Restfox website screenshot

Restfox

Restfox is an offline-first, minimalistic HTTP and socket testing client for the web and desktop. It is an open-source alternative to Postman, supporting HTTP/REST, WebSocket, and GraphQL testing with environment variables, response history, a plugin system, and cross-platform deployment as a web app, desktop client, or Docker container.

Restfox publishes 1 API on the APIs.io network. Tagged areas include API Testing, HTTP Client, Browser, Desktop, and Open Source.

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

Restfox’s developer surface includes documentation, release notes, and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub
35.1/100 thin ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemium
1 APIs
API TestingHTTP ClientBrowserDesktopOpen SourceGraphQLWebSocket

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 35.1/100 · thin
Contract Quality 5.7 / 25
Developer Ergonomics 1.7 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 6.8 / 13
Governance 7.0 / 12
Discoverability 5.9 / 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/restfox: 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.

Restfox

Restfox is a lightweight, offline-first web HTTP client for testing REST APIs, similar to Postman but browser-based. It supports HTTP, WebSocket, and GraphQL protocols, with fea...

GraphQL 1

GraphQL schemas published by this provider.

Restfox GraphQL API

Restfox is a lightweight, offline-first web HTTP client for testing REST APIs, similar to Postman but browser-based. It supports HTTP, WebSocket, and GraphQL protocols, with fea...

GRAPHQL

Pricing Plans 1

Published pricing tiers and plan structures.

Restfox Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Restfox Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Restfox Finops

FINOPS

Semantic Vocabularies 1

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

Restfox Context

26 classes · 0 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Restfox API Rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 1

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

Restfox Collection

7 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Restfox Collection Structure

0 properties

JSON STRUCTURE

Examples 2

Example request and response payloads for these APIs.

Restfox Http Get Example

4 fields

EXAMPLE

Restfox Websocket Example

4 fields

EXAMPLE

Security Posture 1

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

Restfox Domain Security

TLSv1.3

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

ReleaseNotes
ReleaseNotes

Company 1

The organization behind the API

Website
Website

Other 1

Properties that don't map to a standard resource type

Docker
Docker

Source (apis.yml)

apis.yml Raw ↑ 
aid: restfox
name: Restfox
description: Restfox is an offline-first, minimalistic HTTP and socket testing client for the web and desktop. It is an open-source
  alternative to Postman, supporting HTTP/REST, WebSocket, and GraphQL testing with environment variables, response history,
  a plugin system, and cross-platform deployment as a web app, desktop client, or Docker container.
type: Index
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/restfox.png
tags:
- API Testing
- HTTP Client
- Browser
- Desktop
- Open Source
- GraphQL
- WebSocket
url: https://raw.githubusercontent.com/api-evangelist/restfox/refs/heads/main/apis.yml
created: '2026-03-27'
modified: '2026-05-02'
specificationVersion: '0.19'
apis:
- aid: restfox:restfox
  name: Restfox
  description: Restfox is a lightweight, offline-first web HTTP client for testing REST APIs, similar to Postman but browser-based.
    It supports HTTP, WebSocket, and GraphQL protocols, with features including environment variables, response history, and
    an extensible plugin system. Available as a web app, desktop application for macOS, Windows, and Linux, and as a Docker
    container.
  humanURL: https://restfox.dev/
  tags:
  - API Testing
  - HTTP Client
  - Browser
  - Desktop
  - Open Source
  - GraphQL
  - WebSocket
  properties:
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/restfox/refs/heads/main/json-schema/restfox-collection-schema.json
  - type: Vocabulary
    url: https://raw.githubusercontent.com/api-evangelist/restfox/refs/heads/main/vocabulary/restfox-vocabulary.yml
  - type: Documentation
    url: https://docs.restfox.dev/
  - type: GettingStarted
    url: https://restfox.dev/
  - type: GitHubRepository
    url: https://github.com/flawiddsouza/Restfox
  - type: Docker
    url: https://hub.docker.com/r/flawiddsouza/restfox
  - url: graphql/restfox-graphql.md
    type: GraphQL
common:
- type: DomainSecurity
  url: security/restfox-domain-security.yml
- type: Website
  url: https://restfox.dev/
- type: Documentation
  url: https://docs.restfox.dev/
- type: GitHubOrganization
  url: https://github.com/flawiddsouza/Restfox
- type: Docker
  url: https://hub.docker.com/r/flawiddsouza/restfox
- type: ReleaseNotes
  url: https://github.com/flawiddsouza/Restfox/releases
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com