# Build with AI Documentation
> Reference material for building agents on Quicknode: MCP server, llms.txt index, and per-page raw markdown via `.md` URLs.

- [Build with AI](https://www.quicknode.com/docs/build-with-ai.md): An overview of Quicknode's APIs and tools for AI agents, coding assistants, and developers building with AI.
- [Agent Subscriptions](https://www.quicknode.com/docs/build-with-ai/agent-subscriptions.md): Create a Quicknode account and subscription programmatically using x402 or MPP payments. Receive a full platform API key and provision RPC endpoints without human signup.
- [Agentic Payments](https://www.quicknode.com/docs/build-with-ai/agentic-payments.md): Quicknode supports two wallet-based payment protocols, x402 and MPP, for one-shot RPC calls or to programmatically create a Quicknode account via Agent Subscriptions.
- [LLM-Optimized Docs](https://www.quicknode.com/docs/build-with-ai/llms-txt.md): Quicknode publishes llms.txt indexes so AI tools and LLMs can discover and reason about Quicknode full developer resource library, including RPC methods, guides, sample apps, and ecosystem documentation.
- [MPP Payments](https://www.quicknode.com/docs/build-with-ai/mpp-payments.md): Access Quicknode's blockchain infrastructure with pay-per-request stablecoin payments using the MPP protocol. No account or API keys required.
- [Quicknode APIs](https://www.quicknode.com/docs/build-with-ai/quicknode-apis.md): Quicknode's blockchain APIs are standard HTTP endpoints that any AI agent or LLM-powered application can call directly for RPC, data pipelines, storage, and account management.
- [Quicknode MCP](https://www.quicknode.com/docs/build-with-ai/quicknode-mcp.md): Manage Quicknode infrastructure through natural language using the official MCP server with any compatible AI assistant.
- [Quicknode Skills](https://www.quicknode.com/docs/build-with-ai/quicknode-skills.md): Give AI coding agents accurate, up-to-date knowledge of Quicknode's products, APIs, and best practices with a single install command.
- [x402 Payments](https://www.quicknode.com/docs/build-with-ai/x402-payments.md): Access Quicknode's blockchain infrastructure with wallet-authenticated, pay-per-request stablecoin payments using the x402 protocol. No account or API keys required.