Open-Core GIS Platform
Honua serves GeoServices REST, OGC API, OData, vector tiles, WMS, and WMTS from one PostGIS-backed runtime. It adds gRPC for faster apps and mobile, MCP for AI agents, and typed SDKs for JavaScript, .NET, and Python. No per-user fees. Self-hosted or managed.
What You Get
Bring in live Esri REST services and common spatial files. Serve them through ArcGIS-compatible and OGC-certified endpoints. Build new apps on gRPC, typed SDKs, and MCP without touching the legacy clients.
CITE Certified
Not a compatibility checklist. Verified conformance with exact test counts.
The Problem
Esri charges per seat and per extension. GeoServer is free but painful to scale and modernize. Mapbox stops at tiles. None of them give you SDKs, mobile, analytics, and agent access from one runtime.
Existing ArcGIS and QGIS clients keep working through GeoServices REST and OGC APIs while you move to better interfaces underneath.
Docker, Kubernetes, AWS, Azure, and serverless deployment with OpenTelemetry tracing, health endpoints, and zero-downtime upgrades built in.
Run Honua in your own cloud. Add analysts, field staff, viewers, and agents without triggering a licensing event.
OData puts spatial data in Excel and Power BI. gRPC gives developers typed access. MCP gives AI agents a supported query interface.
How It Works
Legacy clients, new applications, and AI agents connect to the same Honua deployment through different protocols.
| Client | Connects through | What they get |
|---|---|---|
| ArcGIS Pro, QGIS, web maps, Power BI, Excel | GeoServices REST, OGC API, OData, WMS, WMTS, tiles | Drop-in migration. Existing workflows keep running. |
| New web apps, services, mobile clients | gRPC and typed SDKs (JS, .NET, Python) | Faster integration, binary transport, strong types. |
| AI assistants, copilots, coding agents | MCP | Service discovery, schema inspection, filtered queries. |
Migration
You do not rewrite everything on day one. Import your services, keep legacy clients running, and move new work onto better interfaces at your own pace.
Import live Esri REST services and common spatial files (GeoJSON, Shapefile, GeoPackage, KML, GPX) with metadata preserved.
The JavaScript SDK includes usage scanners, codemods, compatibility wrappers, and parity matrices for ArcGIS web apps.
Legacy clients keep hitting GeoServices REST and OGC endpoints. New apps move to gRPC, SDKs, and MCP on their own schedule.
Parity matrices and reconcile flows show exactly what has migrated, what gaps remain, and what manual work is left.
Compare
| Current stack | The pain | What Honua changes |
|---|---|---|
| Esri / ArcGIS | Per-user cost growth, extension taxes, vendor lock-in across clients and workflows. | Wire-compatible FeatureServer and MapServer. No seat fees. Import existing services. Typed SDKs and migration codemods. |
| GeoServer | Java complexity, hard to scale, dated developer experience, no mobile or SDK story. | Cloud-native .NET runtime with Native AOT. Three-language SDKs. Mobile. SLD import. Same OGC standards, better operations. |
| Mapbox / tiles-only tools | Great rendering, but no feature services, no offline sync, no field workflows, pricing uncertainty. | Full feature server + tiles + standards + mobile + field workflows. Self-hosted. Predictable pricing. |
| Fulcrum / Survey123 | Another seat-priced silo for field collection. Separate vendor, separate licensing. | Mobile SDK, offline GeoPackage sync, forms, and field workflows built into the platform. No per-user mobile tax. |
Roadmap
The server runtime, SDKs, and mobile are shipping. Data services, cloud-native formats, and managed cloud are next.
Shipping
GeoServices REST (FeatureServer, MapServer, ImageServer, Geometry Service), OGC API, OData, gRPC, MCP, vector tiles, WMS, WMTS, admin APIs, and Blazor admin UI.
Shipping
JavaScript, .NET, and Python SDKs with Esri compat wrappers, migration scanners, codemods, and MCP server package.
Shipping
.NET MAUI mobile SDK with offline GeoPackage sync, forms, background upload, gRPC transport, and AR/IoT direction.
Building
Geocoding, routing, spatial analytics, H3 aggregation, and real-time streaming on the same runtime.
Building
GeoParquet, FlatGeobuf, PMTiles, and Cloud Optimized GeoTIFF as first-class import, query, and export paths.
Building
Self-hosted today. Honua Cloud for teams that want the platform without managing the infrastructure.
Standards
Honua publishes exact conformance test counts for OGC API Features, Tiles, WMS, and WMTS. Evaluate the evidence before you commit.
See protocol coveragePricing
Community edition is free. Commercial tiers are per-node. Adding users, field staff, SDKs, or agent workflows never triggers a new license purchase.
See pricing and licensingStart Here
Migration path, deployment model, and the broader platform your team can run on.
PlatformSDKs, gRPC, MCP, quickstarts, and the interfaces you build on.
SDKsOffline sync, MAUI mobile, forms, and how Honua replaces seat-priced field tools.
MobileOData for Power BI and Excel, OGC APIs, cloud-native formats, and the analytics direction.
ProtocolsDeployment targets, edition model, governance boundaries, and commercial packaging.
PricingDocker quickstart, first API call, SDK install, and links into deeper docs.
DocsEarly Access
Tell us what you are replacing, which clients matter, and whether the pressure is cost, standards, mobile, SDK adoption, or platform consolidation.