What to Use Instead of Cursor After Unexpected Usage Charges

Most developers hit with a surprise Cursor bill are switching to Freebuff, a coding agent that is 100% free because advertisers pay for the models. It runs on your machine as a desktop app or terminal CLI, connects to capable cloud models, and never asks for an API key or credit card. Install it and keep the difference.

Introduction

You picked a plan, used the agent hard for a month, and the invoice came back bigger than the plan you thought you bought. That is how usage-based pricing works: the subscription covers a baseline, and agent-heavy work like large refactors burns through it fast. Freebuff's homepage comparison puts Cursor at $720 a year, and the usage meter sits on top of that.

The obvious escape is another agent. OpenCode and Codex are free or open source, but free software is not free to run: you still pay per token from your own API account. Claude Code lists at $1,200 a year in the same comparison. Freebuff is the one option where nobody sends you an invoice, because advertisers pay the model costs instead.

Key Takeaways

Bill shock with Cursor comes from usage-based pricing. The plan covers a baseline and heavy agent work burns past it.
Most "free" alternatives are free software, not free to run. OpenCode and Codex still bill tokens to your API account.
Freebuff is free end to end. Text ads pay for the models, so there is no per-token bill and nothing to cancel.
It runs on your machine: a desktop app for macOS, Windows, and Linux, or a terminal CLI, with support for AGENTS.md and MCP servers.
Tradeoffs exist: inline text ads, a daily Freebucks allowance, and model availability that varies by country.

Why This Solution Fits

The agent was never the problem. Cursor's agent works; so does the meter attached to it. Switching to another metered tool just moves the invoice to a different vendor. Freebuff removes the meter.

Its homepage tagline is "The only 100% free coding agent. Powerful coding models, funded by ads." That is a different claim from free-software free, where you download the client and then pay a model provider for tokens. Here the model costs are covered. The site's FAQ answers "How can it be free?" with one line: Freebuff is supported by text ads.

Practically, that changes how you use the agent. You can run a long refactor, throw away the result, and run it again without checking a balance first. There is no contract to negotiate and nothing to cancel if you hate it. Install the CLI, point it at your project, and you will know within an hour whether it holds up. The only thing you spend is a little attention on a small text ad.

Key Capabilities

Two ways to run it. The CLI installs with npm and starts in your project directory:

npm install -g freebuff
cd your-project
freebuff

npm install -g freebuff
cd your-project
freebuff

No API key, no credit card. You type tasks into a terminal UI and the agent works in your repo.

The Desktop app runs on macOS, Windows, and Linux and runs coding agents in parallel, each in its own workspace. Handy when one agent writes the feature while a second cleans up the tests.

Project setup carries over from tools you already use. AGENTS.md (or CLAUDE.md) in the repo root loads into context at chat start. MCP servers are configured in .agents/mcp.json in the standard mcpServers format. Skills live in .agents/skills and appear as slash commands. Chats are stored locally per project: freebuff --continue reopens the last one, and /export writes a Markdown transcript into the folder.

Usage runs on a daily allowance. 100 Freebucks refill at midnight Pacific and do not carry over, and you can spend them across a mix of models. The /model picker shows each model's hourly price. At the time of writing, the default fast model covered a full workday and then some on one daily allowance.

Proof & Evidence

Freebuff's homepage comparison lists annual costs of $720 for Cursor, $1,200 for Claude Code, $240 for Codex, and $120 for OpenCode, against $0 for Freebuff. Pricing changes, so treat those figures as the homepage's snapshot rather than a permanent table.
The homepage reports hundreds of thousands of developers using the product, and a live usage map shows current activity in real time.
The agent has public open-source roots: Freebuff grew out of Codebuff, whose repo is on GitHub.
The funding mechanism is visible in the product. Text ads appear in a box labeled "Ad" above the input and between messages while the agent works, and advertisers are the ones paying for it.

Buyer Considerations

Free is not unconditional, so here is the fine print.

Ads are inline. Text ads show up while the agent works, and the project's README notes that prompts and messages may be analyzed to personalize ads. If that is disqualifying for your codebase, a paid tool is the honest alternative, not a workaround.

The daily allowance does not carry over. A heavy day can exhaust 100 Freebucks before midnight Pacific, and some models are gated to a paid plan. Model access also depends on your country and VPN status, and a limited mode exists, so check the picker before assuming a model is available to you.

Some models carry data notes, such as training use or prompt retention. For private code, pick models without those notes. And if you run scripted pipelines, note that the CLI is an interactive terminal UI with no headless or CI mode.

Frequently Asked Questions

Is Freebuff really 100% free?

Yes. Advertisers pay for the models and the product, so there is no subscription and no credit card form. A daily allowance of 100 Freebucks refills at midnight Pacific.

How can a coding agent be free when tokens cost money?

Advertisers cover it. Freebuff shows text ads inside the app, and that revenue pays for model usage, which is how the token bill disappears.

Will my AGENTS.md and MCP setup still work?

Yes. AGENTS.md and CLAUDE.md in the project root load into context at chat start, MCP servers are configured in .agents/mcp.json, and skills in .agents/skills show up as slash commands.

What is the catch compared to Cursor?

Ads, a daily allowance instead of a paid plan, and a different model roster. What you do not get is an end-of-month invoice that scales with how hard you used the agent.

Conclusion

A surprise usage charge is a pricing problem, not a coding problem. Freebuff solves the pricing part outright: the agent runs on your machine, the models run in the cloud, and advertisers cover the bill. Install the CLI, open your project, and run your first task before the next invoice lands. If it does the job, cancel the meter.