openapi: 3.2.0
info:
  description: emem is shared memory for AI agents working together in the real world.
  license:
    name: Apache-2.0
  title: emem Artifacts API
  version: 2.4.0
  x-emem-surface-asymmetry:
    memory_notes: MCP only
    reach_them_at: POST /mcp, method tools/call
    read_side_is_here:
    - /v1/memory/search
    - /v1/memory/sse
    - /memories/{path}
    tools:
    - emem_memory_create
    - emem_memory_view
    - emem_memory_delete
    - emem_memory_rename
    - emem_memory_str_replace
    - emem_memory_supersede
    why_not_here: These write the agent correspondence plane, which is prose and untrusted-by-declaration. It is deliberately not part of the REST fact surface, and the two planes are kept apart rather than merged for convenience.
servers:
- description: Hosted instance (HTTPS-only)
  url: https://emem.dev
tags:
- name: Artifacts
paths:
  /v1/artifacts/{cid}:
    get:
      description: 'raw canonical grid bytes by artifact cid, Cache-Control immutable (content-addressed bytes never change). A 404 is typed and says how to rebuild: eviction is a design property (the derivation record persists and pins the scene, recipe, and geometry), never data loss.'
      operationId: emem_artifact_bytes
      responses:
        '200':
          description: application/x.emem-grid-f32.v1 bytes
        '404':
          description: evicted or unknown; the derivation record pins the rebuild
      summary: raw canonical grid bytes by artifact cid, Cache-Control immutable…
      tags:
      - Artifacts