# BoltzPay

## Docs

- [Architecture](https://docs.boltzpay.ai/concepts/architecture.md): Package structure and dependency graph
- [Budget & Safety](https://docs.boltzpay.ai/concepts/budget-safety.md): How BoltzPay protects against overspending
- [How It Works](https://docs.boltzpay.ai/concepts/how-it-works.md): The payment flow behind agent.fetch()
- [Protocol Detection](https://docs.boltzpay.ai/concepts/protocol-detection.md): How BoltzPay detects MPP, x402, L402, and hybrid payment formats
- [Registry](https://docs.boltzpay.ai/concepts/registry.md): Live API endpoint registry at status.boltzpay.ai
- [Sessions](https://docs.boltzpay.ai/concepts/sessions.md): Streaming MPP sessions with payment channels
- [FAQ](https://docs.boltzpay.ai/faq.md): Frequently asked questions about BoltzPay.
- [Configuration](https://docs.boltzpay.ai/getting-started/configuration.md): Constructor options, wallets, budget, events, sessions, chains, and environment variables.
- [Installation](https://docs.boltzpay.ai/getting-started/installation.md): Install BoltzPay SDK, MCP server, or CLI.
- [Quickstart](https://docs.boltzpay.ai/getting-started/quickstart.md): Get your first paid API call working in under 2 minutes.
- [CLI](https://docs.boltzpay.ai/guides/cli.md): Use BoltzPay from the terminal or as a Python bridge.
- [Claude Desktop (MCP)](https://docs.boltzpay.ai/guides/mcp-claude-desktop.md): Give Claude the ability to discover and pay for APIs.
- [MCP Transport](https://docs.boltzpay.ai/guides/mcp-transport.md): Auto-pay third-party MCP servers that require payment.
- [CrewAI](https://docs.boltzpay.ai/integrations/crewai.md): Two paths to add BoltzPay to your CrewAI agents.
- [LangChain](https://docs.boltzpay.ai/integrations/langchain.md): 7 LangChain tools for discovering and paying for APIs from Python.
- [n8n](https://docs.boltzpay.ai/integrations/n8n.md): Community node for paying APIs directly in n8n workflows.
- [Vercel AI SDK](https://docs.boltzpay.ai/integrations/vercel-ai-sdk.md): Add BoltzPay tools to any Vercel AI SDK project in 2 lines.
- [BoltzPay](https://docs.boltzpay.ai/introduction.md): Open-source SDK that gives AI agents a fetch() that pays — x402, L402, and MPP.
- [Registry API](https://docs.boltzpay.ai/reference/registry.md): REST API reference for the BoltzPay endpoint registry.
- [SDK API](https://docs.boltzpay.ai/reference/sdk-api.md): Complete API reference for @boltzpay/sdk.

## OpenAPI Specs

- [openapi](https://docs.boltzpay.ai/api-reference/openapi.json)

## Optional

- [GitHub](https://github.com/leventilo/boltzpay)
- [npm](https://www.npmjs.com/package/@boltzpay/sdk)