Logseq

Logseq is a privacy-first, open-source platform for knowledge management and collaboration, built around a local-first outliner that stores notes as plain Markdown and Org-mode files linked into a personal knowledge graph. Its developer surface is a JavaScript/TypeScript plugin SDK (@logseq/libs) plus an in-app HTTP APIs server that exposes the same Editor and App proxy methods to local automation; there is no hosted public REST API. The project is developed in Clojure/ClojureScript, licensed AGPL-3.0, and backed by a16z.

Logseq is profiled on the APIs.io network. Tagged areas include Company, Knowledge Management, Note Taking, Productivity, and Open Source.

Logseq’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, changelog, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

21.8/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyKnowledge ManagementNote TakingProductivityOpen SourcePluginsSDKKnowledge GraphMarkdownLocal-FirstDeveloper Tools

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 21.8/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 9.6 / 20

Commercial Clarity 2.1 / 20

Operational Transparency 3.4 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

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/logseq: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Roadmap

Roadmap

Support

Support

ChangeLog

ChangeLog

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: logseq
name: Logseq
description: Logseq is a privacy-first, open-source platform for knowledge management and collaboration, built around a local-first
  outliner that stores notes as plain Markdown and Org-mode files linked into a personal knowledge graph. Its developer surface
  is a JavaScript/TypeScript plugin SDK (@logseq/libs) plus an in-app HTTP APIs server that exposes the same Editor and App
  proxy methods to local automation; there is no hosted public REST API. The project is developed in Clojure/ClojureScript,
  licensed AGPL-3.0, and backed by a16z.
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://avatars.githubusercontent.com/u/63385289?v=4
url: https://raw.githubusercontent.com/api-evangelist/logseq/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Knowledge Management
- Note Taking
- Productivity
- Open Source
- Plugins
- SDK
- Knowledge Graph
- Markdown
- Local-First
- Developer Tools
apis: []
common:
- type: Website
  url: https://logseq.com
- type: DeveloperPortal
  url: https://plugins-doc.logseq.com
- type: Documentation
  url: https://docs.logseq.com
- type: APIReference
  url: https://plugins-doc.logseq.com
- type: GettingStarted
  url: https://logseq.github.io/plugins/
- type: Blog
  url: https://blog.logseq.com
- type: GitHubOrganization
  url: https://github.com/logseq
- type: Roadmap
  url: https://logseq.io/p/NX4mc_ggEV
- type: Support
  url: https://discuss.logseq.com
- type: PrivacyPolicy
  url: https://blog.logseq.com/privacy-policy
- type: Packages
  url: packages/logseq-packages.yml
- type: SDKs
  url: packages/logseq-packages.yml
- type: ChangeLog
  url: changelog/logseq-changelog.yml
- type: LLMsTxt
  url: llms/logseq-llms.txt
- type: DomainSecurity
  url: security/logseq-domain-security.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 4
  pass: local-v1