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Claude Comes to 2007 Nokia Series 40 Phones Through Unofficial Java ME Client

Sep 28, 2026
GitHub
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Summary

Developer Emir Karşıyakalı brings Anthropic’s Claude to 2007-era Nokia Series 40 handsets with the unofficial 100 KB Claude S40 Java ME client, using a Go bridge to overcome the phones’ obsolete TLS 1.0 connection limits.

Key Points

  • Emir Karşıyakalı releases Claude S40, an unofficial Java ME client that brings Anthropic's Claude to Nokia Series 40 phones including the 2007 Nokia 6300.
  • A companion Go server bridges the phone's obsolete TLS 1.0, RSA-only connection to the modern Claude API using a private certificate authority installed on the handset.
  • The roughly 100 KB app supports web-backed news, weather and exchange-rate queries, Turkish and English interfaces, calendar and to-do entry creation, and saved or searchable chats.

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