# free-public-apis/apis architecture

> Architecture diagram of the GitHub repository free-public-apis/apis, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-28). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/free-public-apis/apis
- Repository: https://github.com/free-public-apis/apis

## Overview

Free Public APIs is a curated directory, not an API runtime: its README organizes third-party APIs by category and documents each with a description and access metadata. The principal workflow is to browse the index, inspect a category listing, choose an API, and use that provider independently. The file tree contains no implementation or separate catalog data files, so the graph represents the documented directory only; provider integrations are not repository calls.

Main entry points: [`README.md`](https://github.com/free-public-apis/apis/blob/master/README.md) (Category index)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_discovery_content["Discovery & content"]
  node_discovery_categories["Animals, anime, books<br/>[README.md]"]
end

subgraph group_developer_services["Developer services"]
  node_service_categories["Development, security<br/>[README.md]"]
end

subgraph group_data_finance["Data &amp; finance"]
  node_data_categories["Finance, science, open data<br/>[README.md]"]
end

subgraph group_public_life["Public &amp; daily life"]
  node_life_categories["Health, jobs, transport<br/>[README.md]"]
end

subgraph group_media_community["Media &amp; community"]
  node_media_categories["Music, news, social<br/>[README.md]"]
end

node_developer(("Developer"))
node_catalog_index["Category index<br/>[README.md]"]
node_provider{{"Listed API provider"}}

node_developer -->|"browses"| node_catalog_index
node_catalog_index -->|"links to"| node_discovery_categories
node_catalog_index -->|"links to"| node_service_categories
node_catalog_index -->|"links to"| node_data_categories
node_catalog_index -->|"links to"| node_life_categories
node_catalog_index -->|"links to"| node_media_categories
node_discovery_categories -->|"lists options"| node_provider
node_service_categories -->|"lists options"| node_provider
node_data_categories -->|"lists options"| node_provider
node_life_categories -->|"lists options"| node_provider
node_media_categories -->|"lists options"| node_provider

click node_catalog_index "https://github.com/free-public-apis/apis/blob/master/README.md"
click node_discovery_categories "https://github.com/free-public-apis/apis/blob/master/README.md"
click node_service_categories "https://github.com/free-public-apis/apis/blob/master/README.md"
click node_data_categories "https://github.com/free-public-apis/apis/blob/master/README.md"
click node_life_categories "https://github.com/free-public-apis/apis/blob/master/README.md"
click node_media_categories "https://github.com/free-public-apis/apis/blob/master/README.md"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_discovery_categories toneBlue
class node_service_categories toneAmber
class node_data_categories,node_provider toneMint
class node_life_categories toneRose
class node_media_categories,node_developer toneIndigo
class node_catalog_index toneTeal
```

## Components

### Discovery & content

- [Animals, anime, books](https://github.com/free-public-apis/apis/blob/master/README.md): `README.md`

### Developer services

- [Development, security](https://github.com/free-public-apis/apis/blob/master/README.md): `README.md`

### Data & finance

- [Finance, science, open data](https://github.com/free-public-apis/apis/blob/master/README.md): `README.md`

### Public & daily life

- [Health, jobs, transport](https://github.com/free-public-apis/apis/blob/master/README.md): `README.md`

### Media & community

- [Music, news, social](https://github.com/free-public-apis/apis/blob/master/README.md): `README.md`

### Other components

- **Developer**
- [Category index](https://github.com/free-public-apis/apis/blob/master/README.md): `README.md`
- **Listed API provider**

## Connections

- Developer → Category index: browses
- Category index → Animals, anime, books: links to
- Category index → Development, security: links to
- Category index → Finance, science, open data: links to
- Category index → Health, jobs, transport: links to
- Category index → Music, news, social: links to
- Animals, anime, books → Listed API provider: lists options
- Development, security → Listed API provider: lists options
- Finance, science, open data → Listed API provider: lists options
- Health, jobs, transport → Listed API provider: lists options
- Music, news, social → Listed API provider: lists options