# bluesky.reposted_by

**stable** **Advanced**

Accounts that reposted a Bluesky post.

`GET /v1/bluesky/reposted_by`

## What you get

A list of Bluesky 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.

**Pagination:** 20 results per page. The response carries a `pagination` block; send its `next_cursor` back as the `cursor` parameter to get the next page. Every page is one call at the price below. See [Pagination](https://onekey.dev/docs/pagination.md).

## 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 |
| --- | --- | --- | --- | --- | --- |
| `uri` | string | yes | (required) | Post AT URI | max 255 chars; must match `at://[A-Za-z0-9:._-]{3,100}/[A-Za-z.]{3,60}/[A-Za-z0-9._~-]{1,64}`; trimmed |
| `cursor` | string | no | - | Opaque cursor from a previous response's `pagination.next_cursor`. Omit for the first page. | - |

## Request

```bash
curl "https://api.onekey.dev/v1/bluesky/reposted_by?uri=at%3A%2F%2Fdid%3Aplc%3Az72i7hdynmk6r22z27h6tvur%2Fapp.bsky.feed.post%2F3mw2cdr44fc2a" \
  -H "x-api-key: YOUR_API_KEY"
```

```python
import requests

res = requests.get(
    "https://api.onekey.dev/v1/bluesky/reposted_by",
    params={"uri": "at://did:plc:z72i7hdynmk6r22z27h6tvur/app.bsky.feed.post/3mw2cdr44fc2a"},
    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({ uri: "at://did:plc:z72i7hdynmk6r22z27h6tvur/app.bsky.feed.post/3mw2cdr44fc2a" });
const res = await fetch(`https://api.onekey.dev/v1/bluesky/reposted_by?${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 Bluesky response, recorded and returned in Onekey's shape. Fields the platform does not provide are `null`.

```json
{
  "success": true,
  "data": [
    {
      "author": {
        "id": "did:web:bsky38.com",
        "username": "bsky38.com",
        "displayName": "38 Influential Posters",
        "avatarUrl": "https://cdn.bsky.app/img/avatar/plain/did:web:bsky38.com/bafkreibtvmc5rhz3s4zbrxwdox2zfjst3u7w2enygx7hzanp3ryjg3j4m4"
      },
      "content": {
        "text": "Who are the most influential posters on Bluesky? Fill out your ballot, campaign for your favorites, and the top 38 with the most votes make the list.\n\nVote now: bsky38.com\n\nMade by @pds.dad & @dame.is, not by Bluesky."
      }
    },
    {
      "author": {
        "id": "did:plc:zlawfm5xgav7svrt6et4jeez",
        "username": "coty.bsky.social",
        "displayName": "Coty",
        "avatarUrl": "https://cdn.bsky.app/img/avatar/plain/did:plc:zlawfm5xgav7svrt6et4jeez/bafkreia5ywzky3osj7yxhb2mbxxm3ur2rwozkocvifxihls7zl6sd5f2zu"
      },
      "content": {
        "text": "Talk about technology, AI/ML, ethics, politics, language, etc. He/him."
      }
    }
  ],
  "metadata": {
    "platform": "bluesky",
    "endpoint": "reposted_by",
    "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 |
| --- | --- | --- |
| `did` | `author.id` | - |
| `handle` | `author.username` | - |
| `displayName` | `author.displayName` | - |
| `avatar` | `author.avatarUrl` | `safeUrl` |
| `description` | `content.text` | - |

## 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).