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import argparse
import base64
import json
import os
import sys
from datetime import datetime, timedelta, timezone
from pathlib import Path
from typing import Any
import requests
UTC = timezone.utc
CST = timezone(timedelta(hours=8), name="CST")
JSONDict = dict[str, Any]
def parse_args() -> argparse.Namespace:
parser = argparse.ArgumentParser(
description="Query ChatGPT Codex usage from /backend-api/wham/usage."
)
parser.add_argument(
"account_name",
nargs="?",
help="Account name used to load account/<account_name>.auth.json. If omitted, load all *.auth.json files in account/.",
)
parser.add_argument(
"--account-dir",
default="account",
help="Directory containing <account_name>.auth.json files.",
)
parser.add_argument(
"--chatgpt-url",
default="https://chatgpt.com/backend-api/wham/usage",
help="ChatGPT usage endpoint.",
)
parser.add_argument(
"--raw-json",
action="store_true",
help="Print the full JSON response body.",
)
parser.add_argument(
"--raw-headers",
action="store_true",
help="Print response headers.",
)
return parser.parse_args()
def print_json(data: Any) -> None:
print(json.dumps(data, indent=2, ensure_ascii=False))
def load_auth_json(path_str: str | Path | None) -> JSONDict | None:
if not path_str:
return None
path = Path(path_str).expanduser()
if not path.is_file():
return None
try:
return json.loads(path.read_text(encoding="utf-8"))
except (OSError, json.JSONDecodeError):
return None
def get_nested_string(data: JSONDict | None, *keys: str) -> str | None:
current: Any = data
for key in keys:
if not isinstance(current, dict):
return None
current = current.get(key)
return current if isinstance(current, str) and current else None
def format_dt(dt: datetime | None) -> str:
if dt is None:
return "-"
return dt.astimezone(CST).strftime("%Y-%m-%d %H:%M:%S %Z")
def format_cst(dt: datetime | None) -> str:
return format_dt(dt)
def epoch_ms_to_dt(value: Any) -> datetime | None:
if value is None:
return None
try:
raw = int(value)
except (TypeError, ValueError):
return None
# Newer responses sometimes use epoch seconds, older ones use epoch milliseconds.
timestamp = raw / 1000 if raw > 10**11 else raw
return datetime.fromtimestamp(timestamp, tz=UTC)
def first_dict(data: Any, *keys: str) -> JSONDict | None:
for key in keys:
value = data.get(key) if isinstance(data, dict) else None
if isinstance(value, dict):
return value
return None
def decode_jwt_exp(token: str) -> datetime | None:
parts = token.split(".")
if len(parts) != 3:
return None
try:
payload = parts[1]
payload += "=" * (-len(payload) % 4)
data = json.loads(base64.urlsafe_b64decode(payload.encode("ascii")))
exp = data.get("exp")
if exp is None:
return None
return datetime.fromtimestamp(int(exp), tz=UTC)
except (ValueError, TypeError, json.JSONDecodeError):
return None
def get_percent_left(value: JSONDict) -> float | int | None:
percent_left = value.get("percent_left")
if percent_left is None:
percent_left = value.get("remaining_percent")
if percent_left is not None:
return percent_left
used_percent = value.get("used_percent")
try:
if used_percent is not None:
return max(0, 100 - float(used_percent))
except (TypeError, ValueError):
return None
return None
def resolve_limit_window(value: JSONDict) -> JSONDict:
if (
"reset_at" not in value
and "reset_time_ms" not in value
and isinstance(value.get("primary_window"), dict)
):
return value["primary_window"]
return value
def parse_limit_entry(name: str, value: Any) -> JSONDict | None:
if not isinstance(value, dict):
return None
value = resolve_limit_window(value)
percent_left = get_percent_left(value)
reset_time_ms = value.get("reset_time_ms")
if reset_time_ms is None:
reset_time_ms = value.get("reset_at")
window_seconds = value.get("limit_window_seconds")
return {
"name": name,
"percent_left": percent_left,
"reset_time_ms": reset_time_ms,
"reset_at": epoch_ms_to_dt(reset_time_ms),
"limit_window_seconds": window_seconds,
}
def infer_limit_name(window_seconds: Any) -> str | None:
if not isinstance(window_seconds, (int, float)):
