Send Claude Code tasks to the Batch API at 50% off
Hey HN. I built this because my Anthropic API bills were getting out of hand (spoiler: they remain high even with this, batch is not a magic bullet). I use Claude Code daily for software design and infra work (terraform, code reviews, docs). Many Terminal tabs, many questions. I realised some questions are ok to wait on and with that comes some cost savings. So here is a small MCP that lets you send work directly to Anthropic's Batch API from inside Claude Code, for the same quality responses just 50% cheaper, results come back in ~30min-1hr. How it works: you type /batch review this…
In plain words
This is an MCP (Model Context Protocol) server that integrates Anthropic's Batch API directly into Claude Code, enabling users to send non-urgent tasks like code reviews, security audits, and documentation work at 50% reduced cost compared to regular API calls. Results return within 30 minutes to an hour. Built for developers who use Claude Code frequently for software design and infrastructure work but can defer some requests, it reduces API expenses by leveraging Anthropic's cheaper batch processing option. The tool notifies users when batch results are ready and simplifies the process of submitting work through a simple slash command interface.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hey HN. I built this because my Anthropic API bills were getting out of hand (spoiler: they remain high even with this, batch is not a magic bullet). I use Claude Code daily for software design and infra work (terraform, code reviews, docs). Many Terminal tabs, many questions. I realised some questions are ok to wait on and with that comes some cost savings. So here is a small MCP that lets you send work directly to Anthropic's Batch API from inside Claude Code, for the same quality responses just 50% cheaper, results come back in ~30min-1hr. How it works: you type /batch review this codebase for security issues, Claude gathers all the context, builds a self-contained prompt, ships it to the Batch API via an MCP server, and you get notified in the status bar when it's done (optional). The README has installation instructions, which were mainly generated by claude. I removed the curl | bash setup and at this stage of the project i feel more confident sharing the manual setup instructions. My main hope with this project is to monetize it. Not by asking for money, rather I am hoping others have ideas or improvements to add and use those to save more on cost.
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