Upwork Messages API
Read and send messages within active contracts.
Upwork Messages API is one of 7 APIs that Upwork publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Message. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and a getting-started guide.
This API exposes 3 operations across 2 paths, and defines 7 schemas. It is described by OpenAPI 3.0.3, at version 1.0.0.
Requests are made against a single base URL, https://api.upwork.com.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
Upwork Messages API declares
1 security scheme
for authenticating requests.
It supports OAuth 2.0 (oauth2AuthCode) using the authorizationCode flow, exposing 9 scopes.
By default, every request must be authenticated.
oauth2AuthCode— OAuth 2.0 authorization code flow for Upwork API access. Obtain an authorization code by redirecting users to the Upwork OAuth consent page, then exchange for…
Paths & Operations 3
Across 2 paths, the API surfaces 3 operations — 1 GET, 2 POST. Each is listed below with its method, path, parameters, and response codes.
Read and send messages within active contracts.
Schemas 7
The contract defines 7 schemas that model the data the API accepts and returns. The most detailed are Message (6 properties), GraphQLError (3 properties), APIError (3 properties), GraphQLRequest (3 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 Upwork 6
Other APIs Upwork publishes across the network.
This is an independent, third-party profile of Upwork Messages 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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