Provider setup now carries the metadata needed for sponsored and local Anthropic-compatible providers, while keeping provider URLs and API keys editable in the desktop form. The desktop UI also exposes API-key links, optional sponsor copy, full key visibility, and local no-key presets that can be activated into runtime settings.
Constraint: Local LM Studio and Ollama integrations require Anthropic-compatible root URLs rather than OpenAI /v1 URLs
Rejected: Keep local providers at the top of the preset list | user requested them immediately before Custom
Confidence: high
Scope-risk: moderate
Directive: Do not change local provider base URLs to /v1 without rechecking Anthropic compatibility docs
Tested: bun test src/server/__tests__/provider-presets.test.ts src/server/__tests__/providers.test.ts
Tested: cd desktop && bun run lint
Tested: cd desktop && bun run test src/__tests__/generalSettings.test.tsx --run
Tested: git diff --cached --check
Tested: Web UI provider creation plus real sessions for LM Studio, Ollama, JiekouAI, and Shengsuanyun
Not-tested: Production packaged Tauri build
Kimi Code documents a separate Anthropic-compatible coding endpoint from the Moonshot open platform, so the built-in Kimi preset should point Claude-compatible traffic at the coding endpoint instead of the retired Moonshot anthropic path.
Constraint: Kimi Code Anthropic-compatible base URL is https://api.kimi.com/coding/ and this app appends /v1/messages at runtime.
Rejected: Use https://api.moonshot.cn/coding | official Kimi docs distinguish Kimi Code from the Moonshot open platform URLs.
Confidence: high
Scope-risk: narrow
Directive: Do not switch Kimi back to api.moonshot.cn/anthropic without rechecking current Kimi Code docs.
Tested: bun test src/server/__tests__/provider-presets.test.ts
Not-tested: Live Kimi API call with a real user key
The provider picker had two separate preset definitions and some defaults had
started to drift from the model IDs vendors document for Claude Code /
Anthropic-compatible usage. This change moves built-in presets to one
server-side JSON source, serves that source through the existing presets API,
and makes the desktop settings page consume the API instead of a duplicated
frontend constant. The preset defaults were then corrected against vendor docs
so the built-in values match documented model IDs and casing.
Constraint: Built-in provider defaults must match official vendor Claude Code or Anthropic docs
Rejected: Keep duplicated frontend and backend preset lists | values and casing drifted independently
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Update src/server/config/providerPresets.json and rerun provider-presets tests before changing built-in provider defaults again
Tested: bun test src/server/__tests__/provider-presets.test.ts; cd desktop && bun run lint
Not-tested: Manual desktop settings UI interaction after fetching presets from the API
Add a protocol-translating reverse proxy that allows using OpenAI-compatible
API providers (DeepSeek, OpenRouter, Groq, etc.) with Claude Code.
The proxy intercepts Anthropic Messages API requests from the CLI, transforms
them to OpenAI Chat Completions or Responses API format, forwards to the
upstream provider, and transforms streaming/non-streaming responses back.
Key features:
- Request transform: Anthropic Messages → OpenAI Chat/Responses
- Response transform: OpenAI → Anthropic (streaming SSE + non-streaming)
- Provider-agnostic reasoning support (reasoning_content, thinking_blocks,
reasoning fields from DeepSeek, OpenAI o-series, GLM-5, Groq, etc.)
- Event queue pattern for correct Anthropic SSE event ordering
- Two-step test: ① connectivity check ② full proxy pipeline validation
- Desktop UI: API format selector, two-step test results display
- License attribution for cc-switch (MIT, Jason Young)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
