ClickSend Post Postcard API
Print and mail physical postcards.
ClickSend Post Postcard API is one of 10 APIs that ClickSend publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Post Postcard. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.
This API exposes 3 operations across 3 paths, and defines 3 schemas. It is described by OpenAPI 3.2.0, at version 3.1.
Requests are made against a single base URL, https://rest.clicksend.com/v3.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
ClickSend Post Postcard API declares
1 security scheme
for authenticating requests.
It accepts HTTP basic authentication (basicAuth).
By default, every request must be authenticated.
basicAuth— HTTP Basic authentication using your ClickSend username and API key. The username is your ClickSend account username; the password is your API key from the Cli…
Paths & Operations 3
Across 3 paths, the API surfaces 3 operations — 1 GET, 2 POST. Each is listed below with its method, path, parameters, and response codes.
Print and mail physical postcards.
Schemas 3
The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are PostRecipient (9 properties), ApiResponse (4 properties), PostPostcard (2 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 ClickSend 9
Other APIs ClickSend publishes across the network.
This is an independent, third-party profile of ClickSend Post Postcard API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
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