Kimi K2.7 Code: Official Claude Code Integration & Multi-Tier Model Mapping

One-Line Summary

Forwarding Claude Code requests to Kimi's Anthropic-compatible endpoint requires explicitly keeping Thinking enabled (Tab key), setting the auto-compact window to 256K (262144), and fully mapping all Opus/Sonnet/Haiku/Fable/Subagent tier aliases.

Applicable Scenarios

• Suitable tasks: Repository-level coding, multi-file refactoring, test execution, and subagent orchestration in Claude Code CLI.

• Unsuitable tasks: Zero-thinking fast generation, single prompt dumps exceeding 256K context, partial configurations missing Haiku/Subagent variables.

• Applicable model versions: kimi-k2.7-code (Standard), kimi-k2.7-code-highspeed (~180–260 tokens/s).

• Applicable clients/APIs: @anthropic-ai/claude-code CLI, Kimi Anthropic-compatible API endpoint (https://api.moonshot.ai/anthropic).

• Recommended inference parameters: CLAUDE_CODE_EFFORT_LEVEL="max", CLAUDE_CODE_AUTO_COMPACT_WINDOW="262144", Thinking enabled.

Directly Usable Content

Option 1: Terminal Environment Variables (Current Session)

macOS / Linux (bash/zsh)

export ANTHROPIC_BASE_URL="https://api.moonshot.ai/anthropic"
export ANTHROPIC_AUTH_TOKEN="YOUR_MOONSHOT_API_KEY"
export ANTHROPIC_MODEL="kimi-k2.7-code"
export ANTHROPIC_DEFAULT_OPUS_MODEL="kimi-k2.7-code"
export ANTHROPIC_DEFAULT_SONNET_MODEL="kimi-k2.7-code"
export ANTHROPIC_DEFAULT_HAIKU_MODEL="kimi-k2.7-code"
export ANTHROPIC_DEFAULT_FABLE_MODEL="kimi-k2.7-code"
export CLAUDE_CODE_SUBAGENT_MODEL="kimi-k2.7-code"
export CLAUDE_CODE_AUTO_COMPACT_WINDOW="262144"
export CLAUDE_CODE_EFFORT_LEVEL="max"
claude

Windows (PowerShell)

$env:ANTHROPIC_BASE_URL="https://api.moonshot.ai/anthropic";
$env:ANTHROPIC_AUTH_TOKEN="YOUR_MOONSHOT_API_KEY";
$env:ANTHROPIC_MODEL="kimi-k2.7-code";
$env:ANTHROPIC_DEFAULT_OPUS_MODEL="kimi-k2.7-code";
$env:ANTHROPIC_DEFAULT_SONNET_MODEL="kimi-k2.7-code";
$env:ANTHROPIC_DEFAULT_HAIKU_MODEL="kimi-k2.7-code";
$env:ANTHROPIC_DEFAULT_FABLE_MODEL="kimi-k2.7-code";
$env:CLAUDE_CODE_SUBAGENT_MODEL="kimi-k2.7-code";
$env:CLAUDE_CODE_AUTO_COMPACT_WINDOW="262144";
$env:CLAUDE_CODE_EFFORT_LEVEL="max";
claude

Option 2: Persistent Configuration (~/.claude/settings.json)

{
  "env": {
    "ANTHROPIC_BASE_URL": "https://api.moonshot.ai/anthropic",
    "ANTHROPIC_AUTH_TOKEN": "YOUR_MOONSHOT_API_KEY",
    "ANTHROPIC_MODEL": "kimi-k2.7-code",
    "ANTHROPIC_DEFAULT_OPUS_MODEL": "kimi-k2.7-code",
    "ANTHROPIC_DEFAULT_SONNET_MODEL": "kimi-k2.7-code",
    "ANTHROPIC_DEFAULT_HAIKU_MODEL": "kimi-k2.7-code",
    "ANTHROPIC_DEFAULT_FABLE_MODEL": "kimi-k2.7-code",
    "CLAUDE_CODE_SUBAGENT_MODEL": "kimi-k2.7-code",
    "CLAUDE_CODE_AUTO_COMPACT_WINDOW": "262144",
    "CLAUDE_CODE_EFFORT_LEVEL": "max"
  }
}

Testing / Workflow Steps

1. Install Claude Code: npm install -g @anthropic-ai/claude-code.

2. Obtain an API Key from Kimi API Platform (platform.kimi.ai).

3. Set environment variables or update ~/.claude/settings.json.

4. Run claude and execute /status to verify:

   • Base URL displays https://api.moonshot.ai/anthropic

   • Model displays kimi-k2.7-code

5. Press Tab in Claude Code to ensure the "Thinking on" indicator is active.

6. Submit a test instruction (e.g. summarize directory structure and package.json) to confirm tool execution.

Raw Evidence & Data

• Multi-tier model fallback: Claude Code uses Haiku for background summaries and Opus/Sonnet for complex tasks. Omitting tier variables causes silent 404/auth failures.

• Compaction window matching: K2.7 Code has a 256K window (262144). Setting 1M causes context overflow errors; setting too low causes premature context loss.

• Thinking requirement: kimi-k2.7-code rejects non-thinking requests with HTTP 400 (invalid thinking: only type=enabled is allowed).

Boundaries & Constraints

• Requires Kimi's Anthropic compatibility endpoint; unofficial wrappers must support reasoning token propagation.

• /model menu in Claude Code is hardcoded and will not list Kimi aliases; verify via /status.