Voiden website screenshot

Voiden

Voiden is an offline-first, Git-native API workspace that unifies API design, testing, and documentation in plain Markdown .void files stored alongside your codebase. It uses composable, reusable blocks (endpoints, auth, headers, params, bodies) that behave like code — inheritable, versionable, and composable — eliminating copy-paste drift across API definitions. Supports REST, GraphQL, WebSocket, and gRPC. Built on Electron (TypeScript), Apache 2.0 licensed.

Voiden publishes 1 API on the APIs.io network. Tagged areas include API Design, API Testing, API Documentation, Developer Tools, and Git Native.

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

Voiden’s developer surface includes engineering blog and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub
33.0/100 thin ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemium
1 APIs
API DesignAPI TestingAPI DocumentationDeveloper ToolsGit NativeMarkdown

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 33.0/100 · thin
Contract Quality 5.7 / 25
Developer Ergonomics 0.4 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.1 / 13
Governance 8.3 / 12
Discoverability 6.7 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
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 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/voiden: 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 1

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

Voiden Desktop Tool

Voiden is a desktop application (Electron/TypeScript) for API design, testing, and documentation using .void file format — plain Markdown with structured request blocks. Feature...

GraphQL 1

GraphQL schemas published by this provider.

Voiden GraphQL API

GRAPHQL

Pricing Plans 1

Published pricing tiers and plan structures.

Voiden Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Voiden Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Voiden Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Voiden Context

14 classes · 0 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Voiden API Rules

6 rules · 5 warnings 1 info

SPECTRAL

JSON Schema 1

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

Voiden .void File

5 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Voiden Void File Structure

0 properties

JSON STRUCTURE

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Voiden Domain Security

TLSv1.3

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

JSONSchema
JSONSchema

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

JSONStructure
JSONStructure
 JSONLD
JSONLD
 Vocabulary
Vocabulary

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubRepository
GitHubRepository

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Commercial 1

Pricing, plans, and the legal terms of use

License
License

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: voiden
name: Voiden
description: Voiden is an offline-first, Git-native API workspace that unifies API design, testing, and documentation in plain
  Markdown .void files stored alongside your codebase. It uses composable, reusable blocks (endpoints, auth, headers, params,
  bodies) that behave like code — inheritable, versionable, and composable — eliminating copy-paste drift across API definitions.
  Supports REST, GraphQL, WebSocket, and gRPC. Built on Electron (TypeScript), Apache 2.0 licensed.
type: Index
url: https://voiden.md/
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/voiden.png
tags:
- API Design
- API Testing
- API Documentation
- Developer Tools
- Git Native
- Markdown
created: '2026-01-02'
modified: '2026-05-03'
specificationVersion: '0.19'
apis:
- aid: voiden:voiden-tool
  name: Voiden Desktop Tool
  description: Voiden is a desktop application (Electron/TypeScript) for API design, testing, and documentation using .void
    file format — plain Markdown with structured request blocks. Features reusable blocks with inheritance and composition,
    Git-native versioning, batch request execution with assertions, OpenAPI and Postman import, pre/post-request scripting
    (JavaScript, Python, shell), and offline-first operation. No public REST API.
  humanURL: https://voiden.md/
  tags:
  - Desktop App
  - API Workspace
  - Developer Tools
  properties:
  - type: Documentation
    url: https://voiden.md/
  - type: GitHubRepository
    url: https://github.com/VoidenHQ/voiden
  - type: JSONSchema
    url: json-schema/voiden-void-file-schema.json
  - url: graphql/voiden-graphql.md
    type: GraphQL
common:
- type: DomainSecurity
  url: security/voiden-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/showcase/voiden
- type: Website
  url: https://voiden.md/
- type: GitHubRepository
  url: https://github.com/VoidenHQ/voiden
- type: JSONSchema
  url: json-schema/voiden-void-file-schema.json
- type: JSONStructure
  url: json-structure/voiden-void-file-structure.json
- type: JSONLD
  url: json-ld/voiden-context.jsonld
- type: Vocabulary
  url: vocabulary/voiden-vocabulary.yml
- type: Blog
  url: https://voiden.md/blog/
- type: License
  url: https://github.com/VoidenHQ/voiden/blob/main/LICENSE
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com