Jupyter Server

Jupyter Server is the backend that powers Jupyter Notebook, JupyterLab, and other Jupyter web applications. It provides the core REST API for managing kernels, sessions, contents, terminals, and configuration, and it hosts the WebSocket endpoints used to communicate with kernels via the Jupyter messaging protocol.

Jupyter Server publishes 8 APIs on the APIs.io network, including Checkpoints API, Config API, Contents API, and 5 more. Tagged areas include Compute, Interactive Computing, Kernel, Notebooks, and Portable.

The Jupyter Server catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Jupyter Server’s developer surface includes authentication, documentation, getting-started guide, engineering blog, and 13 more developer resources.

🌐 Visit website 📡 Source on GitHub

40.3/100 developing ▬ flat Agent 29/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

AccessFreemiumSelf serve⚡ Free to try

8 APIs

Compute Interactive Computing Kernel NotebooksPortableWorkbooks

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 40.3/100 · developing

Contract Quality 16.6 / 25

Developer Ergonomics 8.1 / 20

Access Clarity 3.2 / 20

Operational Transparency 4.8 / 13

Contract Governance 1.2 / 12

Discoverability 6.5 / 10

Agent readiness — 29/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/jupyter-server: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 8

Individual APIs this provider publishes, each with its own machine-readable definition.

Open Collections 10

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Rate Limits 1

Documented rate limits and quota policies.

Jupyter Server Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

JSON Schema 3

Standalone JSON Schema definitions for this provider's data models.

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 2

SDKs, sample code, and the tooling you integrate with

CodeOfConduct

CodeOfConduct

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Security

Security

Operate 3

Status, limits, changes, and where to get help

IssueTracker

IssueTracker

Releases

Releases

Community

Community

Commercial 1

Pricing, plans, and the legal terms of use

License

License

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Repository

Repository

Source (apis.yml)

