Crossref alternatives
6 web search MCP servers from other publishers do the same job as Crossref. The closest match comes first, then the best rated, with at most two per publisher.
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Search books and authors, fetch editions, browse subjects, and resolve cover images.
No reviews yetgateway-ready4428/wkFreeSearch and read Apple Contacts — resolves numbers and emails to names, writes off by default
No reviews yetlocal · npm3383/wkFreeSearch and fetch Wikidata entities, execute SPARQL queries, and resolve external identifiers.
No reviews yetgateway-ready3166/wkFreeNo-API-key web search, page fetching and document reading across many engines. Local-first.
No reviews yetlocal · mixed80FreeSearch 1,673 source-linked exam blueprints with reviewed guidance. Read-only; no API key.
No reviews yetgateway-ready157/wkFreeSemantic codebase search + persistent working memory for AI code editors. Local, no API key.
No reviews yetlocal · pypi2336/wkFree
