# devto.articles_by_tag

**stable** **Advanced**

Latest DEV articles for a tag.

`GET /v1/devto/articles_by_tag`

## What you get

A list of DEV Community 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 |
| --- | --- | --- | --- | --- | --- |
| `tag` | string | yes | (required) | Tag, e.g. javascript | max 40 chars; must match `[a-z0-9]{1,40}`; trimmed, lowercased |

## Request

```bash
curl "https://api.onekey.dev/v1/devto/articles_by_tag?tag=javascript" \
  -H "x-api-key: YOUR_API_KEY"
```

```python
import requests

res = requests.get(
    "https://api.onekey.dev/v1/devto/articles_by_tag",
    params={"tag": "javascript"},
    headers={"x-api-key": "YOUR_API_KEY"},
)
body = res.json()

if body["success"]:
    print(body["data"])
else:
    print(body["error"]["code"], body["error"]["message"])
```

```javascript
const params = new URLSearchParams({ tag: "javascript" });
const res = await fetch(`https://api.onekey.dev/v1/devto/articles_by_tag?${params}`, {
  headers: { "x-api-key": "YOUR_API_KEY" },
});
const body = await res.json();

if (body.success) console.log(body.data);
else console.error(body.error.code, body.error.message);
```

## Recorded response

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

```json
{
  "success": true,
  "data": [
    {
      "content": {
        "id": "4762041",
        "title": "The 7 Walls JavaScript Hits — and How WebAssembly Gets Past Them",
        "url": "https://dev.to/james_anderson_h/the-7-walls-javascript-hits-and-how-webassembly-gets-past-them-3khk",
        "text": "Every time Figma renders a complex design instantly, or Google Sheets recalculates a huge spreadsheet...",
        "createdAt": "2026-09-28T09:15:48Z",
        "language": "en"
      },
      "author": {
        "username": "james_anderson_h",
        "displayName": "James Anderson",
        "id": "3968038",
        "avatarUrl": "https://media2.dev.to/dynamic/image/width=640,height=640,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3968038%2Fe70ff7fe-85b0-4c3a-8a68-b2269cd108b7.png"
      },
      "engagement": {
        "likes": 25,
        "comments": 14
      },
      "media": {
        "thumbnailUrl": "https://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2Fca4frk0zhq5jbegyd0hc.png"
      }
    },
    {
      "content": {
        "id": "4759196",
        "title": "React and Vue Are Turning Into the Same Framework",
        "url": "https://dev.to/nazar-boyko/react-and-vue-are-turning-into-the-same-framework-2aph",
        "text": "Before diving into this article, I have to say that I haven't been a front-end developer for a very,...",
        "createdAt": "2026-09-28T14:26:49Z",
        "language": "en"
      },
      "author": {
        "username": "nazar-boyko",
        "displayName": "Nazar Boyko",
        "id": "1875383",
        "avatarUrl": "https://media2.dev.to/dynamic/image/width=640,height=640,fit=cover,gravity=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F1875383%2F1b3f5dc9-df1c-4551-9f6e-e3b6234b3d6c.gif"
      },
      "engagement": {
        "likes": 32,
        "comments": 4
      },
      "media": {
        "thumbnailUrl": "https://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2Faelxfbcuautj48eyvzzy.jpg"
      }
    }
  ],
  "metadata": {
    "platform": "devto",
    "endpoint": "articles_by_tag",
    "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](https://onekey.dev/docs/schema.md). Fields the source lacks come back as `null`.

| Source path | Onekey field | Transform |
| --- | --- | --- |
| `id` | `content.id` | `toString` |
| `title` | `content.title` | - |
| `url` | `content.url` | `safeUrl` |
| `description` | `content.text` | - |
| `published_at` | `content.createdAt` | `toIsoDate` |
| `language` | `content.language` | - |
| `user.username` | `author.username` | - |
| `user.name` | `author.displayName` | - |
| `user.user_id` | `author.id` | `toString` |
| `user.profile_image` | `author.avatarUrl` | `safeUrl` |
| `public_reactions_count` | `engagement.likes` | `toNumber` |
| `comments_count` | `engagement.comments` | `toNumber` |
| `cover_image` | `media.thumbnailUrl` | `safeUrl` |

## 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](https://onekey.dev/pricing); 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](https://onekey.dev/docs/errors.md) for the full list and retry guidance.

Status: stable (verified against the live source).