> ## Documentation Index
> Fetch the complete documentation index at: https://docs.amlok.io/llms.txt
> Use this file to discover all available pages before exploring further.

# List lien searches

> List authorized lien search records.

Required scope: `liens:read`. US UCC and Canadian provincial PPSA/RDPRM are separate products. Contract, jurisdiction, search type and redistribution rights must be established.

**Required scope:** `liens:read`

List authorized lien search records.

Required scope: `liens:read`. US UCC and Canadian provincial PPSA/RDPRM are separate products. Contract, jurisdiction, search type and redistribution rights must be established.

[Product scope](https://docs.amlok.io/api-reference/products-and-endpoints.md) · [Processing lifecycle](https://docs.amlok.io/api-reference/processing-lifecycle.md) · [Errors](https://docs.amlok.io/api-reference/errors.md)


## OpenAPI

````yaml openapi/amlok-v1.json GET /v1/lien-searches
openapi: 3.1.0
info:
  title: AMLOK API
  version: 1.4.2
  description: >-
    API reference for AMLOK 1.4.2, with example requests and responses.
    Configure your institution-issued environment URL before making requests.
  x-source-workbook: >-
    https://docs.google.com/spreadsheets/d/14pU2PLv9JDda8gAa1367hipa2oJQB260fIJthevrp10/edit
servers:
  - url: https://api.example.com
    description: Set the server URL to your institution-issued AMLOK environment URL.
security:
  - BearerAuth: []
tags:
  - name: Platform
    description: Platform operations.
  - name: Identity
    description: Identity operations.
  - name: Banking
    description: Banking operations.
  - name: Payments
    description: Payments operations.
  - name: Commerce
    description: Commerce operations.
  - name: Accounting
    description: Accounting operations.
  - name: Inventory
    description: Inventory operations.
  - name: Lending
    description: Lending operations.
  - name: Liens
    description: Liens operations.
  - name: Risk
    description: Risk operations.
  - name: Operations
    description: Operations operations.
  - name: Webhooks
    description: Webhooks operations.
  - name: Reporting
    description: Reporting operations.
paths:
  /v1/lien-searches:
    get:
      tags:
        - Liens
      summary: List lien searches
      description: >-
        List authorized lien search records.


        Required scope: `liens:read`. US UCC and Canadian provincial PPSA/RDPRM
        are separate products. Contract, jurisdiction, search type and
        redistribution rights must be established.
      operationId: EP105
      parameters:
        - name: X-Request-ID
          in: header
          required: false
          description: >-
            Optional caller correlation ID; the response includes AMLOK
            request_id.
          schema:
            type: string
          example: client-request-example
        - name: limit
          in: query
          required: false
          description: Page size. Default 100, maximum 200.
          schema:
            type: integer
            minimum: 1
            maximum: 200
            default: 100
          example: 100
        - name: cursor
          in: query
          required: false
          description: Opaque AMLOK cursor. Preserve the original filters.
          schema:
            type: string
          example: cur_example
        - name: subject_id
          in: query
          required: false
          description: Filter to one authorized business or person where applicable.
          schema:
            type: string
          example: biz_example
        - name: updated_from
          in: query
          required: false
          description: Inclusive normalized update time.
          schema:
            type: string
            format: date-time
        - name: updated_to
          in: query
          required: false
          description: Exclusive normalized update time.
          schema:
            type: string
            format: date-time
        - name: status
          in: query
          required: false
          description: Filter by this resource status.
          schema:
            $ref: '#/components/schemas/Enum_search_status'
        - name: fields
          in: query
          required: false
          description: >-
            Comma-separated top-level field names. Required identity and
            metadata always remain. Selected objects are complete; nested paths
            and wildcards are unsupported. Unknown fields return 400
            validation_error.
          schema:
            type: string
          example: id,object,updated_at
        - name: include
          in: query
          required: false
          description: >-
            Comma-separated optional expansions: provenance, missing_fields. No
            unrestricted graph traversal.
