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Use Claude Code with Manifest

— / 30 days
Coding Assistant

Claude Code reads its API config from ~/.claude/settings.json on every run. Drop the Manifest block in there and your Claude Code sessions quietly route through the cheapest capable model. Still Claude when it matters, something cheaper when it doesn't.

— models routed through Manifest over the last 30 days.

Why use Claude Code with Manifest

Claude Sonnet and Opus are top-tier reasoners but pricing scales fast on long agentic sessions. Manifest detects which prompts genuinely need Claude and routes the rest to cheaper models, without ever leaving the Claude Code experience.

  • Slash Claude API costs by 40-70% with no code changes
  • Persistent setup via settings.json, no shell rc edits
  • Fall back to other providers when Anthropic rate limits hit
  • Track every Claude request, model used, and cost in one dashboard
  • Use Claude for hard prompts, cheap models for boilerplate
  • Self-host the router on your own infra, no vendor lock-in

Setup in 60 seconds

Add a single block to ~/.claude/settings.json and every claude run picks up the new endpoint. No flag, no env var, no restart.

Add this block to ~/.claude/settings.json and every claude run will route through Manifest. 

{
  "env": {
    "ANTHROPIC_BASE_URL": "https://api.manifest.build",
    "ANTHROPIC_AUTH_TOKEN": "mnfst_YOUR_KEY"
  }
}
ANTHROPIC_BASE_URL https://api.manifest.build
ANTHROPIC_AUTH_TOKEN mnfst_YOUR_KEY

Claude Code tokens processed on Manifest

Models in use

# Model
 Auth type Tokens / last 30 days