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

Crypto, web, finance and app data tools

by bess-x402.onrender.comversion 1.13.0i★ –iRuns in the cloud
Registry namecom.onrender.bess-x402/data-tools

Install

Overview

Description from the maker (original English)

185 tools: company jobs, token/wallet/company/website reports, crypto, EVM, SEC, FRED, weather, DNS.

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: Accounting, finance & tax

Install

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

Before you install

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://bess-x402.onrender.com/mcp

Run this in your terminal

claude mcp add --transport http data-tools https://bess-x402.onrender.com/mcp

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "data-tools": {
      "url": "https://bess-x402.onrender.com/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": {
    "data-tools": {
      "type": "http",
      "url": "https://bess-x402.onrender.com/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://bess-x402.onrender.com/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

Tool names and descriptions exactly as the server reported them on Nov 6, 2026. The maker wrote them, not us; we show them as plain text.

  • read_web_page

    Read a public web page and return its main content as clean Markdown with title, author, publish date and language. Use when you need to read, quote or summarise an article or docs page from a URL.

  • eu_power_prices

    Day-ahead wholesale electricity prices for a European bidding zone (DE-LU, FR, NL, AT, BE, PL, ...) for up to 31 days in local time, with daily min/max/mean and the cheapest and priciest N-hour window. Use when scheduling EV charging, heat pumps or batteries, or asked what power

  • us_company_fundamentals

    Reported financials of a US-listed company from SEC 10-K/10-Q filings by ticker: revenue, profit, EPS, cash flow, free cash flow, assets, debt, equity and margins, annual or quarterly. Use when analysing or comparing US stocks and you need filed numbers, not estimates.

  • us_company_filings

    Latest SEC EDGAR filings of a US-listed company by ticker with links, optionally filtered by form (10-K, 10-Q, 8-K, 4 for insider trades, 13F-HR, S-1). Use for recent disclosures or insider filings.

  • evm_gas_fees

    Current gas fees on Ethereum, Base, Arbitrum, Optimism or Polygon: base fee and slow/standard/fast priority and max fee in gwei plus the cost of a plain transfer. Use before sending a transaction.

  • app_store_reviews

    User reviews of an iPhone/iPad app from the Apple App Store, by app id or store URL: rating, title, text, date and version, plus rating counts. Use to analyse app feedback.

  • website_contact_details

    Business contact details of a company website: generic company emails (info@, sales@), company phones, social pages, name and address, from its home, contact, about and imprint pages. Personal emails are left out. Use to find how to reach a business.

  • app_store_details

    Details of an iPhone/iPad app on the Apple App Store by id or store URL: developer, rating, price, genre, version and update date. Use for app or competitor research.

  • app_store_search

    Search the Apple App Store for a keyword and get up to 50 apps in rank order with full details. Use for ASO keyword research or finding competing apps.

  • bess_arbitrage_revenue

    Battery storage (BESS) day-ahead arbitrage revenue for a European bidding zone over up to a year of historical prices: annualised revenue per MW, cycles and payback. Use when sizing or screening a battery project or comparing zones. Dates are YYYY-MM-DD.

  • crypto_token_prices

    Current USD price and 24h change for up to 20 crypto tokens per call, by symbol (BTC, ETH, SOL, PEPE), CoinGecko id or chain:contract address (base:0x833589..., ethereum:0x...). Covers thousands of coins and on-chain tokens. Use for portfolio valuation, trading decisions or answe

  • evm_wallet_balance

    Balances of a wallet address or ENS name on Ethereum, Base, Arbitrum, Optimism and Polygon in one call: native ETH/POL, USDC, USDT, DAI and any ERC-20 contracts you add, each with USD value and a total. Use to check whether a wallet is funded, value a portfolio or confirm a payme

  • evm_transaction_status

    Status of an EVM transaction by hash: pending, success or failed, block, confirmations, timestamp, from/to, value, gas used, fee (plus L1 fee on Base/Optimism) and ERC-20 token transfers. Searches Ethereum, Base, Arbitrum, Optimism and Polygon if no chain is given. Use to confirm

  • ens_resolve

    Resolve an ENS name (vitalik.eth) or Basename (jesse.base.eth) to its address and profile records (avatar, url, twitter, github, email, description), or an address to its verified primary name. Use before sending funds to a name or to show who owns a wallet.

