> Delta MCP is a free app between your AI apps and their MCP servers. One program per task, not one tool call per step: 3.3–24.1× fewer tokens, measured. [Free app for Claude, Cursor, VS Code and any MCP server](https://www.mcpdelta.com/docs/quickstart) # Your AI becomes a developer. Your quota lasts longer. Delta MCP is a free app that sits between your AI and its MCP servers: one program per task instead of one tool call per step. [Download for Mac](https://www.mcpdelta.com/download) Also for [Windows](https://www.mcpdelta.com/download#windows) [Linux](https://www.mcpdelta.com/download#linux) - Free, no account - All your MCP servers in one place - [3.3–24.1× fewer tokens, measured](https://www.mcpdelta.com/benchmarks)  Works with 12 AI apps, including - Claude Desktop - Claude Code - Cursor - VS Code - Windsurf - Gemini CLI - Cline - LM Studio - and 4 more The difference ## Same result, a fraction of the work Your AI stops calling tools one at a time. One real task, measured: fixing a release on a server with 152 tools. Direct MCP calls 26 model calls, one tool at a time Through Delta MCP 6.5 model calls, for the same result **13.4×** fewer tokens **6.1×** lower cost, counted against us **Same** result, checked in the service Fixing a release on Cerberus, a test platform with 152 tools. Claude Code with Sonnet 5.5, averages of 2 to 3 runs; Delta MCP measured 5 Oct 2026, direct calls 2 Oct. A single one-step question costs more through Delta MCP. [All benchmarks](https://www.mcpdelta.com/benchmarks) How it works ## Ask as usual. It happens in one go. Your MCP servers stay as they are. Your AI uses them like code: one program per task, not one call per step. 1 ### Ask your AI, as usual In Claude, Cursor or any AI app you already use. Nothing new to learn. ``` for (const t of await tickets.ticket .all({ status: "open" })) { const w = await tickets.ticket .get(t.id); w.labels.push("triaged"); w.comments.push({ body: "Seen" }); } ``` 2 ### It writes one program Delta MCP checks it before the first call, then makes the fewest calls, all or nothing. 3 ### You see it, and can undo it Every task lands in Activity with each change, read back. Undo it in one click. [How it works, in detail](https://www.mcpdelta.com/how-it-works) Safe by design ## Let it work. Stay in control. Every task is checked first, applied all or nothing, read back, and kept in Activity. ### See and undo every task One sentence per task, every change before and after. When something can’t be undone, like a message already sent, Delta MCP tells you. ### Money that leaves asks you first Paying, buying, refunding and transferring show you a card. On by default, and your AI can never turn it off. ### Stays on your computer No account. Your tools, tasks and history never leave it; nothing about you is sent without a switch you control. Your history On this computer ### Every tool kept Your servers stay as they are, and every original tool stays callable by name. 152/152 ### Shortcuts for 0 tokens A task that worked becomes a shortcut. Any AI runs it in one line; Delta MCP runs it again without AI. Weekly status page 0 tokens Why Delta MCP ## Make your AI a developer, not an executor. 1. ### Today, your AI is the executor. Read, decide, call one tool, wait, read again. One step at a time, each one a full round trip to the model. 2. ### That’s why MCP costs so many tokens. Every tool definition is loaded before the first word, and every result goes back through the model. One setup of 58 tools on 5 servers starts at 55,000 tokens (Anthropic, Nov 2025). 3. ### With Delta MCP, your AI is the developer. It writes the whole task as one program. Delta MCP checks it, makes the fewest calls, applies them all or nothing, and keeps it in Activity, ready to undo. [See the measurements](https://www.mcpdelta.com/benchmarks) Getting started ## Set up in two minutes No account, nothing to configure by hand, and nothing you can’t take back. 1. 1 ### Download and open Delta MCP Free, for Mac, Windows and Linux. 2. 2 ### It finds the tools your AI uses Its MCP servers, in Claude Desktop, Claude Code, Cursor, VS Code and 8 more apps, checked live. 3. 3 ### Click Optimize Your AI uses them through Delta MCP from then on. Put everything back whenever you like.  Pricing ## Free. Really. Every feature, no account, no limit on servers. Nothing to unlock, ever. Delta MCP Free $0 Everything, for good [Download for Mac](https://www.mcpdelta.com/download) Also for Windows and Linux - Every connector, as many as you like - Each task in one go, all or nothing - Activity, Undo and Do again - Shortcuts, run again without AI - Payments that ask you first - No account, nothing about you sent without your yes Like it? [Support Delta MCP from $5 a month](https://www.mcpdelta.com/pricing) ## Questions about Delta MCP ### What is Delta MCP? 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. ### Is Delta MCP really free? Yes. Every feature is in the free app, with no account and no limit on servers. Supporters can help from $5 a month and get beta versions and a supporters’ Discord; everyone gets the same app. ### Do I need to know how to code to use Delta MCP? No. You ask your AI as usual; it writes the program, and Activity shows each change in plain words, with Undo. ### Does Delta MCP save tokens? Yes, on tasks with several steps: 3.3 to 24.1 times fewer tokens in our measurements. A single one-step question costs more (about 1.25 times the tokens), because your AI reads Delta MCP’s short description on every call. ### Do I need to change my MCP servers? No. Delta MCP uses them exactly as they are. Every original tool stays callable by name: 152 of 152 on the largest server we tried. ### Does Delta MCP send my data anywhere? No. Delta MCP runs on your computer and talks to your servers directly; your tools, tasks and history never leave it. Besides a check for new versions, which sends nothing about you, the only thing that can be sent is one anonymous number a day, your tokens saved: you choose at first launch, and it’s off in Settings in one click. ### Is Delta MCP open source? No. Delta MCP is a free app, and its source code is not public. How it works is written out in the docs, how it is measured is on the benchmarks page, and everything it does on your computer is recorded in Activity. ### How do I stop using Delta MCP? Settings, then Put everything back. Each connector returns to your AI apps exactly as it was; Delta MCP keeps a copy of every file it changed. ### Which AI apps does Delta MCP work with? Delta MCP works with 12 AI apps: Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Gemini CLI, Cline, Roo Code, LM Studio, Amazon Q, Codex and Zed. It switches the first ten over for you; Codex and Zed are set up by hand for now. ### Do I still need Delta MCP if my AI app has Tool Search? Yes, on tasks with several steps. Tool Search keeps the list of tools short, but every step is still a separate request to the model. Delta MCP removes those requests: your AI writes the task as one program. Our measurements were taken with Tool Search on, so the savings come on top of it. ### Is Delta MCP an MCP gateway or proxy? It is closer to a local proxy than to an enterprise gateway. Like a proxy, it puts your MCP servers behind one entry in your AI apps. Unlike a gateway, it is a free app on your own computer, with no service to run. Its main job is different: your AI writes each task as one program, so it makes far fewer calls. ## Keep reading - [How to reduce MCP token usage, and why MCP burns tokens](https://www.mcpdelta.com/guides/reduce-mcp-token-usage) How to reduce MCP token usage: measure it with /context, see the two costs (tool menu and round trips), and compare every fix, Tool Search included. - [MCP config file locations: Claude, Cursor, VS Code and more](https://www.mcpdelta.com/guides/mcp-clients) Where Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Gemini CLI and Codex keep their MCP config: file path, JSON key, remote servers and tool limits.  ## Try Delta MCP on your own tasks Free, two minutes to set up, and you can put everything back in one click. [Download for Mac](https://www.mcpdelta.com/download) Also for [Windows](https://www.mcpdelta.com/download#windows) [Linux](https://www.mcpdelta.com/download#linux) Free · No account · Apple chip or Intel