obsidian

Obsidian is a local-first notes and knowledge-base application that lets you create and manage markdown files (vaults) with extensions and plugins, providing organization, search, and knowledge workflows.

Evaluated Mar 30, 2026 (29d ago)
Homepage ↗ Repo ↗ Cms notes markdown local-first knowledge-management pkm productivity desktop-app plugins writing
⚙ Agent Friendliness
31
/ 100
Can an agent use this?
🔒 Security
34
/ 100
Is it safe for agents?
⚡ Reliability
35
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
0
Documentation
35
Error Messages
0
Auth Simplicity
90
Rate Limits
0

🔒 Security

TLS Enforcement
30
Auth Strength
35
Scope Granularity
30
Dep. Hygiene
35
Secret Handling
40

Local-first desktop app use reduces network attack surface for basic note operations, but security depends heavily on how syncing/publishing plugins are configured. Provided content does not include details on TLS/auth for any network services, scope granularity, secret handling, or dependency hygiene.

⚡ Reliability

Uptime/SLA
0
Version Stability
60
Breaking Changes
40
Error Recovery
40
AF Security Reliability

Best When

You want an offline-capable, local markdown vault and are willing to use extensions/plugins for integrations.

Avoid When

You need a first-class, documented programmatic API for other services to integrate directly (beyond local/plugin interfaces) or you require strict enterprise compliance features out of the box.

Use Cases

  • Personal knowledge management (PKM) with markdown notes
  • Writing and maintaining documentation in markdown
  • Building a link-based knowledge base (wiki/graph style workflows)
  • Research notes and tagging workflows
  • Using plugins to add publishing, syncing, templates, and integrations

Not For

  • Use as a standalone web API for programmatic note CRUD (primarily a desktop/mobile app)
  • Use as a secure multi-tenant collaboration platform without additional tooling
  • Use for environments requiring strict centralized data governance by default

Interface

REST API
No
GraphQL
No
gRPC
No
MCP Server
No
SDK
No
Webhooks
No

Authentication

Methods: None for basic local use (desktop/mobile app). Plugin-specific integrations may require user-provided credentials, but no universal auth interface is described in provided content.
OAuth: No Scopes: No

Authentication is not a single standardized API auth scheme; access is typically local to the user’s device, with optional account features/third-party integrations depending on plugins and sync/publishing choices.

Pricing

Free tier: No
Requires CC: No

Pricing details are not included in the provided prompt content, so defaults are used.

Agent Metadata

Pagination
none
Idempotent
False
Retry Guidance
Not documented

Known Gotchas

  • No single stable, documented public API surface (REST/GraphQL/etc.) for agent-driven operations is evident from provided content.
  • Integration is likely via plugins/extensions and/or filesystem/local vault access patterns rather than a formal service API.
  • Agent workflows may fail if vault paths, sync state, or plugin availability differ across environments.

Alternatives

Full Evaluation Report

Comprehensive deep-dive: security analysis, reliability audit, agent experience review, cost modeling, competitive positioning, and improvement roadmap for obsidian.

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$3

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Scores are editorial opinions as of 2026-03-30.

8642
Packages Evaluated
17761
Need Evaluation
586
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