7e93fb65a3
- Fix header format: use KEY=value not KEY: value - Update weather examples to use US locations (verified working) - Remove comparison table per review feedback - Clarify regional restrictions in notes Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
142 lines
3.6 KiB
Markdown
142 lines
3.6 KiB
Markdown
---
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name: grounding-lite
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description: Google Maps Grounding Lite MCP for AI-powered location search, weather, and routes via mcporter.
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homepage: https://developers.google.com/maps/ai/grounding-lite
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metadata: {"clawdbot":{"emoji":"🗺️","requires":{"bins":["mcporter"],"env":["GOOGLE_MAPS_API_KEY"]},"primaryEnv":"GOOGLE_MAPS_API_KEY"}}
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---
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# Grounding Lite
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Google Maps Grounding Lite provides AI-grounded location data via MCP. Use `mcporter` to call tools directly.
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**Status**: Experimental (pre-GA), free during preview.
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**Rate limits**: search_places (100 QPM, 1K QPD), lookup_weather (300 QPM), compute_routes (300 QPM).
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## Setup
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1. Install mcporter: `npm install -g mcporter`
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2. Set `GOOGLE_MAPS_API_KEY` environment variable
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3. Configure the MCP server (one-time):
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```bash
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mcporter config add grounding-lite \
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--url https://mapstools.googleapis.com/mcp \
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--header "X-Goog-Api-Key=$GOOGLE_MAPS_API_KEY"
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```
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### API Key Security
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1. **Restrict your API key** in Google Cloud Console:
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- API restrictions: Allow only `mapstools.googleapis.com`
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- Application restrictions: Use IP restriction if on a fixed server
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2. **Never hardcode keys** - use environment variables
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3. **For production**: Consider OAuth 2.0 (better audit trails)
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See: https://developers.google.com/maps/api-security-best-practices
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## Search Places
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Find places by text query with AI summaries:
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```bash
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mcporter call grounding-lite.search_places text_query="coffee shops near Central Park"
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```
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With location bias:
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```bash
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mcporter call grounding-lite.search_places \
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text_query="pizza" \
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location_bias='{"center":{"latitude":40.7829,"longitude":-73.9654},"radius":2000}'
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```
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JSON output:
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```bash
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mcporter call grounding-lite.search_places text_query="sushi in Tokyo" --output json
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```
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Response includes: place IDs, names, addresses, coordinates, Google Maps links, and AI summary.
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## Lookup Weather
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Get current weather:
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```bash
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mcporter call grounding-lite.lookup_weather location='{"address":"San Francisco, CA"}' units_system=IMPERIAL
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```
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By coordinates:
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```bash
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mcporter call grounding-lite.lookup_weather \
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location='{"lat_lng":{"latitude":35.6762,"longitude":139.6503}}'
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```
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By place ID:
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```bash
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mcporter call grounding-lite.lookup_weather location='{"place_id":"ChIJ..."}'
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```
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Forecast for a specific date/hour:
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```bash
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mcporter call grounding-lite.lookup_weather \
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location='{"address":"New York, NY"}' \
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date='{"year":2026,"month":1,"day":28}' \
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hour=14
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```
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Units: `METRIC` (Celsius, km/h) or `IMPERIAL` (Fahrenheit, mph).
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## Compute Routes
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Calculate distance and duration:
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```bash
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mcporter call grounding-lite.compute_routes \
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origin='{"address":"San Francisco, CA"}' \
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destination='{"address":"Los Angeles, CA"}' \
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travel_mode=DRIVE
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```
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Walking route:
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```bash
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mcporter call grounding-lite.compute_routes \
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origin='{"address":"Times Square, NYC"}' \
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destination='{"address":"Central Park, NYC"}' \
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travel_mode=WALK
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```
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Travel modes: `DRIVE` (default) or `WALK`.
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Note: Returns distance/duration only. No step-by-step directions or real-time traffic.
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## Ad-hoc Usage (without config)
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Call directly without configuring first:
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```bash
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mcporter call "https://mapstools.googleapis.com/mcp.search_places" \
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--header "X-Goog-Api-Key=$GOOGLE_MAPS_API_KEY" \
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text_query="restaurants near me"
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```
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## List Available Tools
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```bash
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mcporter list grounding-lite --schema
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```
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## Notes
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- Free during preview; pricing TBD after GA
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- Weather lookup has regional restrictions (US locations work; some international locations may not)
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- Attribution required per Google Maps Platform ToS
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- Responses contain Google Maps links - include in user-facing output
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