          schema:
            type: string
          example: provenance
        - name: snapshot_id
          in: query
          required: false
          description: >-
            Optional synchronization-checkpoint ID. Freezes this collection at
            the checkpoint boundary; cursor binds the snapshot. Unsupported or
            expired snapshots return 410.
          schema:
            type: string
      responses:
        '200':
          description: List authorized lien search records.
          headers:
            X-Request-ID:
              description: AMLOK response correlation identifier.
              schema:
                type: string
              example: req_example
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/LienSearchRead'
                  page:
                    $ref: '#/components/schemas/Page'
                  meta:
                    $ref: '#/components/schemas/ResponseMeta'
                required:
                  - data
                  - page
                  - meta
              examples:
                synthetic:
                  summary: Synthetic list lien searches
                  value:
                    data:
                      - id: lis_example
                        object: lien_search
                        subject_id: biz_example
                        created_at: '2026-10-22T13:00:00Z'
                        updated_at: '2026-10-22T14:00:00Z'
                        record_version: 1
                        source_refs: []
                        data_status: partial
                        missing_fields:
                          - field_path: jurisdictions_completed
                            reason: source_error
                            detail: US-NY search failed.
                        schema_version: 1.4.2
                        debtor_name: Example Manufacturing Inc.
                        debtor_type: business
                        search_type: name
                        jurisdictions_requested:
                          - US-DE
                          - US-NY
                        jurisdictions_completed:
                          - US-DE
                        status: partial
                        result_count: 0
                        lien_ids: []
                        stop_reason: null
                        processing_context:
                          product: insights
                          workflow_run_id: wfr_example
                    page:
                      next_cursor: null
                      has_more: false
                      limit: 100
                    meta:
                      request_id: req_example
                      schema_version: 1.4.2
                      generated_at: '2026-10-23T14:00:00Z'
                      data_status: partial
                projected:
                  summary: Metadata-only response with fields=id
                  value:
                    data:
                      - id: lis_example
                        object: lien_search
                        created_at: '2026-10-22T13:00:00Z'
                        updated_at: '2026-10-22T14:00:00Z'
                        record_version: 1
                        source_refs: []
                        data_status: partial
                        missing_fields:
                          - field_path: jurisdictions_completed
                            reason: source_error
                            detail: US-NY search failed.
                        schema_version: 1.4.2
                    page:
                      next_cursor: null
                      has_more: false
                      limit: 100
                    meta:
                      request_id: req_example
                      schema_version: 1.4.2
                      generated_at: '2026-10-23T14:00:00Z'
                      data_status: partial
        '400':
          $ref: '#/components/responses/Error400'
        '401':
          $ref: '#/components/responses/Error401'
        '403':
          $ref: '#/components/responses/Error403'
        '404':
          $ref: '#/components/responses/Error404'
        '410':
          $ref: '#/components/responses/Error410'
        '429':
          $ref: '#/components/responses/Error429'
        '500':
          $ref: '#/components/responses/Error500'
        '502':
          $ref: '#/components/responses/Error502'
        '503':
          $ref: '#/components/responses/Error503'
      security:
        - BearerAuth: []
      x-codeSamples:
        - lang: Shell
          label: cURL
          source: |-
            curl --request GET --fail-with-body --max-time 30 \
              "${AMLOK_API_BASE_URL}/v1/lien-searches?limit=100&cursor=cur_example&subject_id=biz_example&fields=id%2Cobject%2Cupdated_at&include=provenance" \
              --header "Authorization: Bearer ${AMLOK_API_KEY}" \
              --header "Accept: application/json"
        - lang: Python
          source: |-
            import os
            import requests

            base_url = os.environ["AMLOK_API_BASE_URL"].rstrip("/")
            headers = {'Accept': 'application/json'}
            headers["Authorization"] = "Bearer " + os.environ["AMLOK_API_KEY"]

            response = requests.request(
                "GET", base_url + "/v1/lien-searches?limit=100&cursor=cur_example&subject_id=biz_example&fields=id%2Cobject%2Cupdated_at&include=provenance",
