Debug External
API Integrations with
Live Traffic
When your integrations depend on APIs you don’t control, visibility is everything. Stop the guesswork, inspect live traffic with Fiddler Everywhere.
The Blind Spots in API Debugging
No visibility into real API traffic
When third‑party APIs talk to each other, logs and code don’t show the full story. Fiddler Everywhere lets you see real requests and responses as they flow between systems.
Too much time spent figuring out “why”
Bad requests, missing data, unexpected responses and no clear reason why. With Fiddler Everywhere, you can inspect the traffic and pinpoint the issue in minutes, not hours.
You are not getting the full picture
Most API tools focus on what you send or what you log. Fiddler focuses on what actually happens in between — the live traffic.
From Blind Spots to Full Visibility
Capture Everything
Start Fiddler Everywhere and instantly capture live HTTP/S traffic — no complex setup, no noise, just the data you need.
Find the problem fast
Search, filter, and inspect large requests and responses without scrolling through thousands of lines. Quickly spot missing fields, wrong headers or unexpected responses.
Test fixes without changing code
Reply to requests, mock responses, or simulate API behavior directly in Fiddler. Validate fixes and edge cases before touching production code.
Next Steps
