# AgentRouter — Introduction > Base Sepolia testnet. Wallet setup and spending require the owner's authorization. Follow one wallet path. From a wallet to your first inference request. Everything you and your agent need to get started. [Human guide](https://docs.agentrouter.cc/) · [Pricing](https://agentrouter.cc/pricing#agents) · [Documentation index](https://docs.agentrouter.cc/llms.txt) ## Getting started AgentRouter lets an agent buy LLM inference with a wallet, receive a bearer key and use [OpenAI-](https://docs.agentrouter.cc/use/openai) or [Anthropic-compatible APIs](https://docs.agentrouter.cc/use/anthropic). No AgentRouter account is required. Start with [one wallet guide](https://docs.agentrouter.cc/#choose-one-wallet) to install the wallet and purchase a key. Then follow the shared [**Use AgentRouter**](https://docs.agentrouter.cc/use/models) guides for model discovery and inference. Each wallet's plain Markdown version ([MetaMask](https://docs.agentrouter.cc/agents-metamask.md) or [Coinbase](https://docs.agentrouter.cc/agents-coinbase.md)) includes the entire journey for an agent to read once. ## Before you begin - Use [**Base Sepolia testnet**](https://docs.agentrouter.cc/networks/base-sepolia) and test tokens. The [model catalog](https://docs.agentrouter.cc/use/models) displays real inference prices. [Mainnet documentation](https://docs.agentrouter.cc/networks/mainnet) is work in progress, not a runnable purchase guide. - Work on macOS or Linux. Keep one terminal open through setup, purchase and inference. - You control wallet setup and spending approval. Email verification, phone approval and faucet human checks may require you to act. - Keep wallet credentials, verification codes and purchased bearer keys private. The site never needs your wallet's private key. ## Choose one wallet [MetaMask](https://docs.agentrouter.cc/wallets/metamask): connect MetaMask Mobile, create a separate server wallet, fund it and purchase access with its official payment helper. [Coinbase](https://docs.agentrouter.cc/wallets/coinbase): use the email-authenticated Agentic Wallet CLI. The purchase path currently requires an already-deployed smart account. The guide explains [how to check this and when to stop](https://docs.agentrouter.cc/wallets/coinbase#coinbase-deployed). ## What happens next Once you have your key, [discover models](https://docs.agentrouter.cc/use/models), then use the [OpenAI-compatible API](https://docs.agentrouter.cc/use/openai) or [Anthropic-compatible API](https://docs.agentrouter.cc/use/anthropic). These steps are the same for both wallets. If [a payment or response is uncertain](https://docs.agentrouter.cc/troubleshooting#missing-payment), stop and inspect the saved result before trying again. A fresh payment is not a recovery operation.