arena.channel_contents

stable Advanced

Latest blocks in an Are.na channel.

GET /v1/arena/channel_contents

What you get#

A list of Arena results in Onekey's unified shape, in data (an array). An empty array is a normal, successful answer and is charged like any other; a source that reports "nothing found" as an error returns a free 404 not_found instead.

What it costs#

Advanced · 5 credits for a fresh fetch, charged only when it succeeds.
Free when served from cache (0.2 credit for a cached response over 100 KB).
Free if the request is invalid (never charged) or the source fails or reports not found (refunded).

Parameters#

Name	Type	Required	Default	What it is	Constraints
`channel`	string	yes	(required)	Channel slug, e.g. arena-influences	max 120 chars; must match `[A-Za-z0-9_-]{2,120}`; trimmed

Request#

curl "https://api.onekey.dev/v1/arena/channel_contents?channel=arena-influences" \
  -H "x-api-key: YOUR_API_KEY"

Try it

Add your key to run this call right here. No key? Get one free. The key stays in this tab.

Recorded response#

A real Arena response, recorded and returned in Onekey's shape. Fields the platform does not provide are null.

json

{
  "success": true,
  "data": [
    {
      "content": {
        "id": "3235876",
        "title": "Isaac Asimov Asks, \"How Do People Get New Ideas?\"",
        "text": "",
        "url": "https://www.technologyreview.com/s/531911/isaac-asimov-asks-how-do-people-get-new-ideas/",
        "createdAt": "2018-12-19T20:35:55Z"
      },
      "entity": {
        "type": "Link"
      },
      "media": {
        "thumbnailUrl": "https://images.are.na/eyJidWNrZXQiOiJhcmVuYV9pbWFnZXMiLCJrZXkiOiIzMjM1ODc2L29yaWdpbmFsXzc2ZWFkM2NhYzI1ZTQzNzFhYTliOTJhOTQ5OTNmOWY3LnBuZyIsImVkaXRzIjp7InJlc2l6ZSI6eyJ3aWR0aCI6MTIwMCwiaGVpZ2h0IjoxMjAwLCJmaXQiOiJpbnNpZGUiLCJ3aXRob3V0RW5sYXJnZW1lbnQiOnRydWV9LCJ3ZWJwIjp7InF1YWxpdHkiOjc1fSwianBlZyI6eyJxdWFsaXR5Ijo3NX0sInJvdGF0ZSI6bnVsbH19?bc=0"
      },
      "author": {
        "username": "Charles Broskoski"
      },
      "engagement": {
        "comments": 0
      }
    },
    {
      "content": {
        "id": "76969",
        "title": "The Working Sheepdog ( Border Collies ) in training",
        "text": null,
        "url": "https://www.youtube.com/watch?v=B0sO1wdBhMY",
        "createdAt": "2013-02-12T22:40:15Z"
      },
      "entity": {
        "type": "Media"
      },
      "media": {
        "thumbnailUrl": "https://images.are.na/eyJidWNrZXQiOiJhcmVuYV9pbWFnZXMiLCJrZXkiOiI3Njk2OS9vcmlnaW5hbF84MTI1YTFiNjQ0NzAyNzQ1Y2QxMTk5MDNkNzdiODYwZi5qcGciLCJlZGl0cyI6eyJyZXNpemUiOnsid2lkdGgiOjEyMDAsImhlaWdodCI6MTIwMCwiZml0IjoiaW5zaWRlIiwid2l0aG91dEVubGFyZ2VtZW50Ijp0cnVlfSwid2VicCI6eyJxdWFsaXR5Ijo3NX0sImpwZWciOnsicXVhbGl0eSI6NzV9LCJyb3RhdGUiOm51bGx9fQ==?bc=0"
      },
      "author": {
        "username": "Chris Sherrón"
      },
      "engagement": {
        "comments": 0
      }
    }
  ],
  "metadata": {
    "platform": "arena",
    "endpoint": "channel_contents",
    "cached": false,
    "stale": false,
    "age_s": 0,
    "fetched_at": "2026-01-01T12:00:00+00:00",
    "credits_charged": 5,
    "request_id": "7f3a9c2e5b1d4c8fa2e6d0b9c4f18e37"
  },
  "error": null
}

Field mapping#

How this endpoint's source fields become Onekey's unified schema. Fields the source lacks come back as null.

Source path	Onekey field	Transform
`id`	`content.id`	`toString`
`title`	`content.title`	-
`class`	`entity.type`	-
`content`	`content.text`	-
`source.url`	`content.url`	`safeUrl`
`image.display.url`	`media.thumbnailUrl`	`safeUrl`
`user.username`	`author.username`	-
`created_at`	`content.createdAt`	`toIsoDate`
`comment_count`	`engagement.comments`	`toNumber`

Caching and freshness#

Fresh for about 2 minutes. Repeat calls in that window are served from cache and are free.
Between 2 minutes and 15 minutes the cached copy is still served instantly and marked stale: true while Onekey refreshes it in the background.
If the source is down when a refresh is needed, the last copy can be served for up to 1 hour more (marked stale).
A "not found" is remembered for 1 minute and is free.
The cache is shared across all customers, which is what keeps repeat calls cheap.

What can go wrong#

Status	Code	What to do
401	`unauthorized`	Check the `x-api-key` header.
402	`insufficient_credits`	Add credits; your balance must cover the price.
404	`not_found`	Unknown endpoint path.
422	`invalid_params`	Fix the parameters using the table above. Free.
429	`rate_limited`	Wait `Retry-After` seconds, then retry.
502	`upstream_error`	The source failed. Refunded; retry with backoff.

See Errors for the full list and retry guidance.

Status: stable (verified against the live source).