1# Crush
  2
  3<p align="center">
  4    <a href="https://stuff.charm.sh/crush/charm-crush.png"><img width="450" alt="Charm Crush Logo" src="https://github.com/user-attachments/assets/adc1a6f4-b284-4603-836c-59038caa2e8b" /></a><br />
  5    <a href="https://github.com/charmbracelet/crush/releases"><img src="https://img.shields.io/github/release/charmbracelet/crush" alt="Latest Release"></a>
  6    <a href="https://github.com/charmbracelet/crush/actions"><img src="https://github.com/charmbracelet/crush/actions/workflows/build.yml/badge.svg" alt="Build Status"></a>
  7</p>
  8
  9<p align="center">Your new coding bestie, now available in your favourite terminal.<br />Your tools, your code, and your workflows, wired into your LLM of choice.</p>
 10<p align="center">你的新编程伙伴，现在就在你最爱的终端中。<br />你的工具、代码和工作流，都与您选择的 LLM 模型紧密相连。</p>
 11
 12<p align="center"><img width="800" alt="Crush Demo" src="https://github.com/user-attachments/assets/58280caf-851b-470a-b6f7-d5c4ea8a1968" /></p>
 13
 14## Features
 15
 16- **Multi-Model:** choose from a wide range of LLMs or add your own via OpenAI- or Anthropic-compatible APIs
 17- **Flexible:** switch LLMs mid-session while preserving context
 18- **Session-Based:** maintain multiple work sessions and contexts per project
 19- **LSP-Enhanced:** Crush uses LSPs for additional context, just like you do
 20- **Extensible:** add capabilities via MCPs (`http`, `stdio`, and `sse`)
 21- **Works Everywhere:** first-class support in every terminal on macOS, Linux, Windows (PowerShell and WSL), FreeBSD, OpenBSD, and NetBSD
 22
 23## Installation
 24
 25Use a package manager:
 26
 27```bash
 28# Homebrew
 29brew install charmbracelet/tap/crush
 30
 31# NPM
 32npm install -g @charmland/crush
 33
 34# Arch Linux (btw)
 35yay -S crush-bin
 36
 37# Nix
 38nix run github:numtide/nix-ai-tools#crush
 39```
 40
 41Windows users:
 42
 43```bash
 44# Winget
 45winget install charmbracelet.crush
 46
 47# Scoop
 48scoop bucket add charm https://github.com/charmbracelet/scoop-bucket.git
 49scoop install crush
 50```
 51
 52<details>
 53<summary><strong>Nix (NUR)</strong></summary>
 54
 55Crush is available via [NUR](https://github.com/nix-community/NUR) in `nur.repos.charmbracelet.crush`.
 56
 57You can also try out Crush via `nix-shell`:
 58
 59```bash
 60# Add the NUR channel.
 61nix-channel --add https://github.com/nix-community/NUR/archive/main.tar.gz nur
 62nix-channel --update
 63
 64# Get Crush in a Nix shell.
 65nix-shell -p '(import <nur> { pkgs = import <nixpkgs> {}; }).repos.charmbracelet.crush'
 66```
 67
 68### NixOS & Home Manager Module Usage via NUR
 69
 70Crush provides NixOS and Home Manager modules via NUR.
