xpay Academic Research

io.github.xpayshPublished by GitHub account xpayshv1.0.0Updated Oct 24, 2026

30+ academic research tools. Semantic Scholar, arXiv, PubMed, bioRxiv, CrossRef, IACR.

VerifiedStreamable HTTPWeb executableWeb Search & ScrapingKnowledge & Memory

Overview

AI-generated overview

A paid remote MCP endpoint giving an assistant about 30 academic research tools across Semantic Scholar, arXiv, PubMed, bioRxiv, CrossRef and IACR.

What you can do
Search and retrieve scholarly literature across Semantic Scholar, arXiv, PubMed, bioRxiv, CrossRef and IACR through roughly 30 research tools, which the assistant discovers automatically on connecting. The endpoint is a focused collection of a larger paid tool hub, so the same key also unlocks other collections such as content research or web scraping.
When to use it
Useful when an assistant needs to look up papers, citations or preprints across several scholarly sources without setting up separate provider accounts or API keys.
Requirements
A remote MCP client (Claude Desktop, Cursor, Windsurf, Claude Code CLI, Cline and similar). An API key from the provider's sign-up site, passed in the endpoint URL, plus prepaid USDC credits in the provider wallet, funded via Coinbase.
Before you install
Every tool call costs $0.01 in USDC, deducted from a prepaid wallet balance, so usage spends real money. The API key is placed in the connection URL, so treat that URL as a secret. Payments are signed in USDC on the Base blockchain. Queries and results pass through a third-party paid gateway rather than the providers directly.

Installation

In SourceWeft

  1. Open xpay Academic Research in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Other MCP clients

Follow the launch instructions in the repository.

README

xpay MCP Server

980+ AI tools available as MCP servers. Pay $0.01/call in USDC via the x402 protocol. One API key, 30+ providers — no individual provider accounts or subscriptions needed.

Quick Start

1. Get your API key

Sign up at app.xpay.sh and create an API key. Add credits to your wallet (USDC on Base).

2. Add to your MCP client

Claude Desktop / Cursor / Windsurf — add to your MCP config:

json
{  "mcpServers": {    "xpay": {      "url": "https://mcp.xpay.sh/mcp?key=YOUR_API_KEY"    }  }}

Claude Code CLI:

bash
claude mcp add --transport http "xpay" "https://mcp.xpay.sh/mcp?key=YOUR_API_KEY"

Replace YOUR_API_KEY with your key from step 1.

3. Use tools

Your AI assistant will automatically discover all available tools. Each tool call costs $0.01 USDC, deducted from your wallet balance.

Collection Servers

Instead of connecting to all 980+ tools, you can connect to a focused collection:

CollectionEndpointToolsProviders
All Toolshttps://mcp.xpay.sh/mcp?key=YOUR_API_KEY980+All 30+
Lead Generationhttps://lead-gen.mcp.xpay.sh/mcp?key=YOUR_API_KEY~50Hunter, Apollo, Tomba, Sixtyfour, Fiber, Exa, Nyne
Competitive Intelhttps://compete.mcp.xpay.sh/mcp?key=YOUR_API_KEY~40Brand.dev, Coresignal, Keywords Everywhere, Exa, Firecrawl, Shofo
Content Researchhttps://content.mcp.xpay.sh/mcp?key=YOUR_API_KEY~40Perplexity, Tavily, Semantic Scholar, FLUX, Ideogram, Recraft
Web Scrapinghttps://scraping.mcp.xpay.sh/mcp?key=YOUR_API_KEY~35Firecrawl, Bright Data, Jina, Olostep, ScrapeGraph, Notte
Developer Toolshttps://devtools.mcp.xpay.sh/mcp?key=YOUR_API_KEY~30Context7, Code Runner, Python Execute, NPM Sentinel, PlantUML
Financehttps://finance.mcp.xpay.sh/mcp?key=YOUR_API_KEY253Financial Modeling Prep, Alpha Vantage, AkShare, Polymarket
Media Studiohttps://media.mcp.xpay.sh/mcp?key=YOUR_API_KEY~25FLUX, Ideogram, Recraft, Stability AI, MiniMax, Kokoro
Social Mediahttps://social.mcp.xpay.sh/mcp?key=YOUR_API_KEY96ScapeCreators, Shofo, YouTube
Academic Researchhttps://research.mcp.xpay.sh/mcp?key=YOUR_API_KEY~30Semantic Scholar, Google Scholar, PubMed, arXiv
Marketinghttps://marketing.mcp.xpay.sh/mcp?key=YOUR_API_KEY~30Keywords Everywhere, Brand.dev, Exa, Tavily, Ideogram

How It Works

  1. Get a key — Sign up at app.xpay.sh and add USDC credits
  2. Connect — Add the endpoint URL (with your key) to any MCP client
  3. Call tools — Your AI assistant discovers and calls tools naturally
  4. Auto-deduct — Each call costs $0.01 USDC, deducted from your wallet balance

No individual provider API keys. No separate accounts. One key for 30+ providers.

Requirements

  • API key from app.xpay.sh
  • USDC credits in your xpay wallet (add via Coinbase)
  • MCP client — Claude Desktop, Cursor, Windsurf, Claude Code CLI, Cline, etc.

How x402 Works

x402 is an open protocol for machine-to-machine payments using HTTP 402 Payment Required. When a tool call requires payment:

  1. Server responds with 402 Payment Required + a payment invoice
  2. Client signs a USDC payment on Base blockchain
  3. Server verifies payment and executes the tool
  4. Settlement is instant, non-custodial, and peer-to-peer

Browse Tools

Related

License

MIT

Source: README.md at commit 5e6d218

Tools

0
SourceWeft has not read this server's tools yet.

Version history

1
  1. v1.0.0LatestSep 16, 2026

Score

85% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts