aiolichess 1.2.0

Async Python client for the Lichess REST API

aiolichess

Async Python client for the Lichess REST API.

Installation

pip install aiolichess

Quick Start

import asyncio
from aiolichess import AioLichess

async def main():
    client = AioLichess()
    user = await client.get_all(token="your_pat_here")

    print(user.username)
    print(user.perfs["blitz"].rating)
    print(user.count.win)

    await client.close()

asyncio.run(main())

With an external session

import aiohttp
from aiolichess import AioLichess

async with aiohttp.ClientSession() as session:
    client = AioLichess(session=session)
    user = await client.get_all(token="your_pat_here")

API Reference

AioLichess(session=None)

The main client class.

Parameter	Type	Description
session	aiohttp.ClientSession | None	Optional external session. If not provided, one is created internally.

---

await client.get_all(token)

Fetches all account information for the authenticated user via /api/account.

Parameter	Type	Description
token	str	Lichess personal API token

Returns a LichessUser object.

---

await client.get_user_id(token)

Fetches only the user ID of the authenticated user.

Parameter	Type	Description
token	str	Lichess personal API token

Returns a str.

user_id = await client.get_user_id(token="your_pat_here")
print(user_id)  # "drnykterstien"

---

await client.get_username(token)

Fetches only the username of the authenticated user.

Parameter	Type	Description
token	str	Lichess personal API token

Returns a str.

username = await client.get_username(token="your_pat_here")
print(username)  # "DrNykterstein"

---

await client.get_statistics(token)

Fetches rating and game count statistics across all formats.

Parameter	Type	Description
token	str	Lichess personal API token

Returns a LichessStatistics object.

stats = await client.get_statistics(token="your_pat_here")
print(stats.blitz_rating)
print(stats.rapid_games)
print(stats.puzzle_rating)

---

await client.close()

Closes the session. Only closes if the session was created internally — never closes an externally provided session.

---

Models

LichessUser

Field	Type
id	str
username	str
url	str
created_at	int
seen_at	int
play_time	int
perfs	dict[str, LichessPerf]
profile	LichessProfile | None
count	LichessCount | None

LichessPerf

Field	Type
rating	int
games	int
rd	int
prog	int
prov	bool

LichessProfile

Field	Type
flag	str | None
location	str | None
bio	str | None
fide_rating	int | None
uscf_rating	int | None
ecf_rating	int | None

LichessCount

Field	Type
all	int
rated	int
win	int
loss	int
draw	int

LichessStatistics

Field	Type
bullet_rating	int | None
blitz_rating	int | None
rapid_rating	int | None
classical_rating	int | None
puzzle_rating	int | None
correspondence_rating	int | None
bullet_games	int | None
blitz_games	int | None
rapid_games	int | None
classical_games	int | None
puzzle_games	int | None

---

Exceptions

Exception	Raised on
AioLichessError	Base exception, catch-all
AuthError	401 — invalid or missing token
RateLimitError	429 — rate limit hit, wait 60s
LichessServerError	5xx — Lichess server error

License

GPL-3.0