                headers=headers, timeout=30, allow_redirects=False,
            )
            response.raise_for_status()
            print(response.json())
        - lang: JavaScript
          label: Node.js
          source: >-

            const baseUrl = process.env.AMLOK_API_BASE_URL;

            const apiKey = process.env.AMLOK_API_KEY;

            if (!baseUrl || !apiKey) throw new Error("Configure
            AMLOK_API_BASE_URL and AMLOK_API_KEY");

            const headers = {
              "Accept": "application/json"
            };

            headers.Authorization = `Bearer ${apiKey}`;

            const response = await fetch(baseUrl.replace(/\/$/, "") +
            "/v1/lien-searches?limit=100&cursor=cur_example&subject_id=biz_example&fields=id%2Cobject%2Cupdated_at&include=provenance",
            {
              method: "GET", headers,
              redirect: "error", signal: AbortSignal.timeout(30000),
            });

            if (!response.ok) throw new Error(`AMLOK returned HTTP
            ${response.status}`);

            console.log(await response.json());
components:
  schemas:
    Enum_search_status:
      type: string
      enum:
        - queued
        - running
        - completed
        - partial
        - failed
        - cancelled
    LienSearchRead:
      type: object
      properties:
        id:
          type: string
          description: >-
            Stable identifier scoped to the client tenant. Never use a provider
            ID as the public primary key.
          x-field-id: F0001
          x-classification: Confidential
          x-availability: Required when resource exists
        object:
          type: string
          const: lien_search
        subject_id:
          anyOf:
            - type: string
            - type: 'null'
          description: >-
            Business or person to which this record relates. Null for
            tenant-level configuration and unresolved subjects.
          x-field-id: F0003
          x-classification: Confidential
          x-availability: >-
            Source, module, country, consent and contracted permissions
            determine population.
        created_at:
          type: string
          format: date-time
          description: >-
            Time AMLOK first stored this resource. Preserve original evidence;
            do not invent missing values.
          x-field-id: F0004
          x-classification: Confidential
          x-availability: Required when resource exists
        updated_at:
          type: string
          format: date-time
          description: >-
            Time the normalized representation last changed. Preserve original
            evidence; do not invent missing values.
          x-field-id: F0005
          x-classification: Confidential
          x-availability: Required when resource exists
        observed_at:
          anyOf:
            - type: string
              format: date-time
            - type: 'null'
          description: >-
            Time the source was observed by AMLOK. Do not imply this is the
            economic event time.
          x-field-id: F0006
          x-classification: Confidential
          x-availability: >-
            Source, module, country, consent and contracted permissions
            determine population.
        effective_at:
          anyOf:
            - type: string
              format: date-time
            - type: 'null'
          description: >-
            Time the source states this version became valid. Preserve original
            evidence; do not invent missing values.
          x-field-id: F0007
          x-classification: Confidential
          x-availability: >-
            Source, module, country, consent and contracted permissions
            determine population.
        record_version:
          type: integer
          description: >-
            Monotonically increasing AMLOK version for this resource. Preserve
            original evidence; do not invent missing values.
          x-field-id: F0008
          x-classification: Confidential
          x-availability: Required when resource exists
        deleted_at:
          anyOf:
            - type: string
              format: date-time
            - type: 'null'
          description: >-
            Tombstone timestamp for a source or AMLOK deletion. Null for records
            not deleted; retain only under the configured policy.
          x-field-id: F0009
          x-classification: Confidential
          x-availability: >-
            Source, module, country, consent and contracted permissions
            determine population.
        source_refs:
          type: array
          items:
            $ref: '#/components/schemas/SourceRef'
          description: >-
            Evidence references contributing to this record. A known empty array
            is valid for a newly client-created record.
          x-field-id: F0010
          x-classification: Confidential
          x-availability: Required when resource exists
        field_provenance:
          anyOf:
            - type: array
              items:
                $ref: '#/components/schemas/FieldProvenance'
            - type: 'null'
          description: >-
            Field-level source, extraction, transformation and quality details.
