atlaspi-client

Official Python client for the AtlasPI Historical Geography API — free, public, no-auth REST API with 862 historical entities, 490 events, 94 dynasty chains from 4500 BCE to 2024.

Install

pip install atlaspi-client

Quick start

from atlaspi import AtlasPI

client = AtlasPI()  # defaults to https://atlaspi.it

# What was happening in 1250?
snapshot = client.snapshot(year=1250)
for period in snapshot["periods"]["items"]:
    print(f"{period['name']} ({period['region']})")

# Find similar entities
similar = client.entities.similar(entity_id=1, limit=5)
for ent in similar["similar"]:
    print(ent["name_original"], ent["similarity_score"])

# Events on a specific calendar day
today = client.events.on_this_day("07-14")  # Bastille Day
for event in today["events"]:
    print(f"{event['year']}: {event['name_original']}")

# Batch fetch (N entities in one round-trip)
batch = client.entities.batch([1, 2, 3, 42, 100])
print(f"Got {batch['found']} of {batch['requested']} entities")

# Full detail with all fields
entity = client.entities.get(1)
print(f"{entity['name_original']} ({entity['year_start']}-{entity['year_end']})")
print(f"Boundary: {entity['boundary_source']} ({entity['confidence_score']})")

Async support

import asyncio
from atlaspi import AsyncAtlasPI

async def main():
    async with AsyncAtlasPI() as client:
        snap = await client.snapshot(year=1500)
        similar = await client.entities.similar(entity_id=1)

asyncio.run(main())

Key endpoints

The client mirrors AtlasPI's endpoint taxonomy:

• client.entities.* — entities (list, get, batch, similar, periods, events, etc.)
• client.events.* — events (list, get, on_this_day, at_date, periods)
• client.periods.* — periods (list, get, by_slug, at_year)
• client.chains.* — dynasty chains
• client.cities.* — cities
• client.routes.* — trade routes
• client.search.* — fuzzy + advanced search
• client.snapshot() — world snapshot at year
• client.stats() — aggregate statistics
• client.export.* — GeoJSON, CSV bulk export

See API docs for the full endpoint catalog.

License

Apache 2.0.

Source

• GitHub: https://github.com/Soil911/AtlasPI
• API: https://atlaspi.it
• Issues: https://github.com/Soil911/AtlasPI/issues