MCP servers › io.github.lkcair › yfinance-ai

MCP server · registry snapshot 2026-10-23 · last tested 2026-10-23

io.github.lkcair/yfinance-ai

Yahoo Finance in 68 tools: stocks, crypto, forex, commodities, funds, options, analysts, calendars. — the publisher's description

7 of 8 record checks metRead-only · tools listed 2026-10-23Topic: finance-and-payments · AI-classifiedversion 5.0.5PythonMITstandard input/output68 tools

Summary

io.github.lkcair/yfinance-ai is a local MCP server listed in the official MCP registry at version 5.0.5. On 2026-10-23 ProtocolProbe started its published package in an isolated sandbox in read-only mode and read its inventory: 68 tools, 0 resources and 0 prompts.

Record checks

7 of 8 record checks met · 1 does not apply

met: Registry entry is active and says how to run it
met: Source repository link opens
met: Repository is not archived
met: Code pushed to the repository in the 90 days before our check
not met: Repository publishes a security policy (SECURITY.md)
met: Package names its licence with a standard (SPDX) identifier
met: The version the registry lists can be installed and is not withdrawn
not applicable: npm package carries build provenance (attestation)
met: No known critical or high advisory in the package or its dependencies

#14,745 of 15,112 packages by monthly downloads, tied with 367 others
Not ranked by stars: 0 stars (ranked from 10)

From public records, not a safety rating. Each check with its reason · Is it safe to install?

Key facts

Runs: local package
Transport: standard input/output
Package: PyPI · listed version current
License: MIT
Dependencies: no known high or critical advisories
Repository: public
Tools: 68
Described as changing data: 0 of 68 toolsAI-classified
Mainly works on: nothing outside itself: it only answers questionsAI-classified
Topic: finance-and-paymentsAI-classified
Last tested: 2026-10-23

Add to your client

How fresh this is

Live-tested

yes, a real session (not a text-only review)

Last tested

2026-10-23

Mode

read-only (no tool calls)

Latest version

5.0.5, published 2026-10-21 (registry, as of the 2026-10-23 snapshot)

First listed version

2026-10-21 (earliest version still in the registry; older removed versions would be earlier)

Version history

6 versions listed, all on 2026-10-21; 6 in the 90 days before the 2026-10-23 snapshot.

Most recent 6 versions

5.0.5 · 2026-10-21
5.0.4 · 2026-10-21
5.0.3 · 2026-10-21
5.0.2 · 2026-10-21
5.0.1 · 2026-10-21
5.0.0 · 2026-10-21

(versions still listed in the registry only)

Registry data

snapshot 2026-10-23

Package and repository

checked 2026-10-23

Engine

mcp-runtime-engine@0.1.0 · sdk@1.32.0

Changes since the last refresh

New in the registry: not in the list of 2026-10-04, listed on 2026-10-23 with version 5.0.5 (published 2026-10-21).

Source: the official MCP Registry list on 2026-10-04 and on 2026-10-23.

What it is

What does this server offer?

Observed inventory

68tools

0resources

0prompts

What it mainly works on, as our AI model read its tool descriptions: nothing outside itself: it only answers questions.

None of its 68 tools are described as changing anything.

compare_stockson 9 other serversreads or searches
“Compare key metrics across multiple stocks.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickersstringrequired“Comma-separated list of ticker symbols (e.g., 'AAPL,MSFT,GOOGL')”
download_multiple_tickersreads or searches
“Download historical data for multiple tickers at once (bulk operation).”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
3 inputs, 1 required
- tickersstringrequired“Space or comma-separated ticker symbols (e.g., 'AAPL MSFT GOOGL')”
- periodstring“Time period (default: 1mo)”
- intervalstring“Data interval (default: 1d)”
get_analyst_estimateson 2 other serversreads or searches
“Get analyst estimates for earnings, revenue, and EPS.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_analyst_price_targetsreads or searches
“Get detailed analyst price targets for a stock.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_analyst_recommendationson 1 other serverreads or searches
“Get analyst recommendations and ratings.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_api_statuson 11 other serversreads or searches
“Get API status and usage information.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
Takes no inputs.
get_balance_sheeton 7 other serversreads or searches
“Get balance sheet data.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs, 1 required
- tickerstringrequired“Stock ticker symbol”
- periodstring“'annual' or 'quarterly'”
get_capital_gainsreads or searches
“Get capital gains distributions (primarily for funds/ETFs).”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Ticker symbol (typically ETF or mutual fund)”
get_cash_flowon 4 other serversreads or searches
“Get cash flow statement data.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs, 1 required
- tickerstringrequired“Stock ticker symbol”
- periodstring“'annual' or 'quarterly'”
get_commodity_pricereads or searches
“Get commodity/futures price data.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- commoditystringrequired“Commodity name or ticker (e.g., 'gold', 'oil', 'crude oil', 'GC=F', 'CL=F')”
get_company_infoon 41 other serversreads or searches
“Get detailed company information and business description.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_company_officersreads or searches
“Get company officers and key management.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”

