Send a chat completion request to GammaInfra and receive the model response plus routing metadata. Smart routing picks the best-fit model when model='gammainfra/auto'; pin a specific model like 'openai/gpt-5-mini' for direct dispatch. Returns the OpenAI-shape response in a 'response' field and routing decisions (provider, endpoint, cost in USD, router version, fallback chain) in a 'routing_meta' field. Streaming is not supported via MCP; the request always uses stream=false.

List every model available on GammaInfra with pricing and capability flags. Covers OpenAI, Anthropic, Google, Mistral, Groq, DeepSeek, xAI, and Amazon Bedrock today; plus the meta-models gammainfra/auto, gammainfra/fast, and gammainfra/cheap. No parameters.

Return the authenticated customer's GammaInfra balances: managed (USD) and currency. Pass include_byok=true to also fetch the BYOK (USD if enrolled) balance; when omitted, byok_balance_usd is null and no BYOK request is made. With include_byok=true, BYOK is reported inline as a byok_error string if the BYOK endpoint fails (e.g., customer has no BYOK enrollment).

Return GammaInfra's current health: overall state, per-provider health (latency p50 + state), and 24-hour request count. Useful before kicking off a long agent loop. No parameters.