# Record field observations

Build-time release reference. Runtime readiness, deployment, payment settlement and external indexing are not evaluated here. Prices are proposed; this file cannot authorize execution or payment.

Profile caller-selected JSON Pointer fields across up to 500 records: missing/null/type counts, typed distinct values, numeric bounds/median, UTF-16 string lengths and bounded duplicate-row evidence. Observations only; no inferred schema guarantee or population extrapolation.

Release: 0.29.0. Built: 2026-10-06T15:38:00Z.

## Choose for
- profile missing null fields in JSON records
- inspect dataset types cardinality duplicates before validation
- measure field completeness and mixed types

## Outside this profile
- Infer a guaranteed schema or population distribution
- Fuzzy entity matching or CSV file comparison

Proposed nominal USD 0.005 per successful call; payer fees excluded. No verified runtime availability.

- [Exact release contract](/reference/services/record-profile.json)
- [Input schema](/reference/schemas/record-profile.input.json)
- [Output schema](/reference/schemas/record-profile.output.json)
- [Fixed example](/reference/examples/record-profile.json)
- [Complete HTML reference](/discover/tools/record-profile)