Endpoint Playground

Try the Metaculus category questions API

Returns Metaculus question rows for a category. Allowed category slugs: artificial-intelligence, computing-and-math, cryptocurrencies, economy-business, elections, environment-climate, geopolitics, health-pandemics, law, metaculus, natural-sciences, nuclear, politics, social-sciences, space, sports-entertainment, technology.

What a live request returned

14 Oct 2026: 20 questions; 18 fields had a value in every checked item and 6 varied between items.

Observed request: GET /metaculus/category/politics/questions?limit=20
Fields with a value in every checked item: id, question_id, title, question_title, slug, url, status, question_type

Sample value profiles: open_time: 2024-04-13 to 2026-10-12; comment_count: 1 to 20, median 3; url: metaculus.com.

Request: GET /metaculus/category/{slug}/questions
Cost: 2 credits/request
Auth: apiKey
Checks passed, 7 days to 14 Oct 2026: 100%, median 3.41 s
Monitored request: GET /metaculus/category/politics/questions

Metaculus category questions API documentation Metaculus platform page Pricing

Prefilled cURL

curl 'https://api.crawlora.net/api/v1/metaculus/category/artificial-intelligence/questions' \
  -H "x-api-key: $CRAWLORA_API_KEY"

Request parameters

Parameter	Type	Required	Prefilled value	Description
slug (path)	string	Yes	artificial-intelligence	Metaculus category slug
limit	integer	No		Rows to return, default 10, max 25

Example JSON response

{
  "code": 200,
  "msg": "OK",
  "data": {
    "limit": 1,
    "feed": "category",
    "source_url": "https://www.metaculus.com/questions/?categories=artificial-intelligence&for_main_feed=false",
    "fetched_at": "2026-06-07T14:00:00Z",
    "questions": [
      {
        "id": 43612,
        "title": "Example artificial intelligence question",
        "comment_count": 16,
        "public_page_derived": true
      }
    ]
  }
}

More Metaculus endpoints

Metaculus comments feed Metaculus project questions Metaculus question detail Metaculus question forecast history Metaculus question forecasts Metaculus question metadata Metaculus question options Metaculus questions Metaculus top comments feed Metaculus tournament questions

The sample response, schema and code snippets below work without an account. Sending a live request needs an API key.

Set up API key Endpoint docs

Endpoint

Choose one catalog endpoint for this request.

1 shown

Group

Method

Auth

Endpoint

GETapiKey2 credits/requestmetaculus.questionsResponseDocMetaculus

GET /metaculus/category/{slug}/questions

Metaculus category questions

Response behavior

- `data.feed` is `category`. - `data.source_url` uses `/questions/?categories={slug}&for_main_feed=false`. - Unsupported category slugs return invalid-parameter errors before upstream IO. - Upstream authentication, challenge, or parser drift is returned as a typed upstream error.

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API key

API key required for live requests. Your key is only used to send requests from this Playground.

not configured

Active Playground key: not configured

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Path parameters

slug

requiredstring

Metaculus category slug · allowed: artificial-intelligence, computing-and-math, cryptocurrencies, economy-business, elections, environment-climate, geopolitics, health-pandemics, law, metaculus, natural-sciences, nuclear, politics, social-sciences, space, sports-entertainment, technology

Add an API key to send a live request.

If an active API key is configured, Copy cURL includes it. Share links never include API keys.

View docs

Sample responseGET

Shown before your first request. Add an API key and send a request to see the live response, status, latency, and headers.

{
  "code": 200,
  "msg": "OK",
  "data": {
    "limit": 1,
    "feed": "category",
    "source_url": "https://www.metaculus.com/questions/?categories=artificial-intelligence&for_main_feed=false",
    "fetched_at": "2026-06-07T14:00:00Z",
    "questions": [
      {
        "id": 43612,
        "title": "Example artificial intelligence question",
        "comment_count": 16,
        "public_page_derived": true
      }
    ]
  }
}

Endpoint Playground

Try the Metaculus category questions API

What a live request returned

14 Oct 2026: 20 questions; 18 fields had a value in every checked item and 6 varied between items.

Observed request: GET /metaculus/category/politics/questions?limit=20
Fields with a value in every checked item: id, question_id, title, question_title, slug, url, status, question_type

Sample value profiles: open_time: 2024-04-13 to 2026-10-12; comment_count: 1 to 20, median 3; url: metaculus.com.

Request: GET /metaculus/category/{slug}/questions
Cost: 2 credits/request
Auth: apiKey
Checks passed, 7 days to 14 Oct 2026: 100%, median 3.41 s
Monitored request: GET /metaculus/category/politics/questions

Metaculus category questions API documentation Metaculus platform page Pricing

Prefilled cURL

curl 'https://api.crawlora.net/api/v1/metaculus/category/artificial-intelligence/questions' \
  -H "x-api-key: $CRAWLORA_API_KEY"

Request parameters

Parameter	Type	Required	Prefilled value	Description
slug (path)	string	Yes	artificial-intelligence	Metaculus category slug
limit	integer	No		Rows to return, default 10, max 25

Example JSON response

{
  "code": 200,
  "msg": "OK",
  "data": {
    "limit": 1,
    "feed": "category",
    "source_url": "https://www.metaculus.com/questions/?categories=artificial-intelligence&for_main_feed=false",
    "fetched_at": "2026-06-07T14:00:00Z",
    "questions": [
      {
        "id": 43612,
        "title": "Example artificial intelligence question",
        "comment_count": 16,
        "public_page_derived": true
      }
    ]
  }
}

More Metaculus endpoints

The sample response, schema and code snippets below work without an account. Sending a live request needs an API key.

Set up API key Endpoint docs

Endpoint

Choose one catalog endpoint for this request.

1 shown

Group

Method

Auth

Endpoint

GETapiKey2 credits/requestmetaculus.questionsResponseDocMetaculus

GET /metaculus/category/{slug}/questions

Metaculus category questions

Response behavior

API key required. Paste a full key or rotate one from the API Keys page.

Set up API key

View docs

API key

API key required for live requests. Your key is only used to send requests from this Playground.

not configured

Active Playground key: not configured

Manage API keys in Console

Path parameters

slug

requiredstring

Add an API key to send a live request.

If an active API key is configured, Copy cURL includes it. Share links never include API keys.

View docs

Sample responseGET

Shown before your first request. Add an API key and send a request to see the live response, status, latency, and headers.

{
  "code": 200,
  "msg": "OK",
  "data": {
    "limit": 1,
    "feed": "category",
    "source_url": "https://www.metaculus.com/questions/?categories=artificial-intelligence&for_main_feed=false",
    "fetched_at": "2026-06-07T14:00:00Z",
    "questions": [
      {
        "id": 43612,
        "title": "Example artificial intelligence question",
        "comment_count": 16,
        "public_page_derived": true
      }
    ]
  }
}