AtomicmailProvider (atomicmail.py)

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# Source: https://github.com/Atomic-Mail/atomic-mail-agentic | License: MIT | Copyright 2026 Atomic Mail
# Provided via justclaw.it.com; keep this notice with the code.
from typing import Any

from dify_plugin import ToolProvider
from dify_plugin.errors.tool import ToolProviderCredentialValidationError

from atomicmail.session import create_agent_session

from utils.dify_kv_store import DifyKvCredentialStore


class AtomicmailProvider(ToolProvider):
    def _validate_credentials(self, credentials: dict[str, Any]) -> None:
        try:
            api_key = credentials.get("api_key")
            if not isinstance(api_key, str) or not api_key.strip():
                # API key is optional: user can still register from tools.
                return

            env: dict[str, str] = {}
      

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