Show 56 more tools

get_company_overviewon 11 other serversreads or searches
“Get a beautiful, insightful company overview with context for every metric.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol (e.g., 'AAPL', 'MSFT')”
get_complete_analysisreads or searches
“Run a complete analysis of a stock by calling ALL available functions.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs, 1 required
- tickerstringrequired“Stock ticker symbol (e.g., 'AAPL', 'MSFT')”
- peersstring“Optional comma-separated peer tickers for comparison (e.g., 'MSFT,GOOGL,META') AI should provide contextually relevant peers based on the conversation.”
get_corporate_actionson 2 other serversreads or searches
“Get all corporate actions (dividends + splits combined).”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_crypto_priceon 9 other serversreads or searches
“Get cryptocurrency price and market data.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- symbolstringrequired“Crypto symbol (e.g., 'BTC', 'ETH', 'bitcoin', 'ethereum', 'BTC-USD')”
get_dividendson 10 other serversreads or searches
“Get dividend payment history and current metrics.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs, 1 required
- tickerstringrequired“Stock ticker symbol”
- periodstring“Time period for dividend history (1y, 5y, 10y, max)”
get_earnings_calendaron 9 other serversreads or searches
“Get earnings calendar including next earnings date and dividend dates.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_earnings_datesreads or searches
“Get upcoming and past earnings dates with estimates.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_earnings_historyon 3 other serversreads or searches
“Get historical earnings data with annual and quarterly figures.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_economic_calendaron 10 other serversreads or searches
“Get upcoming economic events (CPI, jobs, GDP, rate decisions) with expected and prior values.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs
- daysinteger“Look-ahead window in days (default 7)”
- limitinteger“Max events (default 30)”
get_eps_revisionsreads or searches
“Get EPS revision data showing analyst estimate changes.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_eps_trendreads or searches
“Get EPS (Earnings Per Share) trend data showing how estimates have changed.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_fast_infoon 1 other serverreads or searches
“Get fast-access ticker information (lightweight, quick response).”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_financial_summaryon 1 other serverreads or searches
“Get a comprehensive one-page financial summary of a stock.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_forex_ratereads or searches
“Get foreign exchange (forex) rate for a currency pair.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- pairstringrequired“Currency pair (e.g., 'EURUSD', 'EUR/USD', 'eurusd', 'GBPUSD=X')”
get_fund_holdingson 3 other serversreads or searches
“Get top holdings for an ETF or mutual fund.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs, 1 required
- tickerstringrequired“Fund ticker symbol (e.g., 'VOO', 'SPY', 'QQQ')”
- limitinteger“Maximum number of holdings to return (default 25)”
get_fund_overviewon 1 other serverreads or searches
“Get overview data for an ETF or mutual fund.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Fund ticker symbol (e.g., 'VOO', 'SPY', 'QQQ', 'ARKK')”
get_fund_sector_weightsreads or searches
“Get sector allocation/weights for an ETF or mutual fund.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Fund ticker symbol (e.g., 'VOO', 'SPY', 'QQQ')”
get_growth_estimateson 1 other serverreads or searches
“Get analyst growth estimates.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_historical_comparisonreads or searches
“Compare historical price performance of multiple stocks.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs, 1 required
- tickersstringrequired“Comma or space-separated ticker symbols (e.g., 'AAPL,MSFT,GOOGL')”
- periodstring“Time period for comparison (default: 1y)”
get_historical_dataon 1 other serverreads or searches
“Get historical price data for a stock.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
3 inputs, 1 required
- tickerstringrequired“Stock ticker symbol”
- periodstring“Time period - valid values: 1d, 5d, 1mo, 3mo, 6mo, 1y, 2y, 5y, 10y, ytd, max”
- intervalstring“Data interval - valid values: 1m, 2m, 5m, 15m, 30m, 60m, 90m, 1h, 1d, 5d, 1wk, 1mo, 3mo”
get_historical_price_on_datereads or searches
“Get historical price for a specific date.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs, 2 required
- tickerstringrequired“Stock ticker symbol”
- datestringrequired“Date in YYYY-MM-DD format (e.g., "2024-01-15")”
get_income_statementon 6 other serversreads or searches
“Get income statement data.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs, 1 required
- tickerstringrequired“Stock ticker symbol”
- periodstring“'annual', 'quarterly', or 'ttm' (trailing twelve months)”
get_industry_overviewon 2 other serversreads or searches
“Get an industry overview: largest, best-performing and fastest-growing companies.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input
- industrystring“Industry key, e.g.”
get_insider_purchaseson 1 other serverreads or searches
“Get insider purchases only (filtered for buys).”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_insider_roster_holderson 1 other serverreads or searches
“Get insider roster (list of company insiders).”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_insider_transactionson 7 other serversreads or searches
“Get recent insider trading activity.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_institutional_holderson 2 other serversreads or searches
“Get major institutional holders and their ownership.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_ipo_calendaron 2 other serversreads or searches
“Get upcoming IPOs (exchange, expected date, price range, shares).”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs
- daysinteger“Look-ahead window in days (default 14)”
