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Memories are knowledge Atlas carries across interactions. User memories capture personal preferences, domain background, and workflow conventions. Entity memories capture hardware-specific context attached to nodes in the metagraph. Entity memory endpoints are documented under Metagraph. See Adding a Personal Skill & System Memory for a workflow guide.

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Endpoints

MethodPathDescription
GET/memoriesGet current user memories
PUT/memoriesSet user memories
GET/memories/historyGet memory version history
POST/memories/restoreRestore a previous memory version

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Get memories

GET /memories Returns the current memory content for the authenticated user. Example request: 
curl "$ATLAS_URL/api/v1/memories" \
  -H "Authorization: Bearer $ATLAS_TOKEN"
Response fields:
FieldTypeNullableDescription
contentstringNoMarkdown-formatted memory content
updated_atstringYesISO 8601 timestamp of the last update
Example response: 
{
  "content": "I work on power systems. Always flag voltage anomalies as high priority. Team uses dB scale for RF measurements.",
  "updated_at": "2026-04-13T09:00:00.000000"
}

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Set memories

PUT /memories Replaces the current memory content entirely. Memory writes are versioned automatically. Request body:
FieldRequiredTypeDescription
contentYesstringFull memory content (max 10,000 characters, markdown supported)
Example request: 
curl -X PUT "$ATLAS_URL/api/v1/memories" \
  -H "Authorization: Bearer $ATLAS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "content": "I work on power systems. Always flag voltage anomalies as high priority. Team uses dB scale for RF measurements."
  }'
Returns the updated memory object with the same fields as Get memories.

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Get version history

GET /memories/history Returns all previous versions of the user’s memory document. Example request: 
curl "$ATLAS_URL/api/v1/memories/history" \
  -H "Authorization: Bearer $ATLAS_TOKEN"
Response fields (array):
FieldTypeNullableDescription
versionintegerNoVersion number (1-indexed)
contentstringNoMemory content at this version
updated_atstringNoISO 8601 timestamp
restored_from_versionintegerYesVersion this was restored from, if applicable
Example response: 
[
  {
    "version": 2,
    "content": "I work on power systems. Always flag voltage anomalies as high priority. Team uses dB scale for RF measurements.",
    "updated_at": "2026-04-13T09:00:00.000000",
    "restored_from_version": null
  },
  {
    "version": 1,
    "content": "I work on power systems.",
    "updated_at": "2026-04-12T08:00:00.000000",
    "restored_from_version": null
  }
]

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Restore a version

POST /memories/restore Rolls back the user’s memory to a previous version. The restore creates a new version entry rather than overwriting history. Request body:
FieldRequiredTypeDescription
versionYesintegerVersion number to restore (must be ≥ 1)
Example request: 
curl -X POST "$ATLAS_URL/api/v1/memories/restore" \
  -H "Authorization: Bearer $ATLAS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"version": 1}'
Returns the restored memory object with the same fields as Get memories.