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PopNx MCPMCP servers for people who use AI · explained in plain words

PapersFlow

by papersflow-aiversion 1.0.0i★ –iRuns in the cloud
Registry nameio.github.papersflow-ai/papersflow

Install

Overview

Description from the maker (original English)

Academic research MCP server for paper search, citation checks, graphs, and deep research.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs in the cloud
  • Transport: Streamable HTTP
  • Category: Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • The registry lists no key to fill in.

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://doxa.papersflow.ai/mcp

Run this in your terminal

claude mcp add --transport http papersflow https://doxa.papersflow.ai/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "papersflow": {
      "url": "https://doxa.papersflow.ai/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "papersflow": {
      "type": "http",
      "url": "https://doxa.papersflow.ai/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://doxa.papersflow.ai/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account papersflow-ai, which owns the repo

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • … Not checked yet

    Endpoint responds

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    Sign-in with OAuth

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    No hidden instructions in tool descriptions

    Not checked yet; we read the tool list when we check the endpoint

Compared with others in Search & AI memoryi

  • More stars than 0% of the other 7240 servers in this category
  • Published to the registry more recently than 5% of the other 7240 servers in this category
  • Basic checks equal to or better than 100% of the other 7240 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is PapersFlow safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 8 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated 3 days ago
Install

Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 20 days ago
Install

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated 44 days ago
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

papersflow-mcp

papersflow-mcp is PapersFlow's production / GA hosted MCP server for literature search, citation verification, related-paper discovery, and authenticated research workflows across Claude, Codex, Gemini, ChatGPT-style MCP apps, and other MCP clients.

Production Endpoint

  • MCP URL: https://doxa.papersflow.ai/mcp
  • OAuth protected resource metadata: https://doxa.papersflow.ai/.well-known/oauth-protected-resource
  • OAuth authorization server metadata: https://doxa.papersflow.ai/.well-known/oauth-authorization-server
  • Dynamic client registration: https://doxa.papersflow.ai/oauth/register

Public Tool Surface

  • search
  • fetch
  • verify_citation
  • search_literature
  • find_related_papers
  • get_citation_graph
  • get_paper_neighbors
  • expand_citation_graph

Authenticated and paid tools are available through PapersFlow account access and plan entitlements.

Documentation

  • Setup tutorial
  • MCP release guide

Gemini CLI Extension

This repository also includes a root gemini-extension.json so Gemini CLI can install it as an extension wrapper around the hosted MCP server.

Official Gemini CLI flow supported by the docs:

gemini extensions install https://github.com/papersflow-ai/papersflow-mcp

The extension manifest lives at the repository root and points Gemini CLI at the hosted MCP endpoint using Gemini's remote MCP config shape.

If Gemini shows:

papersflow-mcp (from papersflow-mcp) - Disconnected (OAuth not authenticated)

that is expected until OAuth is completed inside Gemini:

/mcp auth papersflow-mcp

/mcp refresh /mcp list

gemini extensions install installs the extension package. It does not complete OAuth during install. The browser opens when Gemini starts the remote MCP auth flow, typically via /mcp auth papersflow-mcp or the first auth-required connection attempt.

Gemini CLI references:

  • https://geminicli.com/docs/extensions/releasing/
  • https://geminicli.com/docs/extensions/reference/
  • https://geminicli.com/docs/extensions/writing-extensions/

Client Setup

Cline (VS Code)

Add PapersFlow as a remote MCP server in your Cline MCP settings:

{

"mcpServers": { "papersflow": { "url": "https://doxa.papersflow.ai/mcp", "transportType": "streamable-http" } } }

On first use, Cline will open a browser window for OAuth sign-in to your PapersFlow account. Public tools (literature search, citations, paper discovery) work immediately; authenticated tools require a PapersFlow plan.

Other Clients

Supported client paths today:

  • Codex
  • Claude Code
  • Gemini CLI
  • ChatGPT-style hosted MCP apps

The setup guide includes both command-style and config-style snippets where supported.

Support And Policies

  • Website: https://papersflow.ai
  • Privacy: https://papersflow.ai/privacy
  • Terms: https://papersflow.ai/terms
  • Support: https://papersflow.ai/contact
  • Support email: developer@papersflow.ai

Notes

  • This repository is the public documentation and submission surface for the hosted MCP service.
  • The production service is operated by PapersFlow and backed by the main PapersFlow platform.
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