- limitinteger“Max IPOs (default 25)”
get_isinreads or searches
“Get International Securities Identification Number (ISIN) for a ticker.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_key_ratiosreads or searches
“Get key financial ratios and valuation metrics.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_major_holderson 2 other serversreads or searches
“Get major holders summary (institutions, insiders, public float).”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_market_indiceson 2 other serversreads or searches
“Get current prices for major market indices.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
Takes no inputs.
get_market_moverson 8 other serversreads or searches
“Get today's market movers from Yahoo Finance screeners.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs
- categorystring“day_gainers, day_losers, most_actives, most_shorted_stocks, small_cap_gainers, undervalued_large_caps, undervalued_growth_stocks, growth_technology_stocks, agg…”
- countinteger“Number of results (1-50, default 10)”
get_market_statuson 10 other serversreads or searches
“Check if US stock markets are currently open.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
Takes no inputs.
get_market_summaryon 18 other serversreads or searches
“Get a market overview for a region: open/closed status plus main indices, futures, bonds and FX.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input
- regionstring“US, GB, DE, FR, JP, HK, IN, CA, AU, BR, EUROPE, ASIA (default US)”
get_mutualfund_holdersreads or searches
“Get mutual fund holders.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_options_chainon 4 other serversreads or searches
“Get options chain data (calls and puts).”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs, 1 required
- tickerstringrequired“Stock ticker symbol”
- expirationstring“Specific expiration date (YYYY-MM-DD) or empty for nearest”
get_options_expirationson 1 other serverreads or searches
“Get all available options expiration dates.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_peer_comparisonon 1 other serverreads or searches
“Compare a stock with its peers on key metrics.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs, 1 required
- tickerstringrequired“Primary stock ticker symbol”
- peersstring“Optional comma-separated peer tickers (if not provided, uses sector peers)”
get_sec_filingson 7 other serversreads or searches
“Get recent SEC filings (10-K, 10-Q, 8-K, etc.).”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_sector_overviewon 2 other serversreads or searches
“Get a sector overview: size, weight, largest companies, industries and sector ETFs.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input
- sectorstring“basic-materials, communication-services, consumer-cyclical, consumer-defensive, energy, financial-services, healthcare, industrials, real-estate, technology, u…”
get_sector_performanceon 2 other serversreads or searches
“Get performance of major market sectors.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
Takes no inputs.
get_shares_historyreads or searches
“Get shares outstanding over time (dilution or buybacks).”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs, 1 required
- tickerstringrequired“Stock ticker symbol”
- yearsinteger“How many years back (default 3)”
get_splits_calendarreads or searches
“Get upcoming stock splits.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs
- daysinteger“Look-ahead window in days (default 14)”
- limitinteger“Max splits (default 25)”
get_stock_newson 3 other serversreads or searches
“Get recent news articles about a stock.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs, 1 required
- tickerstringrequired“Stock ticker symbol”
- limitinteger“Maximum number of news articles to return (default 10)”
get_stock_priceon 3 other serversreads or searches
“Get current stock price and key metrics for a ticker symbol.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol (e.g., 'AAPL', 'TSLA', 'SPY')”
get_stock_quoteon 13 other serversreads or searches
“Get detailed quote with bid/ask, day range, and trading info.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_stock_splitson 2 other serversreads or searches
“Get stock split history.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_trending_tickersreads or searches
“Get today's most active (trending) US tickers.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input
- countinteger“Number of trending tickers to return”
get_ttm_financialsreads or searches
“Get trailing-twelve-month (TTM) income statement and cash flow.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
get_upcoming_earningsreads or searches
“Get the market-wide earnings calendar (which companies report in the next N days).”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs
- daysinteger“Look-ahead window in days (default 7)”
- limitinteger“Max companies (default 25)”
get_upgrades_downgradeson 1 other serverreads or searches
“Get detailed analyst upgrades and downgrades history.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
2 inputs, 1 required
- tickerstringrequired“Stock ticker symbol”
- limitinteger“Maximum number of rating changes to return (default 20)”
get_valuation_historyon 2 other serversreads or searches
“Get valuation measures now and for the last quarters (market cap, EV, P/E, PEG, P/S, P/B, EV/EBITDA).”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Stock ticker symbol”
run_self_teston 1 other serverreads or searches
“Run comprehensive self-test of the yfinance-ai tools (64 checks).”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input
- tickerstring“Ticker symbol to use for testing (default: SPY - reliable ETF with full data)”
search_tickerreads or searches
“Search for ticker symbols by company name or keyword.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- querystringrequired“Company name or keyword to search”
validate_tickerreads or searches
“Validate if a ticker symbol exists and is tradeable.”
Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes
1 input, 1 required
- tickerstringrequired“Ticker symbol to validate”

