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Metaculus API endpoint

Metaculus comments feed API

Returns Metaculus question rows for the questions referenced by the most recent public comments, in comment recency order. Comment bodies are not exposed.

GETapiKey2 credits/requestMetaculusmetaculus.questionsResponseDoc/metaculus/comments-feed

Endpoint facts

Method: GET
API path: /metaculus/comments-feed
Auth: apiKey
Credits: 2 credits/request
Charged on: Successful 2xx responses only
Platform: Metaculus
Response schema: #/definitions/metaculus.questionsResponseDoc

Metaculus Scraper API Try Metaculus comments feed API in Playground Metaculus API documentation

How this endpoint behaves

Returns Metaculus question rows for the questions referenced by the most recent public comments, in comment recency order. This endpoint does not expose raw comment bodies.

Query parameters:

limit: rows to return. Defaults to 10; maximum 25.
topic: optional Metaculus topic slug, for example technology-ai. Accepted for compatibility; the comments-derived feed is not filtered by topic.

Notable response behavior:

data.feed is comments_feed.
data.questions contains the questions referenced by the most recent public comments, ordered by most recent comment first.
Upstream authentication, challenge, or parser drift is returned as a typed upstream error.

Live monitoring

Monitored request: GET /metaculus/comments-feed
Checks passed, 7 days to 14 Oct 2026: 100%
Median response time: 6.05 s

Current status of every endpoint

Sampled response

Request, 14 Oct 2026: GET /metaculus/comments-feed?limit=20
Items in questions: 20
Fields filled in every checked item: 11
Fields empty in some or all items: 11

Field	Filled in, of 20 checked	Values in the sample
id	20
title	20	median 124 characters
slug	20
url	20	metaculus.com
status	20
comment_count	20	1 to 34, median 16
forecaster_count	19	3 to 124, median 31
forecasts_count	19	5 to 1,753, median 218
open_time	20	2025-07-21 to 2026-10-06
scheduled_close_time	19	2026-10-21 to 2036-01-01
scheduled_resolve_time	19	2026-10-30 to 2040-12-31
published_at	20	2025-07-20 to 2026-10-05
edited_at	20	2026-10-13
categories	13	median 1 entry
projects	20	median 1 entry
public_page_derived	20
question_id	7
question_title	7	median 148 characters
question_type	7
latest_forecast_center	7	0.1 to 0.55, median 0.25
latest_forecast_lower	7	0.08 to 0.45, median 0.25
latest_forecast_upper	7	0.15 to 0.66, median 0.45

Request parameters

Parameter	Type	Required	Description
limit	integer	No	Rows to return, default 10, max 25
topic	string	No	Optional Metaculus topic slug
x-api-key (header)	string	Yes	API key required

cURL example

curl -X GET "https://api.crawlora.net/api/v1/metaculus/comments-feed?limit=10" \
  -H "x-api-key: $CRAWLORA_API_KEY"

Example JSON response

{
  "code": 200,
  "msg": "OK",
  "data": {
    "limit": 1,
    "feed": "comments_feed",
    "source_url": "https://www.metaculus.com/questions/?comments_feed=true",
    "fetched_at": "2026-06-07T14:00:00Z",
    "questions": [
      {
        "id": 43612,
        "title": "Tampa sulphur price in June 2026?",
        "comment_count": 16,
        "public_page_derived": true
      }
    ]
  }
}

Request schema

No body schema

Response schema

#/definitions/metaculus.questionsResponseDoc

Field	Type	Required	Example	Description
code	integer	No	200
data	metaculus.QuestionsResponse	No
data.feed	string	No	questions	Feed the questions came from, for example `questions`.
data.fetched_at	string	No	2026-06-07T14:00:00Z	Time the data was fetched, in UTC (RFC 3339).
data.limit	integer	No	10	Maximum number of questions requested.
data.questions	array	No		Questions in the feed, one item per question. QuestionRow record, 34 fields: categories, comment_count, edited_at, forecaster_count, forecasts_count, id, latest_forecast_center, latest_forecast_lower, latest_forecast_upper, open_time, projects, public_page_derived and 12 more. Described under Metaculus top comments feed API.
data.source_url	string	No	https://www.metaculus.com/questions/	URL the data was read from.
msg	string	No	OK

Failure responses

Status	Description	Schema
400	Bad Request	#/definitions/app.Response
404	Not Found	#/definitions/app.Response
429	Too Many Requests	#/definitions/app.Response
500	Internal Server Error	#/definitions/app.Response
503	Service Unavailable	#/definitions/app.Response

Code examples

Use environment variables for secrets and keep Crawlora API keys server-side.

curl -X GET "https://api.crawlora.net/api/v1/metaculus/comments-feed?limit=10" \
  -H "x-api-key: $CRAWLORA_API_KEY"

Shared guides

Authentication Errors and retries Rate limits and credits Pricing Acceptable use

More Metaculus endpoint docs Metaculus Scraper API Metaculus category questions API documentation Metaculus project questions API documentation Metaculus question detail API documentation Metaculus question forecast history API documentation Metaculus question forecasts API documentation Metaculus question metadata API documentation

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Docs menu

Metaculus API endpoint

Metaculus comments feed API

Returns Metaculus question rows for the questions referenced by the most recent public comments, in comment recency order. Comment bodies are not exposed.