  • defi_yields

    Best DeFi yields right now: lending, staking and liquidity pools across all chains and protocols, with APY (base + rewards), 30-day mean APY, TVL, stablecoin flag and impermanent-loss risk. Filter by chain, protocol, token and minimum TVL; sort by APY or TVL. Use to find where to

  • crypto_news

    Latest crypto news from CoinDesk, Cointelegraph, Decrypt and The Block in one feed, newest first, with title, link, time, summary and tags; filter by keyword or coin (BTC, ETH, SOL, ETF, Base). Use to explain a price move, brief a trader or monitor a project.

  • dns_lookup

    DNS records of a domain: A, AAAA, MX, TXT, NS, CNAME, SOA and CAA, plus SPF and DNSSEC status, via Cloudflare/Google DNS-over-HTTPS. Use to check where a domain points, its mail servers, verification TXT records or why email or a website is failing.

  • domain_whois

    Registration data of a domain from RDAP, the official WHOIS successor: registrar, creation, update and expiry dates, status codes, nameservers, DNSSEC and registrant organisation/country where public. Says whether an unregistered name looks available. Use for domain research, due

  • url_metadata

    Link-preview metadata of a web page: title, description, Open Graph and Twitter card image, site name, author, publish date, language, canonical URL, favicon and RSS feeds. Use to build link previews, enrich bookmarks or classify a URL without reading the full page.

  • email_validate

    Check an email address before sending: syntax, whether the domain exists and has mail servers (MX), disposable/temporary provider, role address (info@, sales@), free provider and typo suggestion (gmial.com -> gmail.com), with a verdict. No mail is sent and the mailbox is not prob

  • qr_code

    Generate a QR code for any text, URL, wallet address or payment link as SVG or PNG, returned inline as SVG markup and a base64 data URI ready for HTML or chat. Choose size, border and error correction. Use when a user needs a scannable code for a link, Wi-Fi, contact or crypto pa

  • fx_rates

    Official ECB reference exchange rates for about 35 currencies (USD, EUR, GBP, JPY, CNY, INR, AED, SAR and more) for today or any date since 1999, from any base currency, with optional amount conversion. Use to convert prices, invoices or salaries between currencies.

  • us_treasury_yields

    US Treasury par yield curve from 1 month to 30 years (percent) for the latest day or any date since 1990, with 10y-2y and 10y-3m spreads, inversion flag and up to 60 days of history. Use for risk-free rates, discounting, macro analysis or answering where 10-year yields are.

  • public_holidays

    Public holidays of 150+ countries and their states/regions, or stock-market holidays (NYSE, ECB TARGET), for any year, and whether a given date is a holiday or business day with the next business day. Use for scheduling, delivery dates, payroll or market-open checks.

  • read_rss_feed

    Read any RSS or Atom feed (or a website that links one) and get clean JSON items: title, link, date, author, summary text, categories and image, plus feed title and language. Use to monitor blogs, news sites, podcasts or release notes without parsing XML.

  • wikipedia_summary

    Lead summary of the Wikipedia article that best matches a topic, in any language edition: title, short description, summary paragraph, image, coordinates, Wikidata id and link. Use for quick factual background on a person, place, company or concept.

  • polymarket_search

    Search open Polymarket prediction markets by keyword (election, bitcoin, fed, AI...) and get each event's markets with live outcome probabilities, best bid/ask, 24h and total volume, liquidity, end date and link. Use to answer what the market thinks will happen, or to find a mark

  • polymarket_top_markets

    Most active open Polymarket events right now, ranked by 24h volume, total volume or liquidity, optionally by tag (crypto, politics, sports, economy, tech, ai). Each event lists its markets with live probabilities. Use to see what traders are betting on today.

