Yahoo Finance

Last tested 2026-10-22

Score 83/100 · Last tested 2026-10-22 · Version tested 0.14.0 · Package yfmcp

Summary: Yahoo Finance completed an MCP handshake without credentials and exposed 15 tools.

Test results

TestResultPointsEvidence
installpass20uv pip install yfmcp (Python venv, Linux) succeeded in 0s.
handshakepass30MCP initialize + tools/list over stdio succeeded with no credentials; 15 tools listed in 3.7s.
maintenancepartial15Latest release published 77 days before test.
docspass15README over 3,000 chars; install instructions present; mcpServers config example present. Automated check of the package's own README (PyPI long_description (package README)).
licensepartial3License not machine-detected as OSI (None).

Local-model readiness

Schema context cost: ~4,115 tokens for 15 tools (17,204 bytes) · about 50% of an 8k context. Method: tiktoken cl100k_base over compact JSON of name+description+inputSchema (approximate).

Small-model friendly (schema heuristic, not a model result): medium.

Small-model task runs: Not yet tested.

Not tested

We did not test behavior with real credentials, security, or performance under load. These are planned; see methodology.

Tools listed

yfinance_get_ticker_info, yfinance_get_analyst_price_targets, yfinance_get_analyst_estimates, yfinance_get_fund_data, yfinance_get_upgrades_downgrades, yfinance_get_ticker_news, yfinance_search, yfinance_screen, yfinance_screen_gappers, yfinance_get_top, yfinance_get_price_history, yfinance_get_financials, yfinance_get_option_chain, yfinance_get_option_dates, yfinance_get_holders

Config used in our test

{
  "mcpServers": {
    "yahoo-finance": {
      "command": "uvx",
      "args": [
        "yfmcp"
      ]
    }
  }
}

FAQ

Is Yahoo Finance deprecated?

No. yfmcp was not deprecated or archived when we last tested it on 2026-10-22.

What replaces Yahoo Finance?

Nothing; Yahoo Finance is not deprecated as of 2026-10-22.

Does Yahoo Finance need an API key?

No. It completed an MCP handshake with no credentials and listed 15 tools.

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Tested by TestedMCP: 83/100

The badge always shows the current score; payment never changes it.

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