openapi: 3.0.1
info:
  title: Basis Theory 3D Secure Tokens API
  description: The Basis Theory API is a PCI Level 1 compliant tokenization and data vault platform. It lets developers tokenize, store, and use sensitive data - cardholder data, PII, PHI, and bank account numbers - without that data touching their own systems. The API exposes Tokens, batch Tokenize / Detokenize, Applications, the detokenizing Proxy (pre-configured and ephemeral), serverless Reactors, 3D Secure, Tenants, Logs, and Webhooks. All requests are authenticated with a `BT-API-KEY` request header.
  termsOfService: https://basistheory.com/terms
  contact:
    name: Basis Theory Support
    email: support@basistheory.com
    url: https://developers.basistheory.com
  version: '1.0'
servers:
- url: https://api.basistheory.com
  description: Production environment (PRODUCTION tenants)
- url: https://api.test.basistheory.com
  description: Test environment (TEST tenants)
security:
- ApiKey: []
tags:
- name: Tokens
  description: Create, retrieve, search, update, and delete tokens.
paths:
  /tokens:
    post:
      operationId: createToken
      tags:
      - Tokens
      summary: Create a token
      description: Tokenizes a single piece of sensitive data and stores it in the vault.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateTokenRequest'
      responses:
        '201':
          description: The created token.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Token'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '422':
          $ref: '#/components/responses/ValidationProblem'
  /v2/tokens:
    get:
      operationId: listTokens
      tags:
      - Tokens
      summary: List tokens
      description: Returns a cursor-paginated list of tokens for the tenant.
      parameters:
      - name: id
        in: query
        description: Filter by one or more token ids.
        schema:
          type: array
          items:
            type: string
      - name: type
        in: query
        description: Filter by one or more token types.
        schema:
          type: array
          items:
            type: string
      - name: start
        in: query
        description: Cursor for the next page of results.
        schema:
          type: string
      - name: size
        in: query
        description: Number of results to return per page.
        schema:
          type: integer
          default: 20
      responses:
        '200':
          description: A paginated list of tokens.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TokenCursorPaginatedList'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
  /tokens/{id}:
    get:
      operationId: getToken
      tags:
      - Tokens
      summary: Get a token
      parameters:
      - $ref: '#/components/parameters/TokenId'
      responses:
        '200':
          description: The requested token.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Token'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
    patch:
      operationId: updateToken
      tags:
      - Tokens
      summary: Update a token
      description: Partially updates a token using JSON merge patch semantics.
      parameters:
      - $ref: '#/components/parameters/TokenId'
      requestBody:
        required: true
        content:
          application/merge-patch+json:
            schema:
              $ref: '#/components/schemas/UpdateTokenRequest'
      responses:
        '200':
          description: The updated token.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Token'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
        '422':
          $ref: '#/components/responses/ValidationProblem'
    delete:
      operationId: deleteToken
      tags:
      - Tokens
      summary: Delete a token
      parameters:
      - $ref: '#/components/parameters/TokenId'
      responses:
        '204':
          description: The token was deleted.
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  responses:
    Forbidden:
      description: The application lacks the required permission.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ProblemDetails'
    NotFound:
      description: The requested resource was not found.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ProblemDetails'
    ValidationProblem:
      description: The request failed validation.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ValidationProblemDetails'
    Unauthorized:
      description: The BT-API-KEY header is missing or invalid.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ProblemDetails'
  schemas:
    Token:
      type: object
      properties:
        id:
          type: string
        tenant_id:
          type: string
          format: uuid
        type:
          type: string
          description: The token type, e.g. token, card, bank, social_security_number.
        data:
          description: The token data (masked unless detokenized).
        mask:
          description: The masking expression applied to the data.
        fingerprint:
          type: string
        fingerprint_expression:
          type: string
        containers:
          type: array
          items:
            type: string
        metadata:
          type: object
          additionalProperties:
            type: string
        search_indexes:
          type: array
          items:
            type: string
        expires_at:
          type: string
          format: date-time
        created_by:
          type: string
          format: uuid
        created_at:
          type: string
          format: date-time
        modified_at:
          type: string
          format: date-time
    CreateTokenRequest:
      type: object
      required:
      - type
      - data
      properties:
        id:
          type: string
        type:
          type: string
        data:
          description: The sensitive value to tokenize. May be a primitive or an object.
        mask:
          description: A masking expression used to reveal a non-sensitive portion of the data.
        containers:
          type: array
          items:
            type: string
        metadata:
          type: object
          additionalProperties:
            type: string
        search_indexes:
          type: array
          items:
            type: string
        fingerprint_expression:
          type: string
        deduplicate_token:
          type: boolean
        expires_at:
          type: string
          format: date-time
    ValidationProblemDetails:
      type: object
      properties:
        title:
          type: string
        status:
          type: integer
        errors:
          type: object
          additionalProperties:
            type: array
            items:
              type: string
    UpdateTokenRequest:
      type: object
      properties:
        data: {}
        mask: {}
        metadata:
          type: object
          additionalProperties:
            type: string
        search_indexes:
          type: array
          items:
            type: string
        fingerprint_expression:
          type: string
    CursorPagination:
      type: object
      properties:
        next:
          type: string
        previous:
          type: string
    ProblemDetails:
      type: object
      properties:
        title:
          type: string
        status:
          type: integer
        detail:
          type: string
    TokenCursorPaginatedList:
      type: object
      properties:
        pagination:
          $ref: '#/components/schemas/CursorPagination'
        data:
          type: array
          items:
            $ref: '#/components/schemas/Token'
  parameters:
    TokenId:
      name: id
      in: path
      required: true
      description: The unique identifier of the token.
      schema:
        type: string
  securitySchemes:
    ApiKey:
      type: apiKey
      in: header
      name: BT-API-KEY
      description: Authenticate every request with a Basis Theory Application key supplied in the BT-API-KEY request header.