 71You can use these modules directly in your flake by importing them from NUR. Since it auto detects whether its a home manager or nixos context you can use the import the exact same way :)
 72
 73```nix
 74{
 75  inputs = {
 76    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
 77    nur.url = "github:nix-community/NUR";
 78  };
 79
 80  outputs = { self, nixpkgs, nur, ... }: {
 81    nixosConfigurations.your-hostname = nixpkgs.lib.nixosSystem {
 82      system = "x86_64-linux";
 83      modules = [
 84        nur.modules.nixos.default
 85        nur.repos.charmbracelet.modules.crush
 86        {
 87          programs.crush = {
 88            enable = true;
 89            settings = {
 90              providers = {
 91                openai = {
 92                  id = "openai";
 93                  name = "OpenAI";
 94                  base_url = "https://api.openai.com/v1";
 95                  type = "openai";
 96                  api_key = "sk-fake123456789abcdef...";
 97                  models = [
 98                    {
 99                      id = "gpt-4";
100                      name = "GPT-4";
101                    }
102                  ];
103                };
104              };
105              lsp = {
106                go = { command = "gopls"; enabled = true; };
107                nix = { command = "nil"; enabled = true; };
108              };
109              options = {
110                context_paths = [ "/etc/nixos/configuration.nix" ];
111                tui = { compact_mode = true; };
112                debug = false;
113              };
114            };
115          };
116        }
117      ];
118    };
119  };
120}
121```
122
123</details>
124
125<details>
126<summary><strong>Debian/Ubuntu</strong></summary>
127
128```bash
129sudo mkdir -p /etc/apt/keyrings
130curl -fsSL https://repo.charm.sh/apt/gpg.key | sudo gpg --dearmor -o /etc/apt/keyrings/charm.gpg
131echo "deb [signed-by=/etc/apt/keyrings/charm.gpg] https://repo.charm.sh/apt/ * *" | sudo tee /etc/apt/sources.list.d/charm.list
132sudo apt update && sudo apt install crush
133```
134
135</details>
136
137<details>
138<summary><strong>Fedora/RHEL</strong></summary>
139
140```bash
141echo '[charm]
142name=Charm
143baseurl=https://repo.charm.sh/yum/
144enabled=1
145gpgcheck=1
146gpgkey=https://repo.charm.sh/yum/gpg.key' | sudo tee /etc/yum.repos.d/charm.repo
147sudo yum install crush
148```
149
150</details>
151
152Or, download it:
153
154- [Packages][releases] are available in Debian and RPM formats
155- [Binaries][releases] are available for Linux, macOS, Windows, FreeBSD, OpenBSD, and NetBSD
156
157[releases]: https://github.com/charmbracelet/crush/releases
158
159Or just install it with Go:
160
161```
162go install github.com/charmbracelet/crush@latest
163```
164
165> [!WARNING]
166> Productivity may increase when using Crush and you may find yourself nerd
167> sniped when first using the application. If the symptoms persist, join the
168> [Discord][discord] and nerd snipe the rest of us.
169
170## Getting Started
171
172The quickest way to get started is to grab an API key for your preferred
173provider such as Anthropic, OpenAI, Groq, or OpenRouter and just start
174Crush. You'll be prompted to enter your API key.
175
176That said, you can also set environment variables for preferred providers.
177
178| Environment Variable        | Provider                                           |
179| --------------------------- | -------------------------------------------------- |
180| `ANTHROPIC_API_KEY`         | Anthropic                                          |
181| `OPENAI_API_KEY`            | OpenAI                                             |
182| `OPENROUTER_API_KEY`        | OpenRouter                                         |
183| `GEMINI_API_KEY`            | Google Gemini                                      |
184| `CEREBRAS_API_KEY`          | Cerebras                                           |
185| `HF_TOKEN`                  | Huggingface Inference                              |
186| `VERTEXAI_PROJECT`          | Google Cloud VertexAI (Gemini)                     |
187| `VERTEXAI_LOCATION`         | Google Cloud VertexAI (Gemini)                     |
188| `GROQ_API_KEY`              | Groq                                               |
189| `AWS_ACCESS_KEY_ID`         | AWS Bedrock (Claude)                               |
190| `AWS_SECRET_ACCESS_KEY`     | AWS Bedrock (Claude)                               |
191| `AWS_REGION`                | AWS Bedrock (Claude)                               |
192| `AWS_PROFILE`               | AWS Bedrock (Custom Profile)                       |
193| `AWS_BEARER_TOKEN_BEDROCK`  | AWS Bedrock                                        |
194| `AZURE_OPENAI_API_ENDPOINT` | Azure OpenAI models                                |
195| `AZURE_OPENAI_API_KEY`      | Azure OpenAI models (optional when using Entra ID) |
196| `AZURE_OPENAI_API_VERSION`  | Azure OpenAI models                                |
197
198### By the Way
199
200Is there a provider you’d like to see in Crush? Is there an existing model that needs an update?
201
202Crush’s default model listing is managed in [Catwalk](https://github.com/charmbracelet/catwalk), a community-supported, open source repository of Crush-compatible models, and you’re welcome to contribute.
