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Gupshup Messaging API

Send WhatsApp session messages.

Gupshup Messaging API is one of 6 APIs that Gupshup publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Messaging. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

This API exposes 1 operation across 1 path, and defines 3 schemas. It is described by OpenAPI 3.2.0, at version 1.0.

Requests are made against a single base URL, https://api.gupshup.io/wa/api/v1.

1 operations 1 paths 3 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0
Base URL
https://api.gupshup.io/wa/api/v1
Authentication
API Key
Contact
Resource Areas
1

Authentication & Security 1

Gupshup Messaging API declares 1 security scheme for authenticating requests. An API key is passed in the header as apikey (apiKeyAuth). By default, every request must be authenticated.

  • apiKeyAuth — Account API key sent in the apikey request header. Available from the Gupshup dashboard. Scopes requests to your account and its registered apps.

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.

Messaging 1

Send WhatsApp session messages.

POST
/msg
Send a WhatsApp session message
sendMessage body → 202401400

Schemas 3

The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are SendMessageRequest (7 properties), Error (2 properties), SendMessageResponse (2 properties). Each schema is shown below with its type and property counts.

SendMessageRequest
object
7 properties 5 required
SendMessageResponse
object
Asynchronous accept response carrying a Gupshup message identifier.
2 properties
Error
object
2 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

gupshup-messaging-api-openapi.yml Raw ↑

Other APIs Gupshup publishes across the network.

Gupshup SMS API
Gupshup RCS API
Gupshup Partner API
Gupshup Opt-In API
Gupshup Templates API
Where this information came from

This is an independent, third-party profile of Gupshup Messaging 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.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

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