Pith
Reviews of arXiv papers for AI agents: verdicts, claims, flaws, compiled records, citation graphs.
| Endpoint | https://pith.science/mcp (streamable-http) |
|---|---|
| Registry version | 1.1.0 |
| Now | 24 tools · grade B (88) · pin ts_2dce4932cdca886655cee5b6b30273c7 · protocol 2025-06-18 |
| First / last listed | 2026-11-14 00:04 UTC / 2026-11-14 00:04 UTC |
| Grade over time | 2026-11-14: B (88), 24 tools |
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Tools: get_review search_papers latest_reviews analyze_paper_claims get_claims search_claims get_paper_falsifier get_falsifier get_signed_reviews get_reviewer_record get_record resolve_paper paper_packet citation_neighbors paper_bridge paper_connections check_claim verify_citation find_passages record_coverage my_citations my_reviews check_my_draft ask_field
get_review | Pith's review of one specific paper, in one call: the verdict,
confidence, novelty and correctness scores, one-line summary, weakest
assumption, and the paper's argument as short labeled statements
(premise, machinery, core claim, falsifier) already extracted, so the
paper's premises and logical structure can be stated without reading
the PDF. Use this for any question about a params: arxiv_id* |
search_papers | Search Pith-reviewed papers by title and abstract. Call this when the
user names a research topic, phenomenon, method, or paper title without
an identifier, or asks whether Pith has reviewed anything on a subject.
Each result carries the paper's verdict, summary, and review link. params: query*, limit |
latest_reviews | The papers Pith reviewed most recently, newest first. Call this when
the user asks what is new, notable, or recently reviewed in a field or
overall. days caps how far back to look (max 90). params: category, days, limit |
analyze_paper_claims | The structured argument of one specific paper: what it actually
asserts, the premises it assumes, the machinery connecting those
premises to the claim, and the falsifier, as short labeled statements
in argument order (premise, machinery, claim, falsifier). Use this for
requests about a paper's claims, premises, assumptions, reasoning,
logical dependencies, logical structure, ar params: arxiv_id* |
get_claims | Alias of analyze_paper_claims: the same ledger of what the paper
asserts, its premises, machinery, and falsifier, in argument order. params: arxiv_id* |
search_claims | Full-text search over every scientific claim Pith has extracted,
across all reviewed papers. Call this when the user asks who claims
something, whether a claim appears in the recent literature, or what
evidence bears on a statement. Returns each matching claim with its
paper, verdict, and review link. params: query*, limit |
get_paper_falsifier | The falsifier for one specific paper's core claim: the concrete
observation, experiment, or computation that would settle or disprove
it, plus how many people are watching for that result. Use this when the
user asks what would falsify the paper, prove it wrong, test its central
claim, settle the claim, or show that the conclusion fails. params: arxiv_id* |
get_falsifier | Alias of get_paper_falsifier: the same falsifier and watcher count. params: arxiv_id* |
get_signed_reviews | Published human signed reviews of one paper: reviewer identity, axis
deltas against the machine review, claim verdicts, defects, predictions,
and who paid. Call this when the user asks what human experts said about
a paper, on top of the machine review. params: arxiv_id* |
get_reviewer_record | A reviewer's published signed reviews and, when present, their
calibration record (Brier score, open predictions, positivity skew).
Call this when the user asks about a named Pith reviewer or how
trustworthy a reviewer's track record is. params: handle* |
get_record | The compiled record of one paper: the authors' own sentences, arranged
with typed labels. It carries the main claim in the authors' words, each
abstract sentence's role, results with the qualifications the authors
state beside them, the conditions of the study, measurements with where
they appear, the arXiv listing abstract compared with the manuscript's
abstract, resources inc params: arxiv_id* |
resolve_paper | Turn a pasted arXiv id, arXiv URL, DOI, or Pith Number into the
arXiv id the other tools key on. ``resolved`` is false when the input
did not become an arXiv id. params: reference* |
paper_packet | One paper's compiled record, small enough to hold beside others: the
main claim and contribution in the authors' words, each abstract
sentence with its role and probability, paper-level labels, and, for
full-text records, conditions, measurements, results and limitations,
with totals so a capped list is not mistaken for the whole paper. params: arxiv_id*, limit |
citation_neighbors | One hop from a paper: every reference entry with its resolved work
identity, the papers that cite it, and, where a record exists, the
citing sentences with their labeled intent. An edge means the paper
names the other work, not that the work supports the citing claim. params: arxiv_id*, direction, limit |
paper_bridge | Whether either paper cites the other, the resolved works both cite
(on or off arXiv), and the papers that cite both. params: a*, b*, limit |
paper_connections | What other arXiv papers do with this paper, and what it does with the
arXiv papers it cites: builds on, uses the method or tool, uses the data,
compares with, cites as support or background, or contests. Each group
counts distinct papers and quotes the citing authors' own sentences.
Labels come from each citing paper's LaTeX source typed by Pith's classifier and are
shown only params: arxiv_id*, quotes |
check_claim | Which arXiv papers support a scientific statement, which contradict
it, and which study it without deciding, each with the paper's own main
claim quoted and the classifier's probability. Call this before asserting a
scientific result, when a user asks whether something is established or
disputed, or when two sources disagree. Candidates are papers whose title
and abstract match params: statement*, limit |
verify_citation | Whether the cited paper's own sentences support what a sentence
attributes to it: supports, partly supports (a condition is missing),
contradicts, or not addressed, with the single best sentence from the
paper quoted. Call this before citing a paper for a specific claim, or to
check a citation in a draft or an answer. It reads the paper's abstract,
and its full text where Pith params: sentence*, cited* |
find_passages | Author sentences the classifier labeled with one role, across every stored
record, each with its probability and paper. Abstract-tier records
cover limitation, result and main_claim; full-text records add
condition, citation and measurement. params: role*, query, arxiv_id, limit |
record_coverage | Sources read and levels run for one paper's record, or the number of
stored records by tier. Call before treating an empty result as a
finding: an empty list means nothing in the examined scope matched. params: arxiv_id |
my_citations | For the papers claimed on the account behind your key: how many
papers cite each, whether they cite it as support, extension or
disagreement, and the citing sentence quoted. Call when the user asks who
is building on or disputing their work. Needs a personal key. params: none |
my_reviews | Pith's machine review verdict and the count of published signed human
reviews for each paper claimed on the account behind your key. Needs a
personal key. params: none |
check_my_draft | Resolve each reference in a draft, flag retracted works, and for arXiv
papers show how later papers cite them: as support, and whether any
contest them, with the contesting sentence quoted. Call before a
submission or when a user wants their reference list checked. Needs a
personal key; counts against a daily allowance. params: text* |
ask_field | Read the papers closest to a question and return, for each, whether its
own abstract sentences answer yes, no or not addressed, with the deciding
sentence quoted. Call when a user asks whether something holds across the
literature. Candidates are chosen by meaning, so a paper that answers in
different words can be missed. Needs a personal key; counts against a daily
allowance. params: question*, field |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.