203
204<a href="https://github.com/charmbracelet/catwalk"><img width="174" height="174" alt="Catwalk Badge" src="https://github.com/user-attachments/assets/95b49515-fe82-4409-b10d-5beb0873787d" /></a>
205
206## Configuration
207
208Crush runs great with no configuration. That said, if you do need or want to
209customize Crush, configuration can be added either local to the project itself,
210or globally, with the following priority:
211
2121. `.crush.json`
2132. `crush.json`
2143. `$HOME/.config/crush/crush.json` (Windows: `%USERPROFILE%\AppData\Local\crush\crush.json`)
215
216Configuration itself is stored as a JSON object:
217
218```json
219{
220  "this-setting": { "this": "that" },
221  "that-setting": ["ceci", "cela"]
222}
223```
224
225As an additional note, Crush also stores ephemeral data, such as application state, in one additional location:
226
227```bash
228# Unix
229$HOME/.local/share/crush/crush.json
230
231# Windows
232%LOCALAPPDATA%\crush\crush.json
233```
234
235### LSPs
236
237Crush can use LSPs for additional context to help inform its decisions, just
238like you would. LSPs can be added manually like so:
239
240```json
241{
242  "$schema": "https://charm.land/crush.json",
243  "lsp": {
244    "go": {
245      "command": "gopls",
246      "env": {
247        "GOTOOLCHAIN": "go1.24.5"
248      }
249    },
250    "typescript": {
251      "command": "typescript-language-server",
252      "args": ["--stdio"]
253    },
254    "nix": {
255      "command": "nil"
256    }
257  }
258}
259```
260
261### MCPs
262
263Crush also supports Model Context Protocol (MCP) servers through three
264transport types: `stdio` for command-line servers, `http` for HTTP endpoints,
265and `sse` for Server-Sent Events. Environment variable expansion is supported
266using `$(echo $VAR)` syntax.
267
268```json
269{
270  "$schema": "https://charm.land/crush.json",
271  "mcp": {
272    "filesystem": {
273      "type": "stdio",
274      "command": "node",
275      "args": ["/path/to/mcp-server.js"],
276      "timeout": 120,
277      "disabled": false,
278      "env": {
279        "NODE_ENV": "production"
280      }
281    },
282    "github": {
283      "type": "http",
284      "url": "https://example.com/mcp/",
285      "timeout": 120,
286      "disabled": false,
287      "headers": {
288        "Authorization": "$(echo Bearer $EXAMPLE_MCP_TOKEN)"
289      }
290    },
291    "streaming-service": {
292      "type": "sse",
293      "url": "https://example.com/mcp/sse",
294      "timeout": 120,
295      "disabled": false,
296      "headers": {
297        "API-Key": "$(echo $API_KEY)"
298      }
299    }
300  }
301}
302```
303
304### Ignoring Files
305
306Crush respects `.gitignore` files by default, but you can also create a
307`.crushignore` file to specify additional files and directories that Crush
308should ignore. This is useful for excluding files that you want in version
309control but don't want Crush to consider when providing context.
310
311The `.crushignore` file uses the same syntax as `.gitignore` and can be placed
312in the root of your project or in subdirectories.
313
314### Allowing Tools
315
316By default, Crush will ask you for permission before running tool calls. If
317you'd like, you can allow tools to be executed without prompting you for
318permissions. Use this with care.
319
320```json
321{
322  "$schema": "https://charm.land/crush.json",
323  "permissions": {
324    "allowed_tools": [
325      "view",
326      "ls",
327      "grep",
328      "edit",
329      "mcp_context7_get-library-doc"
330    ]
331  }
332}
333```
334
335You can also skip all permission prompts entirely by running Crush with the
336`--yolo` flag. Be very, very careful with this feature.
337
338### Attribution Settings
339
340By default, Crush adds attribution information to Git commits and pull requests
341it creates. You can customize this behavior with the `attribution` option:
342
343```json
344{
345  "$schema": "https://charm.land/crush.json",
346  "options": {
347    "attribution": {
348      "co_authored_by": true,
349      "generated_with": true
350    }
351  }
352}
353```
354
355- `co_authored_by`: When true (default), adds `Co-Authored-By: Crush <crush@charm.land>` to commit messages
356- `generated_with`: When true (default), adds `💘 Generated with Crush` line to commit messages and PR descriptions
357
358### Local Models
359
360Local models can also be configured via OpenAI-compatible API. Here are two common examples:
361
362#### Ollama
363
364```json
365{
366  "providers": {
367    "ollama": {
368      "name": "Ollama",
369      "base_url": "http://localhost:11434/v1/",
370      "type": "openai-compat",
371      "models": [
372        {
373          "name": "Qwen 3 30B",
374          "id": "qwen3:30b",
375          "context_window": 256000,
376          "default_max_tokens": 20000
377        }
378      ]
379    }
380  }
381}
382```
383
384#### LM Studio
385
386```json
387{
388  "providers": {
389    "lmstudio": {
390      "name": "LM Studio",
391      "base_url": "http://localhost:1234/v1/",
392      "type": "openai-compat",
393      "models": [
394        {
395          "name": "Qwen 3 30B",
396          "id": "qwen/qwen3-30b-a3b-2507",
397          "context_window": 256000,
398          "default_max_tokens": 20000
399        }
400      ]
401    }
402  }
403}
404```
405
406### Custom Providers
407
408Crush supports custom provider configurations for both OpenAI-compatible and
409Anthropic-compatible APIs.