            Preserve original evidence; do not invent missing values.
          x-field-id: F0011
          x-classification: Confidential
          x-availability: >-
            Source, module, country, consent and contracted permissions
            determine population.
        data_status:
          $ref: '#/components/schemas/Enum_data_status'
          description: >-
            Whether the requested resource is complete for its stated scope.
            Completeness is relative to declared fields, sources and time
            interval.
          x-field-id: F0012
          x-classification: Confidential
          x-availability: Required when resource exists
        missing_fields:
          type: array
          items:
            $ref: '#/components/schemas/MissingField'
          description: >-
            Unavailable field paths and their explicit reasons. Preserve
            original evidence; do not invent missing values.
          x-field-id: F0013
          x-classification: Confidential
          x-availability: Required when resource exists
        schema_version:
          type: string
          description: >-
            Contract version used to serialize this record. Preserve original
            evidence; do not invent missing values.
          x-field-id: F0014
          x-classification: Confidential
          x-availability: Required when resource exists
        client_reference:
          anyOf:
            - type: string
            - type: 'null'
          description: >-
            Optional caller-owned correlation identifier. Scoped to tenant;
            uniqueness only when explicitly contracted.
          x-field-id: F0015
          x-classification: Confidential
          x-availability: >-
            Source, module, country, consent and contracted permissions
            determine population.
        extensions:
          anyOf:
            - type: object
              additionalProperties: true
            - type: 'null'
          description: >-
            Namespaced extra provider fields without changing the core schema.
            Access-controlled and documented per provider; no provider tokens.
          x-field-id: F0016
          x-classification: Restricted
          x-availability: >-
            Source, module, country, consent and contracted permissions
            determine population.
        debtor_name:
          type: string
          description: >-
            Exact debtor name submitted for search. Preserve original evidence;
            do not invent missing values.
          x-field-id: F0810
          x-classification: Restricted
          x-availability: Required when resource exists
        debtor_entity_id:
          anyOf:
            - type: string
            - type: 'null'
          description: >-
            Resolved AMLOK debtor entity. Preserve original evidence; do not
            invent missing values.
          x-field-id: F0811
          x-classification: Confidential
          x-availability: >-
            US UCC and Canadian provincial PPSA/RDPRM are separate products.
            Contract, jurisdiction, search type and redistribution rights must
            be established.
        debtor_type:
          $ref: '#/components/schemas/Enum_party_type'
          description: >-
            Person or business search subject. Preserve original evidence; do
            not invent missing values.
          x-field-id: F0812
          x-classification: Confidential
          x-availability: Required when resource exists
        search_type:
          type: string
          description: >-
            Name, registration number, VIN or serial search when supported.
            Preserve original evidence; do not invent missing values.
          x-field-id: F0813
          x-classification: Confidential
          x-availability: Required when resource exists
        identifier:
          anyOf:
            - type: string
            - type: 'null'
          description: >-
            Search identifier if the chosen mode requires it. Preserve original
            evidence; do not invent missing values.
          x-field-id: F0814
          x-classification: Restricted
          x-availability: >-
            US UCC and Canadian provincial PPSA/RDPRM are separate products.
            Contract, jurisdiction, search type and redistribution rights must
            be established.
        jurisdictions_requested:
          type: array
          items:
            type: string
          description: >-
            Jurisdictions explicitly requested. Preserve original evidence; do
            not invent missing values.
          x-field-id: F0815
          x-classification: Confidential
          x-availability: Required when resource exists
        jurisdictions_completed:
          type: array
          items:
            type: string
          description: >-
            Jurisdictions actually completed. Preserve original evidence; do not
            invent missing values.
          x-field-id: F0816
          x-classification: Confidential
          x-availability: Required when resource exists
        status:
          $ref: '#/components/schemas/Enum_search_status'
          description: >-
            Search execution state. Preserve original evidence; do not invent
            missing values.
          x-field-id: F0817
          x-classification: Confidential
          x-availability: Required when resource exists
        searched_at:
          anyOf:
            - type: string
              format: date-time
            - type: 'null'
          description: >-
            Provider search execution time. Preserve original evidence; do not
            invent missing values.
          x-field-id: F0818
          x-classification: Confidential
          x-availability: >-
            US UCC and Canadian provincial PPSA/RDPRM are separate products.
