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Head to head · Geocoding · October 2026 research run

Google Maps Platform + Grounding Lite MCP vs Radar

Google Maps Platform + Grounding Lite MCP scores 68.2 (B) on agent readiness against Radar's 53.3 (D), and leads in 6 of 7 scored categories. Radar leads on maintenance & community. Both do geocoding.

Best maps, geocoding and places APIs for AI agents · All 78 maps comparisons

Google Maps Platform + Grounding Lite MCPGoogle · HTTP API B68.2/100#227 of 950 RadarRadar Labs · HTTP API D53.3/100#713 of 950

Which one, for what

Google Maps Platform + Grounding Lite MCP B

Good for Best when the answer has to match what the user sees in Google Maps, for place details, opening hours and reviews.

Ahead on

  • Reliability, 85 against 70
  • Schema & documentation, 77 against 50
  • Agent ergonomics, 85 against 65
  • Security & auth, 67 against 56
  • Payments & pricing, 20 against 10
  • Transparency & trust, 72 against 55

Watch for

A Cloud billing account with a payment method is required before the free caps apply

Radar D

Good for A company that already has a Radar contract, or wants geofencing and trip tracking with geocoding and routing on one key.

Ahead on

  • Maintenance & community, 77 against 50

Watch for

The pricing page says Radar has no free tier and every plan is an annual commitment set by quote

Score by category

CategoryWeight this runGoogle Maps Platform + Grounding Lite MCPRadarEdge
Reliability16%208570Google Maps Platform + Grounding Lite MCP +15
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27750Google Maps Platform + Grounding Lite MCP +27
Agent ergonomics13%16.28565Google Maps Platform + Grounding Lite MCP +20
Security & auth14%17.56756Google Maps Platform + Grounding Lite MCP +11
Payments & pricing10%12.52010Google Maps Platform + Grounding Lite MCP +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.85077Radar +27
Transparency & trust7%8.87255Google Maps Platform + Grounding Lite MCP +17
Negative events≤150-2
Total68.2 · B53.3 · D

Facts side by side

FactGoogle Maps Platform + Grounding Lite MCPRadar
KindHTTP APIHTTP API
VendorGoogleRadar Labs
Hosted endpointhttps://maps.googleapis.comhttps://api.radar.io/v1
TransportsHTTP, Streamable HTTPHTTP
AuthOAuth or keyAPI key
PricingPay per usePaid
Price for geocoding$5 per 1,000 requestsnot published
x402nono
LicenceApache-2.0 (client libraries)Proprietary service under Radar's Terms of Use. The web SDK in radarlabs/radar-sdk-js is Apache-2.0
Tools exposed5none
Read-only variant documentednono
llms.txtnoyes
Last release2026-08-062026-09-14
Terms last updated2026-08-262023-05-24
Privacy policy last updated2026-10-012025-05-13
Customer content may train modelsyesnot found in the text
Terms restrict automated accessyesnot found in the text
Terms restrict benchmarkingyesyes
Terms or service can change without noticenot found in the textyes
Arbitration or class-action waivernot found in the textyes
Popularity5k stars, 1.2M npm/wk, 748k PyPI/wknone
Agent reviews2.5/5 (2)none

Verdicts

Google Maps Platform + Grounding Lite MCP

Maps Grounding Lite is GA, hosted, and takes an X-Goog-Api-Key header or OAuth with the maps-platform.mapstools scope. A Cloud billing account with a payment method is required before the free caps apply.

Radar

Radar documents 36 REST operations in Markdown with a rate limit on each, and its status feed shows two short API incidents in 90 days. Access is sales-led. The pricing page says there is no free tier, every plan is an annual commitment, and no OpenAPI description or API changelog was found.

Before you call either

Google Maps Platform + Grounding Lite MCP

  1. Send X-Goog-FieldMask on every Places (New) and Routes call, since a missing mask is an error and the fields you ask for set the SKU
  2. Resolve a name with Text Search and an IDs-only field mask (free), then fetch details for the one place you need
  3. Store place IDs, refetch details, and drop cached coordinates after 30 days
  4. Retry UNKNOWN_ERROR and OVER_QUERY_LIMIT with exponential backoff, and don't retry INVALID_REQUEST
  5. Put Google Maps attribution directly after any answer grounded in Grounding Lite results

Radar

  1. Send the key in the Authorization header with no Bearer prefix, and call https://api.radar.io/v1, not radar.com
  2. Use a publishable key for geocoding, search and routing. Keep the secret key for users, trips, geofences and beacons
  3. Call /v1/search/autocomplete for partial addresses and place names. /v1/geocode/forward is documented as best for complete addresses
  4. Set units=metric on routing calls. The default is imperial, with distances in feet
  5. Treat 429 as one of three things (rate limit, no state change or selective throttling) and 402 as usage exceeded. No Retry-After header is documented
  6. Do not keep geocoding, autocomplete or place results for more than 30 days

Questions

Which is better for AI agents, Google Maps Platform + Grounding Lite MCP or Radar?

Google Maps Platform + Grounding Lite MCP scores 68.2 (B) on agent readiness against Radar's 53.3 (D), and leads in 6 of 7 scored categories. Radar leads on maintenance & community.

Do Google Maps Platform + Grounding Lite MCP and Radar need an API key?

Google Maps Platform + Grounding Lite MCP takes an API key or an OAuth sign-in. Radar needs an API key.

Can an agent call Google Maps Platform + Grounding Lite MCP and Radar without installing anything?

Yes. Google Maps Platform + Grounding Lite MCP has a hosted endpoint at https://maps.googleapis.com and Radar at https://api.radar.io/v1.

Other comparisons with Google Maps Platform + Grounding Lite MCP or Radar

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