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U.S. Bureau of Labor Statistics Public Data API

U.S. Bureau of Labor Statistics · Monthly releases on the BLS schedule (Employment Situation first Friday, CPI mid-month, 8:30 a.m. ET); values served are the current vintage — recent CES months are preliminary, and seasonally adjusted series are revised when seasonal factors are re-estimated.

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/bls/series/CUSR0000SA0/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 All items in U.S. city average, all urban consumers, seasona?", "source": "bls"}'

As MCP tools in Claude, Cursor, or any agent framework:

claude mcp add --transport http starwell https://starwell.dev/api/starwell/mcp

Series