Yfinance MCP vs Polymarket Paper Trader
A side-by-side look at the Yfinance MCP and Polymarket Paper Trader MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Yfinance MCP for finance & fintech work as a local process; choose Polymarket Paper Trader for finance & fintech as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Yfinance MCP when
- You need dedicated capabilities in the Finance & Fintech domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You want tools like
yfinance_get_ticker_info, yfinance_get_analyst_price_targets, yfinance_get_analyst_estimates.
Choose Polymarket Paper Trader when
- You need dedicated capabilities in the Finance & Fintech domain.
- You prefer a local stdio subprocess transport.
- You want tools like
init_account, get_balance, reset_account.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Finance & Fintech | Finance & Fintech |
| Quality signal | 64/100 · Good | 65/100 · Great |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | No auth required | Not declared |
| Pricing | Free | Not declared |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 203 | 501 |
| Directory activity | 2 views 0 installs 0 upvotes | 4 views 0 installs 0 upvotes |
| Tools | 15 | 30 |
| Full listing | View Yfinance MCP | View Polymarket Paper Trader |
Tools & capabilities
Yfinance MCP tools 15
yfinance_get_ticker_infoRetrieve comprehensive stock data including company information, financials, trading metrics and governance. Returns JSON object with fields including: - Company: symbol, longName, sector, industry, longBusinessSummary, website, city, country - Price: currentPrice, previousClose, open, dayHigh, dayLow, fiftyTwoWeekHigh, fiftyTwoWeekLow - Valuation: marketCap, enterpriseValue, trailingPE, forwardPE, priceToBook, pegRatio - Trading: volume, averageVolume, averageVolume10days, bid, ask, bidSize, askSize - Dividends: dividendRate, dividendYield, exDividendDate, payoutRatio - Financials: totalRevenue, revenueGrowth, earningsGrowth, profitMargins, operatingMargins - Performance: beta, fiftyDayAverage, twoHundredDayAverage, trailingEps, forwardEps Note: Available fields vary by security type. Timestamps are converted to readable dates.yfinance_get_analyst_price_targetsFetch the current price and analyst consensus price targets for a stock. Returns a JSON object with the fields supplied by Yahoo Finance: - current: Current market price - low: Lowest analyst price target - high: Highest analyst price target - mean: Mean analyst price target - median: Median analyst price target Analyst coverage and available fields vary by symbol.yfinance_get_analyst_estimatesFetch consensus estimates, EPS/revenue trends, revisions, recommendations, and earnings history.yfinance_get_fund_dataFetch ETF or mutual-fund composition, holdings, exposures, ratings, and operating details.yfinance_get_upgrades_downgradesFetch analyst upgrades, downgrades, initiations, and price target changes. Returns analyst actions newest first. Fields supplied by Yahoo Finance can include: - GradeDate: Date and time of the analyst action - Firm: Analyst firm name - ToGrade and FromGrade: New and previous ratings - Action: Rating action, such as upgrade, downgrade, initiation, or reiteration - priceTargetAction: Price target action, such as Raises, Lowers, or Maintains - currentPriceTarget and priorPriceTarget: New and previous price targets Available fields vary by symbol and analyst action.yfinance_get_ticker_newsFetch recent news articles and press releases for a specific stock. Returns JSON array where each news item has: - id: Unique article identifier - content: Object containing: - title: Article headline - summary: Brief article summary - pubDate: Publication date (ISO 8601 format) - provider: Object with displayName (e.g., "Yahoo Finance") and url - canonicalUrl: Object with article url, site, region, lang - thumbnail: Object with image URLs and resolutions - contentType: Type of content (e.g., "STORY", "VIDEO") Use this to track company announcements, market sentiment, and breaking news.yfinance_searchSearch Yahoo Finance for stocks, ETFs, and news articles. Returns JSON with search results based on search_type: - 'quotes': Array of securities with: - symbol: Ticker symbol - shortname/longname: Company name - quoteType: Security type (EQUITY, ETF, MUTUALFUND, etc.) - exchange: Exchange code - sector: Business sector - industry: