Hoppscotch website screenshot

Hoppscotch

Hoppscotch is a lightweight open-source browser-based API client supporting REST, GraphQL, WebSockets, SSE, and MQTT.

Hoppscotch publishes 1 API on the APIs.io network. Tagged areas include API Testing, Clients, GraphQL, Open Source, and Platform.

Hoppscotch’s developer surface includes pricing, documentation, getting-started guide, engineering blog, changelog, release notes, support, and 21 more developer resources.

🌐 Visit website 📡 Source on GitHub
30.9/100 thin ▬ flat Agent 11/100 agent aware Front door AI 1/6 silent open core · MIT Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0
AccessFreemium
1 APIs
API TestingClientsGraphQLOpen SourcePlatformRESTWebSocket

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0
Composite quality — 30.9/100 · thin
Contract Quality 0.0 / 21
Developer Ergonomics 6.1 / 17
Access Clarity 10.3 / 17
Operational Transparency 5.2 / 11
Contract Governance 0.0 / 10
Discoverability 5.0 / 9
Regulatory Posture 2.1 / 15
Agent readiness — 11/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 12 / 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
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/hoppscotch: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

What adopting Hoppscotch moves on the Kin Score 5

Hoppscotch is an area vendor: providers adopt it to run part of their developer surface. This is the Kin Score checks its features can move for a provider that adopts it, what each one really earns, and what it earns nothing for.

api collectionscapability map6 features checked 2026-09-25 · rubric v0.22.0

Hoppscotch can put three things a provider owns in front of the score: published collection docs, embeddable request widgets that let a reader run a call from the provider’s own page, and an OpenAPI 3.1 export that creates a contract where only a collection existed. All three count only once the provider publishes and declares them, and the generated contract is only as complete as the collection. A Hoppscotch collection is not a Postman collection, so postman_present is not in reach, and its MCP server gives agents Hoppscotch, not the provider’s API.

Agent Readiness1.8 of 139 pts
Contract Quality25.0 of 211 pts
Developer Ergonomics7.0 of 42 pts
CheckEarnsThrough
Request/Response Examplespartial
Agent ReadinessThe docs show example responses, but the dimension reads examples inside the OpenAPI first; a docs page reaches only the Examples-link fallback (0.25).		 1.8 of 7 API documentation published from collections
Publishes a machine-readable contractsaturated
Contract Quality95% of providers with a contract, docs and a reference already earn this; the vendor cannot move it for most of its buyers.		 20.0 of 20 OpenAPI 3.1 collection export
Documentationsaturated
Developer Ergonomics95% of providers with a contract, docs and a reference already earn this; the vendor cannot move it for most of its buyers.		 4.0 of 4 API documentation published from collections
Console or sandbox
Developer ErgonomicsEmbed the widgets on a page the provider controls and declare that page as Console or Playground.		 3.0 of 3 Widgets (links, buttons, embeds)
OpenAPI 3.1conditional
Contract QualityOnly if the provider publishes the exported 3.1 document as its contract rather than an older hand-written one.		 5.0 of 5 OpenAPI 3.1 collection export
Across 8977 providers that publish a contract, adopting Hoppscotch would move 8010. Median lift: composite +1.4 (90th percentile +3.3), agent readiness +1.2 (+1.3). Conditional rows excluded.
What Hoppscotch ships that earns nothing (3)
  • Collections import and export — The check reads Postman-typed pointers only; a Hoppscotch collection or published docs link is not one. The fetched page does not confirm a Postman-format export.
  • Hoppscotch MCP server — It exposes Hoppscotch’s own workspace to an agent, run locally; it is not an MCP server for the provider’s API.
  • API mock servers — Already reached through widgets; a mock of hand-typed responses adds nothing a second time and is not the API.

A model, not a score. Adopting this vendor changes a provider's Kin Score only when the provider publishes the resulting artifacts on its own surface; nothing here writes a score, and no sponsorship or partnership can. The rating is not for sale → · Full vendor facets artifact

APIs 1

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

Hoppscotch

Hoppscotch is a lightweight open-source browser-based API client supporting REST, GraphQL, WebSockets, SSE, and MQTT. It provides a minimalist, web-based API development suite w...

GraphQL 1

GraphQL schemas published by this provider.

Hoppscotch GraphQL API

The Hoppscotch backend exposes a GraphQL API used by the web, desktop, and CLI clients for team collaboration, personal workspaces, and infrastructure management in self-hosted ...

GRAPHQL

Pricing Plans 1

Published pricing tiers and plan structures.

