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LM Studio

LM Studio Models API

List, load, unload, and download local models.

Documentation Provider Profile APIs.io OpenAPI GitHub

LM Studio Models API is one of 4 APIs that LM Studio publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Models. The published artifact set on APIs.io includes an OpenAPI specification and authentication docs.

This API exposes 5 operations across 5 paths, and defines 7 schemas. It is described by OpenAPI 3.1.0, at version 1.0.0-beta.

Requests are made against a single base URL, http://localhost:1234.

5 operations 5 paths 7 schemas 2 GET3 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
1.0.0-beta
Base URL
http://localhost:1234
Authentication
HTTP Bearer
Contact
LM Studio
License
Proprietary (LM Studio application)
Resource Areas
1

Authentication & Security 1

LM Studio Models API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (ApiToken).

  • ApiToken — Optional API token. The native /api/v1 server can be configured to require a bearer token; by default the local server accepts unauthenticated requests from th…

Paths & Operations 5

Across 5 paths, the API surfaces 5 operations — 2 GET, 3 POST. Each is listed below with its method, path, parameters, and response codes.

Models 5

List, load, unload, and download local models.

GET
/api/v1/models
List loaded and downloaded models
listModels → 200401
POST
/api/v1/models/load
Load a model into memory
loadModel body → 200400404
POST
/api/v1/models/unload
Unload a model from memory
unloadModel body → 200404
POST
/api/v1/models/download
Download a model from the LM Studio / Hugging Face catalog
downloadModel body → 200400
GET
/api/v1/models/download/status
Check model download progress
getDownloadStatus → 200

Schemas 7

The contract defines 7 schemas that model the data the API accepts and returns. The most detailed are Model (6 properties), DownloadStatus (3 properties), ModelLoadRequest (2 properties), ModelList (2 properties). Each schema is shown below with its type and property counts.

ModelUnloadRequest
object
1 property 1 required
ModelList
object
2 properties
DownloadStatus
object
3 properties
Error
object
1 property
ModelLoadRequest
object
2 properties 1 required
Model
object
6 properties
ModelDownloadRequest
object
1 property 1 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

lm-studio-models-api-openapi.yml Raw ↑

Other APIs LM Studio publishes across the network.

LM Studio Anthropic Compatibility API
AE Profile APIs.io
LM Studio Chat API
AE Profile APIs.io
LM Studio OpenAI Compatibility API
AE Profile APIs.io
#Models
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API Details
ID
lm-studio:lm-studio-models-api
Base URL
http://localhost:1234
Docs
https://lmstudio.ai/docs/app/api/endpoints/rest
Provider
LM Studio
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This is an independent, third-party profile of LM Studio Models 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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