Best Alternatives to OSIR Domain Registrar

Line Bot MCP Server

Runtime: npx

Verified

Connects an AI agent to LINE Messaging API for messaging, user profiles, quotas, followers, and rich-menu management.

Abnormal Security MCP

Runtime: npx

Abnormal Security email threats, cases, and reporting in your terminal and your AI agents.

Palmyr

Runtime: npx

Agent infra: email, phone, social, domains, VPS, wallets. Paid per-action via x402, no API key.

Slack MCP Server

Runtime: npx

MCP server providing Slack workspace data access with message history, threads, DMs, user info, and optional message posting.

SenderKit

Runtime: npx

Build and send email, SMS, and push straight from your AI agent.

Agent Cold Email

Runtime: npx

Agent-native cold-email infrastructure: domains, mailboxes, warmup, sequences, replies via 17 tools

Mailbuttons

Runtime: npx

Governed email for AI agents: sandbox inboxes, server-side policy gate, tamper-evident audit.

AgentPing

Runtime: npx

Let your AI agent notify you by email, Slack, Discord, or webhook. One tool: send_notification.

Ms 365 MCP Server

Runtime: npx

MCP server providing access to Microsoft 365 services via Graph API with configurable toolsets and authentication.

LayerCall

Runtime: npx

Score an IP, email, phone, domain or device for fraud in one call, with the signals behind it.

MCP Emails

Runtime: npx

Read, search, send, organize, draft and schedule email across your inboxes from any MCP client.

Threadline MCP

Runtime: npx

Agent-to-agent messaging relay. Discover agents, send messages, and receive replies. Zero-config.