專項更強Offers comprehensive email marketing and CRM tools, but is less specialized for high-volume B2B cold outreach campaigns.
#1Instantly 每月有 2,336,279 次造訪,月增率 +6%,定價模式為付費、需聯絡報價。Rivet.dev 每月有 21,359 次造訪,成長率 -44.3%,定價模式為免費增值、需聯絡報價。

在你自己的基礎設施上執行與擴展持久化 AI Agent
| 面向/指標 | ![]() | ![]() |
|---|---|---|
| 官方網域 | instantly.ai | rivet.dev |
| 定價模式 | 付費、需聯絡報價 | 免費增值、需聯絡報價 |
| 每月造訪次數 | 233.63萬 (2,336,279) | 2.14萬 (21,359) |
| 月流量變化量 | +13.14萬 (+6%) |
| -1.7萬 (-44.3%) |
| 主要市場與市佔 | 🇺🇸 美國 (47.7%) | 🇺🇸 美國 (39.4%) |
|---|
| 每月直接造訪 | 182.13萬 | 1.07萬 |
|---|
| 使用者評分 | 4.4 | 4.5 |
|---|
| 支援平台 | 網站 | 網站 |
|---|

以 AI 代理進行潛客開發、外聯與到達率的銷售觸達平台
一套為特定目的打造的代理,涵蓋業務外聯、回覆處理、潛客搜尋、到達率、合作、投資、招募與用戶研究,可組合成自動化營收流程。
數分鐘內啟動多步驟冷郵件活動;當潛客造訪網站、回覆或預約會議時,自動路由、標記並觸發後續動作。
搜尋大型 B2B 潛客資料庫,寄送前驗證信箱,並辨識匿名網站訪客以擴大潛客名單。
專用信箱帳號(AirMail)、自動預熱、收件匣投放測試與寄件者信譽監控,協助郵件進入主要收件匣。

在你自己的基礎設施上執行與擴展持久化 AI Agent
每個 Actor 都擁有 SQLite 資料庫與檔案系統,Agent 的記憶與進度可在重啟與閒置後保留,無需額外資料庫。
在你自己的基礎設施上執行不受信任或 AI 產生的程式碼,並可細緻控制網路存取、檔案系統權限與資源上限。
節點故障時其 Actor 會帶狀態遷移到其他節點,多步驟工作在崩潰後自動重播,無需自建檢查點機制。
可透過 HTTP 直接定址 Actor 或維持即時 WebSocket 連線,並用 React SDK 讓元件訂閱 Actor 狀態以即時更新。
專項更強Offers comprehensive email marketing and CRM tools, but is less specialized for high-volume B2B cold outreach campaigns.
#1專項更強擅長多來源資料增強與自訂 AI 工作流程,但比起開箱即用的陌生開發信工具需要更多設定。
Delivers enterprise-grade revenue intelligence and deal execution tools, but is significantly more expensive and complex than Instantly.

專項更強Provides reliable mailbox verification and deliverability checks, but lacks end-to-end campaign sequencing and outreach tools.

免費 / 開源Mastra is an open-source TypeScript framework for building, deploying, and observing AI agents and workflows. It gives JavaScript developers typed agents, durable workflows, memory, MCP tool support, and built-in observability so prototypes can scale into production.

提供更完整的電子郵件、LinkedIn 與電話多管道開發,但缺乏 Instantly 那種專注於無節制陌生開發信的核心優勢。

Coder is a self-hosted development infrastructure platform that gives engineering organizations secure, standardized cloud workspaces plus governance over the AI coding agents that run inside them. It is built for enterprises that need speed for developers and control for security and compliance teams.

Automates personalized LinkedIn and email outreach campaigns, but places heavier emphasis on social selling than pure email.
內建 B2B 潛在客戶資料庫與電子郵件暖身功能,但針對個別信箱到達率的報表精細度較低。
專項更強Provides reliable mailbox verification and deliverability checks, but lacks end-to-end campaign sequencing and outreach tools.
免費 / 開源Mastra is an open-source TypeScript framework for building, deploying, and observing AI agents and workflows. It gives JavaScript developers typed agents, durable workflows, memory, MCP tool support, and built-in observability so prototypes can scale into production.
讓 AI 代理真正落地的低成本雲端沙箱
Coder is a self-hosted development infrastructure platform that gives engineering organizations secure, standardized cloud workspaces plus governance over the AI coding agents that run inside them. It is built for enterprises that need speed for developers and control for security and compliance teams.
Automates personalized LinkedIn and email outreach campaigns, but places heavier emphasis on social selling than pure email.