Hoppscotch Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Hoppscotch Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Hoppscotch Finops

FINOPS

Security Posture 1

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

Hoppscotch Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted
GettingStarted
 Signup
Signup

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LlmsText
LlmsText

Build 2

SDKs, sample code, and the tooling you integrate with

GitHub
GitHub
 CLI
CLI

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Security
Security

Operate 7

Status, limits, changes, and where to get help

ChangeLog
ChangeLog
 ReleaseNotes
ReleaseNotes
 StatusPage
StatusPage
 Support
Support
 FAQ
FAQ
 Discord
Discord
 RateLimits
RateLimits

Scroll for all 7

Commercial 5

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy
 Plans
Plans
 FinOps
FinOps

Company 5

The organization behind the API

Website
Website
 About
About
 Blog
Blog
 Twitter
Twitter
 LinkedIn
LinkedIn

Other 3

Properties that don't map to a standard resource type

VendorFacets
VendorFacets
 SelfHost
SelfHost
 Downloads
Downloads

Source (apis.yml)

apis.yml Raw ↑ 
aid: hoppscotch
name: Hoppscotch
segments:
- Clients
description: Hoppscotch is a lightweight open-source browser-based API client supporting REST, GraphQL, WebSockets, SSE, and
  MQTT.
type: Index
deliveryModel:
  model: open-core
  license: MIT
  license_evidence:
    repo: hoppscotch/hoppscotch
    spdx: MIT
    stars: 80508
  open_source: true
  commercial: true
  callable_host: false
  label: Open core · an OSS project plus a commercial hosted product
  confidence: medium
  source:
  - pricing
  - repository-license
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/hoppscotch.png
tags:
- API Testing
- Clients
- GraphQL
- Open Source
- Platform
- REST
- WebSocket
tags_raw:
- API Testing
- Clients
- GraphQL
- Open Source
- Platform
- REST
- WebSockets
- Open-Source
created: '2026-03-03'
modified: '2026-04-28'
url: https://raw.githubusercontent.com/api-evangelist/hoppscotch/refs/heads/main/apis.yml
specificationVersion: '0.23'
apis:
- aid: hoppscotch:hoppscotch
  name: Hoppscotch
  description: Hoppscotch is a lightweight open-source browser-based API client supporting REST, GraphQL, WebSockets, SSE,
    and MQTT. It provides a minimalist, web-based API development suite with real-time collaboration, environment variables,
    collections, and test scripting across web, desktop, and CLI clients.
  humanURL: https://hoppscotch.com
  tags:
  - API Testing
  - Clients
  - Collaboration
  - GraphQL
  - MQTT
  - Open Source
  - REST
  - SSE
  - WebSocket
  tags_raw:
  - API Testing
  - Clients
  - Collaboration
  - GraphQL
  - MQTT
  - Open Source
  - REST
  - SSE
  - WebSockets
  - Open-Source
  properties:
  - type: Documentation
    url: https://docs.hoppscotch.io
  - type: GettingStarted
    url: https://docs.hoppscotch.io/documentation/getting-started/introduction
  - type: GitHubOrg
    url: https://github.com/hoppscotch
  - url: graphql/hoppscotch-graphql.md
    type: GraphQL
common:
- type: VendorFacets
  url: vendor-facets/hoppscotch-vendor-facets.yml
- type: DomainSecurity
  url: security/hoppscotch-domain-security.yml
- type: Website
  url: https://hoppscotch.com
- type: About
  url: https://hoppscotch.com/company
- type: Pricing
  url: https://hoppscotch.com/pricing
- type: Documentation
  url: https://docs.hoppscotch.io
- type: GettingStarted
  url: https://docs.hoppscotch.io/documentation/getting-started/introduction
- type: SelfHost
  url: https://docs.hoppscotch.io/documentation/self-host/getting-started
- type: Blog
  url: https://hoppscotch.com/blog
- type: ChangeLog
  url: https://hoppscotch.com/changelog
- type: ReleaseNotes
  url: https://hoppscotch.com/releases
- type: StatusPage
  url: https://status.hoppscotch.io
- type: Support
  url: https://docs.hoppscotch.io/support/getting-started/introduction
- type: FAQ
  url: https://docs.hoppscotch.io/support/getting-started/faq
- type: GitHub
  url: https://github.com/hoppscotch/hoppscotch
- type: CLI
  url: https://docs.hoppscotch.io/documentation/clients/cli/overview
- type: Downloads
  url: https://hoppscotch.com/download
- type: TermsOfService
  url: https://docs.hoppscotch.io/support/terms
- type: PrivacyPolicy
  url: https://docs.hoppscotch.io/support/privacy
- type: Security
  url: https://docs.hoppscotch.io/support/security-policy
- type: Discord
  url: https://discord.com/invite/GAMWxmR
- type: Twitter
  url: https://twitter.com/hoppscotch_io
- type: LinkedIn
  url: https://www.linkedin.com/company/hoppscotch
- type: Signup
  url: https://hoppscotch.io
- type: LlmsText
  url: https://docs.hoppscotch.io/llms.txt
- url: plans/hoppscotch-plans.md
  type: Plans
- url: rate-limits/hoppscotch-rate-limits.md
  type: RateLimits
- url: finops/hoppscotch-finops.md
  type: FinOps
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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