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FireConnect routes Claude Code through Fireworks AI models. See the FireConnect overview for install and CLI basics.

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Prerequisites

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Enable Fireworks routing

export FIREWORKS_API_KEY=fw_...
fireconnect claude on
Or pass the key once: 
fireconnect claude on --api-key fw_...
Restart Claude Code after enabling, then test with: 
hi
After fireconnect claude on, model select, or model reset, settings are updated immediately. To use a new model in the same session, run /model in Claude Code, start a new session, or /exit and resume with claude --resume <id>.

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Using Fire Pass

Use your fpk_... key instead of a standard fw_... key: 
fireconnect claude on --api-key fpk_...
FireConnect detects Fire Pass keys and routes all model aliases to glm-latest.

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Default model mapping

AliasStandard key (fw_...)Fire Pass key (fpk_...)
mainglm-latestglm-latest
opusglm-latestglm-latest
sonnetglm-5p1glm-latest
haikudeepseek-v4-flashglm-latest
subagentdeepseek-v4-flashglm-latest
Short model IDs like glm-latest are expanded to full Fireworks paths (for example, accounts/fireworks/routers/glm-latest[1m]). FireConnect appends the [1m] suffix on main and opus so Claude Code enables 1M context. The subagent slot is written without [1m] because Claude Code forwards that value verbatim to the provider API.

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What gets written

FireConnect writes these settings to ~/.claude/settings.json: 
{
  "env": {
    "ANTHROPIC_BASE_URL": "https://api.fireworks.ai/inference",
    "ANTHROPIC_API_KEY": "fw_YOUR_FIREWORKS_API_KEY",
    "ANTHROPIC_AUTH_TOKEN": "fw_YOUR_FIREWORKS_API_KEY",
    "ANTHROPIC_MODEL": "accounts/fireworks/routers/glm-latest[1m]",
    "ANTHROPIC_DEFAULT_OPUS_MODEL": "accounts/fireworks/routers/glm-latest[1m]",
    "ANTHROPIC_DEFAULT_SONNET_MODEL": "accounts/fireworks/models/glm-5p1",
    "ANTHROPIC_DEFAULT_HAIKU_MODEL": "accounts/fireworks/models/deepseek-v4-flash",
    "CLAUDE_CODE_SUBAGENT_MODEL": "accounts/fireworks/models/deepseek-v4-flash"
  }
}
FireConnect writes both ANTHROPIC_API_KEY (preferred) and ANTHROPIC_AUTH_TOKEN (compatibility alias) with the same Fireworks key. It saves a backup of your previous provider settings to ~/.fireconnect/claude/ so fireconnect claude off can restore them.

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Browsing and picking models

fireconnect claude model list              # browse callable serverless endpoints
fireconnect claude model select            # pick a model for Claude Code
fireconnect claude model select --slot sonnet   # update one alias

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fireconnect claude model list

Lists serverless models from the Fireworks API (supports_serverless=true) and merges known public platform aliases (glm-latest, kimi-fast-latest, kimi-latest, kimi-k2p6-turbo, and kimi-k2p7-code-fast). Every row is tagged serverless. 
fireconnect claude model list
fireconnect claude model list --search glm
fireconnect claude model list --json
Resolves the key from --api-key, harness settings, ~/.fireconnect/config.json, or FIREWORKS_API_KEY. Fire Pass keys (fpk_...) show Fire Pass-supported models only.

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fireconnect claude model select

Interactive picker. Requires a terminal and Fireworks to be enabled. 
fireconnect claude model select
fireconnect claude model select --slot sonnet
fireconnect claude model select --slot sonnet --search glm

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fireconnect claude status vs fireconnect claude model list

CommandShows
fireconnect claude statusYour current provider, auth, configured alias mapping, and Fireworks serverless rates per slot
fireconnect claude model listAvailable serverless endpoints from the Fireworks API, with IN / OUT pricing where known

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Claude Code pricing estimates

Claude Code’s /model picker and session cost estimates use Anthropic list prices, not Fireworks serverless rates. For example, the default glm-latest mapping may show Opus-tier estimates around 5/5 / 25 per Mtok while Fireworks bills at model-specific serverless rates (often much lower). FireConnect cannot override Claude Code’s price column. Use fireconnect claude status and fireconnect claude model list for Fireworks rates, and check the billing dashboard for actual spend.

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CLI reference

fireconnect claude on         # Route Claude Code through Fireworks
fireconnect claude off        # Restore your previous provider
fireconnect claude status     # Show the current provider and model mapping
fireconnect claude model list # Browse serverless models
fireconnect claude model select   # Pick a model interactively
fireconnect claude model reset    # Reset model aliases to defaults
fireconnect claude help       # Show harness-specific help
Run fireconnect claude help for all options.

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Switch models

fireconnect claude on --main glm-latest --sonnet glm-5p1 --haiku deepseek-v4-flash --subagent deepseek-v4-flash
Or pick interactively: 
fireconnect claude model select --slot opus

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Turn off Fireworks routing

fireconnect claude off
This restores your previous ~/.claude/settings.json from the backup saved in ~/.fireconnect/claude/.

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Uninstall

To remove FireConnect from your machine entirely (all harnesses): 
fireconnect uninstall

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Source

FireConnect is open source: github.com/fw-ai/fireconnect