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SMTP2GO SMS API

Send and receive SMS messages

SMTP2GO SMS API is one of 11 APIs that SMTP2GO publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include SMS. The published artifact set on APIs.io includes an OpenAPI specification.

This API exposes 4 operations across 4 paths, and defines 4 schemas. It is described by OpenAPI 3.0.3, at version 3.0.4.

Requests are made against 4 base URLs: https://api.smtp2go.com/v3, https://us-api.smtp2go.com/v3, https://eu-api.smtp2go.com/v3, https://au-api.smtp2go.com/v3.

4 operations 4 paths 4 schemas 4 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
3.0.4
Base URL
https://api.smtp2go.com/v3
Authentication
API Key, API Key
Resource Areas
1

Authentication & Security 2

SMTP2GO SMS API declares 2 security schemes for authenticating requests. An API key is passed in the header as X-Smtp2go-Api-Key (ApiKeyHeader). An API key is passed in the header as api_key (ApiKeyBody). By default, every request must be authenticated.

  • ApiKeyHeader — API key passed as an HTTP header
  • ApiKeyBody — API key can also be included in the JSON request body as the "apikey" field

Paths & Operations 4

Across 4 paths, the API surfaces 4 operations — 4 POST. Each is listed below with its method, path, parameters, and response codes.

SMS 4

Send and receive SMS messages

POST
/sms/send
Send SMS
sendSms body → 200400
POST
/sms/summary
SMS summary
smsSummary body → 200
POST
/sms/view
View sent SMS
viewSentSms body → 200
POST
/sms/inbox
View received SMS
viewReceivedSms body → 200

Schemas 4

The contract defines 4 schemas that model the data the API accepts and returns. The most detailed are SendSmsRequest (3 properties), ErrorResponse (2 properties), SendSmsResponse (2 properties), StandardResponse (2 properties). Each schema is shown below with its type and property counts.

StandardResponse
object
2 properties
SendSmsResponse
object
2 properties
SendSmsRequest
object
3 properties 2 required
ErrorResponse
object
2 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

smtp2go-sms-api-openapi.yml Raw ↑

Other APIs SMTP2GO publishes across the network.

SMTP2GO Email API
SMTP2GO Activity API
SMTP2GO API Keys API
SMTP2GO Domains API
SMTP2GO SMTP Users API
SMTP2GO Stats API
SMTP2GO Subaccounts API
SMTP2GO Suppressions API
SMTP2GO Templates API
SMTP2GO Webhooks API
Where this information came from

This is an independent, third-party profile of SMTP2GO SMS 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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