Agent Mailbox MCP is an MCP server published by lleontor705 in the Agents category: mCP Server for inter-agent messaging — SQS-style mailbox for multi-agent AI systems.
Six months or more without a commit doesn't mean the server is broken, but check the open issues before depending on it in production.
This server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
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Releases
v1.5.1v1.5.1 · 12 Apr 2026What's Changed feat: add msg_get, msg_delete, msg_count, msg_update_status tools by @lleontor705 in https://github.com/lleontor705/agent-mailbox-mcp/pull/2 [ats-std] feat(npm): add types and exports fields by @lleontor705 in…
v1.5.0v1.5.0 · 2 Apr 2026What's Changed feat: A2A protocol support, HTTP transport, and competitive features by @lleontor705 in https://github.com/lleontor705/agent-mailbox-mcp/pull/4 Full Changelog:…
v1.1.0v1.1.0 · 31 Mar 2026What's Changed feat: security hardening and SQLite optimizations by @lleontor705 in https://github.com/lleontor705/agent-mailbox-mcp/pull/3 Full Changelog: https://github.com/lleontor705/agent-mailbox-mcp/commits/v1.1.0
No package has been published for this server, so install it from source: clone the repository and follow its README.
Is Agent Mailbox MCP safe to use with an AI agent?
Its trust score is 34 out of 100 (low). Conduid hasn't run static security checks on this repository yet, so review the source yourself before granting it credentials. It has no ConduID identity yet, so agent calls to it are not receipted.
Is Agent Mailbox MCP still maintained?
The last commit was 6 months ago. That's long enough that you should check whether the maintainer is responding to issues before depending on it.