jpl.asteroids.approaches
Get upcoming and past asteroid close approaches to Earth — distance, velocity, size, sorted by date or distance (NASA JPL)
This record as markdown: /tools/io-github-whiteknightonhorse-apibase/jpl.asteroids.approaches.md
What jpl.asteroids.approaches does on Apibase
AI agents call jpl.asteroids.approaches to retrieve information from Apibase 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 |
|---|---|---|---|
sort | string | — | Sort field (default: date) |
h_max | number | — | Maximum absolute magnitude H (smaller H = larger object). Filter for brighter/bigger asteroids |
limit | integer | — | Maximum number of results (default 20, max 100) |
date_max | string | — | Maximum close-approach date in YYYY-MM-DD format (default: +60 days) |
date_min | string | — | Minimum close-approach date in YYYY-MM-DD format (default: now) |
dist_max | string | — | Maximum approach distance in AU (e.g. "0.05" = ~7.5M km). Default: 0.05 |
Parameters from the server's own tool schema.
Why jpl.asteroids.approaches is rated Low
Retrieves astronomical data with no side effects or ability to modify state.
From the tool's definition Get upcoming and past asteroid close approaches to Earth
Attacks that exploit this kind of access
The rule that runs jpl.asteroids.approaches safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Apibase, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For jpl.asteroids.approaches, this is the rule to start with:
jpl.asteroids.approaches 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 Apibase, apply this rule, and every jpl.asteroids.approaches call is checked against it from then on.
Questions about jpl.asteroids.approaches
Get upcoming and past asteroid close approaches to Earth — distance, velocity, size, sorted by date or distance (NASA JPL). It is categorised as a Read tool in the Apibase MCP Server, which means it retrieves data without modifying state.
jpl.asteroids.approaches accepts 6 parameters: sort, h_max, limit, date_max, date_min, dist_max. The full parameter table on this page comes from the server's own tool schema.
Register the Apibase MCP server in PolicyLayer and add a rule for jpl.asteroids.approaches: 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 Apibase. Nothing to install.
jpl.asteroids.approaches 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 jpl.asteroids.approaches 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 jpl.asteroids.approaches. 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.
jpl.asteroids.approaches is provided by the Apibase MCP server (apibase-mcp-client). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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