SendHQ Account and billing API
Session-authenticated workspace administration.
SendHQ Account and billing API is one of 8 APIs that SendHQ publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Account and billing. The published artifact set on APIs.io includes an OpenAPI specification, an API reference, API documentation, and a getting-started guide.
This API exposes 6 operations across 5 paths, and defines 1 schema. It is described by OpenAPI 3.2.0, at version 2026-08-23.
Requests are made against a single base URL, https://sendhq.cc/api/v1.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 2
SendHQ Account and billing API declares
2 security schemes
for authenticating requests.
It accepts HTTP bearer tokens (re_…) (bearerAuth).
An API key is passed in the cookie as sendhq_session_v2 (sessionCookie).
bearerAuth— Workspace API key. Keep it server-side.sessionCookie— Browser session used for account administration.
Paths & Operations 6
Across 5 paths, the API surfaces 6 operations — 1 DELETE, 2 GET, 3 POST. Each is listed below with its method, path, parameters, and response codes.
Session-authenticated workspace administration.
Schemas 1
The contract defines 1 schema that model the data the API accepts and returns. The most detailed is Error (1 property). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from SendHQ 7
Other APIs SendHQ publishes across the network.
This is an independent, third-party profile of SendHQ Account and billing 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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