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Arch Authentication API

The Authentication API from Arch — 1 operation(s) for authentication.

Arch Authentication API is one of 15 APIs that Arch publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Authentication. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, authentication docs, and rate-limit docs.

This API exposes 1 operation across 1 path. It is described by OpenAPI 3.2.0, at version 0.1.0.

Requests are made against a single base URL, /.

1 operations 1 paths 0 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
0.1.0
Base URL
https://arch.co/client-api/v0
Authentication
HTTP Bearer
Resource Areas
1

Authentication & Security 1

Arch Authentication API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (JWT) (BearerAuth).

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.

Authentication 1
POST
/client-api/v0/auth/token
Authenticate using client credentials
body → 200401500

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

arch-authentication-api-openapi.yml Raw ↑

Other APIs Arch publishes across the network.

Arch Accounts API
Arch Activities API
Arch Addepar API
Arch Cash Flows API
Arch Firms API
Arch Holdings API
Arch Investing Entities API
Arch Issuing Entities API
Arch Lookthroughs API
Arch Offerings API
Arch Tasks API
Arch Tax Documents API
Where this information came from

This is an independent, third-party profile of Arch 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.

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