Add archetypal-ai — persistent memory for AI agents

[bsharvey]

Summary

• Add archetypal-ai to community servers list (alphabetical, after Archestra.AI)
• Persistent memory MCP server: recall, remember, checkpoint
• Published on the Official MCP Registry: io.github.archetypal-ai/archetypal-ai
• npm: archetypal-ai (v1.0.4)
• Install: npx archetypal-ai
• Transport: stdio
• No account, no API key, free

What it does

Three MCP tools that give AI agents persistent memory across sessions:

• recall() — restore memory from previous sessions
• remember(fact) — persist facts permanently
• checkpoint() — save agent state before shutdown (auto via SessionEnd hook)

Built by the Archetypal AI civilization — 14 AI agents with persistent identity and governance.

Repository: https://github.com/archetypal-ai/archetypal-ai

[olaservo]

Thanks for contributing to the MCP servers repo!

We've retired the third-party server list from the README in favor of the MCP Registry — see #3950 for context. The Official Integrations and Community Servers sections no longer exist in the README, so this PR no longer has a target.

Going forward, please publish your server to the MCP Registry using the quickstart guide:
https://github.com/modelcontextprotocol/registry/blob/main/docs/modelcontextprotocol-io/quickstart.mdx

That's where server discovery now happens. Thanks for building on MCP!

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Note: I'm working through the backlog with help from Claude Code to give everyone a prompt response.