Each quoted sentence is the first sentence of the publisher’s own description. The kind of tool and the “changes data” mark are our AI model’s reading of that description, not something we tested: two differently worded runs had to agree, otherwise no label is shown, and nobody has checked them by hand. A tool without the “changes data” mark is described as only reading, searching or calculating, or the two runs did not agree. No tool was called. Read the publisher’s full description before relying on it. “Publisher declares” lists the hints the server itself sends with the tool (MCP annotations: read-only, destructive, idempotent, open-world); they are the publisher's claims, not checked by us. Inputs are the parameters in the tool's own input schema: name, declared type, whether it is required, and the first sentence of its description. Read 2026-10-23.

How well are its tools described?

Features #4 and #5

How clearly this server's own tool descriptions say what a tool does, and how consistent its tool list is. The first part is an AI model's yes/no reading of each description; the second part is counted. We do not turn it into a grade.

Descriptions

AI reading of each description

Says what the tool does: 100% of 68 tools
Says what it returns: 100% of 68 tools
States limits, defaults or errors: 12% of 67 tools
Says when to use it: 1% of 67 tools
Items covered per tool: 2.2 of 4 on average

Counted from the listing

Parameters with a description: 100% of 86
Tools with a description: 100% of 68
Typical description length: 125 characters

The tool set

Counted from the listing

Tools: 68
Size of the list: about 11,778 tokens for an agent to load (characters ÷ 4)
Naming: 68 of 68 names use snake_case

AI reading: easy to mix up

No pair found.

The AI items cover 68 of 68 tools: for a tool where two differently worded runs disagreed, that item is left out. They were not checked by hand, and no tool was called. “Easy to mix up” means two tools whose names or descriptions overlap without saying how they differ; the AI found none, comparing tools within groups of 40. We do not rate whether the tool set is complete or whether side effects are spelled out, because our AI reading of those was not reliable enough.

How do I add it to my client?

Config from the registry entry

From the PyPI package yfinance-ai

Our sandbox started this package on 2026-10-23 (a read-only session: no tool was called).

Add to CursorAn install link in the format Cursor documents, holding the Cursor config below. The command runs the publisher’s code on your machine.