GETapiKey2 credits/requestMetaculusmetaculus.questionsResponseDoc/metaculus/comments-feed

Endpoint facts

Method: GET
API path: /metaculus/comments-feed
Auth: apiKey
Credits: 2 credits/request
Charged on: Successful 2xx responses only
Platform: Metaculus
Response schema: #/definitions/metaculus.questionsResponseDoc

Metaculus Scraper API Try Metaculus comments feed API in Playground Metaculus API documentation

How this endpoint behaves

Returns Metaculus question rows for the questions referenced by the most recent public comments, in comment recency order. This endpoint does not expose raw comment bodies.

Query parameters:

limit: rows to return. Defaults to 10; maximum 25.
topic: optional Metaculus topic slug, for example technology-ai. Accepted for compatibility; the comments-derived feed is not filtered by topic.

Notable response behavior:

data.feed is comments_feed.
data.questions contains the questions referenced by the most recent public comments, ordered by most recent comment first.
Upstream authentication, challenge, or parser drift is returned as a typed upstream error.

Live monitoring

Monitored request: GET /metaculus/comments-feed
Checks passed, 7 days to 14 Oct 2026: 100%
Median response time: 6.05 s

Current status of every endpoint

Sampled response

Request, 14 Oct 2026: GET /metaculus/comments-feed?limit=20
Items in questions: 20
Fields filled in every checked item: 11
Fields empty in some or all items: 11

Field	Filled in, of 20 checked	Values in the sample
id	20
title	20	median 124 characters
slug	20
url	20	metaculus.com
status	20
comment_count	20	1 to 34, median 16
forecaster_count	19	3 to 124, median 31
forecasts_count	19	5 to 1,753, median 218
open_time	20	2025-07-21 to 2026-10-06
scheduled_close_time	19	2026-10-21 to 2036-01-01
scheduled_resolve_time	19	2026-10-30 to 2040-12-31
published_at	20	2025-07-20 to 2026-10-05
edited_at	20	2026-10-13
categories	13	median 1 entry
projects	20	median 1 entry
public_page_derived	20
question_id	7
question_title	7	median 148 characters
question_type	7
latest_forecast_center	7	0.1 to 0.55, median 0.25
latest_forecast_lower	7	0.08 to 0.45, median 0.25
latest_forecast_upper	7	0.15 to 0.66, median 0.45

Request parameters

Parameter	Type	Required	Description
limit	integer	No	Rows to return, default 10, max 25
topic	string	No	Optional Metaculus topic slug
x-api-key (header)	string	Yes	API key required

cURL example

curl -X GET "https://api.crawlora.net/api/v1/metaculus/comments-feed?limit=10" \
  -H "x-api-key: $CRAWLORA_API_KEY"

Example JSON response

{
  "code": 200,
  "msg": "OK",
  "data": {
    "limit": 1,
    "feed": "comments_feed",
    "source_url": "https://www.metaculus.com/questions/?comments_feed=true",
    "fetched_at": "2026-06-07T14:00:00Z",
    "questions": [
      {
        "id": 43612,
        "title": "Tampa sulphur price in June 2026?",
        "comment_count": 16,
        "public_page_derived": true
      }
    ]
  }
}

Request schema

No body schema

Response schema

#/definitions/metaculus.questionsResponseDoc

Field	Type	Required	Example	Description
code	integer	No	200
data	metaculus.QuestionsResponse	No
data.feed	string	No	questions	Feed the questions came from, for example `questions`.
data.fetched_at	string	No	2026-06-07T14:00:00Z	Time the data was fetched, in UTC (RFC 3339).
data.limit	integer	No	10	Maximum number of questions requested.
data.questions	array	No		Questions in the feed, one item per question. QuestionRow record, 34 fields: categories, comment_count, edited_at, forecaster_count, forecasts_count, id, latest_forecast_center, latest_forecast_lower, latest_forecast_upper, open_time, projects, public_page_derived and 12 more. Described under Metaculus top comments feed API.
data.source_url	string	No	https://www.metaculus.com/questions/	URL the data was read from.
msg	string	No	OK

Failure responses

Status	Description	Schema
400	Bad Request	#/definitions/app.Response
404	Not Found	#/definitions/app.Response
429	Too Many Requests	#/definitions/app.Response
500	Internal Server Error	#/definitions/app.Response
503	Service Unavailable	#/definitions/app.Response

Code examples

Use environment variables for secrets and keep Crawlora API keys server-side.

curl -X GET "https://api.crawlora.net/api/v1/metaculus/comments-feed?limit=10" \
  -H "x-api-key: $CRAWLORA_API_KEY"

Shared guides

Authentication Errors and retries Rate limits and credits Pricing Acceptable use

Open in Playground Back to group

Metaculus comments feed API

Endpoint facts

How this endpoint behaves

Live monitoring

Sampled response

Request parameters

cURL example

Example JSON response

Failure responses

Code examples

Shared guides

Related

Metaculus comments feed API

Endpoint facts

How this endpoint behaves

Live monitoring

Sampled response

Request parameters

cURL example

Example JSON response

Failure responses

Code examples

Shared guides

Related