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

# List types

> Returns every type registered in the tenant — the core type catalogue plus any custom types registered via `POST /types`. Each entry carries the type identifier, parent (for inheriting types), fields, optional `display_hints`, `merge_policy`, and `version_policy`. Use as the manifest a custom-type-aware client reads at startup. See [Types](/concepts/types).



## OpenAPI

````yaml /openapi.json get /types
openapi: 3.1.0
info:
  title: Marfa API
  version: 4.2.0
  description: Typed data layer for structured personal data
servers: []
security: []
paths:
  /types:
    get:
      tags:
        - Types
      summary: List types
      description: >-
        Returns every type registered in the tenant — the core type catalogue
        plus any custom types registered via `POST /types`. Each entry carries
        the type identifier, parent (for inheriting types), fields, optional
        `display_hints`, `merge_policy`, and `version_policy`. Use as the
        manifest a custom-type-aware client reads at startup. See
        [Types](/concepts/types).
      responses:
        '200':
          description: List of all type schemas
          content:
            application/json:
              schema:
                type: array
                items:
                  type: object
                  properties:
                    id:
                      type: string
                    label:
                      type: string
                    description:
                      type: string
                    parent:
                      type: string
                    fields:
                      type: object
                      additionalProperties:
                        nullable: true
                    version:
                      type: number
                    display_hints:
                      type: object
                      properties:
                        title_field:
                          type: string
                        body_field:
                          type: string
                    version_policy:
                      type: object
                      properties:
                        recent_days:
                          type: number
                        daily_snapshot_days:
                          type: number
                        weekly_snapshot_days:
                          type: number
                        max_versions:
                          type: number
                    merge_policy:
                      type: object
                      properties:
                        fields:
                          type: object
                          additionalProperties:
                            type: string
                            enum:
                              - last_writer_wins
                              - keep_both_copies
                        default:
                          type: string
                          enum:
                            - last_writer_wins
                            - keep_both_copies
                  required:
                    - id
                    - fields
                    - version
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      code:
                        type: string
                        enum:
                          - unauthorized
                      message:
                        type: string
                      details:
                        type: object
                        additionalProperties:
                          nullable: true
                    required:
                      - code
                      - message
                required:
                  - error
      security:
        - bearerAuth: []
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API Key or OAuth Token
      description: Pass an API key (marfa_k1_...) or OAuth access token (marfa_at_...)

````