API Sandbox
Docs Console

Test the API from your browser

Every panel below sends a real request to api.phone.cobinar.com using credentials you provide. Nothing is proxied or faked — this is the live API your integration will use.

Use Test environment credentials (the ph_test_ prefix) from an application you created in the console — these calls create real OTP requests and count against your rate limits.
0
Health check

Confirms the API and hooks workers are reachable — no credentials required.

1
Send OTP

POST /v1/otp/send — requires all three application credentials.

Type any number in this format — it's an identifier for this test flow, not something assigned to your account. Real applications generate one per end user the first time they authenticate.
2
Verify OTP

POST /v1/otp/verify — request ID auto-fills after a successful send.

3
Webhook echo sandbox

Generate a temporary URL, register it as a webhook endpoint in the console, click "Send test event" there, and watch the delivery land here — no server required.

4
Signature verifier

Computed entirely in your browser via Web Crypto — nothing here is sent anywhere. Paste a delivered payload, its signature, and your Webhook Secret to confirm your verification code matches ours.

Tip: paste the exact JSON body from the echo sandbox above — re-typing it will change whitespace and break the signature.