Documentation · Apex
Data dictionary, sources, provenance, licence, and integration recipes. No login required. Additional questions to data@apex-db.org.
start here
- evaluatingSources followed by Provenance & DQ. Covers data origin and the per-value attribution model.
- integratingData dictionary for the column reference, Quickstart for the first request, plus a recipe from Integration guides.
Reference
Data dictionary
343 fieldsEvery column in the dataset, with type, unit, % populated, and contributing sources.
ReadSources
57 sourcesRegistry of 57 ingested sources, by tier, with licence and attribution chain.
ReadContracts
Machine-readable field, source, sample, OpenAPI, and LLM discovery contracts.
ReadCoverage notes
Record counts, field groups, coverage-matrix denominator, source geography, and limits.
ReadProvenance & DQ
Per-value attribution model, cross-source conflict resolution, and the PCAF DQ score computation.
ReadIntegration
Quickstart
startVerify the API response fixture, request the email-delivered sample, then switch to production access.
ReadREST API
Endpoint list, auth, rate limits, response envelope, error semantics.
ReadMCP server
newApex over Model Context Protocol. Compatible with Claude, Cursor, and other MCP clients. Spec values returned with source URLs.
ReadIntegration guides
Parquet + DuckDB, Parquet + polars, CSV + Excel / Power BI, SQLite, REST + Python / JS, R + arrow.
ReadOperational
Licence
Permitted use, attribution requirements, redistribution terms. DPA on request.
ReadChangelog
Versioned release notes, per-snapshot diffs.
ReadReleases & samples
Current snapshot metadata, sample manifest state, formats, and buyer download flow.
ReadFAQ
Common pre-sales questions, anchor-linked.
Read