feed_discover
Find a website's RSS/Atom/JSON feeds and read the latest items: parses <link rel="alternate"> tags, likely feed links and (if none) probes common feed paths, then parses the feed (RSS 2.0, RSS 1.0/RDF, Atom 1.0, JSON Feed) into clean JSON items with title, link, published date (ISO), author, summ...
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What feed_discover does on ScorpTech x402 API
AI agents call feed_discover to retrieve information from ScorpTech x402 API without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
url | string | Yes | Site URL or feed URL (http/https, public hosts only) |
items | integer | — | Latest items to return 0-50 (default 10; 0 = discovery only) |
probe | boolean | — | Probe common feed paths when the page declares none (default true) |
Parameters from the server's own tool schema.
Why feed_discover is rated Low
Even though feed_discover only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Risk signalsAccepts URL/endpoint input (url)
Attacks that exploit this kind of access
The rule that runs feed_discover safely
PolicyLayer is an MCP gateway: it sits between your AI agents and ScorpTech x402 API, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For feed_discover, this is the rule to start with:
feed_discover is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect ScorpTech x402 API, apply this rule, and every feed_discover call is checked against it from then on.
Questions about feed_discover
Find a website's RSS/Atom/JSON feeds and read the latest items: parses <link rel="alternate"> tags, likely feed links and (if none) probes common feed paths, then parses the feed (RSS 2.0, RSS 1.0/RDF, Atom 1.0, JSON Feed) into clean JSON items with title, link, published date (ISO), author, summary, categories and enclosure. Also accepts a feed URL directly. SSRF-safe fetches. Price: $0.005 USDC per successful call (x402, Solana). Same tool over HTTPS: GET https://scorptech.it.com/api/x402/v1/feed-discover. It is categorised as a Read tool in the ScorpTech x402 API MCP Server, which means it retrieves data without modifying state.
feed_discover accepts 3 parameters: url, items, probe. Required: url. The full parameter table on this page comes from the server's own tool schema.
Register the ScorpTech x402 API MCP server in PolicyLayer and add a rule for feed_discover: 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 ScorpTech x402 API. Nothing to install.
feed_discover 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 feed_discover 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 feed_discover. 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.
feed_discover is provided by the ScorpTech x402 API MCP server (https://scorptech.it.com/api/x402/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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