0xArchive Web3 Authentication API
SIWE authentication for existing wallet accounts and autonomous paid wallet access via x402. Standard Free accounts are created through the browser signup flow.
0xArchive Web3 Authentication API is one of 55 APIs that 0xArchive publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Web3 Authentication. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, a getting-started guide, authentication docs, and rate-limit docs.
This API exposes 6 operations across 6 paths, and defines 14 schemas. It is described by OpenAPI 3.2.0, at version 1.6.1.
Requests are made against a single base URL, https://api.0xarchive.io.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 1
0xArchive Web3 Authentication API declares
1 security scheme
for authenticating requests.
An API key is passed in the header as X-API-Key (ApiKeyAuth).
By default, every request must be authenticated.
ApiKeyAuth— API key for authentication. Get yours at https://0xarchive.io/dashboard
Paths & Operations 6
Across 6 paths, the API surfaces 6 operations — 6 POST. Each is listed below with its method, path, parameters, and response codes.
SIWE authentication for existing wallet accounts and autonomous paid wallet access via x402. Standard Free accounts are created through the browser signup flow.
Schemas 14
The contract defines 14 schemas that model the data the API accepts and returns. The most detailed are Web3ApiKey (6 properties), Web3SubscribeResponse (5 properties), Error (4 properties), Web3UserInfo (4 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 0xArchive 12
Other APIs 0xArchive publishes across the network.
This is an independent, third-party profile of 0xArchive Web3 Authentication 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.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
info@apievangelist.com
·
Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and
you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.