Letta Tag API

openapi: 3.0.3
info:
  title: Letta Agent Templates Tag API
  description: The Letta API creates and operates stateful AI agents whose memory - core context blocks and archival vector memory - persists across sessions. It configures the tools, data sources, identities, and multi-agent groups an agent uses, sends and streams messages to agents, and inspects the runs, jobs, and steps behind every agent response. The same OpenAPI-documented interface is served by the managed Letta Cloud API and by the open-source, self-hostable Letta server. All requests require a Bearer API key.
  version: 1.0.0
  contact:
    name: Letta
    url: https://www.letta.com
  license:
    name: Apache-2.0
    url: https://github.com/letta-ai/letta/blob/main/LICENSE
servers:
- url: https://api.letta.com/v1
  description: Letta Cloud
- url: http://localhost:8283/v1
  description: Self-hosted (default local port)
security:
- bearerAuth: []
tags:
- name: Tag
paths:
  /v1/tags/:
    get:
      tags:
      - Tag
      summary: List Tags
      description: Get the list of all tags (from agents and blocks) that have been created.
      parameters:
      - name: before
        in: query
        required: false
        description: Tag cursor for pagination. Returns tags that come before this tag in the specified sort order
        schema:
          type: string
      - name: after
        in: query
        required: false
        description: Tag cursor for pagination. Returns tags that come after this tag in the specified sort order
        schema:
          type: string
      - name: limit
        in: query
        required: false
        description: Maximum number of tags to return
        schema:
          type: string
          default: 50
      - name: order
        in: query
        required: false
        description: Sort order for tags. 'asc' for alphabetical order, 'desc' for reverse alphabetical order
        schema:
          type: string
          default: asc
          enum:
          - asc
          - desc
      - name: order_by
        in: query
        required: false
        description: Field to sort by
        schema:
          type: string
          default: name
      - name: query_text
        in: query
        required: false
        description: Filter tags by text search. Deprecated, please use name field instead
        schema:
          type: string
      - name: name
        in: query
        required: false
        description: Filter tags by name
        schema:
          type: string
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                type: object
                additionalProperties: true
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  responses:
    Unauthorized:
      description: Missing or invalid Bearer API key.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    Error:
      type: object
      properties:
        error:
          type: object
          properties:
            message:
              type: string
            code:
              type: string
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: 'API key created at https://app.letta.com/api-keys, passed as `Authorization: Bearer YOUR_API_KEY`.'