MCP Usage
With the MCP server running, you can ask AI assistants natural language questions. The server provides ~14K tokens of instructions that teach the LLM how to route questions to the right tools across 40+ APIs.
How It Works
When the MCP server connects to a client (VS Code, Claude Desktop, Cursor), it sends:
- Instructions (~14K tokens) — module descriptions, a cross-reference routing table, and analysis rules. This stays in the model's context for the entire session.
- 300+ tool definitions — each with name, description, and parameter schema.
The routing table tells the LLM which specific tools + parameters to combine for each question type. For example, when you ask about the deficit, the model reads:
DEBT/DEFICIT → FRED(fred_series_data with GDP, FYFSGDA188S) + Treasury(query_fiscal_data with debt_to_penny, avg_interest_rates) + World Bank(wb_indicator with GC.DOD.TOTL.GD.ZS)...and knows to call those 3 tools with those specific parameters, then cross-reference the results.
Example Prompts
Economic
"What's the current state of the U.S. economy? Show me GDP, unemployment, inflation, and interest rates."
Tools: fred_series_data (GDP, UNRATE, CPIAUCSL, FEDFUNDS)
"Compare Biden and Trump's economic performance using the same metrics."
Tools: fred_series_data, treasury_query (debt), fr_executive_orders
"Give me a complete economic and health profile for Texas."
Tools: bea_gdp_by_state, census_query, cdc_places_health, usaspending_by_state, hud_fair_market_rents
Legislative
"What happened with the Inflation Reduction Act? Who sponsored it, how did the vote break down by party?"
Tools: congress_bill_details, congress_senate_votes, congress_bill_actions, fred_series_data (before/after), lobbying_search
"Who's lobbying on AI regulation and how much are they spending?"
Tools: lobbying_search, lobbying_detail, congress_search_bills
Health
"Show me the adverse event profile for Ozempic including clinical trials, FDA reports, and pharma payments to doctors."
Tools: fda_drug_events, fda_drug_counts, fda_drug_labels, fda_approved_drugs, fda_drug_shortages, clinical_trials_search, open_payments_search, nih_search_projects
Financial
"Show me which banking PACs gave money to members of the Senate Banking Committee, and how those members voted on banking deregulation."
Tools: congress_search_members, fec_search_committees, fec_committee_disbursements, congress_senate_votes, lobbying_search
"Which banks have the most consumer complaints?"
Tools: cfpb_search_complaints, cfpb_complaint_aggregations, cfpb_complaint_trends
Tips for Better Prompts
- Be specific about time ranges — "GDP since 2020" beats "GDP trends"
- Ask for cross-references — "...and compare internationally" triggers World Bank data
- Name the data source — "Using FRED data, show me..." helps pick the right tool
- Ask for context — "What was the debt-to-GDP ratio?" pulls GDP alongside debt