return None
if window_seconds <= 6 * 3600:
return "five_hour"
if window_seconds >= 6 * 24 * 3600:
return "weekly"
return None
def relabel_rate_limits(primary: JSONDict | None, secondary: JSONDict | None) -> tuple[JSONDict | None, JSONDict | None]:
for entry in (primary, secondary):
if not entry:
continue
inferred_name = infer_limit_name(entry.get("limit_window_seconds"))
if inferred_name:
entry["name"] = inferred_name
if primary and secondary and primary.get("name") == secondary.get("name"):
if primary.get("name") == "weekly":
primary["name"] = "five_hour"
else:
secondary["name"] = "weekly"
if primary and primary.get("name") == "weekly" and secondary is None:
return None, primary
if secondary and secondary.get("name") == "five_hour" and primary is None:
return secondary, None
return primary, secondary
def parse_rate_limits(data: JSONDict) -> tuple[JSONDict | None, JSONDict | None]:
primary = None
secondary = None
for primary_key in ("five_hour", "five_hour_limit", "five_hour_rate_limit", "primary"):
if primary_key in data:
primary = parse_limit_entry("five_hour", data.get(primary_key))
if primary:
break
for secondary_key in ("weekly", "weekly_limit", "weekly_rate_limit", "secondary"):
if secondary_key in data:
secondary = parse_limit_entry("weekly", data.get(secondary_key))
if secondary:
break
if primary is None:
primary = parse_limit_entry("five_hour", data.get("primary_window"))
if secondary is None:
secondary = parse_limit_entry("weekly", data.get("secondary_window"))
return relabel_rate_limits(primary, secondary)
def format_percent(value: Any) -> str:
return f"{value:g}" if isinstance(value, (int, float)) else str(value if value is not None else "-")
def percent_sort_value(value: Any, descending: bool) -> tuple[int, float]:
if isinstance(value, (int, float)):
numeric_value = float(value)
return (0, -numeric_value if descending else numeric_value)
return (1, 0.0)
def get_auth_paths(account_dir: str, account_name: str | None) -> list[Path]:
base_dir = Path(account_dir)
if account_name:
return [base_dir / f"{account_name}.auth.json"]
return sorted(base_dir.glob("*.auth.json"))
def get_account_name_from_path(path: Path) -> str:
suffix = ".auth.json"
return path.name[: -len(suffix)] if path.name.endswith(suffix) else path.stem
def build_summary_row(account_name: str, five_hour: JSONDict | None, weekly: JSONDict | None) -> JSONDict:
return {
"account": account_name,
"five_hour_percent": five_hour["percent_left"] if five_hour else None,
"weekly_percent": weekly["percent_left"] if weekly else None,
"weekly_reset_at": weekly["reset_at"] if weekly else None,
}
def print_summary_rows(rows: list[JSONDict]) -> None:
if not rows:
return
sorted_rows = sorted(
rows,
key=lambda row: (
percent_sort_value(row.get("five_hour_percent"), descending=True),
percent_sort_value(row.get("weekly_percent"), descending=True),
format_cst(row.get("weekly_reset_at")),
row["account"],
),
)
display_rows = []
for row in sorted_rows:
display_rows.append(
{
"account": str(row["account"]),
"five_hour": format_percent(row.get("five_hour_percent")),
"weekly": format_percent(row.get("weekly_percent")),
"weekly_reset": format_cst(row.get("weekly_reset_at")),
}
)
headers = {
"account": "account",
"five_hour": "five_hour%",
"weekly": "weekly%",
"weekly_reset": "weekly_reset",
}
widths = {
key: max(len(headers[key]), max(len(item[key]) for item in display_rows))
for key in headers
}
print(
f"{headers['account']:<{widths['account']}} "
f"{headers['five_hour']:>{widths['five_hour']}} "
f"{headers['weekly']:>{widths['weekly']}} "
f"{headers['weekly_reset']:<{widths['weekly_reset']}}"
)
for item in display_rows:
print(
f"{item['account']:<{widths['account']}} "
f"{item['five_hour']:>{widths['five_hour']}} "
f"{item['weekly']:>{widths['weekly']}} "
f"{item['weekly_reset']:<{widths['weekly_reset']}}"
)
def validate_token_inputs(
token: str,
account_id: str,
auth_token: str | None,
auth_account_id: str | None,
) -> int | None:
if token.startswith("sess-"):
print("status: invalid_token_type", file=sys.stderr)
