Fungi open-source packages and APIs

Open-source packages for Agents, interfaces, content tools and games.

These are the packages we use to build Fungi. Use them on their own to run Agents, build interfaces, work with content, or make games. The code is open source under the MIT license, so you can use it in your own projects, change it, and share it. Art Library also includes assets released under CC0.

Read What’s new for release highlights and fixes.

Install from npm

Check npm availability before installing a package. Its npm link shows which versions are published; the package docs explain setup and requirements.

When a published release is available, run npm install followed by the full package name. Packages without a published release are not available through npm yet.

Package versions in each Fungi release

Fungi’s release number is not a package version. Each package keeps its own number, so install the version listed for your Fungi release. For example, Fungi 0.29.0 ships Oyster 0.21.4. Install

@fungi.computer/oyster@0.21.4, using the Oyster package version rather than the Fungi release number.

Fungi	Spore (`@fungi.computer/spore`)	Oyster (`@fungi.computer/oyster`)	Computer (`@fungi.computer/computer`)	Shiitake (`@fungi.computer/shiitake`)
0.29.0	0.12.9	0.21.4	0.8.6	0.13.1
0.28.4	0.12.9	0.21.4	0.8.6	0.13.1
0.28.3	0.12.8	0.21.3	0.8.6	0.13.1
0.28.2	0.12.8	0.21.2	0.8.5	0.13.1
0.28.1	0.12.8	0.21.1	0.8.4	0.13.1
0.28.0	0.12.7	0.21.0	0.8.4	0.13.1
0.27.1	0.12.6	0.20.10	0.8.4	0.13.0
0.27.0	0.12.6	0.20.9	0.8.4	0.13.0
0.26.4	0.12.5	0.20.8	0.8.3	0.13.0
0.26.3	0.12.4	0.20.7	0.8.3	0.13.0
0.26.2	0.12.3	0.20.6	0.8.3	0.13.0
0.26.1	0.12.3	0.20.5	0.8.3	0.13.0
0.26.0	0.12.2	0.20.4	0.8.3	0.13.0
0.25.3	0.12.1	0.20.3	0.8.3	0.13.0
0.25.2	0.12.1	0.20.2	0.8.2	0.13.0
0.25.1	0.12.1	0.20.1	0.8.2	0.13.0
0.25.0	0.12.0	0.20.0	0.8.2	0.13.0
0.24.34	0.11.14	0.19.34	0.8.2	0.12.4
0.24.33	0.11.13	0.19.33	0.8.2	0.12.4
0.24.32	0.11.13	0.19.32	0.8.2	0.12.4
0.24.31	0.11.13	0.19.31	0.8.2	0.12.4
0.24.30	0.11.12	0.19.30	0.8.2	0.12.4
0.24.29	0.11.11	0.19.29	0.8.2	0.12.4
0.24.28	0.11.11	0.19.28	0.8.2	0.12.4
0.24.27	0.11.10	0.19.27	0.8.2	0.12.4
0.24.26	0.11.10	0.19.27	0.8.2	0.12.4
0.24.25	0.11.9	0.19.26	0.8.2	0.12.4
0.24.24	0.11.9	0.19.25	0.8.2	0.12.4
0.24.23	0.11.8	0.19.24	0.8.2	0.12.4
0.24.22	0.11.7	0.19.23	0.8.2	0.12.4
0.24.21	0.11.7	0.19.22	0.8.2	0.12.4
0.24.20	0.11.7	0.19.21	0.8.2	0.12.4
0.24.19	0.11.7	0.19.20	0.8.2	0.12.4
0.24.18	0.11.6	0.19.20	0.8.2	0.12.4
0.24.17	0.11.6	0.19.19	0.8.2	0.12.4
0.24.16	0.11.6	0.19.18	0.8.2	0.12.4
0.24.15	0.11.6	0.19.17	0.8.2	0.12.4
0.24.14	0.11.6	0.19.16	0.8.2	0.12.4
0.24.13	0.11.6	0.19.15	0.8.2	0.12.4
0.24.12	0.11.6	0.19.14	0.8.2	0.12.4
0.24.11	0.11.6	0.19.13	0.8.2	0.12.4
0.24.10	0.11.6	0.19.12	0.8.2	0.12.4
0.24.9	0.11.6	0.19.11	0.8.2	0.12.4
0.24.8	0.11.6	0.19.10	0.8.2	0.12.4
0.24.7	0.11.6	0.19.9	0.8.2	0.12.4
0.24.6	0.11.5	0.19.8	0.8.2	0.12.4
0.24.5	0.11.5	0.19.7	0.8.2	0.12.4
0.24.4	0.11.4	0.19.6	0.8.1	0.12.3
0.24.3	0.11.3	0.19.5	0.8.1	0.12.3
0.24.2	0.11.3	0.19.4	0.8.1	0.12.3
0.24.1	0.11.3	0.19.3	0.8.1	0.12.3
0.24.0	0.11.3	0.19.2	0.8.1	0.12.3
0.23.1	0.11.2	0.19.1	0.8.1	0.12.3
0.23.0	0.11.2	0.19.0	0.8.1	0.12.3
0.22.2	0.11.2	0.18.3	0.8.1	0.12.3
0.22.1	0.11.2	0.18.2	0.8.1	0.12.3
0.22.0	0.11.1	0.18.1	0.8.1	0.12.3
0.21.0	0.11.1	0.18.1	0.8.1	0.12.3
0.20.0	0.11.0	0.18.0	0.8.1	0.12.3
0.19.0	0.11.0	0.17.0	0.8.1	0.12.3
0.18.0	0.10.2	0.16.0	0.8.0	0.12.3
0.17.0	0.10.1	0.15.0	0.7.0	0.12.2
0.16.0	0.10.0	0.14.1	0.6.3	0.12.1
0.15.0	0.9.0	0.14.0	0.6.2	0.12.0
0.14.1	0.8.3	0.13.1	0.6.1	0.11.1
0.14.0	0.8.2	0.13.0	0.6.1	0.11.0
0.13.1	0.8.2	0.12.1	0.6.1	0.11.0
0.13.0	0.8.2	0.12.0	0.6.1	0.11.0
0.12.0	0.8.1	0.11.0	0.6.0	0.10.0
0.11.0	0.8.0	0.10.0	0.6.0	0.9.2
0.10.0	0.7.1	0.9.0	0.5.0	0.9.1
0.9.0	0.7.0	0.8.2	0.4.2	0.9.0
0.8.1	0.6.2	0.8.1	0.4.1	0.8.0
0.8.0	0.6.1	0.8.0	0.4.1	0.8.0
0.7.0	0.6.0	0.7.0	0.4.0	0.7.0

