mit-parley-pi-extension0.6.2
Pi custom provider extension for MIT Parley API
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Readme
MIT Parley Pi Extension
Use MIT Parley models in the Pi coding agent, with automatic model discovery, thinking settings, key switching, and a footer showing context usage and estimated cost.
For accounts, API keys, model capabilities, and billing, look at the Parley docs.
Install
With Pi installed:
pi install npm:mit-parley-pi-extension
export PARLEY_API_KEY="your-parley-api-key"
pi
Use /model to choose an MIT-parley model and Shift+Tab to change the thinking level. Update the extension with pi update.
Commands
| Command | Purpose |
|---|---|
/parley-models |
Show model catalog status and metadata sources |
/parley-models refresh |
Refresh models, prices, and token limits |
/parley-key |
Choose a configured key; /parley-key personal switches directly |
/parley-footer |
Toggle the extension's footer |
Model discovery
The extension discovers supported chat models at startup, on /reload, and when switching keys. It checks documented prices and token limits daily. Network requests have a four-second deadline; failures fall back to cached or bundled data.
Models with inferred details are labeled (estimated metadata). Unsupported model families are skipped. Footer costs are estimates, not invoices.
Multiple keys
Give each key a nickname through its environment variable:
export PARLEY_PERSONAL_API_KEY="your-personal-key"
export PARLEY_COURSE_API_KEY="your-course-key"
Switch with /parley-key personal or /parley-key course. The selection is saved with the session and inherited by child processes. Switching keys resets the footer's cost counter.
Options
| Environment variable | Effect |
|---|---|
PARLEY_KEY_PROFILE=personal |
Choose the startup key |
PARLEY_BASE_URL |
Use an alternative endpoint or credential proxy |
PARLEY_MODEL_DISCOVERY=0 |
Use the bundled catalog without discovery requests |
PARLEY_DOCS_REFRESH=0 |
Discover models but use bundled prices and limits |
Development
npm install
npm run validate # builds dist/ and runs tests and structural checks
pi --no-extensions -e ./dist/index.js
The last command loads only this extension for testing, avoiding a second npm-installed copy. Commit rebuilt dist/ files with source changes.
Before publishing, bump the version in package.json, run npm run validate, and commit the release. Publish with npm publish --access public.