Cline
Open-source coding agent in VS Code that you point at your own API key.
What it is
The pragmatic choice if you want agentic editing without a subscription: install the extension, supply an API key from whichever provider you already pay, and every step is shown for approval before it runs. Costs follow your token usage, which is cheaper for light use and more predictable for teams that already have an API contract.
Pricing updated 2026-11-11 Official pricing
Cline pricing explained
There is no price sheet because there is no subscription: the extension is free and the cost is whatever your provider charges for the tokens the agent consumes. That makes the economics genuinely different from the others on this list — a light user spends a few dollars a month, and a heavy agent session on a large repo can cost more in one afternoon than a month of a $10 plan. The practical advice is to set a provider-side spend limit before the first long task, because the agent will happily keep reading files. Confirm current provider rates separately; this page does not quote them.
Free-tier limits are taken from the official pricing page on the update date above. They change often — confirm before you commit to an annual plan.
Cline key features
Agentic multi-file editing in VS Code
Reads files, writes files and runs commands as one task rather than one suggestion at a time, with the whole sequence visible.
Bring your own API key
Point it at Anthropic, OpenAI, Google or a local server. There is no subscription and no vendor markup — you pay the provider you already use.
Every tool call shown for approval
File writes and terminal commands pause for confirmation by default. Autonomy is available, but it is a setting you turn on knowingly.
Model Context Protocol support
Connects to MCP servers for databases, browsers and internal tools, so the agent can reach beyond the editor when a task needs it.
Checkpoint and rollback per task
Each task leaves a checkpoint you can return to, which is the practical answer to "the agent went down a wrong path for ten minutes".
Open source and self-auditable
The extension code is readable, which matters when the thing has filesystem and terminal access on your machine.
Cline: how it works
The extension is a harness, not a model
Cline supplies the loop — plan, read, edit, run, observe — and delegates inference to whichever provider you configure. That separation is why swapping models costs nothing and why quality tracks the model you pick.
Approval as the safety boundary
Instead of sandboxing, it interrupts before risky actions. That keeps the workflow fast on a local machine, but it also means the safety property depends on you reading the prompts.
Context assembled per step
Files are read on demand and the transcript carries what was seen. On a large repo this is efficient, but long tasks accumulate context and token spend grows with the length of the task, not with the size of the codebase.
Cline core strengths
No subscription — cost is exactly your token spend
For light use this is the cheapest option on the list by a wide margin. For heavy use it is the most variable, which is the same property seen from the other side.
The approval step makes autonomy auditable
Every write and command is a decision point. Useful when you want agentic editing but are not ready to hand over the terminal.
Local models are a first-class option
Point it at a local server and the code never leaves the machine. That is a real requirement in some organisations, not a preference.
Checkpoints make experiments reversible
Trying a risky refactor costs one rollback rather than a git recovery exercise; you can explore a direction knowing the return trip is one click.
Cline compared with alternatives
| Tool | Cline | Cursor | Aider |
|---|---|---|---|
| Best for | Developers who want agentic editing with their own API key and no subscription | Individual developers who want the most mature agent-driven editor | Terminal users who want every change committed to git automatically |
| Pricing shape | Extension is free; you pay the model provider directly per token | Usage pools from $8 to $200 per month, third-party models billed separately | Open source; you pay for model tokens only |
| Deployment and data | Runs locally in VS Code; can point at local models | SaaS with local codebase indexing; no self-hosting | Runs anywhere a shell runs, including over SSH; supports local models |
Written from the official product pages listed under Sources, not copied from another directory. Prices and limits reflect the update date above; features ship faster than reviews, so treat the list as a starting point and confirm on the official site.
Pros and cons
Strengths
- No subscription — cost is exactly your token spend
- Approval step makes autonomous edits auditable
- Works with local models, so code never leaves the machine
Limitations
- You manage keys, providers and rate limits yourself
- Rougher edges than commercial IDEs
- Token costs can spike on large repos without a cap
Cline use cases
Agentic refactor with review
Let it plan and edit across files, approving each write, then roll back if the direction is wrong.
Air-gapped or local-only work
Point it at a local model server when the code cannot leave the machine, and keep the approval prompts on so every file write stays visible.
Reaching outside the editor
With MCP servers attached, the agent can query a database or drive a browser to verify a fix.
Scripted experiments
Because it is open source and key-based, it is easy to try a new model the week it ships without waiting for a vendor integration.
