The HailPing MCP server

The tools

Each tool answers a different shape of question. The four search tools are public; the address check answers for the person signed in to HailPing. The example prompts below exercise one tool apiece, which also makes them a quick way to check your connection works.

1. Find hail storms

   find_hail_storms

   Lists published storm reports, newest first, filtered by state, city, date range and minimum hail size. Each result carries the date, the largest reported hailstone, the report count and the report page URL.

   Try “Which hail storms hit Texas in July 2026?”

2. Get hail storm report

   get_hail_storm_report

   Returns one storm report in full: summary, storm path, timing, largest hail, report counts, hail size distribution, affected cities and counties, and the report page URL.

   Try “Tell me about the Dimmitt, Texas hail report from July 4, 2026.”

3. Find hail near a location

   find_hail_near_location

   Finds storm reports whose published footprint falls within a radius of a point, nearest first, over a recent window of days. Takes latitude and longitude, or a city and state.

   Try “Did it hail within 50 miles of Plano, Texas in the last 60 days?”

4. Get hail market profile

   get_hail_market

   Returns the hail market page for a city: the last significant hail date, the largest recent hail, the hail frequency band, the event count, and the history of qualifying events with their report URLs.

   Try “When did it last hail in Abilene, Texas?”

5. Check hail at an address

   check_address_hail Sign-in

   For one US street address or point: the days since October 2020 that radar-estimated hail reached it and how large, other days with ground reports within 5 miles, and a link to Address Lookup. It answers for the person signed in to HailPing; a free account works, and each new address counts toward that account’s Address Lookup allowance.

   Try “Has hail hit the Kansas State Capitol in Topeka since 2020?”

Adding HailPing to your assistant

All four clients below use the same URL. Menu names move around as these products change, so treat the steps as a description of where to look rather than an exact path.

ChatGPT

Open the HailPing plugin in ChatGPT and choose Install plugin, or search for HailPing under Plugins. The search tools work straight away; the first address question asks you to sign in to HailPing. To add the endpoint by hand instead, use developer mode, paste the server URL and choose OAuth. Open HailPing in ChatGPT

Claude

Settings, then Connectors, then Add custom connector. Name it HailPing and paste the server URL. The search tools work straight away; the first address question opens HailPing’s sign-in.

Perplexity

Available to Pro, Max and Enterprise accounts. Add a custom remote connector and paste the server URL. With no authentication the search tools work; the address check needs OAuth sign-in.

Gemini

Add the server URL as a custom MCP server under Connected Apps, where your account has that option. The search tools need no sign-in; the address check needs OAuth.

What the data is, and what it is not

HailPing Pro, with new storms in full on the day they publish, lives in the HailPing app. The MCP server serves the free public data only, and the same data to everyone.

Rate limit

Requests are limited to 120 per minute per IP address, the same budget guest storm reads get. Over that, the server answers 429 and the assistant should retry in a moment. If you have a use that needs more, get in touch before you build against it.

Logging

MCP requests are logged so the rate limit can be enforced and abuse spotted. The caller's IP address is used only in a one-way form and is not kept in these logs. A request from an assistant connected to a HailPing account also records that account. The Privacy Policy covers this too.

Support

Questions, a tool that misbehaves, or a result that looks wrong: email help@hailping.com. Corrections to a specific storm report are welcome and are the fastest way to fix an answer an assistant is giving.