            Contract, jurisdiction, search type and redistribution rights must
            be established.
        effective_through:
          anyOf:
            - type: string
              format: date-time
            - type: 'null'
          description: >-
            Registry's stated effective coverage time. Unknown does not mean
            current to the request time.
          x-field-id: F0819
          x-classification: Confidential
          x-availability: >-
            US UCC and Canadian provincial PPSA/RDPRM are separate products.
            Contract, jurisdiction, search type and redistribution rights must
            be established.
        is_certified:
          anyOf:
            - type: boolean
            - type: 'null'
          description: >-
            Whether an official certified search was returned. API search output
            is not automatically certified.
          x-field-id: F0820
          x-classification: Confidential
          x-availability: >-
            US UCC and Canadian provincial PPSA/RDPRM are separate products.
            Contract, jurisdiction, search type and redistribution rights must
            be established.
        search_logic:
          anyOf:
            - type: string
            - type: 'null'
          description: >-
            Provider or registry matching method. Preserve original evidence; do
            not invent missing values.
          x-field-id: F0821
          x-classification: Confidential
          x-availability: >-
            US UCC and Canadian provincial PPSA/RDPRM are separate products.
            Contract, jurisdiction, search type and redistribution rights must
            be established.
        result_count:
          anyOf:
            - type: integer
            - type: 'null'
          description: >-
            Number of returned filings within completed scope. Preserve original
            evidence; do not invent missing values.
          x-field-id: F0822
          x-classification: Confidential
          x-availability: >-
            US UCC and Canadian provincial PPSA/RDPRM are separate products.
            Contract, jurisdiction, search type and redistribution rights must
            be established.
        lien_ids:
          anyOf:
            - type: array
              items:
                type: string
            - type: 'null'
          description: >-
            Normalized filing results. Preserve original evidence; do not invent
            missing values.
          x-field-id: F0823
          x-classification: Confidential
          x-availability: >-
            US UCC and Canadian provincial PPSA/RDPRM are separate products.
            Contract, jurisdiction, search type and redistribution rights must
            be established.
        report_document_id:
          anyOf:
            - type: string
            - type: 'null'
          description: >-
            Original report or certificate. Preserve original evidence; do not
            invent missing values.
          x-field-id: F0824
          x-classification: Restricted
          x-availability: >-
            US UCC and Canadian provincial PPSA/RDPRM are separate products.
            Contract, jurisdiction, search type and redistribution rights must
            be established.
        stop_reason:
          anyOf:
            - type: string
              enum:
                - account_cancellation
                - parent_cancelled
                - consent_revoked
            - type: 'null'
        processing_context:
          $ref: '#/components/schemas/ProcessingContext'
      required:
        - id
        - object
        - created_at
        - updated_at
        - record_version
        - source_refs
        - data_status
        - missing_fields
        - schema_version
      title: LienSearchRead
      description: >-
        A search request with explicit debtor, jurisdiction and coverage.
        Population depends on source and tenant entitlement. Read
        representation: fields selects top-level domain fields. Required
        metadata is always returned. Selected nested objects retain their
        complete schema. Without fields, return the full authorized
        representation.
    Page:
      type: object
      properties:
        next_cursor:
          anyOf:
            - type: string
            - type: 'null'
          description: Opaque cursor for subsequent page; null after final page.
        has_more:
          type: boolean
          description: Whether more authorized records remain.
        limit:
          type: integer
          description: Applied result limit, from 1 to 200 in this contract.
          minimum: 1
          maximum: 200
      required:
        - has_more
        - limit
    ResponseMeta:
      type: object
      properties:
        request_id:
          type: string
          description: AMLOK request correlation ID.
        schema_version:
          type: string
          description: Serialization contract version.
        generated_at:
          type: string
          format: date-time
          description: Response generation time, not source data freshness.
        data_status:
          $ref: '#/components/schemas/Enum_data_status'
          description: Completeness of this response within its declared scope.