410
411#### OpenAI-Compatible APIs
412
413Here’s an example configuration for Deepseek, which uses an OpenAI-compatible
414API. Don't forget to set `DEEPSEEK_API_KEY` in your environment.
415
416```json
417{
418  "$schema": "https://charm.land/crush.json",
419  "providers": {
420    "deepseek": {
421      "type": "openai-compat",
422      "base_url": "https://api.deepseek.com/v1",
423      "api_key": "$DEEPSEEK_API_KEY",
424      "models": [
425        {
426          "id": "deepseek-chat",
427          "name": "Deepseek V3",
428          "cost_per_1m_in": 0.27,
429          "cost_per_1m_out": 1.1,
430          "cost_per_1m_in_cached": 0.07,
431          "cost_per_1m_out_cached": 1.1,
432          "context_window": 64000,
433          "default_max_tokens": 5000
434        }
435      ]
436    }
437  }
438}
439```
440
441#### Anthropic-Compatible APIs
442
443Custom Anthropic-compatible providers follow this format:
444
445```json
446{
447  "$schema": "https://charm.land/crush.json",
448  "providers": {
449    "custom-anthropic": {
450      "type": "anthropic",
451      "base_url": "https://api.anthropic.com/v1",
452      "api_key": "$ANTHROPIC_API_KEY",
453      "extra_headers": {
454        "anthropic-version": "2023-06-01"
455      },
456      "models": [
457        {
458          "id": "claude-sonnet-4-20250514",
459          "name": "Claude Sonnet 4",
460          "cost_per_1m_in": 3,
461          "cost_per_1m_out": 15,
462          "cost_per_1m_in_cached": 3.75,
463          "cost_per_1m_out_cached": 0.3,
464          "context_window": 200000,
465          "default_max_tokens": 50000,
466          "can_reason": true,
467          "supports_attachments": true
468        }
469      ]
470    }
471  }
472}
473```
474
475### Amazon Bedrock
476
477Crush currently supports running Anthropic models through Bedrock, with caching disabled.
478
479- A Bedrock provider will appear once you have AWS configured, i.e. `aws configure`
480- Crush also expects the `AWS_REGION` or `AWS_DEFAULT_REGION` to be set
481- To use a specific AWS profile set `AWS_PROFILE` in your environment, i.e. `AWS_PROFILE=myprofile crush`
482- Alternatively to `aws configure`, you can also just set `AWS_BEARER_TOKEN_BEDROCK`
483
484### Vertex AI Platform
485
486Vertex AI will appear in the list of available providers when `VERTEXAI_PROJECT` and `VERTEXAI_LOCATION` are set. You will also need to be authenticated:
487
488```bash
489gcloud auth application-default login
490```
491
492To add specific models to the configuration, configure as such:
493
494```json
495{
496  "$schema": "https://charm.land/crush.json",
497  "providers": {
498    "vertexai": {
499      "models": [
500        {
501          "id": "claude-sonnet-4@20250514",
502          "name": "VertexAI Sonnet 4",
503          "cost_per_1m_in": 3,
504          "cost_per_1m_out": 15,
505          "cost_per_1m_in_cached": 3.75,
506          "cost_per_1m_out_cached": 0.3,
507          "context_window": 200000,
508          "default_max_tokens": 50000,
509          "can_reason": true,
510          "supports_attachments": true
511        }
512      ]
513    }
514  }
515}
516```
517
518## Logging
519
520Sometimes you need to look at logs. Luckily, Crush logs all sorts of
521stuff. Logs are stored in `./.crush/logs/crush.log` relative to the project.
