Is there a cheap alternative to Web of Science (Clarivate)?

Yes. Web of Science (Clarivate)'s underlying data is public: OpenAlex (~250M works, full citation graph) (CC0); Crossref metadata + retractions (incl. Retraction Watch data) (open/factual metadata). Incumbent: ~$212k/yr site license. Rebuilt: OpenAlex is free; per-call citation lookups at $0.05–0.25 make the marginal query ~4 orders of magnitude cheaper.

Is it legal to rebuild Web of Science (Clarivate) from public data?

Facts and public-domain government data are not copyrightable, but there are real traps here: None on the data (CC0). The trap is quality, not license: disclose disambiguation limits per query This is research, not legal advice.

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Web of Science (Clarivate): what you're actually paying for

Q: What data does Web of Science (Clarivate) actually use?

A curated citation graph, author disambiguation, and journal metrics — over scholarly metadata that now exists openly. Universities are publicly cancelling (2025–26 cancellation wave) in favor of open infrastructure. Key sources: OpenAlex (~250M works, full citation graph) — CC0; Crossref metadata + retractions (incl. Retraction Watch data) — open/factual metadata.

Yes — rebuildable from free public data

Web of Science (Clarivate) typically costs ~$212,000/yr for a research university (FOIA-obtained contract pricing); smaller sites pay five figures. Its core dataset is not proprietary: it is built on OpenAlex (~250M works, full citation graph); Crossref metadata + retractions (incl. Retraction Watch data) — public sources you can access directly for free. What the subscription actually adds is a curated citation graph, author disambiguation, and journal metrics — over scholarly metadata that now exists openly. Universities are publicly cancelling (2025–26 cancellation wave) in favor of open infrastructure.

The free public data underneath

Source	License	Access
OpenAlex (~250M works, full citation graph)	CC0	api.openalex.org, no key required
Crossref metadata + retractions (incl. Retraction Watch data)	open/factual metadata	api.crossref.org

Rebuild recipe

Query OpenAlex for works/authors/institutions/venues + citation counts
Cross-check DOIs against Crossref; flag retractions
Ship per-query confidence flags — OpenAlex author disambiguation is weaker than WoS's hand curation; honesty beats false precision

DIY difficulty: low-to-moderate — excellent open APIs; the work is in honest quality flags

The price math

Incumbent: ~$212k/yr site license. Rebuilt: OpenAlex is free; per-call citation lookups at $0.05–0.25 make the marginal query ~4 orders of magnitude cheaper.

Licensing and legal traps

None on the data (CC0). The trap is quality, not license: disclose disambiguation limits per query

The pay-per-call alternative, live today:

https://citepulse.theaslangroupllc.com/api/ref-check ($0.15)
https://citepulse.theaslangroupllc.com/api/author ($0.10)
https://citepulse.theaslangroupllc.com/api/literature-brief ($0.25)

CitePulse — no subscription, no seat license, USDC per call via x402. Agents can pay programmatically.

Decompose any data product programmatically: GET https://pulse.theaslangroupllc.com/api/unbundle?product=Web — $1.00 per call via x402. 22 products decomposed; honest misses for everything else.

Research as of 2026-07-06 by The Aslan Group LLC (info@theaslangroupllc.com). Product names are used nominatively to identify the products analyzed; all trademarks belong to their owners. Pricing is as publicly reported or contract-disclosed at research time and may change. This is research for build-vs-buy evaluation, not legal advice — verify licenses against the primary source before building.