Unisender alternatives
24 email MCP servers from other publishers do the same job as Unisender. The closest match comes first, then the best rated, with at most two per publisher.
Email infrastructure for AI agents: send, read replies as threads, campaigns, per-key limits.
No reviews yetgateway-ready1452/wkFreeSend transactional email, run campaigns, manage contacts and automations, audit deliverability.
No reviews yetgateway-ready1139/wkFreeAI-native email marketing. Campaigns, automations, transactional, contacts, and analytics.
No reviews yetlocal · npm233/wkFreeProgrammable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.
No reviews yetgateway-ready261234/wkFreeMicrosoft Outlook MCP server — 22 tools for email, calendar, contacts, and mailbox management.
No reviews yetlocal · npm37328/wkFreeMCP server for Tomba email finder, verification, and contact enrichment API
No reviews yetgateway-ready837/wkFree55 tools, 7 Resources, Sigma rules, email SPF/DMARC, MITRE, CVE/KEV, risk_score. No key.
No reviews yetgateway-ready34FreeEmail infrastructure and authentication for developers: domains, inbox routes, auth apps, deploys.
No reviews yetlocal · mixed742/wkFreeAgent infra: email, phone, social, domains, VPS, wallets. Paid per-action via x402, no API key.
No reviews yetgateway-ready6FreeUnified MCP server for Email, Calendar & Contacts (Google, M365, Zoho, IMAP/SMTP, DAV).
No reviews yetlocal · npm368/wkFreeOfficial Lumail email marketing MCP for campaigns, subscribers, and workflows.
No reviews yetgateway-ready2FreeAPI-key pre-action risk gate: any irreversible agent action (money, SQL, delete, email).
No reviews yetlocal · npm64/wkFreeRender markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.
No reviews yetgateway-ready1.4k5.2k/wkFreeAI-powered OSINT agent & MCP server. 16 tools: email, breach, IP, WHOIS, DNS, Shodan, GitHub & more.
No reviews yetlocal · pypi1.6k886/wkFreeAgent-Native Superhuman - email client with keyboard shortcuts and AI triage
No reviews yetgateway-ready4.9kFreeAI email inbox and sending tools with attachments, search, live events, and webhooks.
No reviews yetgateway-ready65327/wkFreeMac & Windows: let ChatGPT, Claude & Cursor use your email, calendar, iMessage, Teams, files. Free.
No reviews yetgateway-ready552.0k/wkFreeAuthenticated email gateway for AI agents — per-agent inboxes, HITL approval, SPF/DKIM verified.
No reviews yetgateway-ready19130/wkFreeIMAP/SMTP email MCP server — 52 tools, stdio + HTTP, IMAP IDLE push, multi-account, AI triage.
No reviews yetlocal · npm1171.2k/wkFreeReal email and SMS for AI agents — send mail, receive verification codes, drive a real inbox.
No reviews yetlocal · npm229182/wkFreeAI-powered OSINT agent & MCP server. 16 tools: email, breach, IP, WHOIS, DNS, Shodan, GitHub & more.
No reviews yetlocal · pypi1.7kFreeIMAP/SMTP MCP server to search, read, organize, send, reply & forward email for AI assistants
No reviews yetlocal · npm96528/wkFreeAuthenticated email gateway for AI agents — per-agent inboxes, HITL approval, SPF/DKIM verified.
No reviews yetgateway-ready191FreeSearch ~300 airlines and book flights with a checkout link. OAuth sign-in by email code.
No reviews yetgateway-ready74Free
Unisender alternatives by what you need
Open source Unisender alternatives (19)
Published under an open licence such as MIT or Apache-2.0.
Sendraven, MisarMail MCP Server, Nitrosend, Atomic Mail, Outlook Assistant, ContrastAPI, Palmyr, Ecc and 11 more below.
Hosted Unisender alternatives (14)
Nothing to install: a remote endpoint you add by URL. Also callable through the mcp.market gateway.
Sendraven, MisarMail MCP Server, Atomic Mail, Tomba MCP Server, ContrastAPI, Palmyr, Lumail, emailmd and 6 more below.
Local Unisender alternatives (10)
A package you install and run on your own machine, so your data stays on your computer.
Nitrosend, Outlook Assistant, smbCloud Mail & Auth, Ecc, Blackwall, OpenOSINT, Email, Agenticmail and 2 more below.
Safest Unisender alternatives (14)
Graded A: passed every check the scanner runs on the latest release.
MisarMail MCP Server, Nitrosend, Atomic Mail, Outlook Assistant, Tomba MCP Server, smbCloud Mail & Auth, Lumail, emailmd and 6 more below.
Unisender and its alternatives compared
| Server | Grade | Rating | Licence | Runs | Stars |
|---|---|---|---|---|---|
| Unisender(this one) | C57 | No reviews yet | MIT | Local | 0 |
| Sendraven | B84 | No reviews yet | MIT | Hosted | 1 |
| MisarMail MCP Server | A90 | No reviews yet | MIT | Hosted | 1 |
| Nitrosend | A85 | No reviews yet | MIT | Local | 2 |
| Atomic Mail | A93 | No reviews yet | MIT | Hosted | 261 |
| Outlook Assistant | A85 | No reviews yet | MIT | Local | 37 |
| Tomba MCP Server | A99 | No reviews yet | NOASSERTION | Hosted | 8 |
| ContrastAPI | B73 | No reviews yet | MIT | Hosted | 34 |
| smbCloud Mail & Auth | A85 | No reviews yet | NOASSERTION | Local | 7 |
| Palmyr | B80 | No reviews yet | MIT | Hosted | 6 |
| Ecc | B83 | No reviews yet | MIT | Local | 3 |
| Lumail | A97 | No reviews yet | Not stated | Hosted | 2 |
| Blackwall | B78 | No reviews yet | MIT | Local | 0 |
| emailmd | A91 | No reviews yet | MIT | Hosted | 1.4k |
| OpenOSINT | C63 | No reviews yet | MIT | Local | 1.6k |
| Agent-Native Mail | A98 | No reviews yet | Not stated | Hosted | 4.9k |
| Email Inbox API + Sending by Sendmux | A96 | No reviews yet | MIT | Hosted | 65 |
| Local MCP | C68 | No reviews yet | NOASSERTION | Hosted | 55 |
| e2a — email for AI agents | A96 | No reviews yet | Apache-2.0 | Hosted | 191 |
| B74 | No reviews yet | LGPL-3.0 | Local | 117 | |
| Agenticmail | B82 | No reviews yet | MIT | Local | 229 |
| OpenOSINT | C58 | No reviews yet | MIT | Local | 1.7k |
| Imap | A92 | No reviews yet | MIT | Local | 96 |
| e2a — email for AI agents | A93 | No reviews yet | Apache-2.0 | Hosted | 191 |
| flightclaw | A98 | No reviews yet | MIT | Hosted | 74 |