e-Stamp Paper APIs

Discover instruments, calculate stamp duty, create orders, collect payment, and fetch the signed e-Stamp certificate — end to end.

e-Stamp Catalog Discovery

Discover which e-Stamp instruments/services are available to your organization.

Field schema and dropdown options for a given e-Stamp instrument (state, article, value ranges, etc.).

Resolve valid instrument types and stamp articles for a given state.

Calculate applicable stamp duty for a given article, state and transaction value.

Attach first/second party (and witness) details to an e-Stamp order.

Create an e-Stamp order using the generic orders API with an e-Stamp serviceCode.

Create a payment intent and check payment status for an order.

Retrieve the generated e-Stamp certificate/document once an order completes.