mem0ai/mem0 · error · HTTPException

User not found.

Error message

User not found.

What it means

Error "User not found." thrown in mem0ai/mem0.

Source

Thrown at server/auth.py:122

bearer_scheme = HTTPBearer(auto_error=False)
api_key_header = APIKeyHeader(name="X-API-Key", auto_error=False)


def _mark_auth_type(request: Request, auth_type: str) -> None:
    request.state.auth_type = auth_type


def _get_default_user(db: Session) -> User | None:
    return db.scalar(select(User).order_by(User.created_at.asc()))


def _resolve_user_from_jwt(token: str, db: Session) -> User:
    payload = decode_token(token)
    if payload.get("type") != "access":
        raise HTTPException(status_code=401, detail="Invalid token type.")
    user = db.get(User, payload.get("sub"))
    if user is None:
        raise HTTPException(status_code=401, detail="User not found.")
    return user


def _resolve_user_from_api_key(key: str, db: Session) -> User:
    prefix = key[:12] if len(key) >= 12 else key
    candidates = (
        db.execute(select(APIKey).where(APIKey.key_prefix == prefix, APIKey.revoked_at.is_(None))).scalars().all()
    )

    for candidate in candidates:
        if verify_api_key_hash(key, candidate.key_hash):
            candidate.last_used_at = datetime.now(timezone.utc)
            db.commit()
            user = db.get(User, candidate.created_by)
            if user is None:
                raise HTTPException(status_code=401, detail="API key owner not found.")
            return user

View on GitHub (pinned to 001c235229)

Solutions

1. Verify the user still exists; the account may have been deleted. Log in again.

When it happens

Trigger: Thrown at server/auth.py:122 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of mem0ai/mem0@001c235229 (2026-08-15). Data as JSON: /api/errors/76b5ebfd21897027. Report an issue: GitHub.