0x Gasless API is one of 5 APIs that 0x publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Gasless. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and code examples.
This API exposes 6 operations across 6 paths, and defines 25 schemas. It is described by OpenAPI 3.2.0, at version v2.
Requests are made against a single base URL, https://api.0x.org.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
0x Gasless API declares
1 security scheme
for authenticating requests.
An API key is passed in the header as 0x-api-key (ApiKeyAuth).
Paths & Operations 6
Across 6 paths, the API surfaces 6 operations — 5 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.
Gasless API endpoints
Schemas 25
The contract defines 25 schemas that model the data the API accepts and returns. The most detailed are TOKEN_PAIR_NOT_SUPPORTED (3 properties), INVALID_SIGNATURE (3 properties), META_TRANSACTION_EXPIRY_TOO_SOON (3 properties), XSTOCKS_NOT_AUTHORIZED (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 0x 4
Other APIs 0x publishes across the network.
This is an independent, third-party profile of 0x Gasless 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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