Honcho

Honcho is memory infrastructure for building stateful agents that understand changing people, agents, groups, projects, and ideas over time. Store messages and events, let Honcho reason in the background, then query peer representations, session context, search results, or natural-language insights from any model or framework. Use it managed at api.honcho.dev, run a local stack with the honcho CLI, or self-host the server yourself. Maintained by Plastic Labs; the same provider that shipped in-tree.

Good to know before installing

Conversation turns, derived conclusions and peer/session ids are sent to the Honcho API (api.honcho.dev by default, or the self-hosted base_url you configure) under your HONCHO_API_KEY; every request also carries X-Honcho-Host (Hermes version and OS platform) and X-Honcho-Plugin (plugin version) headers that Honcho records for usage attribution.

From the plugin's catalog listing.

How to install

  1. Install it. Hermes asks for any API keys it needs (this one needs HONCHO_API_KEY), then asks whether to turn it on.
    hermes plugins install honcho
  2. Said no? Turn it on later:
    hermes plugins enable honcho
  3. Restart Hermes so it loads the plugin.

Some plugins also need a sign-in or settings: see Full setup & settings. Memory plugins ask whether to become your memory provider instead. Steps follow the official plugins guide (opens in a new tab).

Category
Memory & notes
Maintained by
plastic-labs (Community)
Needs
HONCHO_API_KEY API key
Version
1.0.0
In the catalog
2026-09-23, updated 2026-10-08
GitHub stars
7,783

Full setup & settings ↗Source code ↗

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