print(
"message: --chatgpt-token looks like a session token (sess-...). Use the JWT access_token instead.",
file=sys.stderr,
)
if auth_token:
print(
"hint: Found tokens.access_token in auth.json; omit --chatgpt-token or pass that value instead.",
file=sys.stderr,
)
return 1
token_exp = decode_jwt_exp(token)
if token_exp is not None and token_exp <= datetime.now(UTC):
print("status: expired", file=sys.stderr)
print(f"message: access_token expired at {format_dt(token_exp)}", file=sys.stderr)
if auth_token and auth_token != token:
auth_token_exp = decode_jwt_exp(auth_token)
hint = format_dt(auth_token_exp) if auth_token_exp else "unknown time"
print(f"hint: auth.json contains a different access_token expiring at {hint}", file=sys.stderr)
return 1
if auth_account_id and account_id != auth_account_id:
print("warning: supplied --account-id does not match auth.json tokens.account_id", file=sys.stderr)
return None
def handle_error_response(response: requests.Response, data: Any, raw_json: bool) -> int | None:
if response.status_code == 401:
print("status: expired", file=sys.stderr)
print("message: access_token expired or invalid", file=sys.stderr)
if raw_json:
print_json(data)
return 3
if response.status_code == 403:
print("status: forbidden", file=sys.stderr)
print("message: account has no access to this endpoint or is in an abnormal state", file=sys.stderr)
if raw_json:
print_json(data)
return 3
if response.status_code >= 400:
print(f"HTTP {response.status_code}", file=sys.stderr)
print_json(data)
return 3
return None
def fetch_chatgpt_usage(auth_path: Path, args: argparse.Namespace) -> tuple[int, JSONDict | None]:
auth_data = load_auth_json(auth_path)
account_name = get_account_name_from_path(auth_path)
auth_token = get_nested_string(auth_data, "tokens", "access_token")
auth_account_id = get_nested_string(auth_data, "tokens", "account_id")
if not auth_data:
print(f"{account_name}: auth file not found or invalid", file=sys.stderr)
return 1, None
if not auth_token:
print(f"{account_name}: missing access_token", file=sys.stderr)
return 1, None
if not auth_account_id:
print(f"{account_name}: missing account_id", file=sys.stderr)
return 1, None
validation_error = validate_token_inputs(
auth_token,
auth_account_id,
auth_token,
auth_account_id,
)
if validation_error is not None:
return validation_error, None
headers = {
"Authorization": f"Bearer {auth_token}",
"Accept": "application/json",
"ChatGPT-Account-Id": auth_account_id,
"Origin": "https://chatgpt.com",
"Referer": "https://chatgpt.com/",
"User-Agent": "Mozilla/5.0",
}
try:
response = requests.get(args.chatgpt_url, headers=headers, timeout=60)
except requests.RequestException as exc:
print(f"Request failed: {exc}", file=sys.stderr)
return 2, None
if args.raw_headers:
print("=== Headers ===")
print_json(dict(response.headers))
print()
try:
data = response.json()
except ValueError:
print(f"HTTP {response.status_code}", file=sys.stderr)
print(response.text, file=sys.stderr)
return 3, None
error_response = handle_error_response(response, data, args.raw_json)
if error_response is not None:
return error_response, None
if args.raw_json:
print("=== Raw JSON ===")
print_json(data)
print()
rate_limits = first_dict(data, "rate_limit", "rate_limits")
if rate_limits is None:
return 0, build_summary_row(account_name, None, None)
five_hour, weekly = parse_rate_limits(rate_limits)
return 0, build_summary_row(account_name, five_hour, weekly)
def main() -> None:
args = parse_args()
auth_paths = get_auth_paths(args.account_dir, args.account_name)
if not auth_paths:
print("No auth files found.", file=sys.stderr)
sys.exit(1)
exit_code = 0
summary_rows: list[JSONDict] = []
for auth_path in auth_paths:
current_exit_code, summary_row = fetch_chatgpt_usage(auth_path, args)
exit_code = max(exit_code, current_exit_code)
if summary_row is not None and not args.raw_json:
summary_rows.append(summary_row)
if summary_rows:
print_summary_rows(summary_rows)
sys.exit(exit_code)
if __name__ == "__main__":
main()
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