TA-Lib MCP Server

"""Market data model.""" from typing import List, Optional from pydantic import BaseModel, Field, validator, field_validator class MarketData(BaseModel): """OHLCV market data model.""" close: List[float] = Field(..., description="Closing prices array") open: Optional[List[float]] = Field(None, description="Opening prices array") high: Optional[List[float]] = Field(None, description="Highest prices array") low: Optional[List[float]] = Field(None, description="Lowest prices array") volume: Optional[List[float]] = Field(None, description="Trading volumes array (optional)") timestamp: Optional[List[int]] = Field(None, description="Unix timestamps (optional)") @field_validator('open', 'high', 'low', 'close') @classmethod def validate_prices_not_empty(cls, v): if not v: raise ValueError("Price arrays cannot be empty") return v @field_validator('volume') @classmethod def validate_volume_length(cls, v, info): if v is not None: length = len(info.data.get('close', [])) if len(v) != length: raise ValueError("Volume array must match price array length") return v @field_validator('timestamp') @classmethod def validate_timestamp_length(cls, v, info): if v is not None: length = len(info.data.get('close', [])) if len(v) != length: raise ValueError("Timestamp array must match price array length") return v @property def length(self) -> int: """Total number of data points.""" return len(self.close)