  • polymarket_market

    One Polymarket market by slug, id or URL: question, rules, outcome probabilities, best bid/ask, last trade, 1-day change, volume, liquidity and the order book (top bids and asks with sizes and spread) for each outcome. An event slug returns all its markets. Use before placing a t

  • kalshi_search

    Search Kalshi, the US-regulated prediction exchange, for open events (Fed decisions, CPI, elections, weather, crypto prices, sports) and get every market's yes bid/ask and last price as probabilities, volume and close time. Use for US economic and political event odds.

  • manifold_search

    Search Manifold Markets, the largest play-money prediction community, for open questions on AI, tech, science, politics and more, with probability, volume, bettor count and close date. Use for crowd forecasts on topics real-money markets don't cover.

  • prediction_markets_search

    One query across Polymarket, Kalshi and Manifold at once: matching open events and markets with current probabilities from each, so real-money and crowd odds can be compared side by side. Use to answer 'what are the odds that...' with every major prediction market.

  • crypto_fear_greed

    The Crypto Fear & Greed Index (0 extreme fear to 100 extreme greed) for today, with up to a year of daily history. Use as a market-sentiment signal for trading, newsletters or answering how the crypto market feels.

  • crypto_trending

    Coins trending on CoinGecko right now (most searched in 24h) with price, 24h change, market cap and volume, plus trending categories. Use to spot what retail is looking at or find narratives gaining attention.

  • crypto_coin_info

    Full profile of a coin by symbol or CoinGecko id: description, website, X/Twitter, GitHub, categories, contract addresses per chain, price, market cap, FDV, volume, 24h/7d/30d/1y change, all-time high/low and supply. Use for token research or due diligence.

  • crypto_top_coins

    Top cryptocurrencies by market cap (up to 250) with price, 1h/24h/7d change, volume, all-time high and supply, optionally within a CoinGecko category (layer-1, meme-token, artificial-intelligence, real-world-assets). Use for market overviews and screeners.

  • crypto_price_history

    Daily USD price history of any token (symbol, CoinGecko id or chain:address) for up to 365 days with high, low and % change, or its exact price on a past date. Use for charts, backtests, cost basis or 'what was ETH worth on...' questions.

  • defi_protocols_tvl

    DeFi protocols by total value locked (DefiLlama): look up one protocol (aave, uniswap, lido) or rank them by chain and category (Lending, Dexs, Liquid Staking, Bridge...) with TVL, 1d/7d change, market cap and chains. Use for DeFi research and protocol comparisons.

  • chains_tvl

    Blockchains ranked by DeFi total value locked with share of the market, gas token and chain id. Use to compare ecosystems (Ethereum, Solana, Base, Arbitrum...) or track where capital is moving.

  • stablecoins_supply

    Stablecoins ranked by circulating supply (USDT, USDC, USDe, DAI...) with 1-day, 7-day and 30-day supply change, peg price, mechanism and main chains, plus total USD stablecoin supply. Use to track liquidity flowing into crypto.

  • dex_volumes

    Decentralized exchange volume: total market 24h/7d and the top DEXs (Uniswap, Aerodrome, Raydium...) with 24h, 7d, 30d volume and daily change, for all chains or one chain. Use to compare DEX activity or chain usage.

  • protocol_fees

    Crypto protocols ranked by fees paid by users or revenue kept (Tether, Circle, Uniswap, Hyperliquid, chains...) over 24h, 7d and 30d, for all chains or one chain. Use for fundamental analysis and protocol valuation.

  • dex_pairs

    DEX trading pairs for a token symbol, name or contract address across all chains (DexScreener): price, liquidity, 24h volume, 1h/24h change, buys/sells, FDV, market cap and pair age, deepest liquidity first. Use to price new or small tokens and check if they can be traded.

  • perp_funding_rates

    Perpetual futures on Hyperliquid: hourly funding rate and APR, open interest, 24h volume, mark and oracle price, max leverage, for chosen coins or ranked by open interest, funding or volume. Use for funding arbitrage, leverage sentiment and basis trades.

  • exchange_ticker

    Live spot price of a crypto pair on Coinbase and Kraken: bid, ask, last, 24h open/high/low and volume, and the price gap between the two exchanges. Use for an exact executable price or a quick arbitrage check.

