ErrorSchema (marshmallow_schemas.py)

API error response schema with status, message, and optional traceback fields.

from marshmallow import Schema, fields


class ErrorSchema(Schema):
    status = fields.String(example="error", description="Request status")
    message = fields.String(description="Error message")
    traceback = fields.String(load_default=None)


class SuccessSchema(Schema):
    status = fields.String(example="success", description="Request status")


class CryptoItemSchema(Schema):
    name = fields.String(
        description="Crypto identifier used in API endpoints", example="ETH"
    )
    display_name = fields.String(
        description="Human-readable crypto name", example="Ethereum"
    )


class GetCryptoResponseSchema(Schema):
    status = fields.String(description="Response status", example="success")
    crypto = fields.List(
        fields.String(),
        description="Leg

... (truncated -- full source via MCP)