Claude Desktop · claude_desktop_config.json (Settings → Developer → Edit Config)

{
  "mcpServers": {
    "yfinance-ai": {
      "command": "uvx",
      "args": [
        "yfinance-ai==5.0.5"
      ]
    }
  }
}

Cursor · .cursor/mcp.json in a project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "yfinance-ai": {
      "command": "uvx",
      "args": [
        "yfinance-ai==5.0.5"
      ]
    }
  }
}

VS Code · .vscode/mcp.json

{
  "servers": {
    "yfinance-ai": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "yfinance-ai==5.0.5"
      ]
    }
  }
}

VS Code (command line) · Bash or zsh terminal (macOS, Linux)

code --add-mcp '{"name":"yfinance-ai","type":"stdio","command":"uvx","args":["yfinance-ai==5.0.5"]}'

Claude Code

claude mcp add --transport stdio yfinance-ai -- uvx yfinance-ai==5.0.5

Try it in the MCP Inspector · runs on your machine, opens in your browser · Node 22.19+

npx @modelcontextprotocol/inspector@2.11.0 -- uvx yfinance-ai==5.0.5

This runs the publisher's code on your machine (uvx). Read its README first.
The MCP Inspector lists the server's tools, resources and prompts; a tool you call there runs for real.

Built from the server's registry entry with each client's documented format (checked 2026-10-14; the Cursor link and the VS Code command 2026-10-19; the MCP Inspector command 2026-10-21). Values in < > are yours to fill in; this page never contains a key. Where the server needs a setting the entry does not declare, it can still fail to start.

Can it be installed, and is it up to date?

Version pin · advisories

Listed version

Registry lists: 5.0.5
Latest stable: 5.0.5
Status: current
Withdrawn: no

Source: pypi.org · 2026-10-23. About the version the registry lists; a manual install may resolve to a different one.

Dependency advisories

Counted in the full dependency tree as resolved on 2026-10-23 (OSV.dev). Bars share one scale. The package itself has no known vulnerability (OSV.dev).

Integrity, provenance, license

Integrity: sha256-32b477c42e421c009…
License: MIT

Source: the package registry · 2026-10-23.

Usage

Downloads: 0 in the last month

Source: pypistats.org · 2026-10-23.

Does the registry listing match what we found?

Feature #6

The registry verifies a package once, when it is published, and does not re-check it. A difference below is about the listing, not a judgement of the publisher.

Registry says	We found	Result	Source · date
Published package can be started	Started and answered	matches	our test · 2026-10-23
Version 5.0.5 on PyPI	Exists and can be installed	matches	PyPI · 2026-10-23
Repository github.com/lkcair/yfinance-ai-mcp	Opens publicly	matches	api.github.com · 2026-10-23

Who made it?

Feature #7 · lineage

Facts about the publisher. We do not turn them into a trust score.

Namespace: io.github.lkcair · 2 servers
GitHub owner: a personal account (lkcair)

Repository: github.com/lkcair/yfinance-ai-mcp
Stars: 0
Repository age: 0–30 days
Last push: 0–30 days ago
Archived: no
Security policy: none found (we looked for SECURITY.md in the repository and in its owner’s .github repository)

Source: the registry entry and api.github.com · 2026-10-23; security policy read from GitHub · 2026-10-23.

Publish this server? Run these checks against it yourself before release, from your own machine: a server the command starts, or your own server at its URL after a one-time proof that you control it: npx protocolprobe-selftest.

Choosing

Record checks

Public records · not a safety rating

7 of 8 record checks met · 1 does not apply

#14,745 of 15,112 packages by monthly downloads, tied with 367 others
Not ranked by stars: 0 stars (ranked from 10)

MetRegistry entry is active and says how to run itActive, with a package or a remote address.
MetSource repository link opensThe linked GitHub repository is public.
MetRepository is not archivedNot archived.
MetCode pushed to the repository in the 90 days before our checkLast push 0-30 days before our check.
Not metRepository publishes a security policy (SECURITY.md)No SECURITY.md in the places GitHub reads it from.
MetPackage names its licence with a standard (SPDX) identifierMIT
MetThe version the registry lists can be installed and is not withdrawnThe listed version exists and is current.
Does not applynpm package carries build provenance (attestation)PyPI packages have no npm-style attestation.
MetNo known critical or high advisory in the package or its dependenciesNone known in the package or its dependency tree.

Read from public records only: the registry entry, npm/PyPI, GitHub and advisory databases, checked 2026-10-23. No tool was called. Only “met” and “not met” are counted, so the total differs between servers; a check that does not apply or that we could not run is listed, never counted against it. It is not a safety rating. How each check works · Leaderboards

Common questions about io.github.lkcair/yfinance-ai

Answered from the data above

Is io.github.lkcair/yfinance-ai safe to install?

