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

# List connector types

> Returns the connector types the engine registry has actually registered for this deployment, each tagged with a backend-derived category ('database' or 'rest'). The list reflects the live registry — only the connectors registered at boot appear, with no static enum of all possible types. Aggregator-vendor types (Pluggy/Belvo) are excluded — they are provisioned through the aggregator-connections surface.



## OpenAPI

````yaml en/openapi/v3-current/matcher.yaml get /v1/discovery/connector-types
openapi: 3.1.0
info:
  title: Matcher APIs
  description: >-
    Complete API reference for the Matcher reconciliation engine, providing
    automated transaction matching between Midaz Ledger and external systems.
  version: 4.1.0
  license:
    name: Elastic License 2.0
    url: https://www.elastic.co/licensing/elastic-license
servers:
  - url: https://matcher.sandbox.lerian.net
security: []
paths:
  /v1/discovery/connector-types:
    get:
      tags:
        - Discovery
      summary: List connector types
      description: >-
        Returns the connector types the engine registry has actually registered
        for this deployment, each tagged with a backend-derived category
        ('database' or 'rest'). The list reflects the live registry — only the
        connectors registered at boot appear, with no static enum of all
        possible types. Aggregator-vendor types (Pluggy/Belvo) are excluded —
        they are provisioned through the aggregator-connections surface.
      operationId: listDiscoveryConnectorTypes
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ConnectorTypeListResponse'
          description: OK
        default:
          content:
            application/problem+json:
              schema:
                $ref: '#/components/schemas/Detail'
          description: Error
      security:
        - BearerAuth: []
components:
  schemas:
    ConnectorTypeListResponse:
      additionalProperties: false
      properties:
        types:
          description: >-
            Connector types registered in the live engine for this deployment,
            deterministically ordered
          items:
            $ref: '#/components/schemas/ConnectorTypeResponse'
          type:
            - array
            - 'null'
      required:
        - types
      type: object
    Detail:
      additionalProperties: false
      properties:
        code:
          description: >-
            Stable, machine-readable domain error code scoped to the emitting
            service (format: <SERVICE>-NNNN).
          examples:
            - ERR-0001
          type: string
        detail:
          description: >-
            A human-readable explanation specific to this occurrence of the
            problem.
          examples:
            - Property foo is required but is missing.
          type: string
        errors:
          description: Optional list of individual error details
          items:
            $ref: '#/components/schemas/ErrorDetail'
          type:
            - array
            - 'null'
        instance:
          description: >-
            A URI reference that identifies the specific occurrence of the
            problem.
          examples:
            - https://example.com/error-log/abc123
          format: uri
          type: string
        status:
          description: HTTP status code
          examples:
            - 400
          format: int64
          type: integer
        title:
          description: >-
            A short, human-readable summary of the problem type. This value
            should not change between occurrences of the error.
          examples:
            - Bad Request
          type: string
        type:
          default: about:blank
          description: A URI reference to human-readable documentation for the error.
          examples:
            - https://example.com/errors/example
          format: uri
          type: string
      type: object
    ConnectorTypeResponse:
      additionalProperties: false
      properties:
        category:
          description: 'Backend-derived taxonomy bucket: ''database'' or ''rest'''
          enum:
            - database
            - rest
          examples:
            - database
          type: string
        type:
          description: Canonical engine datasource-type token
          examples:
            - POSTGRESQL
          type: string
      required:
        - type
        - category
      type: object
    ErrorDetail:
      additionalProperties: false
      properties:
        location:
          description: >-
            Where the error occurred, e.g. 'body.items[3].tags' or
            'path.thing-id'
          type: string
        message:
          description: Error message text
          type: string
        value:
          description: The value at the given location
      type: object
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: 'Bearer token authentication (format: "Bearer {token}")'

````