Fluid website screenshot

Fluid

A responsive front-end framework for building flexible and adaptive web layouts.

Fluid publishes 1 API on the APIs.io network. Tagged areas include CSS Framework, Front-End, and Responsive Design.

Fluid’s developer surface includes documentation and 7 more developer resources.

📡 Source on GitHub
16.6/100 emerging ▬ flat Agent 3/100 human only self hosted · MIT Full breakdown ↓
scored 2026-08-30 · rubric v0.17.2
AccessFreemium
1 APIs
CSS FrameworkFront-EndResponsive Design

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-30 · rubric v0.17.2
Composite quality — 16.6/100 · emerging
Contract Quality 0.0 / 23
Developer Ergonomics 3.0 / 18
Access Clarity 2.8 / 18
Operational Transparency 3.1 / 12
Contract Governance 0.0 / 11
Discoverability 3.7 / 9
Open Source Surface 4.0 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
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
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Surface 0 / 5
Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against it.
The six quality facets above are damped to 90 points between them, because the conditional facet above carries the other 10. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 90% 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/. This rating is computed from github.com/api-evangelist/fluid: 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.

Fluid CSS Framework

Fluid is a CSS framework that provides a responsive grid system, UI components, and utility classes for building flexible and adaptive web layouts. It uses ITCSS architecture fo...

Pricing Plans 1

Published pricing tiers and plan structures.

Fluid Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Fluid Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Fluid Finops

FINOPS

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Build 3

SDKs, sample code, and the tooling you integrate with

CodeOfConduct
CodeOfConduct
 GitHubOrganization
GitHubOrganization
 SDKs
SDKs

Operate 2

Status, limits, changes, and where to get help

IssueTracker
IssueTracker
 Releases
Releases

Commercial 1

Pricing, plans, and the legal terms of use

License
License

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: fluid
name: Fluid
description: A responsive front-end framework for building flexible and adaptive web layouts.
type: Index
deliveryModel:
  model: self-hosted
  license: MIT
  open_source: true
  commercial: false
  callable_host: false
  label: Self-hosted open source · you run it yourself
  confidence: high
  source:
  - license
  generated: '2026-08-28'
  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
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/fluid.png
url: https://raw.githubusercontent.com/api-evangelist/fluid/refs/heads/main/apis.yml
created: '2025-01-01'
modified: '2026-04-28'
specificationVersion: '0.23'
tags:
- CSS Framework
- Front-End
- Responsive Design
tags_raw:
- CSS Framework
- Front-End
- Responsive Design
apis:
- aid: fluid:fluid-css-framework
  name: Fluid CSS Framework
  description: Fluid is a CSS framework that provides a responsive grid system, UI components, and utility classes for building
    flexible and adaptive web layouts. It uses ITCSS architecture for its file and folder structure and is distributed as
    a stylesheet that can be included via CDN or npm.
  humanURL: https://github.com/fluid-framework/Fluid
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  properties:
  - type: Documentation
    url: https://github.com/fluid-framework/Fluid-docs
  - type: GitHubRepository
    url: https://github.com/fluid-framework/Fluid
  tags:
  - CSS Framework
  - Front-End
  - Grid System
  - Responsive Design
  tags_raw:
  - CSS Framework
  - Front-End
  - Grid System
  - Responsive Design
common:
- type: IssueTracker
  url: https://github.com/fluid-framework/Fluid/issues
- type: Releases
  url: https://github.com/fluid-framework/Fluid/releases
- type: CodeOfConduct
  url: https://github.com/fluid-framework/Fluid/blob/master/CODE_OF_CONDUCT.md
- type: License
  name: MIT
  url: https://github.com/fluid-framework/Fluid/blob/master/LICENSE
- type: Website
  url: https://github.com/fluid-framework/Fluid
- type: GitHubOrganization
  url: https://github.com/fluid-framework
- type: Documentation
  url: https://github.com/fluid-framework/Fluid-docs
- type: SDKs
  url: https://www.npmjs.com/package/fluid-css
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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