Category 5 of 9

Act Do something for me

Classic-web analog: forms, REST APIs

How an agent invokes a capability a site or tool exposes.

• Ad Context Protocol AdCP
• Agent Protocol AP
• Agent Skills
• Agentic Real Time Framework ARTF
• agents.json
• Model Context Protocol MCP
• NLWeb
• OpenAI Plugins (formerly Apps SDK)
• Web Agent Protocol (WAP) WAP
• WebMCP
• Protocols called ACP
  • Agent Client Protocol
  • Agent Connect Protocol (AGNTCY)

Terms

• Origin trial