# Workers - Python and JavaScript Workers can now call each other via RPC

Publisher-attributed story with a reviewed brief or permitted publisher paragraph. The original publisher is responsible for the linked reporting.

- Publisher: Cloudflare Developers
- Category: Cloud
- Original publication time: 2026-08-03T00:00:00Z
- First observed by NexusTechWire: 2026-10-01T15:54:33Z
- Original source: https://developers.cloudflare.com/changelog/post/2026-08-03-python-javascript-rpc/
- NexusTechWire record: https://nexustechwire.com/news/news-79b5ccc81add4428d415

## From the publisher

You can now call methods between Python and JavaScript Workers using Workers RPC. This works through Service bindings without extra dependencies, schema definitions, or serialization code. Cross-language RPC calls behave like ordinary function calls. Exceptions propagate to the call site. You can pass structured cloneable types ↗︎ as parameters or return values, and Pyodide Foreign Function Interface (FFI) automatically converts types between languages.

Source license: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/). Publisher excerpt shortened and converted to plain text. Original source license applies.

Read the full original: [Cloudflare Developers](https://developers.cloudflare.com/changelog/post/2026-08-03-python-javascript-rpc/)

This record does not reproduce the complete article or represent independent confirmation of every source claim.