We do not rate servers as safe or unsafe. 7 of its 8 applicable record checks are met (facts from public records, each listed on this page). What the records show: Its source repository opens publicly. Its repository had a push in the last 90 days. The listed version is the latest stable release. The package itself has no known vulnerability (OSV.dev). Its full dependency tree has no known advisory. These are facts with their sources on this page, not a safety guarantee, and we did not run its tools.

Has io.github.lkcair/yfinance-ai been security tested?

Partly. 2 of the 12 checks that apply to it were exercised. We started the package in an isolated sandbox and read what it declares, but this test round was read-only, so its tools were not called. No security verdict is published before verification.

What can io.github.lkcair/yfinance-ai do?

It lists 68 tools. In our AI model's reading of their descriptions (two runs had to agree, nobody checked it by hand), they include tools that read or search. We did not call any tool, so this describes the text, not the behaviour.

Can io.github.lkcair/yfinance-ai change or delete data?

None of its 68 tools is described as changing anything (our AI model's reading of the descriptions; nobody checked it by hand). We did not call any tool.

Does io.github.lkcair/yfinance-ai publish a security policy?

We found no SECURITY.md in its repository (root, .github/ or docs/) or in its owner's .github repository.

Is the listed version current?

Yes. The registry lists 5.0.5, the latest stable release on PyPI.

Where is the source code of io.github.lkcair/yfinance-ai?

In github.com/lkcair/yfinance-ai-mcp, which opens publicly.

Found this page useful?

Anonymous · no sign-in

A quick, anonymous reaction — no account, no email. One per kind from your browser. The tally updates when the page is next refreshed, and it is only a rough count, never a safety rating or a measured number of people.

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Active servers whose topic is also “finance-and-payments” and that have at least one tool of the same kind; most kinds in common first, then most GitHub stars. The topic and the tool kinds are an AI model's reading of the publishers' descriptions, not checked by hand. Similar is not a recommendation.

Compare with another server

Side by side: registry entry, our read-only session, the tools and the 18 classification fields. Same values as each page; no score.

Security testing

What did we test, and what did we leave out?

18 checks · features #1, #2

Not probed (read-only run)

We started the package in an isolated sandbox and read what it declares, but this test round was read-only, so its tools were not called. No security score is given; a check we did not run is never counted as passed.

The 18 checks at a glanceour test · 2026-10-23

Inventory: exercised
Hidden instructions: exercised
Real execution: not run · our policy
Secret leak: not run · nothing to check it against
Internal addresses: not run · our policy
Unconfirmed changes: not run · our policy
Bad input: not run · our policy
Model requests: not run · nothing to check it against
Sensitive questions: not run · nothing to check it against
Folder boundary: not run · our policy
Log leaks: not run · nothing to check it against
Hidden content: not run · nothing to check it against
Fake assistant turns: not applicable
Token passthrough: not applicable
Token audience: not applicable
Sign-in redirect: not applicable
Consent handling: not applicable
Sign-in metadata: not applicable

2 exercised10 not run (reason given)6 not applicable

Each check ends in exactly one state: exercised, not run (with the reason), or not applicable (with the reason). 2 of the 12 checks that apply to it were exercised. We do not publish security-check outcomes for named servers.

Exercised · 2

1Inventory
tool-listReads the declared tools, resources and prompts.exercised
2Hidden instructions
description-poisoningLooks for hidden instructions in tool descriptions.exercised

