High-intent workflow
OAuth Callback Testing on localhost
Test OAuth redirect/callback flows for Google, GitHub, and custom providers on localhost without deploying staging builds for every change.
Who this is for
App teams integrating social login and identity provider callbacks.
Primary keyword
oauth callback localhost
Verification checkpoint
Register callback URL exactly and keep state parameter validation enabled.
Quick start pattern
Command
instatunnel --port 3000 --subdomain oauth-devPublic endpoint example
https://oauth-dev.instatunnel.my/auth/callbackLaunch this workflow now
Start free, validate locally, and upgrade when you need MCP, higher limits, or advanced analytics.