openapi: 3.1.0
info:
  title: Bem Buckets Entity Synonyms API
  version: 1.0.0
  description: "Buckets are named partitions of the knowledge graph within an\naccount+environment. Entities, mentions, and relations are scoped to a\nbucket so a single account+environment can host multiple isolated graphs\n— for example one per data source or workspace.\n\nEvery account+environment has exactly one **default** bucket, used by\nunscoped flows. The default bucket can be renamed but never deleted.\n\nUse these endpoints to create, list, fetch, rename, and delete buckets:\n\n- **`POST /v3/buckets`** creates a non-default bucket.\n- **`GET /v3/buckets`** lists buckets with cursor pagination\n  (`startingAfter` / `endingBefore` over `bucketID`).\n- **`PATCH /v3/buckets/{bucketID}`** updates `name` and/or `description`.\n- **`DELETE /v3/buckets/{bucketID}`** soft-deletes a bucket. A non-empty\n  bucket is rejected with `409 Conflict` unless `?cascade=true` is\n  passed; the default bucket can never be deleted."
servers:
- url: https://api.bem.ai
  description: US Region API
  variables: {}
- url: https://api.eu1.bem.ai
  description: EU Region API
  variables: {}
security:
- API Key: []
tags:
- name: Entity Synonyms
  description: "Manage the human-readable surface forms (synonyms) attached to a canonical\nentity. Synonyms feed the matcher's exact-match path, so adding the right\nsynonyms improves cross-document entity resolution.\n\n- **`POST /v3/entities/{id}/synonyms`** attaches a `customer_defined`\n  synonym. If the same normalized form already exists as an `extracted`\n  synonym, it is upgraded to `customer_defined` (so the matcher weights it\n  higher); an existing customer/SME synonym is returned unchanged.\n- **`DELETE /v3/entities/{id}/synonyms/{synonymID}`** soft-deletes a\n  synonym. Only `customer_defined` and `sme_approved` synonyms are\n  deletable; `extracted` synonyms are resolver-owned and the request is\n  rejected with `409 Conflict`.\n\nA merged-away entity id transparently resolves to its surviving canonical\nentity, so a synonym added to a stale id lands on the entity that persists."
paths:
  /v3/entities/{id}/synonyms:
    post:
      operationId: v3-add-entity-synonym
      summary: Add a Synonym to an Entity
      parameters:
      - name: id
        in: path
        required: true
        description: Entity public ID (`ent_...`). A merged-away id resolves to the surviving entity.
        schema:
          type: string
      - name: bucket
        in: query
        required: false
        description: 'Optional bucket public ID (`bkt_...`) to scope the entity lookup to one

          bucket. Omit for the unscoped (all account+environment) view.'
        schema:
          type: string
        explode: false
      responses:
        '201':
          description: The request has succeeded and a new resource has been created as a result.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EntitySynonymV3'
      tags:
      - Entity Synonyms
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/AddEntitySynonymRequestV3'
            examples:
              Add a synonym:
                summary: Add a synonym
                value:
                  text: ACME Corporation
                  locale: en-US
  /v3/entities/{id}/synonyms/{synonymID}:
    delete:
      operationId: v3-remove-entity-synonym
      summary: Remove a Synonym from an Entity
      parameters:
      - name: id
        in: path
        required: true
        description: Entity public ID (`ent_...`). A merged-away id resolves to the surviving entity.
        schema:
          type: string
      - name: synonymID
        in: path
        required: true
        description: Synonym public ID (`esn_...`).
        schema:
          type: string
      - name: bucket
        in: query
        required: false
        description: 'Optional bucket public ID (`bkt_...`) to scope the entity lookup to one

          bucket. Omit for the unscoped (all account+environment) view.'
        schema:
          type: string
        explode: false
      responses:
        '204':
          description: 'There is no content to send for this request, but the headers may be useful. '
      tags:
      - Entity Synonyms
components:
  schemas:
    EntitySynonymV3:
      type: object
      required:
      - synonymID
      - text
      - normalizedText
      - source
      - createdAt
      properties:
        synonymID:
          type: string
          description: Stable public identifier for the synonym (`esn_...`).
        text:
          type: string
          description: The human-readable synonym as authored.
        normalizedText:
          type: string
          description: Lowercased, whitespace-folded form of `text`.
        source:
          type: string
          enum:
          - extracted
          - customer_defined
          - sme_approved
          description: 'Provenance of the synonym. `customer_defined` and `sme_approved` synonyms

            are deletable; `extracted` synonyms are resolver-owned and cannot be

            deleted.'
        locale:
          type: string
          description: Optional BCP 47 locale tag, when one was supplied.
        createdAt:
          type: string
          format: date-time
          description: Creation timestamp of the synonym (RFC 3339).
      description: One synonym attached to an entity.
    AddEntitySynonymRequestV3:
      type: object
      required:
      - text
      properties:
        text:
          type: string
          description: 'The human-readable synonym surface form to attach (e.g. `Acme Corp`,

            `ACME`). It is normalized (lowercased, whitespace-folded) for the

            uniqueness key and the matcher''s exact-match path.'
        locale:
          type: string
          description: Optional BCP 47 locale tag (e.g. `en-US`) for language-specific synonyms.
      description: Request body for `POST /v3/entities/{id}/synonyms`.
  securitySchemes:
    API Key:
      type: apiKey
      in: header
      name: x-api-key
      description: Authenticate using API Key in request header