aid: jupyter-server
name: Jupyter Server
description: Jupyter Server is the backend that powers Jupyter Notebook, JupyterLab, and other Jupyter web applications. It
  provides the core REST API for managing kernels, sessions, contents, terminals, and configuration, and it hosts the WebSocket
  endpoints used to communicate with kernels via the Jupyter messaging protocol.
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/jupyter-server.png
tags:
- Compute
- Interactive Computing
- Kernel
- Notebooks
- Portable
- Workbooks
tags_raw:
- Compute
- Interactive Computing
- Kernels
- Notebooks
- Portable
- Workbooks
url: https://raw.githubusercontent.com/api-evangelist/jupyter-server/refs/heads/main/apis.yml
created: '2025-02-06'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: jupyter-server:jupyter-server-checkpoints-api
  name: Jupyter Server Checkpoints API
  description: File checkpoint (snapshot) management.
  humanURL: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html
  baseURL: http://localhost:8888/api
  tags:
  - Checkpoints
  properties:
  - type: OpenAPI
    url: openapi/jupyter-server-checkpoints-api-openapi.yml
  - type: Documentation
    url: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html
  - type: Repository
    url: https://github.com/jupyter-server/jupyter_server
  - type: ChangeLog
    url: https://github.com/jupyter-server/jupyter_server/blob/main/CHANGELOG.md
  - type: JSONSchema
    url: json-schema/jupyter-server-contents-model.json
  - type: JSONSchema
    url: json-schema/jupyter-server-kernel.json
  - type: JSONSchema
    url: json-schema/jupyter-server-session.json
  - type: JSONLDContext
    url: json-ld/jupyter-server-context.jsonld
- aid: jupyter-server:jupyter-server-config-api
  name: Jupyter Server Config API
  description: Server configuration sections.
  humanURL: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html
  baseURL: http://localhost:8888/api
  tags:
  - Config
  properties:
  - type: OpenAPI
    url: openapi/jupyter-server-config-api-openapi.yml
  - type: Documentation
    url: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html
  - type: Repository
    url: https://github.com/jupyter-server/jupyter_server
  - type: ChangeLog
    url: https://github.com/jupyter-server/jupyter_server/blob/main/CHANGELOG.md
  - type: JSONSchema
    url: json-schema/jupyter-server-contents-model.json
  - type: JSONSchema
    url: json-schema/jupyter-server-kernel.json
  - type: JSONSchema
    url: json-schema/jupyter-server-session.json
  - type: JSONLDContext
    url: json-ld/jupyter-server-context.jsonld
- aid: jupyter-server:jupyter-server-contents-api
  name: Jupyter Server Contents API
  description: Notebook and file management operations.
  humanURL: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html
  baseURL: http://localhost:8888/api
  tags:
  - Contents
  properties:
  - type: OpenAPI
    url: openapi/jupyter-server-contents-api-openapi.yml
  - type: Documentation
    url: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html
  - type: Repository
    url: https://github.com/jupyter-server/jupyter_server
  - type: ChangeLog
    url: https://github.com/jupyter-server/jupyter_server/blob/main/CHANGELOG.md
  - type: JSONSchema
    url: json-schema/jupyter-server-contents-model.json
  - type: JSONSchema
    url: json-schema/jupyter-server-kernel.json
  - type: JSONSchema
    url: json-schema/jupyter-server-session.json
  - type: JSONLDContext
    url: json-ld/jupyter-server-context.jsonld
- aid: jupyter-server:jupyter-server-general-api
  name: Jupyter Server General API
  description: Server information, identity, and status.
  humanURL: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html
  baseURL: http://localhost:8888/api
  tags: []
  tags_raw:
  - General
  properties:
  - type: OpenAPI
    url: openapi/jupyter-server-general-api-openapi.yml
  - type: Documentation
    url: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html
  - type: Repository
    url: https://github.com/jupyter-server/jupyter_server
  - type: ChangeLog
    url: https://github.com/jupyter-server/jupyter_server/blob/main/CHANGELOG.md
  - type: JSONSchema
    url: json-schema/jupyter-server-contents-model.json
  - type: JSONSchema
    url: json-schema/jupyter-server-kernel.json
  - type: JSONSchema
    url: json-schema/jupyter-server-session.json
  - type: JSONLDContext
    url: json-ld/jupyter-server-context.jsonld
- aid: jupyter-server:jupyter-server-kernels-api
  name: Jupyter Server Kernels API
  description: Kernel lifecycle management.
  humanURL: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html
  baseURL: http://localhost:8888/api
  tags:
  - Kernel
  tags_raw:
  - Kernels
  properties:
  - type: OpenAPI
    url: openapi/jupyter-server-kernels-api-openapi.yml
  - type: Documentation
    url: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html
  - type: Repository
    url: https://github.com/jupyter-server/jupyter_server
  - type: ChangeLog
    url: https://github.com/jupyter-server/jupyter_server/blob/main/CHANGELOG.md
  - type: JSONSchema
    url: json-schema/jupyter-server-contents-model.json
  - type: JSONSchema
    url: json-schema/jupyter-server-kernel.json
  - type: JSONSchema
    url: json-schema/jupyter-server-session.json
  - type: JSONLDContext
    url: json-ld/jupyter-server-context.jsonld
- aid: jupyter-server:jupyter-server-kernelspecs-api
  name: Jupyter Server Kernelspecs API
  description: Available kernel specifications.
  humanURL: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html
  baseURL: http://localhost:8888/api
  tags:
  - Kernelspecs
  properties:
  - type: OpenAPI
    url: openapi/jupyter-server-kernelspecs-api-openapi.yml
  - type: Documentation
    url: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html
  - type: Repository
    url: https://github.com/jupyter-server/jupyter_server
  - type: ChangeLog
    url: https://github.com/jupyter-server/jupyter_server/blob/main/CHANGELOG.md
  - type: JSONSchema
    url: json-schema/jupyter-server-contents-model.json
  - type: JSONSchema
    url: json-schema/jupyter-server-kernel.json
  - type: JSONSchema
    url: json-schema/jupyter-server-session.json
  - type: JSONLDContext
    url: json-ld/jupyter-server-context.jsonld
- aid: jupyter-server:jupyter-server-sessions-api
  name: Jupyter Server Sessions API
  description: Notebook-kernel session management.
  humanURL: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html
  baseURL: http://localhost:8888/api
  tags:
  - Sessions
  properties:
  - type: OpenAPI
    url: openapi/jupyter-server-sessions-api-openapi.yml
  - type: Documentation
    url: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html
  - type: Repository
    url: https://github.com/jupyter-server/jupyter_server
  - type: ChangeLog
    url: https://github.com/jupyter-server/jupyter_server/blob/main/CHANGELOG.md
  - type: JSONSchema
    url: json-schema/jupyter-server-contents-model.json
  - type: JSONSchema
    url: json-schema/jupyter-server-kernel.json
  - type: JSONSchema
    url: json-schema/jupyter-server-session.json
  - type: JSONLDContext
    url: json-ld/jupyter-server-context.jsonld
- aid: jupyter-server:jupyter-server-terminals-api
  name: Jupyter Server Terminals API
  description: Terminal session management.
  humanURL: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html
  baseURL: http://localhost:8888/api
  tags:
  - Terminals
  properties:
  - type: OpenAPI
    url: openapi/jupyter-server-terminals-api-openapi.yml
  - type: Documentation
    url: https://jupyter-server.readthedocs.io/en/latest/developers/rest-api.html
  - type: Repository
    url: https://github.com/jupyter-server/jupyter_server
  - type: ChangeLog
    url: https://github.com/jupyter-server/jupyter_server/blob/main/CHANGELOG.md
  - type: JSONSchema
    url: json-schema/jupyter-server-contents-model.json
  - type: JSONSchema
    url: json-schema/jupyter-server-kernel.json
  - type: JSONSchema
    url: json-schema/jupyter-server-session.json
  - type: JSONLDContext
    url: json-ld/jupyter-server-context.jsonld
common:
- type: IssueTracker
  url: https://github.com/jupyter-server/jupyter_server/issues
- type: Releases
  url: https://github.com/jupyter-server/jupyter_server/releases
- type: CodeOfConduct
  url: https://github.com/jupyter-server/.github/blob/main/CODE_OF_CONDUCT.md
- type: ContributionGuide
  url: https://github.com/jupyter-server/jupyter_server/blob/main/CONTRIBUTING.rst
- type: License
  name: BSD-3-Clause
  url: https://github.com/jupyter-server/jupyter_server/blob/main/LICENSE
- type: AgenticAccess
  url: agentic-access/jupyter-server-agentic-access.yml
- type: DomainSecurity
  url: security/jupyter-server-domain-security.yml
- type: Authentication
  url: authentication/jupyter-server-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/project-jupyter
- type: Website
  url: https://jupyter-server.readthedocs.io/
- type: Documentation
  url: https://jupyter-server.readthedocs.io/en/latest/
- type: GettingStarted
  url: https://jupyter-server.readthedocs.io/en/latest/users/index.html
- type: GitHubOrganization
  url: https://github.com/jupyter-server
- type: Repository
  url: https://github.com/jupyter-server/jupyter_server
- type: Community
  url: https://discourse.jupyter.org/
- type: Security
  url: https://jupyter.org/security
- url: https://blog.jupyter.org/feed
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
  url: https://apievangelist.com