Build with the API

Pick an endpoint. Open the JSON. Start building.

REST · JSON

Base URL This site’s origin + /apiNo authCORS *No cache

Endpoints 3

GET/api/articlesList articles

Query parameters

Parameter	Default	Range
`limit`	12	Integer 1–100
`offset`	0	Integer ≥ 0

Returns ArticleSummary[]. No body.

12 fixtures. Past the last item? Returns [].

Open JSON ?limit=2&offset=0

200 Example item in the array

[
  {
    "id": "bitcoin-finds-its-footing",
    "title": "Bitcoin finds its footing as investors take the long view",
    "category": "Markets",
    "publishedAt": "2026-09-05T08:00:00Z",
    "image": {
      "url": "https://<api-host>/images/bitcoin.jpg",
      "alt": "Bitcoin coins"
    }
  }
]

GET/api/articles/:idFull article

Path parameter

Parameter	Value
`id` required	Exact ID from the article list

Returns Article: summary fields + body.

Unknown ID → 404.

Open JSON

200 Example article

{
  "id": "bitcoin-finds-its-footing",
  "title": "Bitcoin finds its footing as investors take the long view",
  "category": "Markets",
  "publishedAt": "2026-09-05T08:00:00Z",
  "image": {
    "url": "https://<api-host>/images/bitcoin.jpg",
    "alt": "Bitcoin coins"
  },
  "body": "<p>Article text…</p><h2>A longer view</h2>"
}

GET/api/prices6 assets · updates every 5s

No parameters required

Returns Price[]: BTC, ETH, SOL, XRP, DOGE, USDC.

Poll every 5 seconds for new simulated quotes.

Field	Read as
`price`	Decimal string
`decimals`	USD precision: ETH → $2,635.56
`change24h`	`"0.87"` → +0.87%

BTC / ETH / SOL: 2 decimals · XRP / USDC: 4 · DOGE: 5. USDC stays near $1.

Open JSON

200 Example item in the array

[
  {
    "symbol": "ETH",
    "name": "Ethereum",
    "price": "2635.56000000",
    "decimals": 2,
    "change24h": "0.87"
  }
]

Four fields to notice

publishedAt: ISO UTC.
image: null or { url, alt }. Absolute URL.
body: HTML string. Title & hero are separate.
price: String. Format with the asset’s decimals.

The API reflects the state of the world. Handle what it gives you.

Test loading & errors

Works on every endpoint. Combine with &.

?latency=30003s delay ↗

Integer milliseconds · 0–10000 · default 0

?fail=1HTTP 500 ↗

Failure follows the requested delay.

Error codes & response

Status	Meaning
400	Invalid numeric parameter
404	Unknown article ID
500	Simulated failure

{ "error": "Simulated API failure" }

TypeScript types

Copy into your project.

export type ArticleSummary = {
  id: string;
  title: string;
  category: string;
  publishedAt: string; // ISO 8601, UTC
  image: { url: string; alt: string } | null;
};

export type Article = ArticleSummary & {
  body: string; // HTML
};

export type Price = {
  symbol: string;
  name: string;
  price: string; // full precision
  decimals: number; // digits to display
  change24h: string; // percent
};

Response headers: Access-Control-Allow-Origin: * · Cache-Control: no-store