Search arXiv papers, download full text, semantic search, citation graphs, and alerts via MCP.
Nothing to run from here
Pith is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
24
tools declared
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trust score
remote
at its publisher
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calls last 7d
What it does
Reviews of arXiv papers for AI agents: verdicts, claims, flaws, compiled records, citation graphs.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --transport http pith-mcp https://pith.science/mcp
# 2 — ask your agent for something these tools do
# get_review, search_papers, latest_reviews and 21 more
Pith costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Publishernot claimed
PIAll 1 server
pith1 server
1 category
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Installation
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. Nothing here runs on your machine and nothing runs on ours: this server answers at its publisher’s own address, and what you install is the connection straight to it.
Claude Codedeclared by this listing
This is a public server: it answers at its publisher’s own address and this marketplace is not in the path. Claude Code registers it in one command; --scope user makes it available in every project. The transport below is http, as the publisher's own manifest declares it.
claude mcp add --scope user --transport http pith-mcp https://pith.science/mcpReconnect, or start a new session, and the tools appear in the model’s tool list.
Free on mcprush, and it answers at its publisher’s own address: this marketplace is not in the path, so there is no key of ours to hold and no card to add.
What it writes
One config entry pointing straight at the publisher’s own address — this marketplace is not in the path, and nothing from this listing executes on your machine.
What you approve
24 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
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
| Parameter | Type | Required | Notes |
|---|---|---|---|
| arxiv_id | string | yes | Any form the user gave: bare arXiv id (2401.00001), arXiv abs/pdf URL, DOI or doi.org URL, or Pith Number. |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| query | string | yes | Topic, phenomenon, method, or paper title in plain words. |
| limit | integer | no | — |
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).
| Parameter | Type | Required | Notes |
|---|---|---|---|
| category | no | Field to filter by: an arXiv archive ('cond-mat'), a full category ('cond-mat.str-el'), or a plain field name like 'condensed matter' or 'machine learning'; omit for all fields. | |
| days | integer | no | — |
| limit | integer | no | — |
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
| Parameter | Type | Required | Notes |
|---|---|---|---|
| arxiv_id | string | yes | Any form the user gave: bare arXiv id (2401.00001), arXiv abs/pdf URL, DOI or doi.org URL, or Pith Number. |
Alias of analyze_paper_claims: the same ledger of what the paper asserts, its premises, machinery, and falsifier, in argument order.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| arxiv_id | string | yes | Any form the user gave: bare arXiv id (2401.00001), arXiv abs/pdf URL, DOI or doi.org URL, or Pith Number. |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| query | string | yes | The claim or statement to look for, in plain words. |
| limit | integer | no | — |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| arxiv_id | string | yes | Any form the user gave: bare arXiv id (2401.00001), arXiv abs/pdf URL, DOI or doi.org URL, or Pith Number. |
Alias of get_paper_falsifier: the same falsifier and watcher count.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| arxiv_id | string | yes | Any form the user gave: bare arXiv id (2401.00001), arXiv abs/pdf URL, DOI or doi.org URL, or Pith Number. |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| arxiv_id | string | yes | Any form the user gave: bare arXiv id (2401.00001), arXiv abs/pdf URL, DOI or doi.org URL, or Pith Number. |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| handle | string | yes | — |
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
| Parameter | Type | Required | Notes |
|---|---|---|---|
| arxiv_id | string | yes | Any form the user gave: bare arXiv id (2401.00001), arXiv abs/pdf URL, DOI or doi.org URL, or Pith Number. |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| reference | string | yes | Any form the user gave: bare arXiv id (2401.00001), arXiv abs/pdf URL, DOI or doi.org URL, or Pith Number. |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| arxiv_id | string | yes | Any form the user gave: bare arXiv id (2401.00001), arXiv abs/pdf URL, DOI or doi.org URL, or Pith Number. |
| limit | integer | no | Items per list. 1 to 20. |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| arxiv_id | string | yes | Any form the user gave: bare arXiv id (2401.00001), arXiv abs/pdf URL, DOI or doi.org URL, or Pith Number. |
| direction | string | no | out: works this paper cites. in: papers that cite it. both. |
| limit | integer | no | Graph rows per side. 1 to 40. |
Whether either paper cites the other, the resolved works both cite (on or off arXiv), and the papers that cite both.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| a | string | yes | Any form the user gave: bare arXiv id (2401.00001), arXiv abs/pdf URL, DOI or doi.org URL, or Pith Number. |
| b | string | yes | Any form the user gave: bare arXiv id (2401.00001), arXiv abs/pdf URL, DOI or doi.org URL, or Pith Number. |
| limit | integer | no | Shared graph neighbors per side. 1 to 40. |
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
| Parameter | Type | Required | Notes |
|---|---|---|---|
| arxiv_id | string | yes | Any form the user gave: bare arXiv id (2401.00001), arXiv abs/pdf URL, DOI or doi.org URL, or Pith Number. |
| quotes | integer | no | Quoted sentences per group. 1 to 20. |
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
| Parameter | Type | Required | Notes |
|---|---|---|---|
| statement | string | yes | One scientific statement in plain words, for example a result a user asserts or that you are about to assert. |
| limit | integer | no | Candidate papers to judge. 4 to 24. |
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
| Parameter | Type | Required | Notes |
|---|---|---|---|
| sentence | string | yes | The sentence that cites the paper, as written in a draft, an answer or a paper. |
| cited | string | yes | Any form the user gave: bare arXiv id (2401.00001), arXiv abs/pdf URL, DOI or doi.org URL, or Pith Number. |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| role | string | yes | limitation, condition, result, main_claim, citation, or measurement. |
| query | string | no | Words to match in the author's sentence. Empty returns the role. |
| arxiv_id | string | no | One paper, or empty for every stored record. |
| limit | integer | no | 1 to 50. |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| arxiv_id | string | no | One paper, or empty for the whole record store. |
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.
No parameter schema on file.
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.
No parameter schema on file.
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| text | string | yes | The draft's reference list: BibTeX, a LaTeX bibliography or plain reference lines. |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| question | string | yes | A yes-or-no question the literature could answer. |
| field | string | no | Optional arXiv category such as gr-qc or math.CO; empty for all fields. |
Free
$0 forever
- Every tool — any call limit is its publisher’s, not ours
- No card, and mcprush charges nothing for it
- Runs at its publisher’s own address — this marketplace is not in the path
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install Pith or to call it, at any volume.
Call allowance · this installenforced at the gateway
Monthly allowance, in calls
—
—
Alert at 80% · then the tool returns a normal MCP error
Used this month: —
—Grade not published
No rule-by-rule report on file for this release
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
This listing is an address its publisher runs, and you connect to it directly — this marketplace is not in the path. The scanner reads packages and public source, and an address is neither. So there is no grade — not a withheld one, an unmeasured one.
Release history
This is an address its publisher runs: which release it serves is theirs to choose, so there is nothing here to pin. The history below is for reading; the current release on file is 1.1.0.
1.1.0
undated
latestNo release note was published with this version.
—
no reviews yet
Who can review
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Sign in to write one
Any signed-in account that does not publish Pith can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
No reviews yet
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.