Developer Resources

API Documentation

Integrate Lambda Finance data directly into your applications via REST APIs, or use Claude Desktop and Claude Code with our MCP server for AI-powered financial analysis.

Quick Start

Get Your API Key

Configure Your Client

Add the Lambda Finance MCP server to your Claude configuration.

Start Querying

Ask Claude about stocks, earnings, news, and financial data.

Claude Desktop Configuration

{
  "mcpServers": {
    "lambda-finance": {
      "type": "streamable-http",
      "url": "https://www.lambdafin.com/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

Available Endpoints

10 powerful tools for financial data analysis. Click "View Example" to see request and response formats.

All (10)Query (5)Analysis (2)Utility (2)Screening (1)

get_metrics Query

Get financial metrics for up to 5 stock symbols including price, P/E ratio, EPS, market cap, and more.

Parameters

NameTypeRequiredDescription

symbolsList[str] Yes Stock tickers (max 5)

get_earnings_call Query

Retrieve earnings call transcripts for a specific company and quarter.

Parameters

NameTypeRequiredDescription

symbolstr Yes Stock ticker symbol

yearint Yes Fiscal year

quarterint Yes Fiscal quarter (1-4)

get_news Query

Fetch recent news articles for a specific ticker or date range.

Parameters

NameTypeRequiredDescription

symbolstr No Stock ticker symbol

from_datestr No Start date (YYYY-MM-DD)

to_datestr No End date (YYYY-MM-DD)

limitint No Max articles to return (default: 10)

get_financial_statement Query

Retrieve income statement, balance sheet, or cash flow statement data.

Parameters

NameTypeRequiredDescription

symbolstr Yes Stock ticker symbol

statement_typesList[str] Yes Types: income, balance, cashflow

yearint No Specific fiscal year

periodstr No annual or quarterly

search_news Query

Search news articles by keyword or topic across all sources.

Parameters

NameTypeRequiredDescription

querystr Yes Search keywords or phrase

from_datestr No Start date (YYYY-MM-DD)

limitint No Max articles to return (default: 20)

get_vertical_analysis Analysis

Perform common-size financial analysis, expressing line items as percentages.

Parameters

NameTypeRequiredDescription

symbolstr Yes Stock ticker symbol

statement_typestr Yes income, balance, or cashflow

yearsint No Number of years to analyze (default: 3)

make_graph Analysis

Generate time-series chart data for visualization purposes.

Parameters

NameTypeRequiredDescription

symbolstr Yes Stock ticker symbol

metricsList[str] Yes Metrics to chart (e.g., revenue, netIncome)

periodstr No annual or quarterly

yearsint No Number of years of data

get_statement_variables Utility

List all available metrics and variables for financial statements.

Parameters

NameTypeRequiredDescription

statement_typestr No Filter by statement type

screen_stocks Screening

Filter and screen stocks based on multiple financial criteria.

Parameters

NameTypeRequiredDescription

filtersDict Yes Filter criteria (e.g., marketCap, peRatio)

sort_bystr No Field to sort results by

limitint No Max results to return (default: 50)

get_screening_fields Utility

List all available fields that can be used for stock screening.

Authentication

All API requests require authentication via an API key. Include your key in the X-API-Key header with each request.

curl -X POST https://www.lambdafin.com/mcp \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{"method": "get_metrics", "params": {"symbols": ["AAPL"]}}'

Generate API Key