Circle Headless - Auth API
Member JWT token exchange for the Headless Member API.
Circle Headless - Auth API is one of 8 APIs that Circle publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Headless - Auth. 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 1 schema. It is described by OpenAPI 3.2.0, at version 2.0.
Requests are made against a single base URL, https://app.circle.so.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 2
Circle Headless - Auth API declares
2 security schemes
for authenticating requests.
An API key is passed in the header as Authorization (tokenAuth).
It accepts HTTP bearer tokens (bearerAuth).
By default, every request must be authenticated.
tokenAuth— Admin API token in the format "Token AUTHTOKEN". Community admins generate the token on the Developers - Tokens page.bearerAuth— Member-scoped JWT access token from /api/v1/headless/authtoken in the format "Bearer ACCESSTOKEN". Expires after one hour.
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.
Member JWT token exchange for the Headless Member API.
Schemas 1
The contract defines 1 schema that model the data the API accepts and returns. The most detailed is HeadlessAuthToken (6 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 Circle 7
Other APIs Circle publishes across the network.
This is an independent, third-party profile of Circle Headless - Auth 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.