Pendar

Walk the citation graph around a paper and assess its impact: who cited it, what it cited, and how those papers connect to each other. Returns whether citations are accelerating or declining (from the exact per-year history), which research fields the citing work comes from and which fields are taking a growing share of it, which kinds of institution are citing (universities, industry, hospitals, government labs), the work types and funders of the citing papers, and the authors of citing papers. The breakdowns count every citing paper, not a sample. Use this to judge whether a paper is still influential, which fields picked it up, and where it is being used now. Takes a few seconds.

graph_hopper

Check a whole reference list against the published record in one call: for each reference, whether the paper exists, whether it is retracted, whether the citation's details match, or whether it cannot be confirmed. Accepts up to 25 references as written — full citations, titles, DOIs, or journal-style abbreviated references with no title. Returns a verdict per reference in the order given and a tally. A reference that cannot be confirmed is reported as not found, never replaced with a similar paper. It checks references; it does not reformat them. Costs 1 credit per started block of 5 references checked.

Find the journals and other venues that publish a research topic, ranked by how many papers on it each one carries, with whether that is growing. Each venue comes with facts: type (journal, repository, conference), publisher, ISSN, whether it is open access and listed in the open-access journal directory, its listed publication fee in US dollars, and citation statistics. Use it to see where work on a subject is published or to shortlist venues by open access or fees. It does not rank venues by prestige or predict acceptance. Pass a short noun phrase, not a question.

Summarise a researcher's published work from the public publication record: the topics they publish on and which are growing, where they publish, papers and citations per year, affiliations as they appear on papers, and frequent co-authors. Accepts a name (add the institution when known), an ORCID, or an author id. When a name matches several people, returns candidates instead of guessing. Returns no contact details and does not rank or judge researchers. Takes a few seconds.

Survey the published literature on a topic and return the shape of the field alongside the most relevant papers. Gives the exact number of papers that exist, how many were published each year and whether output is growing or fading, which sub-areas the work divides into and which of them are growing fastest, which disciplines and countries it comes from, the institutions, sectors, and funders behind it, the most prolific authors, the journals or repositories it appears in, how much is peer-reviewed versus preprints or theses, how much is uncited, and how many papers are retracted. Every count is exact over the whole corpus rather than estimated from a sample. Use it to size and characterise a research area, to judge whether a field is active before entering it, or to find papers on a subject. Pass a short noun phrase, not a question. Takes a few seconds.

Verify that a cited paper actually exists and return its canonical metadata, DOI, and retraction status. Accepts a DOI, a Pendar paper ID, a title, a full citation string, or a journal-style abbreviated reference with no title (journal, volume, page, year). When the input is too ambiguous to resolve, returns candidates instead of guessing. Also reports the paper's citation percentile among papers from the same year, whether the record is an erratum or notice, and facts about its venue. Takes about a second.