Search for SUBREDDITS where Reddit posts match keywords. Returns unique, deduplicated subreddit profiles. FAST (default, omit responseType or responseType="fast"): Returns up to 300 results directly (use limit param to reduce). Auto API fallback for fresh data. PAGING (responseType="paging"): Asy...
Risk signalsAccepts freeform code/query input (query) · High parameter count (13 properties)
Part of the Social Media Search API — Twitter, Instagram, Reddit, TikTok (XPOZ) server.
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AI agents call getRedditSubredditsByKeywords to retrieve information from Social Media Search API — Twitter, Instagram, Reddit, TikTok (XPOZ) without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though getRedditSubredditsByKeywords only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"getRedditSubredditsByKeywords": {}
}
}See the full Social Media Search API — Twitter, Instagram, Reddit, TikTok (XPOZ) policy for all 48 tools.
These attack patterns abuse exactly the kind of access getRedditSubredditsByKeywords gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Search for SUBREDDITS where Reddit posts match keywords. Returns unique, deduplicated subreddit profiles. FAST (default, omit responseType or responseType="fast"): Returns up to 300 results directly (use limit param to reduce). Auto API fallback for fresh data. PAGING (responseType="paging"): Async paginated results (100 per page), returns operationId for polling via checkOperationStatus. Supports pageNumber/tableName for subsequent pages. QUERY SYNTAX: Plain keywords (bitcoin, climate change), quoted phrases ("deep learning"), boolean expressions (AI AND crypto, bitcoin OR ethereum, politics NOT sports), or parenthesized groups ((startup OR entrepreneur) NOT "venture capital"). AND/OR/NOT must have a term on both sides. @handles like @karpathy are supported. Field operators (from:, lang:) are stripped. Forward slashes are treated as spaces (24/7 becomes 24 7). FILTERS: - startDate/endDate: Filter by post date (YYYY-MM-DD format). OMIT by default, only use if user explicitly requests date range. IMPORTANT!!!!!: THE CURRENT YEAR IS 2026. When user requests relative dates (last week, last month), verify the current date from your system context and double-check the calculated dates - models often get the year wrong, searching one year earlier than intended. Optional fields parameter for performance (default: ["id", "displayName", "title", "subscribersCount"]). Available fields: id, displayName, title, publicDescription, description, subscribersCount, activeUserCount, and more. AGGREGATE FIELDS (from matching posts) - MUST BE EXPLICITLY REQUESTED IN FIELDS: aggRelevance (relevance score for sorting), relevantPostsCount (count of matching posts per subreddit), relevantPostsUpvotesSum, relevantPostsCommentsCountSum. This is a safe, read-only tool for analyzing searchable information.. It is categorised as a Read tool in the Social Media Search API — Twitter, Instagram, Reddit, TikTok (XPOZ) MCP Server, which means it retrieves data without modifying state.
Register the Social Media Search API — Twitter, Instagram, Reddit, TikTok (XPOZ) MCP server in PolicyLayer and add a rule for getRedditSubredditsByKeywords: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Social Media Search API — Twitter, Instagram, Reddit, TikTok (XPOZ). Nothing to install.
getRedditSubredditsByKeywords is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the getRedditSubredditsByKeywords rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for getRedditSubredditsByKeywords. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
getRedditSubredditsByKeywords is provided by the Social Media Search API — Twitter, Instagram, Reddit, TikTok (XPOZ) MCP server (https://mcp.xpoz.ai/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 48 Social Media Search API — Twitter, Instagram, Reddit, TikTok (XPOZ) tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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