@grammeaway/pi-provider-sakana-fugu

Sakana Fugu provider extension for the Pi agentic harness (OpenAI-compatible, /login support)

Packages

Package details

extension

Install @grammeaway/pi-provider-sakana-fugu from npm and Pi will load the resources declared by the package manifest.

npm repo home report

$ pi install npm:@grammeaway/pi-provider-sakana-fugu

Package: @grammeaway/pi-provider-sakana-fugu
Version: 1.0.2
Published: Jun 23, 2026
Downloads: 506/mo · 15/wk
Author: grammeaway
License: MIT
Types: extension
Size: 5.7 KB
Dependencies: 0 dependencies · 2 peers

Pi manifest JSON

{
  "extensions": [
    "./index.ts"
  ]
}

Security note

Pi packages can execute code and influence agent behavior. Review the source before installing third-party packages.

README

pi-provider-sakana-fugu

Disclaimer: Extension written fully by Pi itself.

Adds Sakana Fugu (fugu, fugu-ultra) to the pi coding agent.

Fugu exposes an OpenAI-compatible API, so this points pi's built-in openai-responses streamer at https://api.sakana.ai/v1 (the Responses API is Sakana's recommended path for tooling/agents; Chat Completions also works).

Install

pi install npm:@grammeaway/pi-provider-sakana-fugu

To try it without permanently installing:

pi -e npm:@grammeaway/pi-provider-sakana-fugu

Login

Run /login, choose Use an API key, then Sakana Fugu, and paste the key from console.sakana.ai. Fugu has no OAuth flow — the same API key covers both the subscription and pay-as-you-go plans. The key is stored in ~/.pi/agent/auth.json. Alternatively set SAKANA_API_KEY in your environment.

Notes

Reasoning effort: Fugu only accepts high and xhigh (max); any other value is rejected by the API. Lower levels are hidden, so set the model to high or xhigh — medium/low are not available.
Context window: 1M tokens. Pricing has a higher tier above 272K tokens.
Costs reflect the published fugu-ultra-20260615 rates; plain fugu uses a blended, unpublished rate, so the same numbers are used as an upper bound.
Long turns: complex fugu-ultra requests can run for minutes. If you see dropped streams on long turns, that's a client idle-timeout, not an extension bug (Sakana's own Codex config raises the stream idle timeout to 2h).
EU/EEA access is currently unavailable per Sakana's terms.