mastodon.timeline_tag
stable Advanced
Public posts for a hashtag.
GET /v1/mastodon/timeline_tag
What you get#
A list of Mastodon 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 |
|---|---|---|---|---|---|
instance | string | no | - | Known Mastodon instance (allowlisted), default mastodon.social | max 253 chars; must match [a-z0-9.-]{3,253}; trimmed, lowercased |
tag | string | yes | (required) | Hashtag without #, e.g. python | max 100 chars; must match [A-Za-z0-9_]{1,100}; trimmed, lowercased |
Request#
curl "https://api.onekey.dev/v1/mastodon/timeline_tag?tag=python" \
-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 Mastodon response, recorded and returned in Onekey's shape. Fields the platform does not provide are null.
{
"success": true,
"data": [
{
"content": {
"id": "117350344281766094",
"url": "https://www.urbanmind.net/display/f7dd981d-cec99446-d49183579dfadbe9",
"text": "I originally thought customer memory was a storage problem. It turned out to be a retrieval and trust problem. When I built FUEGO, a customer relationship memory agent, I wanted one simple behaviour: before a customer meeting, the system should remember what happened before without forcing someone to reconstruct the relationship from scattered meetings, tickets, and notes. The key design decision was separating structured customer records from long-term semantic memory. SQLite remains the source of truth for customers, meetings, and support tickets. Hindsight handles the historical context that needs to be retrieved when a question is asked. Groq then turns that context into a useful response. That separation made the rest of the system much easier to reason about. The architecture: FUEGO uses a Next.js frontend and a Python/FastAPI backend. The frontend lets a user select a customer, add meetings and support tickets, prepare for a meeting, inspect commitments and solutions, and ask questions. The backend connects SQLite, Hindsight, and Groq. SQLite stores concrete records. Hindsight provides long-term customer context. Groq uses the retrieved context to generate the final response. I wanted those responsibilities to stay separate. A database row is not the same thing as a memory, and a retrieved memory is not automatically a fact that should overwrite a structured record. Why ordinary customer history",
"createdAt": "2026-09-28T19:06:23Z",
"language": "en"
},
"author": {
"id": "115061140460610278",
"username": "hackaday",
"displayName": "Hack a Day (unofficial)",
"url": "https://www.urbanmind.net/profile/hackaday",
"avatarUrl": "https://files.mastodon.social/cache/accounts/avatars/115/061/140/460/610/278/original/b7c7093473e2d110.png"
},
"engagement": {
"likes": 0,
"comments": 0,
"shares": 3
}
},
{
"content": {
"id": "117350295913913001",
"url": "https://mastodon.social/@teeeeeeeee/117350295913913001",
"text": "Boosted Configuration (_neural_) Networks for classification https:// thierrymoudiki.github.io/blog/ 2022/07/21/r/misc/boosted-configuration-networks # Python # DataScience # MachineLearning # rstats # Techtonique",
"createdAt": "2026-09-28T19:23:31Z",
"language": "en"
},
"author": {
"id": "116862964066274332",
"username": "teeeeeeeee",
"displayName": "T@Techtonique",
"url": "https://mastodon.social/@teeeeeeeee",
"avatarUrl": "https://files.mastodon.social/accounts/avatars/116/862/964/066/274/332/original/7b6c651c404d5235.png"
},
"engagement": {
"likes": 0,
"comments": 0,
"shares": 2
}
}
],
"metadata": {
"platform": "mastodon",
"endpoint": "timeline_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. Fields the source lacks come back as null.
| Source path | Onekey field | Transform |
|---|---|---|
id | content.id | - |
url | content.url | safeUrl |
content | content.text | stripHtml |
created_at | content.createdAt | toIsoDate |
language | content.language | - |
account.id | author.id | - |
account.username | author.username | - |
account.display_name | author.displayName | - |
account.url | author.url | safeUrl |
account.avatar | author.avatarUrl | safeUrl |
favourites_count | engagement.likes | toNumber |
replies_count | engagement.comments | toNumber |
reblogs_count | engagement.shares | toNumber |
Caching and freshness#
- Fresh for about 30 seconds. Repeat calls in that window are served from cache and are free.
- Between 30 seconds and 5 minutes the cached copy is still served instantly and marked
stale: truewhile 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).