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Introducing CLI generation: the agent interface your API is missing

Blog post from Speakeasy

Post Details
Company
Date Published
Author
Nolan Sullivan
Word Count
1,101
Company Posts That Month
8
Language
English
Hacker News Points
-
Post removed?
No
Summary

CLI generation is introduced as a beta feature by Speakeasy, offering a comprehensive solution for transforming APIs into fully functional command-line interfaces (CLIs) written in Go, which include interactive text user interfaces (TUIs) for humans and machine-readable output modes for AI agents. This innovation addresses the gap in API management, where many teams provide documentation and SDKs but often omit CLIs, a crucial interface for AI agents. The generated CLIs are designed to excel in local development environments where agents like Claude Code and Codex operate, utilizing features such as progressive disclosure, LLM familiarity, and composability, which allow agents to efficiently explore and execute commands. These CLIs automatically adapt to agent environments, providing structured, machine-readable outputs and disabling interactivity for seamless integration, while also offering multiple discovery mechanisms for ease of agent interaction. The generation process is streamlined, requiring only a package name, CLI name, and environment variable prefix, and the resulting CLIs are capable of handling authentication, pagination, retries, and error handling, ensuring they are robust and production-ready from the start. Speakeasy's approach allows for the simultaneous generation of both CLIs and MCP servers from a single source of truth, catering to different audiences and enhancing the flexibility and adaptability of API interactions.

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