Infrastructure Tools

4 infrastructure developer tools for Claude Code and AI agents, ranked by real installs from npm, PyPI and skills.sh. LiteLLM leads with 660M installs a month.

#Type

1LiteLLMCall 100+ LLM APIs through one OpenAI-compatible interfaceToolstoday660M54k
2tiktokenFast BPE tokenizer, count before you spendTools8 weeks ago213M19k
3OutlinesGuaranteed-valid generation: regex, JSON schema, grammarsToolstoday—15k
4InstructorStructured outputs for LLMs, typed, validated, retriedToolslast week—14k