FRED
The sample tests normalization of a V1 response shape and vintage selection. It does not request a live series or validate a key.
V1 observations documentationReviewed 16 October 2026
Provider interface specifications
A dated, deliberately scoped implementation map. These public documentation references are not a claim of integration certification.
| Provider / interface | Included sample scope | Time interpretation | Access and rights boundary |
|---|---|---|---|
| FRED V1 observations | observations array; date, realtime_start, realtime_end and value | Date-precision realtime period; missing marker preserved | Live API documentation requires a key. Series rights vary. V2 also exists; this sample targets V1. |
| World Bank V2 indicators | A complete array of two-element page envelopes | Annual period preserved; fixture availability uses retrieval time | Public indicator requests may be unauthenticated; dataset-specific terms and third-party exceptions must be checked. |
| SEC EDGAR Company Facts | One US-GAAP instant concept and selected unit; filed/end/accn/val | Filed date is date precision; accession retained | Official fair-access policy and declared User-Agent apply. SEC data APIs do not support browser CORS. |
World Bank
Page metadata is part of the contract. A lastupdated value describes the dataset response, not the original release time of every observation.
API query structuresSEC
The fixture names a fictional issuer and invented values. Concept, unit, period and filing context must stay attached to a real fact.
EDGAR API documentationMaintain the boundary record.
Documentation owner: Darren O’Neill as commissioning publication owner. Corrections and specification changes are reviewed manually before a new version is issued. No automatic upstream monitoring or compatibility SLA is promised. Test results apply to the retained fixtures, not every payload a provider may return.
Inspect source access and rights notes