GetResponse SMS Messages API
SMS Messages API documentation The SMS Messages area of the GetResponse API v3 — 4 operation(s) across 3 path(s), split by tag from the provider-published OpenAPI at https://apireference.getresponse.com/open-api.json.
GetResponse SMS Messages API is one of 50 APIs that GetResponse publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include SMS Messages. The published artifact set on APIs.io includes an OpenAPI specification.
This API exposes 4 operations across 3 paths, and defines 12 schemas. It is described by OpenAPI 3.0.0, at version 3.2026-07-28T07:58:55+00:00.
Requests are made against 3 base URLs: https://api.getresponse.com/v3, https://api3.getresponse360.com/v3, https://api3.getresponse360.pl/v3.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 2
GetResponse SMS Messages API declares
2 security schemes
for authenticating requests.
An API key is passed in the header as X-Auth-Token (api-key).
It supports OAuth 2.0 (oauth2) using the implicit, authorizationCode and clientCredentials flows, exposing 1 scope.
api-key— Header value must be prefixed with api-key
Paths & Operations 4
Across 3 paths, the API surfaces 4 operations — 3 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.
SMS Messages API documentation
Schemas 12
The contract defines 12 schemas that model the data the API accepts and returns. The most detailed are SmsListItem (12 properties), ErrorResponse (7 properties), SmsSenderName (4 properties), BaseSendSms (3 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
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Other APIs GetResponse publishes across the network.
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