Not run, with the reason · 10

3Real execution
real-executionCalls a tool and checks what really happens.This check calls the package's tools. This test round was read-only, so no tool was called; tools can act on outside services with the publisher's or a user's account.not run · our policy
4Secret leak
canary-leakPlants a fake secret and checks whether it leaks.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
5Internal addresses
ssrfChecks whether a tool can be steered to internal addresses.This check calls the package's tools. This test round was read-only, so no tool was called; tools can act on outside services with the publisher's or a user's account.not run · our policy
6Unconfirmed changes
write-without-confirmationChecks whether tools that change data act without asking.This check calls the package's tools. This test round was read-only, so no tool was called; tools can act on outside services with the publisher's or a user's account.not run · our policy
7Bad input
error-handlingSends bad input and watches how the server answers.This check calls the package's tools. This test round was read-only, so no tool was called; tools can act on outside services with the publisher's or a user's account.not run · our policy
8Model requests
samplingChecks whether the server asks the client's model to act for it.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
9Sensitive questions
elicitation-sensitive-dataChecks whether the server asks users for sensitive data.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
10Folder boundary
root-boundaryChecks whether the server reaches outside the folders it was given.This check calls the package's tools. This test round was read-only, so no tool was called; tools can act on outside services with the publisher's or a user's account.not run · our policy
11Log leaks
logging-side-channelChecks whether log messages carry data they should not.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
12Hidden content
audience-hidingChecks resources that hide content from the user.This check needs content the server returns, and nothing was read or called.not run · nothing to check it against

Does not apply to this server · 6

13Fake assistant turns
fake-assistant-turnChecks prompts that pose as the assistant's own words.The server exposes no prompts.not applicable
14Token passthrough
token-passthroughChecks whether the server forwards a user's token to other services.The server runs locally over standard input/output, so there is no sign-in flow to check.not applicable
15Token audience
token-audience-validationChecks whether tokens meant for another service are accepted.The server runs locally over standard input/output, so there is no sign-in flow to check.not applicable
16Sign-in redirect
open-redirectChecks the sign-in redirect for abuse.The server runs locally over standard input/output, so there is no sign-in flow to check.not applicable
17Consent handling
confused-deputyChecks consent handling when one service acts for another.The server runs locally over standard input/output, so there is no sign-in flow to check.not applicable
18Sign-in metadata
oauth-url-schemeChecks the published sign-in metadata for unsafe URLs.The server runs locally over standard input/output, so there is no sign-in flow to check.not applicable

Source: our own test in an isolated sandbox, 2026-10-23, mcp-runtime-engine@0.1.0. Which checks count and why follows our published scoring model.

What happened during the test?

Feature #8

The steps in order, as the test record holds them.

0 msStarted the published package in an isolated sandbox (read-only mode)
82,973 msConnected after 0 redirects.
Read the inventory: 68 tools, 0 resources, 0 prompts.
83,608 msFinished: 2 checks exercised.

Reference

How is it classified?

18 fields

One value per field, each with its source. Fields written by AI models are marked. A field with no value says why.

TopicAI-classified

finance-and-payments

AI-classified · 2026-10-23

Pricing modelAI-classified

no value

The website listed in the registry is a code-hosting, package or marketplace page, not the product's own site.

Programming language

Python

api.github.com · 2026-10-23

Hosting type

local package

registry · 2026-10-23

MCP capability

prompts, resources, tools

our test · 2026-10-23

Transport

standard input/output

registry · 2026-10-23

Required credentials

none declared

registry · no declaration is not a guarantee

Package registry

pypi

registry · 2026-10-23

Freshness

0–30 days

registry updatedAt · 2026-10-23

Lifecycle status

active

registry · 2026-10-23

License class

permissive

package registry · 2026-10-23

Integrity hash

declared (sha256)

package registry · 2026-10-23

Signature / provenance

does not apply

PyPI publishes no registry signature or attestation equivalent to npm dist.signatures

Dependency advisories

none known

OSV.dev · 2026-10-23

Popularity

0 downloads a month

package registry · 2026-10-23

Publisher signals

owner: a personal account · repository age: 0–30 days · stars: 0–9

api.github.com · 2026-10-23

Maintenance

active

api.github.com · 2026-10-23

Environment

your machine

where it runs, from the hosting type

“Not stated” means the source did not state it; “does not apply” means it does not apply to this kind of server; “our limit” means our own lookup failed. A linked value opens the directory filtered to the same value.

Cite or correct this page

Sources and corrections

Suggested citation

ProtocolProbe. “io.github.lkcair/yfinance-ai: MCP server record.” Data checked 2026-10-23. https://protocolprobe.com/mcp/servers/io.github.lkcair/yfinance-ai

Figures are valid for the date shown. Our facts on this page are CC BY 4.0: reuse them with a link and the check date. Quoted text (the publisher’s descriptions, website quotes, tool names) is not ours to license.

As JSON: this record in the API · API documentation.

Badge for your README

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It shows this server's record-check count: facts from public records, no tool called. It is not a security rating or a pass. It links here and updates after each data reload.

Something wrong, or is this yours?

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