522
523The CLI also contains some helper commands to make perusing recent logs easier:
524
525```bash
526# Print the last 1000 lines
527crush logs
528
529# Print the last 500 lines
530crush logs --tail 500
531
532# Follow logs in real time
533crush logs --follow
534```
535
536Want more logging? Run `crush` with the `--debug` flag, or enable it in the
537config:
538
539```json
540{
541  "$schema": "https://charm.land/crush.json",
542  "options": {
543    "debug": true,
544    "debug_lsp": true
545  }
546}
547```
548
549## Provider Auto-Updates
550
551By default, Crush automatically checks for the latest and greatest list of
552providers and models from [Catwalk](https://github.com/charmbracelet/catwalk),
553the open source Crush provider database. This means that when new providers and
554models are available, or when model metadata changes, Crush automatically
555updates your local configuration.
556
557### Disabling automatic provider updates
558
559For those with restricted internet access, or those who prefer to work in
560air-gapped environments, this might not be want you want, and this feature can
561be disabled.
562
563To disable automatic provider updates, set `disable_provider_auto_update` into
564your `crush.json` config:
565
566```json
567{
568  "$schema": "https://charm.land/crush.json",
569  "options": {
570    "disable_provider_auto_update": true
571  }
572}
573```
574
575Or set the `CRUSH_DISABLE_PROVIDER_AUTO_UPDATE` environment variable:
576
577```bash
578export CRUSH_DISABLE_PROVIDER_AUTO_UPDATE=1
579```
580
581### Manually updating providers
582
583Manually updating providers is possible with the `crush update-providers`
584command:
585
586```bash
587# Update providers remotely from Catwalk.
588crush update-providers
589
590# Update providers from a custom Catwalk base URL.
591crush update-providers https://example.com/
592
593# Update providers from a local file.
594crush update-providers /path/to/local-providers.json
595
596# Reset providers to the embedded version, embedded at crush at build time.
597crush update-providers embedded
598
599# For more info:
600crush update-providers --help
601```
602
603## Metrics
604
605Crush records pseudonymous usage metrics (tied to a device-specific hash),
606which maintainers rely on to inform development and support priorities. The
607metrics include solely usage metadata; prompts and responses are NEVER
608collected.
609
610Details on exactly what’s collected are in the source code ([here](https://github.com/charmbracelet/crush/tree/main/internal/event)
611and [here](https://github.com/charmbracelet/crush/blob/main/internal/llm/agent/event.go)).
612
613You can opt out of metrics collection at any time by setting the environment
614variable by setting the following in your environment:
615
616```bash
617export CRUSH_DISABLE_METRICS=1
618```
619
620Or by setting the following in your config:
621
622```json
623{
624  "options": {
625    "disable_metrics": true
626  }
627}
628```
629
630Crush also respects the [`DO_NOT_TRACK`](https://consoledonottrack.com)
631convention which can be enabled via `export DO_NOT_TRACK=1`.
632
633## A Note on Claude Max and GitHub Copilot
634
635Crush only supports model providers through official, compliant APIs. We do not
636support or endorse any methods that rely on personal Claude Max and GitHub
637Copilot accounts or OAuth workarounds, which violate Anthropic and
638Microsoft’s Terms of Service.
639
640We’re committed to building sustainable, trusted integrations with model
641providers. If you’re a provider interested in working with us,
642[reach out](mailto:vt100@charm.sh).
643
644## Contributing
645
646See the [contributing guide](https://github.com/charmbracelet/crush?tab=contributing-ov-file#contributing).
647
648## Whatcha think?
649
650We’d love to hear your thoughts on this project. Need help? We gotchu. You can find us on:
651
652- [Twitter](https://twitter.com/charmcli)
653- [Slack](https://charm.land/slack)
654- [Discord][discord]
655- [The Fediverse](https://mastodon.social/@charmcli)
656- [Bluesky](https://bsky.app/profile/charm.land)
657
658[discord]: https://charm.land/discord
659
660## License
661
662[FSL-1.1-MIT](https://github.com/charmbracelet/crush/raw/main/LICENSE.md)
663
664---
665
666Part of [Charm](https://charm.land).
667
668<a href="https://charm.land/"><img alt="The Charm logo" width="400" src="https://stuff.charm.sh/charm-banner-next.jpg" /></a>
669
670<!--prettier-ignore-->
671Charm热爱开源 • Charm loves open source