Delta MCP is a free app that sits between your AI apps and their MCP servers: one program per task instead of one tool call per step, up to 24.1× fewer tokens in our benchmarks. Every change is record
The free app that makes your AI’s MCP tools faster, cheaper and undoable.
Website · How it works · Benchmarks · Docs · Download: coming soon
Delta MCP is a free app that sits between your AI apps and their MCP servers. Your AI does each task as one program instead of one tool call per step. Delta MCP checks it before the first call, makes the fewest calls, all or nothing, reads the result back, records it and can undo it. It works with the MCP servers you already use.
Coming soon. Delta MCP is almost here, for macOS, Windows and Linux: free, no account. Follow the launch and you’ll know the moment it’s out, with no email address: RSS, or Watch → Custom → Releases on this repository.
Your AI becomes a developer, not an executor. Instead of reading, deciding, calling one tool, waiting and reading again, it writes the whole task once.
1. One program per task, not one call per step. Your AI writes the task as one short program. Your MCP servers stay exactly as they are, and every original tool stays callable by name. 2. Checked, applied all or nothing, read back. Delta MCP checks the program before the first call, makes the fewest calls, applies them all or nothing, then reads the result back. 3. Recorded in Activity, and undoable. Every task lands in Activity with each change before and after. Undo it in one click. When something can’t be undone, like a message already sent, Delta MCP tells you.
From the project README.
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