Developer data workflow
Public API Lab
Inspect public data requests and copy reproducible analysis code. Responses preserve source references, units, coverage, and missing-data states.
- Public endpoints
- 628 evidence domains
- Validated recipes
- 124live and editable requests
- Current rows
- 235,8101483 declared fields
- API keys
- 0open GET access
Endpoint topologyGET /api/public/:dataset
node size follows endpoint familiesReviewed through Aug 15, 2026
No API keyOpen same-origin GET requests across every endpoint family.
JSON + CSVOne filtered row contract in two portable response formats.
Five-minute cacheShared responses retain a 24-hour stale revalidation window.
Audit source review Public API live workbench
Live request console
Interrogate the public evidence layer.
Select a contract, tune its parameters, and run the exact same-origin request used by the observatory.- Endpoints
- 62
- Recipes
- 124
- Authentication
- None
Endpoint register
62 / 62Observatory system
Competition monitor signals
Latest-to-prior observed comparisons across definition-stable market series, strict Census sector medians, banking and fixed-broadband geographic screens, Census business dynamics, and federal HSR activity, with separate periods, units, evidence counts, sources, and non-composite guardrails.Research promptWhich industry-level concentration signals increased between their observed anchors?Strict Census sector medians that increased.
GET
/api/public/signals?domain=industries&direction=increasedReady to run this request.The response envelope, headers, timing, byte count, and bounded preview will appear here.
Interpretation boundary