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GB-UKP Option 3 Hybrid Blueprint API & DB Probed
Schema v1.0.0 • Updated 2026-07-22

UK Parliament (Westminster) Data Audit Blueprint

Declarative field mappings, API endpoints, rate limits, Hansard disambiguation rules, and continuous drift health probe status.

Location / Chamber London, Westminster (SOVEREIGN_BICAMERAL)
Open License Open Parliament Licence v3.0 / OGL v3.0
Target Cohort 2019-2024 BICD Cohort 1

API Endpoints & Access Specifications

Endpoint NameTarget URLMethodRate LimitFormat
Bills Search APIhttps://bills-api.parliament.uk/api/v1/BillsGET600 req/minJSON
Bill Details APIhttps://bills-api.parliament.uk/api/v1/Bills/{id}GET600 req/minJSON
Bill Stages APIhttps://bills-api.parliament.uk/api/v1/Bills/{id}/StagesGET600 req/minJSON

Dual-Layer Field Mappings & Provenance Matrix

Canonical FieldNative Key PathProvenance TierConfidenceNotes / Transformation
normalized.titleshortTitleNATIVE_DIRECTHIGH
normalized.parliament_termsession.nameENRICHEDHIGHMapped from session range (e.g. 2019-2021 Session -> 58th Parliament)
normalized.initiator_typebillWithdrawnENRICHEDHIGHDerived from member sponsor party & minister role join against Executive Roster
normalized.final_statuscurrentStage.stageNameENRICHEDHIGHMapped from stage name (e.g. Royal Assent -> ENACTED)
normalized.termination_mechanismisActENRICHEDHIGH

Hansard Resolution

Format: REST API / XML
Disambiguation: Member ID (api.parliament.uk/members/{id})
Timestamp Granularity: SPEECH_LEVEL
Interruption Flags: Available

Procedural Rules

  • Bicameral progression: Bills originate in Commons or Lords and must pass both chambers identical text.
  • Money Bills carry Speaker certification under Parliament Act 1911.

5-Bill Typology Empirical Audit Tests

381 8 Stages

European Union (Withdrawal Agreement) Act 2020

Fast-Track Executive Bill

Passed in 28 calendar days across Commons and Lords.

2783 12 Stages

High Speed Rail (Crewe - Manchester) Bill

Hybrid Bill

Carried over across sessions.