Jupyter Server

Jupyter Server Kernelspecs API

Available kernel specifications.

GitHub OpenAPI

Documentation

📖
Documentation
https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/jupyter-server/refs/heads/main/openapi/jupyter-server-kernelspecs-api-openapi.yml

Schemas & Data

📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/jupyter-server/refs/heads/main/json-schema/jupyter-server-contents-model.json
📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/jupyter-server/refs/heads/main/json-schema/jupyter-server-kernel.json
📊
JSONSchema
https://raw.githubusercontent.com/api-evangelist/jupyter-server/refs/heads/main/json-schema/jupyter-server-session.json

Other Resources

🔗
Repository
https://github.com/jupyter-server/jupyter_server
🔗
ChangeLog
https://github.com/jupyter-server/jupyter_server/blob/main/CHANGELOG.md
🔗
JSONLDContext
https://raw.githubusercontent.com/api-evangelist/jupyter-server/refs/heads/main/json-ld/jupyter-server-context.jsonld

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

Call it yourself

curl for this page
This API 
curl "https://apis.io/api/v1/apis/jupyter-server-kernelspecs-api"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

jupyter-server-kernelspecs-api-openapi.yml Raw ↑ 
openapi: 3.1.0
info:
  title: Jupyter Server REST Checkpoints Kernelspecs API
  description: Core REST API for Jupyter Server, the backend that powers Jupyter Notebook, JupyterLab, and other Jupyter web applications. Provides endpoints for managing kernels, sessions, contents (notebooks and files), terminals, kernel specifications, configuration, and server status.
  version: 2.14.0
  license:
    name: BSD-3-Clause
    url: https://opensource.org/licenses/BSD-3-Clause
  contact:
    name: Jupyter Project
    url: https://jupyter-server.readthedocs.io
    email: jupyter@googlegroups.com
servers:
- url: http://localhost:8888/api
  description: Local Jupyter Server
security:
- token: []
tags:
- name: Kernelspecs
  description: Available kernel specifications.
paths:
  /kernelspecs:
    get:
      operationId: listKernelspecs
      summary: Jupyter Server List kernel specifications
      description: Returns the available kernel specifications.
      tags:
      - Kernelspecs
      responses:
        '200':
          description: Kernelspecs object including the default kernel.
components:
  securitySchemes:
    token:
      type: apiKey
      in: header
      name: Authorization
      description: 'Token-based authentication. Use the form: Authorization: token <token>'
    xsrf:
      type: apiKey
      in: header
      name: X-XSRFToken
      description: XSRF token required for browser-based requests.
externalDocs:
  description: Jupyter Server REST API documentation
  url: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html