Mark feed seen
Moves the caller’s seen mark to now, so the feed’s unseen_count counts only the events logged after it. The seen mark is a member’s own: an API key is 403. Needs markets:write.
Requires the markets:write scope. Rate limit: 200 requests per minute per key (the api lane).
Authentication
AuthorizationBearer
Bearer token. Use ss_live_… for live data or ss_test_… for the sandbox (test mode). See Authentication.
Headers
Idempotency-Key
Idempotency token. Retries that reuse the key within 24h replay the original response. Up to 255 characters; a UUID is typical. See Idempotency.
SpreadSpace-Version
Pin the API version, e.g. 2026-10-07. Omit to get the latest. See Versioning.
Response
No Content
Errors
400
Bad Request Error
401
Unauthorized Error
403
Forbidden Error
404
Not Found Error
409
Conflict Error
429
Too Many Requests Error
500
Internal Server Error