Input Limits

Request size limits, character limits, and validation constraints.

Constraint	Limit
Request body size	64 KB
Content length	8,192 characters
Metadata size	4,096 bytes (JSON serialized)
Metadata keys	20 max
Metadata nesting depth	3 levels
Tags per memory	10 max
Tag length	64 characters
Recall limit	1–100 results
Recall min_similarity	0.0–1.0
Namespace length	255 characters
Batch size	100 memories
Recall query length	32,768 characters
Search query length	1,000 characters

Exceeding any limit returns a 422 VALIDATION_ERROR with details about which constraint was violated.