Verify signed PDFs programmatically.

Server-to-server access to SigVerify's Panda verification engine. Web/developer-server only. No free API credits.

Start using the Developer API

Quick start

Upload a signed PDF from your own backend using your secret API key.

curl -X POST https://sigverfiy.in/api/v1/verify \ -H "X-API-Key: sv_live_YOUR_KEY" \ -F "file=@signed-document.pdf"

API response

{ "object": "verification", "apiVersion": "2026-08-01", "engine": "Panda", "status": "valid", "result": { "...": "Panda verification evidence" } }

API credits

Prepaid usage. One completed Panda verification consumes one API credit.

Starter

₹3,000

100 verifications

₹30 / verification

Growth

₹12,500

500 verifications

₹25 / verification

Scale

₹40,000

2,000 verifications

₹20 / verification

Business

₹1,50,000

10,000 verifications

₹15 / verification

Security

Never put your API key in Android, browser JavaScript, GitHub, or a public repository.

Use it only from your own server/backend. If compromised, rotate or revoke it immediately.

Frequently Asked Questions

Is there a free Developer API tier?

No. Developer API access uses prepaid API credits. This keeps programmatic usage separate from normal retail verification.

Can I use the API from my Android app?

The Developer API is offered for server-to-server integrations through the web platform. Do not embed an API key inside an APK or browser JavaScript.

Does one failed request consume a credit?

Authentication, invalid-file and transport errors do not consume a verification credit. A credit is consumed after Panda returns a verification result.

What does Panda return?

The API returns the structured SigVerify/Panda verification result, including signature, certificate, trust and evidence fields when available.

Can I rotate or revoke my API key?

Yes. Rotate immediately if a key may have been exposed. Revoking a key stops requests using that key.