The Stamp API for bulk e-stamp procurement
Procure government e-stamps at scale over a clean REST API — a prepaid stamp-duty wallet, a full audit register, signed webhooks, and a sandbox. Built for legal, fintech, and procurement teams.
Bulk procurement
Submit hundreds of stamps in one call. Two-phase validate-then-commit with per-row errors and a price quote before you spend.
Prepaid wallet
Fund a pass-through stamp-duty wallet by NEFT — no GST on funding. Holds and debits are reconcilable from an append-only ledger.
Signed webhooks
Get stamp.verified, order.fulfilled, wallet.low_balance and more — signed (Standard Webhooks) with a delivery log and replay.
Sandbox + live keys
Build against an isolated sandbox with sk_test_ keys, then flip to sk_live_. Idempotent creates, stable error envelope, rate limits.
How it works
- Step 1
Fund your wallet
Transfer stamp duty by NEFT; we credit your prepaid wallet (no GST).
- Step 2
Submit stamps
Validate + create a bulk order; we allocate to vetted partners.
- Step 3
Receive + reconcile
Get verified stamps + certificates, webhooks, and an audit register.
Skip the manual integration
Copy our ready-made prompt and paste it into your AI coding agent (Cursor, Claude, Copilot…). It explains the auth, wallet model, idempotency, the validate→create flow, webhooks, and error handling — then points the agent at the live spec so it scaffolds the integration for you.
Start building today
Generate a sandbox key, read the reference, and place your first test order in minutes.