Zamp API
Zamp provides a developer API documented at the API Reference page.
Zamp API is one of 8 APIs that Zamp publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
This API exposes 6 JSON Schema definitions.
The published artifact set on APIs.io includes an OpenAPI specification and 6 JSON Schemas.
This API exposes 9 operations across 7 paths, organized into 7 resource areas, and defines 10 schemas. It is described by OpenAPI 3.1.0, at version 2026-10-15.
Requests are made against a single base URL, https://api.zamp.com.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
Zamp API declares
1 security scheme
for authenticating requests.
It accepts HTTP bearer tokens (bearer).
By default, every request must be authenticated.
Paths & Operations 9
Across 7 paths, the API surfaces 9 operations — 1 DELETE, 5 GET, 3 POST. They span 7 resource areas: Addresses, Calculations, Companies, Filings, Registrations, Tax Codes, Transactions. Each is listed below with its method, path, parameters, and response codes.
Schemas 10
The contract defines 10 schemas that model the data the API accepts and returns. The most detailed are PostTransactionsRequest (13 properties), PostCalculationsRequest (10 properties), PostAddressesRequest (5 properties), GetRegistrationsResponse (4 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from Zamp 7
Other APIs Zamp publishes across the network.
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