Documentation Index Fetch the complete documentation index at: https://wuweism.com/llms.txt
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Two endpoints manage causal chat sessions: one to list all sessions associated with your account, and one to retrieve the full message history for a specific session.
List sessions GET /api/causal-chat/sessions
Returns all sessions belonging to the authenticated user, ordered by most recently updated.
Authentication Required. Include a session cookie or Authorization: Bearer <token> header.
Response Status: 200 OKContent-Type: application/jsonArray of session summary objects. UUID uniquely identifying the session. Use this value as sessionId when sending messages or fetching session messages.
Human-readable title derived from the first question in the session.
ISO 8601 timestamp of the most recent activity in the session.
Primary domain label assigned during the session’s first causal analysis, e.g. "neuroscience". May be null if classification has not yet completed.
Example curl --request GET \ --url https://wuweism.com/api/causal-chat/sessions \ --header 'Authorization: Bearer <token>'
{ "sessions" : [ { "id" : "3f2504e0-4f89-11d3-9a0c-0305e82c3301" , "title" : "Does cortisol exposure causally increase hippocampal volume reduction?" , "updated_at" : "2026-04-05T14:32:00Z" , "domain_classified" : "neuroscience" }, { "id" : "6ba7b810-9dad-11d1-80b4-00c04fd430c8" , "title" : "What is the causal effect of sleep deprivation on reaction time?" , "updated_at" : "2026-04-04T09:15:00Z" , "domain_classified" : "cognitive_science" } ] }
Get session messages GET /api/causal-chat/sessions/{sessionId}
Returns the full ordered message history for a specific session.
Authentication Required. Include a session cookie or Authorization: Bearer <token> header.
Path parameters UUID of the session to retrieve. Obtain this from the id field in the list sessions response. Response Status: 200 OKContent-Type: application/jsonChronologically ordered array of messages in the session. UUID uniquely identifying this message.
Speaker role: "user" or "assistant".
Full text content of the message.
ISO 8601 timestamp when the message was created.
Causal graph snapshot attached to this message, if any. Present on "assistant" messages that include a rendered SCM. The structure mirrors the tier-1/tier-2 schema returned in the scm_loaded SSE event. May be null.
Example curl --request GET \ --url https://wuweism.com/api/causal-chat/sessions/3f2504e0-4f89-11d3-9a0c-0305e82c3301 \ --header 'Authorization: Bearer <token>'
{ "messages" : [ { "id" : "a1b2c3d4-0000-0000-0000-000000000001" , "role" : "user" , "content" : "Does cortisol exposure causally increase hippocampal volume reduction?" , "created_at" : "2026-04-05T14:31:45Z" , "causal_graph" : null }, { "id" : "a1b2c3d4-0000-0000-0000-000000000002" , "role" : "assistant" , "content" : "Yes. The causal pathway from elevated cortisol to hippocampal volume reduction is well-supported by the loaded SCM..." , "created_at" : "2026-04-05T14:32:00Z" , "causal_graph" : { "modelKey" : "neuroscience_hpa_axis" , "version" : "2.1.0" , "tier1" : {}, "tier2" : {} } } ] }
Error responses Status Description 401Missing or invalid authentication credentials. 404No session found with the given sessionId for the authenticated user.
