Address

Self-hosted real-address generator backed by official registries and open map data for 27 countries and regions

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Address returns addresses that actually exist instead of randomly assembled strings. Every record comes from an official address register, open map data, or a validated geocoding result, and carries its source, precision, and coordinates. Missing fields stay empty; nothing is invented.

Use it for form and checkout testing, address-format validation, logistics demos, and anywhere an address must look real and be real.

• 27 countries and regions – Region, city, district, and postcode filters that follow each country's real administrative hierarchy. A filter with no data returns an error instead of silently switching to another area.
• Traceable sources – Residential communities for China; premise- and street-level addresses elsewhere, labelled with precision and residential evidence.
• Ten display languages – Native, English, Simplified and Traditional Chinese, Japanese, Korean, German, French, Spanish, and Portuguese.
• Hands-off synchronization – Incremental imports with bounded retries, exponential backoff, quota waits, and source-exhaustion detection, so failing work is never repeated forever.
• Admin console – Dashboard, country workspace, sync history, quick locations, provider credentials, translation routing, access control, and API tokens.
• Open API – Bearer-authenticated JSON API for single and batch generation, location search, coverage, and address translation, with an OpenAPI 3.1 document.
• Single-file deployment – One Docker Compose file runs the app, PostgreSQL, migrations, and the sync service; internal secrets are generated and persisted automatically.

• Linux (AMD64 or ARM64)
• Docker Engine 24+ with Docker Compose v2
• 4 GB RAM (8 GB or more recommended for the first import of large countries)

# 1. Create a deployment directory and download the Compose file
mkdir address && cd address
curl -fsSLo docker-compose.yml https://raw.githubusercontent.com/daimon3332/address/main/docker-compose.yml

# 2. Start all services
docker compose up -d

# 3. Check readiness
docker compose ps
curl -fsS http://127.0.0.1:8787/api/v1/ready

On first start the stack:

• creates persistent data/ and runtime/ directories next to the Compose file;
• generates the database password, configuration encryption key, and service tokens in data/secrets/;
• runs database migrations, then starts the API and the sync service.

1. Open http://127.0.0.1:8787/admin/ and sign in with the initial password admin.
2. Change the administrator password when prompted.
3. Decide under Access & Security whether the public generator needs a password.
4. Create an API token under API Tokens for external clients.

To start with your own password, set ADMIN_INITIAL_PASSWORD before the first docker compose up -d.

The API listens on 127.0.0.1:8787 only. Put it behind an HTTPS reverse proxy and create a .env next to the Compose file:

ALLOWED_ORIGINS=https://address.example.com
TRUST_PROXY=true
COOKIE_SECURE=true

See the deployment guide for Nginx and Caddy examples, upgrades, backups, and restores.

Open http://127.0.0.1:8787/, pick a country, area, and display language, and generate. Results can be copied, exported, saved to favorites, or opened in Google Maps or AMap.

curl -fsS "http://127.0.0.1:8787/api/v1/generate?country=US&city=Seattle" \
  -H "Authorization: Bearer YOUR_API_TOKEN"

{
  "data": {
    "country": "US",
    "filters": { "city": "Seattle" },
    "filterMatchLevel": "exact",
    "result": {
      "address": {
        "formattedAddress": "4019 Aikins Avenue Southwest, Seattle, WA, 98116",
        "matchLevel": "premise",
        "propertyType": "residential",
        "coordinates": { "latitude": 47.567944, "longitude": -122.40706 }
      }
    }
  }
}

The response is abridged. matchLevel is the address precision (street, premise, or subpremise); propertyType is residential only when independent residential evidence exists. See the API reference for every endpoint, parameter, and error code.

The service runs without any third-party key, using open sources that need no authorization. China map platforms, Google Geocoding, and translation services only extend data for specific countries or enable online translation; add them under Map Keys in the admin console. See API keys for how to obtain each one.

Admin · Dashboard	Admin · Country workspace
Country detail	Translation credential test
Public coverage monitor	US address

Sources, field provenance, and residential evidence per country are listed in the data sources document.

Browser ──► Astro + React pages
               │
               ▼
           Hono API ──► PostgreSQL (address pool, admin catalog, control data)
               │
               └─ prebuilt random/filter indexes, local formatting and translation

Sync service ──► official registers / OpenStreetMap / Overture / map platforms
               │  validates source, administrative area, language, coordinates
               ▼
           per-country transactional publish ──► PostgreSQL

A country is complete only when three rules hold at once: the valid-address total, the lowest-level administrative coverage, and the per-level node minimums. When a source is proven to have nothing new, the country shows Source limit reached and stops re-entering the queue until the source changes.

Source code is released under the MIT License. Upstream datasets keep their own licenses and attribution requirements; see the data sources document.

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