt that tells security researchers how to report vulnerabilities. Pass a domain and the service locates the file (the canonical .well-known path with a legacy root fallback), parses every field — Contact, Expires, Encryption, Acknowledgments, Preferred-Languages, Canonical, Policy, Hiring and CSAF — and reports whether it is valid (has at least one Contact and a single, non-expired Expires), whether it is PGP-signed, whether it has expired (with the number of days remaining) and a list of issues with concrete advice. A companion endpoint returns the raw file. The request is made server-side; private and internal targets are refused (SSRF-guarded). Built for security audits, vendor and third-party risk assessment, attack-surface reviews and vulnerability-disclosure-policy compliance checks. A security.txt parser and validator — distinct from the HTTP security-header grader (secheaders), the SSL/TLS certificate check (sslcheck) and host reachability (hostcheck). No upstream key, no cache.

api.oanor.com/securitytxt-api

FDA Recalls API

Search official US FDA product recalls — food, drugs and medical devices — from the openFDA enforcement reports. Filter by category, recalling firm, US state, hazard classification (Class I/II/III) and recall status, or look up a single recall by its number. Each record includes the firm, product, reason for recall, distribution and dates. Ideal for compliance monitoring, food-safety, pharma QA, insurance and legal research.

api.oanor.com/recalls-api

DataCite API

DataCite as an API — the global registry of DOIs (Digital Object Identifiers) for research outputs. Where Crossref registers DOIs for journal articles, DataCite registers and describes DOIs for research data, software, samples, dissertations, preprints, models, images and other outputs, from repositories such as Zenodo, Dryad and thousands of institutions. /v1/search?query=climate full-text searches the registry and can be narrowed by resource type (type=dataset, software, text, image, audiovisual, collection, model and more), returning each DOI with its title, type, creators, publisher and publication year. /v1/doi?id=10.5281/zenodo.3509134 returns a single DOI's full metadata — title, resource type, creators, publisher, publication year, description, subjects, version, license and registration date. DOIs look like 10.5281/zenodo.3509134 (Zenodo) or 10.5061/dryad.xxxx (Dryad). Ideal for research-data discovery and citation, data-repository and reference-management tools, software-citation features and reproducibility workflows. Metadata is CC0 from DataCite. This is the registry of research data and software DOIs — distinct from the journal-article DOI index (Crossref) and from preprint and open-access services.

api.oanor.com/datacite-api

End-of-Life (EOL) API

Product end-of-life and support-lifecycle dates as an API, powered by endoflife.date — the community-maintained reference for when software stops being supported. Covers 450+ products across every layer of the stack: Linux distributions (Ubuntu, Debian, RHEL, Alpine…), programming languages (PHP, Python, Node.js, Java, Go, Ruby…), frameworks (Django, Laravel, Spring Boot, React, Angular…), databases (PostgreSQL, MySQL, MongoDB, Redis…), operating systems, browsers, hardware devices and more. List every tracked product; for any product get all of its release cycles with the release date, latest patch version and release date, LTS flag, active-support end date and end-of-life date; and look up a single release cycle on its own. Every cycle is enriched with a computed, live status calculated against today's date — whether the version is still supported, whether it has already reached end of life, how many days remain until end of life and whether active support has ended — so you can answer "is this version still supported?" and "how long until I must upgrade?" in one call. Ideal for dependency auditing, upgrade and migration planning, security and compliance dashboards, CI checks and platform inventories. Product slugs come from the products endpoint (e.g. php, ubuntu, nodejs, postgresql). Computed status is relative to the current UTC date. Data from endoflife.date (CC-BY-SA).

api.oanor.com/endoflife-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Software Licenses API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Software Licenses API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Software Licenses 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 Software Licenses API cost?
Software Licenses API has a free tier with 100 calls / month. Paid plans start at €5.50 / 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 Software Licenses API GDPR-compliant?
All requests to Software Licenses 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/licenses-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/licenses-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/licenses-api/SOME_PATH");
curl_setopt($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/licenses-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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