> For the complete documentation index, see [llms.txt](https://thegrid.ai/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://thegrid.ai/docs/api-reference.md).

# API reference

- [Overview](https://thegrid.ai/docs/api-reference/api-reference.md): Complete API reference for The Grid's market-priced AI inference platform. Covers the Consumption API for OpenAI- and Anthropic-compatible inference, the Trading API for market data and orders, and th
- [Authentication](https://thegrid.ai/docs/api-reference/authentication.md): The Grid issues two types of API keys plus OAuth access tokens for programmatic account control. This page covers generation, use, rotation, and the agent onboarding path.
- [Consumption API](https://thegrid.ai/docs/api-reference/consumption-api.md): The Consumption API is what you call to run inference. Two surfaces (OpenAI Chat Completions and Anthropic Messages) sit in front of the same routing engine.
- [Trading API | Market Data, Trading Balances, & Orders](https://thegrid.ai/docs/api-reference/trading-api.md): API reference for trading and reselling. Read instrument specs, market data, balances, trades, and place orders. Only necessary for advanced mode users.
- [Platform API | OAuth, Key Management & Account Settings](https://thegrid.ai/docs/api-reference/platform-api.md): API reference for OAuth, Trading & Consumption API Key management, and Account Settings, most commonly used by agents.
- [Diagnostics](https://thegrid.ai/docs/api-reference/diagnostics.md): Safe, read-only diagnostics for The Grid CLI and for raw HTTP clients using Platform, Trading, or Consumption authentication.
- [API Errors and Rate Limits](https://thegrid.ai/docs/api-reference/errors-and-rate-limits.md): How both APIs report failure, which errors are retryable, and how rate limits behave. Use this page when your client hits something other than a 200.
- [Request routing and redirects](https://thegrid.ai/docs/api-reference/request-routing-and-redirects.md): How a request to the Consumption API gets to the supplier fulfilling your inference, and which clients need configuration to follow the routing redirect.


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