{
 "url": "https://agenticweb.wiki/compare/a2a-vs-anp/",
 "title": "Agent2Agent Protocol vs Agent Network Protocol",
 "description": "Agent2Agent Protocol vs Agent Network Protocol: The map lists them as complementary: sites and agents commonly implement both. Side-by-side step…",
 "markdown_url": "https://agenticweb.wiki/compare/a2a-vs-anp/index.md",
 "markdown": "# Agent2Agent Protocol (A2A) vs Agent Network Protocol (ANP)\n\nThe map lists them as complementary: sites and agents commonly implement both.\n\n[6 Coordinate](/category/coordinate/) [Agent2Agent Protocol](/protocols/a2a/) · [6 Coordinate](/category/coordinate/) [Agent Network Protocol](/protocols/anp/)\n\n|  | [Agent2Agent Protocol](/protocols/a2a/) A2A | [Agent Network Protocol](/protocols/anp/) ANP |\n| --- | --- | --- |\n| Lifecycle step | 6 Coordinate: Talk to another agent | 6 Coordinate: Talk to another agent |\n| Answers | How do two independent agents, built on different frameworks, discover each other and delegate a task to completion? | How can decentralized agents from different platforms authenticate, discover, and message each other without a central registry? |\n| Governed by | Linux Foundation (Technical Steering Committee: AWS, Cisco, Google, IBM Research, Microsoft, Salesforce, SAP, ServiceNow); Agentic AI Foundation (AAIF) since 17 August 2026 | Community-led open-source project (agent-network-protocol GitHub org) |\n| Status (issuer's words) | Stable, v1.0.1 | Released v1.2 (core suite); meta-protocol (ANP-06) remains draft/unreleased |\n| Version | 1.0.1 (2026-05-28) | v1.2 (2026-09-24) |\n| Form / transport | endpoint | well-known file |\n| Found at | /.well-known/agent-card.json | /.well-known/agent-descriptions |\n| Implementation | multi-implementation — 150+ supporting organizations, claimed by the Linux Foundation on 9 April 2026 (https://www.linuxfoundation.org/press/a2a-protocol-surpasses-150-organizations-lands-in-major-cloud-platforms-and-sees-enterprise-production-use-in-first-year). Card-version censuses are separate measurements, kept with their frames and not averaged. Agenstry 2026-09-01 (https://agenstry.com/blog/state-of-the-agent-card): of 1,910 cards declaring protocolVersion, 65.5% (1,252) are 0.3.x and 25.5% (488) are 1.0.x. Emissar 2026-10-02 (https://emissar.ai/learn/a2a-adoption-2026): 276 cards on the Tranco top 1M (205 in v1.0 shape, 71 in v0.3 shape, 0 signed, 0 in the top 1,000 domains). APIs.io / Kin Lane 2026-09-21 (https://apievangelist.com/2026/09/21/a2a-adoption-is-421-of-27840-and-most-of-them-arrived-with-the-card/): 421 parseable cards out of 4,718 hosts probed (27,840 providers). rStation 2026-10-12 (https://rstation.ai/problems/ai_agent/papers/1): 661 cards on 2,164 x402 seller hosts (189 pass their attributed version and fail a check that assumes 1.0). | shipping |\n| Evidence | 11 verified, 2 reported | 3 verified |\n| Primary use case | Let agents talk to other agents | Let agents talk to other agents |\n| Last verified | 2026-10-23 (current) | 2026-10-23 (current) |\n| Specification | [https://a2a-protocol.org/latest/specification/](https://a2a-protocol.org/latest/specification/) | [https://github.com/agent-network-protocol/AgentNetworkProtocol](https://github.com/agent-network-protocol/AgentNetworkProtocol) |\n\n## When to use which\n\n- Choose Agent2Agent Protocol when your question is “How do two independent agents, built on different frameworks, discover each other and delegate a task to completion?” and you accept its maturity: status \"Stable, v1.0.1\", implementation multi-implementation (150+ supporting organizations, claimed by the Linux Foundation on 9 April 2026 (https://www.linuxfoundation.org/press/a2a-protocol-surpasses-150-organizations-lands-in-major-cloud-platforms-and-sees-enterprise-production-use-in-first-year). Card-version censuses are separate measurements, kept with their frames and not averaged. Agenstry 2026-09-01 (https://agenstry.com/blog/state-of-the-agent-card): of 1,910 cards declaring protocolVersion, 65.5% (1,252) are 0.3.x and 25.5% (488) are 1.0.x. Emissar 2026-10-02 (https://emissar.ai/learn/a2a-adoption-2026): 276 cards on the Tranco top 1M (205 in v1.0 shape, 71 in v0.3 shape, 0 signed, 0 in the top 1,000 domains). APIs.io / Kin Lane 2026-09-21 (https://apievangelist.com/2026/09/21/a2a-adoption-is-421-of-27840-and-most-of-them-arrived-with-the-card/): 421 parseable cards out of 4,718 hosts probed (27,840 providers). rStation 2026-10-12 (https://rstation.ai/problems/ai_agent/papers/1): 661 cards on 2,164 x402 seller hosts (189 pass their attributed version and fail a check that assumes 1.0).).\n- Choose Agent Network Protocol when your question is “How can decentralized agents from different platforms authenticate, discover, and message each other without a central registry?” and you accept its maturity: status \"Released v1.2 (core suite); meta-protocol (ANP-06) remains draft/unreleased\", implementation shipping.\n\nGuidance is derived from the two records (question, status, implementation, prerequisites, pairings), not from opinion. Each record's page carries its numbered references.\n\n## Read the full articles\n\n- [Agent2Agent Protocol](/protocols/a2a/): How do two independent agents, built on different frameworks, discover each other and delegate a task to completion?\n- [Agent Network Protocol](/protocols/anp/): How can decentralized agents from different platforms authenticate, discover, and message each other without a central registry?\n\nAsk the MCP server to compare any two: the compare-protocols prompt, or get on both ids. [Connect](/connect/).\n\n[a2a.json](/data/protocols/a2a.json) · [anp.json](/data/protocols/anp.json) · [Markdown](/compare/a2a-vs-anp/index.md)\n"
}