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Reddit Comments Search by Keyword
x402
Reddit Comments Search by Keyword is a paid API for AI agents from x402.apidirect.io, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-30).
Search for Reddit comments by keyword across all subreddits or within a specific subreddit, with optional AI sentiment analysis.
Price / call$0.004
Success—
StatusUnknown
How this service works
Search for Reddit comments by keyword across all subreddits, or in one subreddit.
Output
Returns an array of Reddit comments matching the query, each including the comment text, author, subreddit, score, timestamp, and permalink. If get_sentiment is enabled, each comment also includes a sentiment object with emotion scores (joy, trust, fear, surprise, sadness, disgust, anger, anticipation each 0-100), dominant_emotion, emotional_intensity (0-10), and polarity.
Example use cases
Brand sentiment monitoring on Reddit
“Search Reddit comments mentioning 'Notion AI' across all subreddits, sorted by most recent, and turn on sentiment analysis so I can see whether people are feeling positive or negative about it.”
Niche subreddit opinion research
“Find the top comments in r/personalfinance that mention 'index funds', sorted by relevance, and give me 2 pages of results.”
Competitor feedback analysis
“Search Reddit for comments mentioning 'Linear app' sorted by top, across 5 pages, and include emotion analysis so I can understand what's driving user sentiment.”
Technical details
Endpoint
GEThttps://x402.apidirect.io/v1/reddit/comments?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to search Reddit comment content by keyword, optionally scoped to a specific subreddit, with optional AI-powered emotion scoring. Prefer it over Reddit Posts Search when you specifically want comments rather than top-level posts. Ideal for brand monitoring, community sentiment research, or competitive analysis where user discussion depth matters.
Side effects
- Query string missing or empty — returns validation error
- Subreddit does not exist — returns empty results or 404-style error
- Pages parameter out of range (below 1 or above 10) — returns schema validation error
- Rate limit exceeded — returns 429 or payment-related error
- Reddit API downtime — upstream failure returns 502 or timeout
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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