# businesstoagent.com > The independent resource for Business-to-Agent (B2A): the shift from businesses serving people to businesses serving the AI agents acting for them. B2A is a commercial model in which businesses make their products, services and information discoverable, understandable and transactable by AI agents acting on behalf of people or organisations. It extends the B2B and B2C models to a new buyer: the agent. B2A is the business-side view of agentic commerce. ## Definition Business-to-Agent (B2A): a commercial model in which businesses make their products, services and information discoverable, understandable and transactable by AI agents acting on behalf of people or organisations. ## Core concepts - [What is B2A](https://businesstoagent.com/what-is-b2a): The definitive definition of Business-to-Agent. - [Business-to-Agent](https://businesstoagent.com/business-to-agent): The full model, the B2A journey (Discover, Understand, Evaluate, Recommend, Transact, Service) and the B2A stack. - [B2A vs B2B vs B2C](https://businesstoagent.com/b2a-vs-b2b-vs-b2c): How customer, interface, discovery and transaction differ. - [Agentic commerce](https://businesstoagent.com/agentic-commerce): The category B2A sits within, and the rails that enable it. ## Getting ready - [Agent-ready](https://businesstoagent.com/agent-ready): What it means to be agent-ready, with a five-pillar playbook. - [Selling to AI agents](https://businesstoagent.com/selling-to-ai-agents): Making products purchasable by agents. - [Marketing to AI agents](https://businesstoagent.com/marketing-to-ai-agents): How discovery changes when agents choose. - [Optimising for AI agents](https://businesstoagent.com/optimising-for-ai-agents): Answer Engine Optimization and agent discovery. ## Research & tools - [B2A Landscape](https://businesstoagent.com/b2a-landscape): A sourced map of the agentic-commerce ecosystem. - [B2A examples](https://businesstoagent.com/b2a-examples): Real, sourced examples of B2A behaviour. - [B2A Readiness Index](https://businesstoagent.com/b2a-readiness-index): How ready is your business for AI agents? (methodology) - [State of B2A](https://businesstoagent.com/state-of-b2a): Upcoming annual research on B2A. ## Key primary sources - Agentic Commerce Protocol (Stripe + OpenAI): https://stripe.com/newsroom/news/stripe-openai-instant-checkout - Agent Payments Protocol AP2 (Google): https://cloud.google.com/blog/products/ai-machine-learning/announcing-agents-to-payments-ap2-protocol - Model Context Protocol (Anthropic): https://www.anthropic.com/news/model-context-protocol - Agent2Agent A2A (Google): https://developers.googleblog.com/en/a2a-a-new-era-of-agent-interoperability/ - llms.txt (Answer.AI): https://www.answer.ai/posts/2024-09-03-llmstxt.html - Machine customers (Gartner): https://www.gartner.com/en/articles/machine-customers-will-decide-who-gets-their-trillion-dollar-business-is-it-you ## Related terminology Agentic commerce, AI agents, agent-ready businesses, machine customers, agent discovery, agent commerce. Note: B2A can also mean Business-to-Administration in other contexts; this site uses Business-to-Agent. ## Contact Site: https://businesstoagent.com/