Industry classification - score: Search relevance score - 'news': Array of articles with: - uuid: Article identifier - title: Headline - publisher: News source - link: Article URL - providerPublishTime: Unix timestamp - relatedTickers: Array of related symbols - thumbnail: Image URLs - 'all': Object with both 'quotes' and 'news' arrays Use this to find ticker symbols, discover related securities, or search financial news.yfinance_screenRun a Yahoo Finance screener query. Supports predefined Yahoo screener keys and custom equity, mutual-fund, or ETF query trees.yfinance_screen_gappersRun a custom equity screener tuned for opening-session stock gappers.yfinance_get_topGet top-ranked financial entities within a sector. This unified tool provides access to various rankings: - ETFs and mutual funds focused on the sector - Largest companies by market capitalization - Fastest-growing companies by revenue/earnings - Best-performing stocks by price appreciation Returns JSON data with relevant metrics for each entity type.yfinance_get_price_historyFetch historical price data and optionally generate technical analysis charts. When chart_type is None, returns Markdown table with columns: - Date: Trading date (index) - Open: Opening price - High: Highest price - Low: Lowest price - Close: Closing price - Volume: Trading volume - Dividends: Dividend payments (if any) - Stock Splits: Split events (if any) When chart_type is specified, returns a chart image: - 'price_volume': Candlestick chart with volume bars - 'vwap': Price with Volume Weighted Average Price overlay - 'volume_profile': Volume distribution by price level Set prepost=True to include pre-market and post-market data when available. Note: Not all period/interval combinations are valid. Minute intervals (1m, 5m, etc.) only work with short periods (1d, 5d).yfinance_get_financialsFetch financial statements (income statement, balance sheet, and cash flow) with historical data. Returns JSON with income statement, balance sheet, and cash flow data across reporting periods. Use the data to analyze trends, calculate ratios, or compare periods.- +3 more on the listing page
Polymarket Paper Trader tools 30
init_accountInitialize a paper trading account with starting balance (USD). Creates a new account or resets an existing one.get_balanceGet current account balance (cash, reserved/available cash), positions value, and P&L.reset_accountReset account — deletes all trades, positions, and balance.search_marketsSearch Polymarket for markets matching a query string.list_marketsList active Polymarket markets sorted by volume or liquidity.get_marketGet detailed info for a specific market by slug or condition ID.get_order_bookGet the live order book for a market outcome (asks and bids).get_tagsGet all market categories/tags for filtering.get_markets_by_tagList markets in a specific category/tag.get_eventGet event details — a group of related markets.watch_pricesWatch live midpoint prices for one or more markets. slugs: comma-separated market slugs or condition IDs outcomes: comma-separated outcomes (default: "yes")buyBuy shares in a Polymarket outcome. Spends amount_usd to buy at best available prices. order_type: "fok" (fill-or-kill) or "fak" (fill-and-kill, allows partial).- +18 more on the listing page
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Yfinance MCP
{
"mcpServers": {
"narumiruna-yfinance-mcp": {
"command": "uvx",
"args": [
"yfmcp@latest"
]
}
}
}
Polymarket Paper Trader
{
"mcpServers": {
"polymarket-paper-trader": {
"command": "uvx",
"args": [
"--from",
"polymarket-paper-trader",
"pm-trader-mcp"
]
}
}
}
Frequently asked questions
Yfinance MCP is categorized under Finance & Fintech and uses a local stdio subprocess. Polymarket Paper Trader belongs to Finance & Fintech and uses a local stdio subprocess. Pick Yfinance MCP for finance & fintech work and Polymarket Paper Trader for finance & fintech.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Yfinance MCP is listed as free. Auth: no auth required. Polymarket Paper Trader has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add narumiruna-yfinance-mcp and polymarket-paper-trader as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Yfinance MCP has a quality signal of 64/100 (Good) with 2 views, 0 installs and 203 GitHub stars. Polymarket Paper Trader has 65/100 (Great) with 4 views, 0 installs and 501 GitHub stars.