  • crypto_candles

    OHLCV candles for a crypto pair from Coinbase Exchange at 1m, 5m, 15m, 1h, 6h or 1d, up to 300, oldest first. Use for charting, technical indicators (RSI, moving averages) and backtests.

  • bitcoin_fees

    Bitcoin network fee rates in sat/vB for next block, 30 minutes, 1 hour and economy, plus mempool size, block height and the cost of a typical payment. Use right before sending BTC.

  • bitcoin_address

    Balance of a Bitcoin address (confirmed and pending), total received and sent, transaction count and its latest 10 transactions with net amount. Use to check a BTC payment or wallet.

  • bitcoin_transaction

    Status of a Bitcoin transaction: confirmed or pending, confirmations, block, time, fee and fee rate, RBF flag, inputs and outputs. Use to confirm a BTC payment or decide whether to bump a fee.

  • solana_balance

    SOL and SPL token balances of a Solana wallet (Token and Token-2022), with USD values and total where a price is known. Use to check a Solana wallet or confirm a payment arrived.

  • erc20_token_info

    Facts about an ERC-20 contract read from the chain (Ethereum, Base, Arbitrum, Optimism, Polygon): name, symbol, decimals, total supply, USD price and fully diluted value. Use to verify a token address before trading or integrating it.

  • npm_package

    An npm package's latest version, description, license, repository, dependencies, peer dependencies, TypeScript types, size, publish dates, deprecation and weekly downloads. Use to choose or audit a JavaScript dependency.

  • pypi_package

    A Python package on PyPI: latest version, summary, license, required Python, dependencies, release date, project links and daily/weekly/monthly downloads. Use to choose or audit a Python dependency.

  • rust_crate

    A Rust crate on crates.io: latest stable version, description, license, total and 90-day downloads, repository, docs, minimum Rust version and dates. Use to choose or audit a Rust dependency.

  • package_vulnerabilities

    Known security vulnerabilities for an open-source package from OSV (GitHub advisories, PyPA, RustSec, Go): id, CVE aliases, summary, severity, fixed versions, for all versions or one version. Ecosystems: npm, PyPI, Go, Maven, crates.io, RubyGems, NuGet, Packagist. Use before inst

  • cve_details

    Details of a CVE by id: description, CVSS score, severity and vector, CWE, whether it is in CISA's Known Exploited list, affected products (CPE) and references, from NVD with CVE.org fallback. Use for security triage and patch prioritisation.

  • hacker_news

    Hacker News stories by keyword (by relevance or newest) or the current front page: title, link, points, comment count, author, time and discussion URL. Use to see what developers are discussing about a topic.

  • arxiv_search

    Search arXiv preprints (AI, physics, math, CS, quant finance...) by keywords or field query: title, authors, abstract, categories, dates and PDF link, by relevance or newest. Use for literature review or tracking new research.

  • research_papers

    Search published research papers and articles across all publishers (Crossref): title, authors, journal, year, DOI, citation count and abstract, by relevance, date or citations. Use to find and cite sources.

  • book_search

    Find books by title, author or ISBN (Open Library): authors, first publication year, editions, pages, ISBNs, subjects, publishers, languages, rating and cover image. Use for book lookups, reading lists or metadata.

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

  • ! Caution

    Maker matches the repo

    The registry lists no source repo, so we cannot match the publisher (bess-x402.onrender.com) to the code

  • … 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

  • ✓ Pass

    Endpoint responds

    Responded in 188 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 60 tool descriptions and found no hidden instructions to the AI

Compared with others in Accounting, finance & taxi

  • More stars than 0% of the other 1720 servers in this category
  • Published to the registry more recently than 93% of the other 1720 servers in this category
  • Basic checks equal to or better than 43% of the other 1720 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 Crypto, web, finance and app data tools safe?

It passed 2 of 3 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 (1.13.0) reached the registry 2 days 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: Finance Toolkit, SolidInvoice, Korea Tax Calculator

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README from the maker

No README found in the repo

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