AI agent
An AI agent (or software agent) is an autonomous or semi-autonomous program that pursues a user-delegated goal by planning across steps, reading external state, and invoking tools or network endpoints without a human driving each click. In the agentic web, also known as agent, software agent, autonomous agent, web agent, it is implemented or referenced by Model Context Protocol, Agent2Agent Protocol, Agentic Resource Discovery, Web Bot Auth HTTP Message Signatures.
An AI agent (or software agent) is an autonomous or semi-autonomous program that pursues a user-delegated goal by planning across steps, reading external state, and invoking tools or network endpoints without a human driving each click. On the agentic web, an external agent interacts with a site’s public machine surface across nine lifecycle steps: discovering capabilities (ARD, MCP Server Cards), proving identity (Web Bot Auth), checking permissions (robots.txt, Content Signals), reading structured content (llms.txt), invoking actions (MCP), coordinating with peers (A2A), paying (x402, AP2), presenting UI (MCP Apps), and leaving verifiable audit records.
Instances
- Agent Community / Open Agent Registry (AID) · Observed 2026-10-23 · venue
- agent-ready.dev Conformance Scanner Agent · Observed 2026-10-23 · agent
- agenticweb.wiki Reference Agent and MCP Server · Observed 2026-10-23 · agent
- Cloudflare Web Bot Auth Key Directory · Observed 2026-10-23 · authority
- Coinbase AgentKit and CDP Server Wallets · Observed 2026-10-23 · authority
- Kakao PlayMCP Gateway and Toolbox Registry · Observed 2026-10-23 · venue
- Mnemom Cryptographic Agent Trust Service · Observed 2026-10-23 · authority
- Neuronto Agentic Web Index · Observed 2026-10-23 · venue
- Salespeak B2B Buyer Concierge Agent · Observed 2026-10-23 · agent
- WorkOS AuthKit and Agent Auth · Observed 2026-10-23 · authority
- GitHub Copilot Coding Agent · Observed 2026-08-29 · harness
- Goose (Block) · Observed 2026-08-29 · harness
See also
References
- https://developers.googleblog.com/developers-guide-to-ai-agent-protocols/ (2026-03-18) REPORTED
- https://aaif.io (2025-12-09) REPORTED
Frequently asked questions
- What is AI agent?
- An AI agent (or software agent) is an autonomous or semi-autonomous program that pursues a user-delegated goal by planning across steps, reading external state, and invoking tools or network endpoints without a human driving each click. In the agentic web, also known as agent, software agent, autonomous agent, web agent, it is implemented or referenced by Model Context Protocol, Agent2Agent Protocol, Agentic Resource Discovery, Web Bot Auth HTTP Message Signatures.
- Which agentic web standards use AI agent?
- AI agent is used or referenced by Model Context Protocol, Agent2Agent Protocol, Agentic Resource Discovery, Web Bot Auth HTTP Message Signatures. See https://agenticweb.wiki/terms/ai-agent/ for sourced definitions and verified implementations.