openapi: 3.0.1
info:
  title: Pieces OS Local Applications Well Known API
  description: The Pieces OS local REST API. Pieces OS is an on-device process that runs on the developer's machine and serves this API over the loopback interface at http://localhost:1000. It backs the Pieces Copilot, saved snippets (assets), local and cloud model management, and workspace context, and is the source of the official OpenAPI-generated SDKs. This document captures the core documented resources (assets, formats, copilot/QGPT, conversations, models, applications, user, and well-known). For the complete machine-generated specification see the upstream pieces-os-client-openapi-spec repository.
  termsOfService: https://pieces.app/legal/terms
  contact:
    name: Pieces Support
    url: https://docs.pieces.app
  version: '1.0'
servers:
- url: http://localhost:1000
  description: Default on-device Pieces OS port (loopback only).
- url: http://localhost:5323
  description: Alternate on-device Pieces OS port.
tags:
- name: Well Known
  description: Health and version of the local Pieces OS instance.
paths:
  /.well-known/health:
    get:
      operationId: getWellKnownHealth
      tags:
      - Well Known
      summary: Health check for the local Pieces OS instance.
      responses:
        '200':
          description: OK
          content:
            text/plain:
              schema:
                type: string
  /.well-known/version:
    get:
      operationId: getWellKnownVersion
      tags:
      - Well Known
      summary: Returns the running Pieces OS version.
      responses:
        '200':
          description: OK
          content:
            text/plain:
              schema:
                type: string