MCP server

Pith Official

science.pith/pith

Checked 25 Oct 2026, 20:29 UTC · Connected to it and listed its tools

Reviews of arXiv papers for AI agents: verdicts, claims, flaws, compiled records, citation graphs.

Website

At a glance

Type

MCP server

Publisher

pith.science (verified by the MCP Registry)

Status

Working at last check

Tools

24

Token cost

About 4,954 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

25 Oct 2026, 20:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http pith https://pith.science/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.pith]
url = "https://pith.science/mcp"

Gemini CLI

{"mcpServers":{"pith":{"httpUrl":"https://pith.science/mcp"}}}

Cursor

{"mcpServers":{"pith":{"url":"https://pith.science/mcp"}}}

VS Code

{"servers":{"pith":{"type":"http","url":"https://pith.science/mcp"}}}

Antigravity

agy mcp add pith https://pith.science/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"pith","server_url":"https://pith.science/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"pith","server_url":"https://pith.science/mcp"}

Tools

• analyze_paper_claims ~237 tokens
  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
• ask_field ~238 tokens
  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 answer
• check_claim ~355 tokens
  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
• check_my_draft ~188 tokens
  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 k
• citation_neighbors ~252 tokens
  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.
• find_passages ~254 tokens
  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.
• get_claims ~128 tokens
  Alias of analyze_paper_claims: the same ledger of what the paper asserts, its premises, machinery, and falsifier, in argument order.
• get_falsifier ~110 tokens
  Alias of get_paper_falsifier: the same falsifier and watcher count.
• get_paper_falsifier ~197 tokens
  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 clai
• get_record ~324 tokens
  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
• get_review ~254 tokens
  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
• get_reviewer_record ~130 tokens
  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.
• get_signed_reviews ~170 tokens
  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.
• latest_reviews ~205 tokens
  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).
• my_citations ~114 tokens
  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.
• my_reviews ~81 tokens
  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.
• paper_bridge ~205 tokens
  Whether either paper cites the other, the resolved works both cite (on or off arXiv), and the papers that cite both.
• paper_connections ~336 tokens
  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.
• paper_packet ~227 tokens
  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
• record_coverage ~133 tokens
  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.
• resolve_paper ~141 tokens
  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.
• search_claims ~181 tokens
  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
• search_papers ~175 tokens
  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.
• verify_citation ~319 tokens
  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

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