Response Modifier
Mock or rewrite API responses in real time with rules, CSV import, and live traffic generation.
The Response Modifier lets you change status codes and response bodies for matching URLs without touching your backend. Enable rules individually, test edge cases, and disable them when done.

Rule matching
- Match by exact URL or wildcard pattern
- Override HTTP status code and response body
- Toggle rules on/off without deleting them
- Body editor with JSON validation
Import and export
Share rule sets across teammates with CSV import and export. Generate rules directly from captured live traffic to mock an endpoint you just observed.

