Overview
The Travel Advisories API is a read-only static API served from Firebase Hosting. It is free to use and returns JSON.
Base path: https://gis.rhobrowser.com/api/v1
Core Endpoints
| Endpoint | Description |
|---|---|
| https://gis.rhobrowser.com/api/v1 | API metadata shortcut |
| https://gis.rhobrowser.com/api/v1/meta | Version, counts, generated timestamp, endpoint index |
| https://gis.rhobrowser.com/api/v1/advisories | Full advisory dataset |
| https://gis.rhobrowser.com/api/v1/openapi | OpenAPI spec JSON |
| https://gis.rhobrowser.com/api/v1/countries | Country slug index for single-country fetches |
| https://gis.rhobrowser.com/api/v1/states | State slug index for single-state fetches (U.S. + Mexico states) |
| https://gis.rhobrowser.com/api/v1/highways | Highway slug index for single-highway fetches (U.S. + Mexico Federal) |
Segmented Endpoints
Levels
https://gis.rhobrowser.com/api/v1/levels/1
https://gis.rhobrowser.com/api/v1/levels/2
Indexes
https://gis.rhobrowser.com/api/v1/regions for region file list
https://gis.rhobrowser.com/api/v1/types for type file list
https://gis.rhobrowser.com/api/v1/countries for country slug list
https://gis.rhobrowser.com/api/v1/states for state slug list
https://gis.rhobrowser.com/api/v1/highways for highway slug list
Mexico Coverage Model
Mexico is exposed in two ways:
- State advisories: `stateSystem = \"Mexico\"` inside /api/v1/states
- Federal highway advisories: `highwaySystem = \"Mexico Federal\"` inside /api/v1/highways
Mexico state records may include:
- `highwayNotes` (high-risk routes crossing that state)
- `travelerNotes` (state-specific precautions)
Response Shape
{
"version": "v1",
"generatedAt": "2026-02-11T...Z",
"count": 436,
"data": [
{
"destination": "Canada",
"region": "Americas",
"advice": "Exercise normal safety precautions",
"advisoryLevel": 1,
"advisoryLevelLabel": "Level 1: Exercise Normal Precautions",
"updated": "09 Feb 2026",
"reason": "..."
}
]
}
Usage Examples
1) Fetch all advisories (JavaScript):
const res = await fetch('https://gis.rhobrowser.com/api/v1/advisories');\nconst json = await res.json();\nconsole.log(json.count, json.data[0]);
2) Fetch U.S. states only (includes ICE-related fields):
const usRes = await fetch('https://gis.rhobrowser.com/api/v1/types/us-states.json');\nconst us = await usRes.json();\nconst texas = us.data.find(x => x.destination === 'Texas');\nconsole.log(texas.advice, texas.iceWarning, texas.reason);
3) Fetch U.S. highway advisories:
curl https://gis.rhobrowser.com/api/v1/types/us-highways.json
4) Fetch Mexico federal highway advisories:
curl https://gis.rhobrowser.com/api/v1/types/mexico-highways.json
5) Get only U.S. Level 3/4 state rows in JS:
const usRes = await fetch('https://gis.rhobrowser.com/api/v1/types/us-states.json');\nconst us = await usRes.json();\nconst highRisk = us.data.filter(s => [3, 4].includes(s.advisoryLevel));\nconsole.log(highRisk.map(s => ({ destination: s.destination, level: s.advisoryLevel })));\n
6) Fetch one specific country:
const idxRes = await fetch('https://gis.rhobrowser.com/api/v1/countries');\nconst idx = await idxRes.json();\nconst canada = idx.countries.find(c => c.destination === 'Canada');\nconst countryRes = await fetch(canada.endpointUrl);\nconst country = await countryRes.json();\nconsole.log(country.data.destination, country.data.advice);
7) Fetch one specific state:
const idxRes = await fetch('https://gis.rhobrowser.com/api/v1/states');\nconst idx = await idxRes.json();\nconst texas = idx.states.find(s => s.destination === 'Texas');\nconst stateRes = await fetch(texas.endpointUrl);\nconst state = await stateRes.json();\nconsole.log(state.data.destination, state.data.iceWarning);
8) Fetch one specific highway (works for U.S. and Mexico Federal):
const hIdxRes = await fetch('https://gis.rhobrowser.com/api/v1/highways');\nconst hIdx = await hIdxRes.json();\nconst target = hIdx.highways.find(h => h.destination === 'Federal Highway 85D');\nconst highwayRes = await fetch(target.endpointUrl);\nconst highway = await highwayRes.json();\nconsole.log(highway.data.destination, highway.data.highwaySystem, highway.data.advice);\n
9) Mexico-only examples:
// Mexico state by name\nconst statesIdx = await (await fetch('https://gis.rhobrowser.com/api/v1/states')).json();\nconst jaliscoRef = statesIdx.states.find(s => s.destination === 'Jalisco (Mexico)' && s.stateSystem === 'Mexico');\nconst jalisco = await (await fetch(jaliscoRef.endpointUrl)).json();\n\n// Mexico federal highway by name\nconst highwaysIdx = await (await fetch('https://gis.rhobrowser.com/api/v1/highways')).json();\nconst mx101Ref = highwaysIdx.highways.find(h => h.destination === 'Federal Highway 101' && h.highwaySystem === 'Mexico Federal');\nconst mx101 = await (await fetch(mx101Ref.endpointUrl)).json();\n\nconsole.log(jalisco.data.highwayNotes);\nconsole.log(mx101.data.reason);
U.S. and Highway Object Examples
U.S. state advisory object sample:
{\n \"destination\": \"Texas\",\n \"region\": \"United States\",\n \"advice\": \"Reconsider your need to travel\",\n \"advisoryLevel\": 3,\n \"advisoryLevelLabel\": \"Level 3: Reconsider Travel\",\n \"updated\": \"Feb 2026\",\n \"reason\": \"Diverse risks (hurricanes/floods/tornadoes)...\",\n \"iceWarning\": \"ICE enforcement level: Very High...\",\n \"isUsState\": true\n}
U.S. highway advisory object sample:
{\n \"destination\": \"I-95 (East Coast Interstate)\",\n \"region\": \"United States\",\n \"advice\": \"Reconsider your need to travel\",\n \"advisoryLevel\": 3,\n \"reason\": \"Extreme traffic volume... Highest total fatalities...\",\n \"travelerNotes\": \"Avoid rush hours; use toll lanes if available...\",\n \"isUsHighway\": true\n}
Mexico federal highway advisory object sample:
{\n \"destination\": \"Federal Highway 101\",\n \"region\": \"Americas\",\n \"advice\": \"Do not travel\",\n \"advisoryLevel\": 4,\n \"reason\": \"Known as 'Highway of Death'...\",\n \"isMexicoHighway\": true\n}
Operational Notes
This API is static and read-only. Filtering by query string is not supported server-side.
When source data changes, rebuild API JSON using node scripts/build-api-v1.cjs and redeploy hosting.