To upgrade a self-hosted Oyster, follow Upgrade Oyster.

Maintained upstream forks

These packages carry narrow fixes to upstream libraries. See Fungi’s npm forks for exact source revisions, symptoms, runtime limits, licenses and drop conditions.

@fungi.computer/capnweb: tuple declaration types and idle stream cancellation.
@fungi.computer/cloudflare-computer: final worker-shell state for host-managed continuity; still preview-only.
@fungi.computer/cloudflare-worker-bundler: an independent asset-serving entry without the bundler graph.
@fungi.computer/ts-webp: NodeNext-resolvable declarations.

Run and build Apps

@fungi.computer/oyster
Published · 0.21.4
Put a desktop of Fungi Apps on your own Cloudflare account.
@fungi.computer/agar
Published · 0.10.0
Build App backends and connect their interfaces to a Fungi host.

Agent runtimes and capabilities

@fungi.computer/cairn
Published · 0.1.0
Create and check IDs for Agents and their work. An ID names something; it does not grant access.
@fungi.computer/forage
Published · 0.3.5
Find tools and read what they do before running them.
@fungi.computer/mule
Published · 0.2.3
Run an AI model with tools, using Effect.
@fungi.computer/mycelium
Published · 0.3.8
Run tools within a chosen scope and clean up when they finish.
@fungi.computer/shiitake
Published · 0.13.1
Keep Agent conversations and queued work across restarts.
@fungi.computer/watchdog
Published · 0.1.3
Queue work, schedule retries, and record when it finishes.

Messaging and host integrations

@fungi.computer/graft
Published · 0.2.13
Connect an editor to an authorized Shiitake Session through ACP.
@fungi.computer/bird-dog
Published · 0.3.6
Send messages between Agents, with Watchdog keeping track of the work.
@fungi.computer/carrier
Published · 0.2.4
Submit email and record provider evidence. See Send email durably from a Cloudflare Durable Object.
@fungi.computer/lantern
Published · 0.4.2
Shared Fungi terminal wordmarks, prompts, and progress. It is not the full terminal application.
@fungi.computer/corral
Published · 0.1.19
Add optional Herdr activity reporting to a Shiitake client.
@fungi.computer/ear-tag
Published · 0.1.0
Create and hash access keys. Your app stores them and decides when they expire. See Issue API keys and invite codes.
@fungi.computer/whistle
Published · 0.3.0
Define commands, their inputs, and how they run.

Interface and content building

@fungi.computer/parakeet
Published · 0.11.19
Show Agent conversations, messages and status in your app. See Add an AI agent chat UI to React.
@fungi.computer/caps
Published · 0.11.1
Build interfaces with reusable React components.
@fungi.computer/sprite
Published · 0.2.2
Display Fungi Agent characters in your interface.
@fungi.computer/sprite-zdog
Published · 0.3.2
Add the optional Zdog avatar renderer.
@fungi.computer/stipe
Published · 0.1.1
Use Fungi colors, spacing, and themes on the web and in terminals.
@fungi.computer/technonomicon
Not yet published
Validate content and process the Spore Print’s Astro and Markdown conventions.

App releases, media, and games

@fungi.computer/puffball
Published · 0.5.5
Check packaged Apps and describe how their files are served.
@fungi.computer/darkroom
Published · 0.5.9
Connect Apps to media-generation models and providers.
@fungi.computer/vishnu
Not yet published
Create, check, test, and build Vishnu cartridge games. Its manifest requires Node.js 24 or newer.
@fungi.computer/vishnu-embed
Not yet published
Embed a small live Vishnu scene as a lazy, accessible web component.
@fungi.computer/vishnu-pixel
Not yet published
Render low-resolution scenes with Three.js and pixel-art outlines.

Additional package docs

Source and API references

Each linked package has its README, guides and API reference under its own prefix on this site. Start there for examples, supported runtimes and the package’s public exports.