        coverage:
          anyOf:
            - $ref: '#/components/schemas/Coverage'
            - type: 'null'
          description: Requested and achieved source/time coverage.
      required:
        - request_id
        - schema_version
        - generated_at
        - data_status
    SourceRef:
      type: object
      properties:
        provider_id:
          type: string
          description: >-
            Inventory or supplemental provider identifier; AMLOK or CLIENT for
            internal evidence.
        connection_id:
          anyOf:
            - type: string
            - type: 'null'
          description: Authorized provider connection.
        source_record_id:
          anyOf:
            - type: string
            - type: 'null'
          description: >-
            Upstream record identifier scoped by provider, connection and record
            type.
        source_record_type:
          anyOf:
            - type: string
            - type: 'null'
          description: Provider object or report type.
        source_updated_at:
          anyOf:
            - type: string
              format: date-time
            - type: 'null'
          description: Source update time; do not replace with retrieval time.
        retrieved_at:
          type: string
          format: date-time
          description: Time AMLOK retrieved this evidence.
        document_id:
          anyOf:
            - type: string
            - type: 'null'
          description: Evidence document when applicable.
        source_api_version:
          anyOf:
            - type: string
            - type: 'null'
          description: Version of provider API/schema used.
      required:
        - provider_id
        - retrieved_at
    FieldProvenance:
      type: object
      properties:
        field_path:
          type: string
          description: Relative path in the normalized resource.
        source_ref_index:
          type: integer
          description: Zero-based index into source_refs.
        source_field_path:
          anyOf:
            - type: string
            - type: 'null'
          description: Actual field path or document locator.
        transformation_id:
          anyOf:
            - type: string
            - type: 'null'
          description: Versioned conversion/mapping rule.
        evidence_level:
          $ref: '#/components/schemas/Enum_evidence_level'
          description: Provenance class for the resulting value.
        confidence:
          anyOf:
            - type: string
              pattern: ^-?(?:0|[1-9][0-9]*)(?:\.[0-9]+)?$
              description: >-
                Exact decimal string in major units. Do not use binary
                floating-point arithmetic.
            - type: 'null'
          description: Calibrated extraction or matching confidence, if available.
        source_timezone:
          anyOf:
            - type: string
            - type: 'null'
          description: Original timezone where needed to interpret local time.
      required:
        - field_path
        - source_ref_index
        - evidence_level
    Enum_data_status:
      type: string
      enum:
        - complete
        - partial
        - unavailable
        - pending
    MissingField:
      type: object
      properties:
        field_path:
          type: string
          description: Unavailable relative field path.
        reason:
          $ref: '#/components/schemas/Enum_null_reason'
          description: Specific reason the field has no value.
        detail:
          anyOf:
            - type: string
            - type: 'null'
          description: Sanitized explanation useful to the caller.
      required:
        - field_path
        - reason
    Enum_party_type:
      type: string
      enum:
        - business
        - person
    ProcessingContext:
      oneOf:
        - type: object
          properties:
            product:
              const: insights
              type: string
            workflow_run_id:
              type: string
              minLength: 1
            subject_association_id:
              type: string
              minLength: 1
          required:
            - product
            - workflow_run_id
          additionalProperties: false
        - type: object
          properties:
            product:
              const: signal
              type: string
            monitoring_period_id:
              type: string
              minLength: 1
            subject_association_id:
              type: string
              minLength: 1
          required:
            - product
            - monitoring_period_id
          additionalProperties: false
      discriminator:
        propertyName: product
      description: >-
        Parent must belong to this workspace. Same-subject stages need no
        association. Only person KYC may target a different subject: supply an
        active subject_association_id linking that person to the parent
        business. Insights requires an unfinished authorized root run; Signal
        requires an active paid period. Stage scope, consent, association and
        workload are checked on every attempt. The parent business remains the
        billing and workload subject. No standalone service or extra charge.
