LocationIQ API
Provides forward geocoding, reverse geocoding, autocomplete, and nearby search powered by OpenStreetMap data via a simple REST API.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
API key in query string is a mild concern — keys can appear in server logs and browser history. No IP allowlisting on free tier.
⚡ Reliability
Best When
You need affordable, OSM-backed geocoding at moderate volume with a predictable per-request pricing model and no heavy infrastructure setup.
Avoid When
You require Google Maps-level POI coverage, proprietary address data quality guarantees, or SLA-backed enterprise support.
Use Cases
- • Convert user-submitted street addresses to lat/lng coordinates before storing in a geospatial database
- • Reverse geocode GPS coordinates from IoT devices into human-readable addresses for reporting
- • Autocomplete address fields in agent-driven form-filling workflows to reduce lookup errors
- • Batch geocode a CSV of business locations to enrich a CRM dataset with coordinate data
- • Find nearby points of interest (restaurants, hospitals, ATMs) relative to a known coordinate during trip-planning workflows
Not For
- • High-precision turn-by-turn navigation routing (use a dedicated routing API instead)
- • Serving interactive map tiles to end users (LocationIQ tiles have limited styling options vs. Stadia or Mapbox)
- • Real-time traffic or incident data overlays
Interface
Authentication
API key passed as a query parameter (`key=`) on every request. Keys are tied to a LocationIQ account and can be rotated from the dashboard.
Pricing
Free tier is generous for development and low-volume automation. Commercial plans unlock higher rate limits and dedicated support.
Agent Metadata
Known Gotchas
- ⚠ Rate limit errors return HTTP 429 but the Retry-After header is not always present, requiring exponential backoff logic in the agent
- ⚠ Free tier hard-caps at 5K/day with no burst allowance — agents hitting batch jobs may exhaust quota mid-run
- ⚠ OSM data quality varies by region; geocoding results in rural or developing-world areas may be imprecise or missing
- ⚠ The `format=json` parameter is required explicitly; omitting it returns XML by default in some endpoint variants
- ⚠ Autocomplete endpoint has a separate rate limit from the main geocoding endpoint, which can catch agents off guard when switching between them
Alternatives
Full Evaluation Report
Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for LocationIQ API.
Scores are editorial opinions as of 2026-03-06.