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Fast, Scalable Earth intelligence.

Turn imagery into structured, queryable data your applications and agents can use.

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One API to turn raw imagery into searchable, comparable Earth data — index any area, find anything by meaning, and track what's changed.

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From Imagery to Application

LGND replaces the fragmented stack of imagery providers, geospatial processing, tiling, model hosting, vector databases, and custom search logic with one unified API.

  • Collections & Indexing

    Generate embeddings from your own imagery and build vector indexes over any area and time range.

    • Define a geographic area and date range to create a custom collection.
    • Build vector indexes on top of collections for fast similarity search.
    • Ready-to-use collections of open imagery.

  • Similarity Search

    Find visually or semantically similar locations across satellite imagery with geo-embeddings.

    • Search by chip ID to find visually similar tiles.
    • Use text descriptions to find features by concept (e.g. "solar farm").
    • Constrain results spatially with a GeoJSON polygon and configure top_k.

  • Change Detection

    Compare historical and current imagery to detect semantic or visual change in any region.

    • Detect change using text descriptions or chip-based visuals.
    • Combine positive and negative examples to tune detection.
    • Results scored and ranked by degree of change.
Built on the API

Discover is an example application of how to use the LGND API to combine natural language, similarity search, and change detection for rapid insight discovery — no custom ML required.

Try Discover Now How we built Discover
  • Find new solar arrays in Texas

    Fast, accurate change detection across multiple time periods.

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LGND Studio

A no-code, collaborative app that lets you create and validate geospatial datasets.
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