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Lemmy Authentication API

Account registration, login, and password management

Lemmy Authentication API is one of 14 APIs that Lemmy publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 3 JSON Schema definitions.

Tagged areas include Authentication. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, authentication docs, a GitHub repository, rate-limit docs, and 3 JSON Schemas.

This API exposes 5 operations across 5 paths, and defines 2 schemas. It is described by OpenAPI 3.1.0, at version 4.0.0.

Requests are made against 2 base URLs: https://lemmy.world/api/v4, https://{instance}/api/v4.

5 operations 5 paths 2 schemas 4 POST1 PUT

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
4.0.0
Base URL
https://lemmy.world/api/v4
Authentication
HTTP Bearer
License
Resource Areas
1

Authentication & Security 1

Lemmy Authentication API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (JWT) (bearerAuth). By default, every request must be authenticated.

Paths & Operations 5

Across 5 paths, the API surfaces 5 operations — 4 POST, 1 PUT. Each is listed below with its method, path, parameters, and response codes.

Authentication 5

Account registration, login, and password management

POST
/account/auth/register
Register a new account
register body → 200
POST
/account/auth/login
Login to account
login body → 200400
POST
/account/auth/logout
Logout from account
logout → 200
POST
/account/auth/password_reset
Reset password
resetPassword body → 200
PUT
/account/auth/change_password
Change account password
changePassword body → 200

Schemas 2

The contract defines 2 schemas that model the data the API accepts and returns. The most detailed are LoginResponse (3 properties), ErrorResponse (2 properties). Each schema is shown below with its type and property counts.

LoginResponse
object
3 properties
ErrorResponse
object
2 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

lemmy-authentication-api-openapi.yml Raw ↑

Other APIs Lemmy publishes across the network.

Lemmy Account API
Lemmy Admin API
Lemmy Comment API
Lemmy Community API
Lemmy Federation API
Lemmy Images API
Lemmy Notifications API
Lemmy Person API
Lemmy Post API
Lemmy Private Messages API
Lemmy Reports API
Lemmy Search API
Where this information came from

This is an independent, third-party profile of Lemmy 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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