    Coverage:
      type: object
      properties:
        requested_from:
          anyOf:
            - type: string
              format: date
            - type: 'null'
          description: Inclusive start requested.
        requested_to:
          anyOf:
            - type: string
              format: date
            - type: 'null'
          description: Exclusive end requested.
        available_from:
          anyOf:
            - type: string
              format: date
            - type: 'null'
          description: Earliest actual coverage.
        available_to:
          anyOf:
            - type: string
              format: date
            - type: 'null'
          description: Exclusive end of actual coverage.
        source_ids:
          type: array
          items:
            type: string
          description: Sources actually contributing.
        missing_intervals:
          type: array
          items:
            $ref: '#/components/schemas/Interval'
          description: Known gaps within requested scope.
        jurisdictions_completed:
          anyOf:
            - type: array
              items:
                type: string
            - type: 'null'
          description: Completed geographic search scope when applicable.
      required:
        - source_ids
        - missing_intervals
    ErrorEnvelope:
      type: object
      properties:
        error:
          $ref: '#/components/schemas/Error'
        meta:
          $ref: '#/components/schemas/ResponseMeta'
      required:
        - error
        - meta
    Enum_evidence_level:
      type: string
      enum:
        - source_record
        - document_extracted
        - client_asserted
        - derived
        - model_inferred
    Enum_null_reason:
      type: string
      enum:
        - not_provided
        - not_supported
        - not_authorized
        - not_applicable
        - pending
        - redacted
        - source_error
        - invalid
        - insufficient_history
    Interval:
      type: object
      properties:
        from:
          type: string
          format: date
          description: Inclusive interval start.
        to:
          type: string
          format: date
          description: Exclusive interval end.
      required:
        - from
        - to
    Error:
      type: object
      properties:
        code:
          type: string
          description: Stable machine-readable error code.
        message:
          type: string
          description: Safe caller-facing explanation.
        field:
          anyOf:
            - type: string
            - type: 'null'
          description: Invalid request field when relevant.
        retryable:
          type: boolean
          description: Whether retry may succeed without changing the request.
        request_id:
          type: string
          description: Correlation identifier for support.
      required:
        - code
        - message
        - retryable
        - request_id
  responses:
    Error400:
      description: Request failed. Inspect error.code and error.retryable.
      headers:
        X-Request-ID:
          description: AMLOK response correlation identifier.
          schema:
            type: string
          example: req_example
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
          examples:
            invalid_request:
              summary: invalid_request
              value:
                error:
                  code: invalid_request
                  message: Malformed input, unknown parameter or incompatible filters.
                  retryable: false
                  request_id: req_example
                meta:
                  request_id: req_example
                  schema_version: 1.4.2
                  generated_at: '2026-10-23T14:00:00Z'
                  data_status: complete
            unsupported_parameter:
              summary: unsupported_parameter
              value:
                error:
                  code: unsupported_parameter
                  message: Historical query or filter not implemented on this resource.
                  retryable: false
                  request_id: req_example
                meta:
                  request_id: req_example
                  schema_version: 1.4.2
                  generated_at: '2026-10-23T14:00:00Z'
                  data_status: complete
            validation_error:
              summary: validation_error
              value:
                error:
                  code: validation_error
                  message: >-
                    A field, projection, or request value is invalid. Inspect
                    error.field.
                  retryable: false
                  request_id: req_example
                meta:
                  request_id: req_example
                  schema_version: 1.4.2
                  generated_at: '2026-10-23T14:00:00Z'
                  data_status: complete
    Error401:
      description: Request failed. Inspect error.code and error.retryable.
      headers:
        X-Request-ID:
          description: AMLOK response correlation identifier.
          schema:
            type: string
          example: req_example
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
          examples:
            unauthenticated:
              summary: unauthenticated
              value:
                error:
                  code: unauthenticated
                  message: Missing, expired or invalid credential.
                  retryable: false
                  request_id: req_example
                meta:
                  request_id: req_example
                  schema_version: 1.4.2
                  generated_at: '2026-10-23T14:00:00Z'
                  data_status: complete
    Error403:
      description: Request failed. Inspect error.code and error.retryable.
      headers:
        X-Request-ID:
          description: AMLOK response correlation identifier.
