Claude Code

Last updated: 2026-08-03; third-party tools can change at any time. If configuration fails, follow the latest official documentation.

Claude Code is a terminal-based coding agent. Review the Claude Code setup guide, settings documentation, and environment variable reference, then configure Token Market as an Anthropic-compatible endpoint.

Installation and configuration

Follow the official guide to install the CLI, then run claude in your project directory. The first time you open a directory, confirm the trust prompt before continuing.

Add environment variables to ~/.claude/settings.json:

{
  "env": {
    "ANTHROPIC_BASE_URL": "https://api.tokensmarket.ai/v1/messages",
    "ANTHROPIC_AUTH_TOKEN": "<YOUR_TOKEN_MARKET_API_KEY>",
    "ANTHROPIC_DEFAULT_FABLE_MODEL": "claude-Fable-5",
    "ANTHROPIC_DEFAULT_FABLE_MODEL_NAME": "claude-Fable-5",
    "ANTHROPIC_DEFAULT_HAIKU_MODEL": "claude-haiku-4-5-20251001",
    "ANTHROPIC_DEFAULT_HAIKU_MODEL_NAME": "claude-haiku-4-5",
    "ANTHROPIC_DEFAULT_OPUS_MODEL": "claude-opus-5",
    "ANTHROPIC_DEFAULT_OPUS_MODEL_NAME": "claude-opus-5",
    "ANTHROPIC_DEFAULT_SONNET_MODEL": "claude-sonnet-5",
    "ANTHROPIC_DEFAULT_SONNET_MODEL_NAME": "claude-sonnet-5",
    "ANTHROPIC_MODEL": "claude-sonnet-5"
  }
}

Setting	Purpose	Recommendation
`ANTHROPIC_BASE_URL`	Claude Messages API endpoint	Use `https://api.tokensmarket.ai/v1/messages`.
`ANTHROPIC_AUTH_TOKEN`	Token Market API Key	Inject only through environment variables or local configuration.
`ANTHROPIC_DEFAULT_FABLE_MODEL` / `ANTHROPIC_DEFAULT_FABLE_MODEL_NAME`	Default Fable models	Use `claude-Fable-5`.
`ANTHROPIC_DEFAULT_HAIKU_MODEL` / `ANTHROPIC_DEFAULT_HAIKU_MODEL_NAME`	Default Haiku models	Use `claude-haiku-4-5-20251001` / `claude-haiku-4-5`.
`ANTHROPIC_DEFAULT_OPUS_MODEL` / `ANTHROPIC_DEFAULT_OPUS_MODEL_NAME`	Default Opus models	Use `claude-opus-5`.
`ANTHROPIC_DEFAULT_SONNET_MODEL` / `ANTHROPIC_DEFAULT_SONNET_MODEL_NAME`	Default Sonnet models	Use `claude-sonnet-5`.
`ANTHROPIC_MODEL`	Current default model	Use `claude-sonnet-5`.

Startup and verification

cd /path/to/your/project
claude

First, ask Claude Code to summarize a nonsensitive file without making changes. Then test an edit. For a 401 response, check the Key and workspace; for a model error, verify the model ID.

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