Federal Reserve Bank of St. Louis · Series update on their producing agencies' release schedules (BLS/BEA/Census mornings, Board of Governors afternoons); values served are the current vintage (latest revision).
License: public-domain · official terms. Attribution text and per-series license flags ride in every API envelope.
Source API docs · Verification statuses come from golden-value and freshness checks against the live source; see status.
Quickstart
Latest observations, with provenance and citation on every value:
curl "https://starwell.dev/api/starwell/v1/sources/fred/series/GDPC1/observations?latest=12"
A computed, cited answer from this source:
curl -X POST "https://starwell.dev/api/starwell/v1/answer" \
-H "Content-Type: application/json" \
-d '{"question": "What is the latest Real Gross Domestic Product?", "source": "fred"}'
As MCP tools in Claude, Cursor, or any agent framework:
claude mcp add --transport http starwell https://starwell.dev/api/starwell/mcp
Series
| Series | Indicator | Geography | Unit | Freq | Coverage | Verification |
|---|---|---|---|---|---|---|
| GDPC1 | Real Gross Domestic Product | United States | Billions of Chained 2017 Dollars | quarterly | 1947-01-01 .. 2026-01-01 | passing |
| M2SL | M2 | United States | Billions of Dollars | monthly | 1959-01-01 .. 2026-05-01 | passing |
| FEDFUNDS | Federal Funds Effective Rate | United States | Percent | monthly | 1954-07-01 .. 2026-06-01 | passing |
| DGS10 | Market Yield on U.S. Treasury Securities at 10-Year Constant Maturity, Quoted on an Investment Basis | United States | Percent | daily | 1962-01-02 .. 2026-07-16 | passing |
| INDPRO | Industrial Production: Total Index | United States | Index 2017=100 | monthly | 1919-01-01 .. 2026-06-01 | unverified |
| UNRATE | Unemployment Rate | United States | Percent | monthly | 1948-01-01 .. 2026-06-01 | passing |
| CPIAUCSL | Consumer Price Index for All Urban Consumers: All Items in U.S. City Average | United States | Index 1982-1984=100 | monthly | 1947-01-01 .. 2026-06-01 | passing |
| CPILFESL | Consumer Price Index for All Urban Consumers: All Items Less Food and Energy in U.S. City Average | United States | Index 1982-1984=100 | monthly | 1957-01-01 .. 2026-06-01 | unverified |
| PAYEMS | All Employees, Total Nonfarm | United States | Thousands of Persons | monthly | 1939-01-01 .. 2026-06-01 | unverified |
| GDP | Gross Domestic Product | United States | Billions of Dollars | quarterly | 1946-01-01 .. 2026-01-01 | unverified |
| HOUST | New Privately-Owned Housing Units Started: Total Units | United States | Thousands of Units | monthly | 1959-01-01 .. 2026-06-01 | passing |
| CIVPART | Labor Force Participation Rate | United States | Percent | monthly | 1948-01-01 .. 2026-06-01 | unverified |