          schema:
            type: string
          example: req_example
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
          examples:
            forbidden:
              summary: forbidden
              value:
                error:
                  code: forbidden
                  message: Tenant scope or field/product entitlement missing.
                  retryable: false
                  request_id: req_example
                meta:
                  request_id: req_example
                  schema_version: 1.4.2
                  generated_at: '2026-10-23T14:00:00Z'
                  data_status: complete
    Error404:
      description: Request failed. Inspect error.code and error.retryable.
      headers:
        X-Request-ID:
          description: AMLOK response correlation identifier.
          schema:
            type: string
          example: req_example
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
          examples:
            not_found:
              summary: not_found
              value:
                error:
                  code: not_found
                  message: Record does not exist or is not visible in this tenant.
                  retryable: false
                  request_id: req_example
                meta:
                  request_id: req_example
                  schema_version: 1.4.2
                  generated_at: '2026-10-23T14:00:00Z'
                  data_status: complete
    Error410:
      description: Request failed. Inspect error.code and error.retryable.
      headers:
        X-Request-ID:
          description: AMLOK response correlation identifier.
          schema:
            type: string
          example: req_example
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
          examples:
            cursor_expired:
              summary: cursor_expired
              value:
                error:
                  code: cursor_expired
                  message: >-
                    The synchronization cursor has expired. Begin a new
                    synchronization checkpoint and rebuild the collection
                    snapshot.
                  retryable: false
                  request_id: req_example
                meta:
                  request_id: req_example
                  schema_version: 1.4.2
                  generated_at: '2026-10-23T14:00:00Z'
                  data_status: complete
    Error429:
      description: Request failed. Inspect error.code and error.retryable.
      headers:
        X-Request-ID:
          description: AMLOK response correlation identifier.
          schema:
            type: string
          example: req_example
        Retry-After:
          description: >-
            Delay in seconds or an HTTP-date. The example is illustrative, not a
            contractual quota.
          schema:
            type: string
          example: '30'
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
          examples:
            rate_limited:
              summary: rate_limited
              value:
                error:
                  code: rate_limited
                  message: AMLOK tenant quota or upstream throttle.
                  retryable: true
                  request_id: req_example
                meta:
                  request_id: req_example
                  schema_version: 1.4.2
                  generated_at: '2026-10-23T14:00:00Z'
                  data_status: complete
    Error500:
      description: Request failed. Inspect error.code and error.retryable.
      headers:
        X-Request-ID:
          description: AMLOK response correlation identifier.
          schema:
            type: string
          example: req_example
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
          examples:
            internal_error:
              summary: internal_error
              value:
                error:
                  code: internal_error
                  message: Unexpected AMLOK processing error.
                  retryable: false
                  request_id: req_example
                meta:
                  request_id: req_example
                  schema_version: 1.4.2
                  generated_at: '2026-10-23T14:00:00Z'
                  data_status: complete
    Error502:
      description: Request failed. Inspect error.code and error.retryable.
      headers:
        X-Request-ID:
          description: AMLOK response correlation identifier.
          schema:
            type: string
          example: req_example
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
          examples:
            source_error:
              summary: source_error
              value:
                error:
                  code: source_error
                  message: Upstream returned invalid or failed data.
                  retryable: false
                  request_id: req_example
                meta:
                  request_id: req_example
                  schema_version: 1.4.2
                  generated_at: '2026-10-23T14:00:00Z'
                  data_status: complete
    Error503:
      description: Request failed. Inspect error.code and error.retryable.
      headers:
        X-Request-ID:
          description: AMLOK response correlation identifier.
          schema:
            type: string
          example: req_example
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
          examples:
            source_unavailable:
              summary: source_unavailable
              value:
                error:
                  code: source_unavailable
                  message: Required source temporarily unavailable.
                  retryable: true
                  request_id: req_example
                meta:
                  request_id: req_example
                  schema_version: 1.4.2
                  generated_at: '2026-10-23T14:00:00Z'
                  data_status: complete
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API key
      description: >-
        Server-to-server API key bound to exactly one workspace, institution
        tenant and environment. No caller-supplied workspace override is
        accepted. Do not use in public browser code.

````

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