Search Reddit subreddits by keywords using real-time external API. Searches subreddit names and descriptions to find communities. Use for: Discovering communities about topics, finding niche subreddits, exploring Reddit communities. Optional fields parameter for performance (default: ["id", "disp...
Risk signalsAccepts freeform code/query input (query)
Part of the Social Media Search API — Twitter, Instagram, Reddit, TikTok (XPOZ) server.
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AI agents call searchRedditSubreddits 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 searchRedditSubreddits 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": {
"searchRedditSubreddits": {}
}
}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 searchRedditSubreddits 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 Reddit subreddits by keywords using real-time external API. Searches subreddit names and descriptions to find communities. Use for: Discovering communities about topics, finding niche subreddits, exploring Reddit communities. Optional fields parameter for performance (default: ["id", "displayName", "title", "subscribersCount"]). Available fields: id, displayName, title, publicDescription, description, subscribersCount, activeUserCount, subredditType, over18, lang, url, subredditUrl, iconImg, bannerImg, headerImg, communityIcon, createdAt. Returns: array of matching subreddits (default 50, max 50) with id, name, description, subscriber count. 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 searchRedditSubreddits: 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.
searchRedditSubreddits 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 searchRedditSubreddits 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 searchRedditSubreddits. 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.
searchRedditSubreddits 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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