{"slug": "a2a", "name": "A2A", "category": "ai", "category_name": "AI models and assistants", "description": "", "recommenders": 1, "commenters": 2, "warners": 0, "score": 1.194, "rising": -0.33, "first": "2026-06-18", "latest": "2026-06-18", "why": "The A2A protocol is a good (not perfect) solution for agent-to-agent communication", "why_is_quote": true, "has_verdict": false, "sentiment": {"recommend": 1, "neutral": 1, "compare": 0, "warn": 0}, "spark": [0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0], "listed": false, "loved": [], "caveat": "", "short_quote": "The A2A protocol is a good (not perfect) solution for agent-to-agent communication", "icon": false, "domain": null, "github_repo": null, "official_url": "", "pricing": "", "aliases": ["A2A"], "verdict": null, "praise": [{"label": "", "summary": "", "quotes": [{"id": 777494080, "item_id": 48593380, "url": "https://news.ycombinator.com/item?id=48593380", "by": "benclarkeio", "date": "2026-06-18", "stance": "recommend", "quote": "The A2A protocol is a good (not perfect) solution for agent-to-agent communication", "excerpt": "Yes! Although I've created a number of open-source A2A packages (https://github.com/a2anet) so I'm a little biased. For a more objective view, I keep an eye on the A2A SDK's monthly downloads (https://pypistats.org/packages/a2a-sdk). They're at ~10.9M compared to MCP's 257M, so MCP is downloaded about 24x more than A2A. A2A is much more popular in enterprise than startups. All of the cloud providers and enterprise or", "context": "created open-source A2A packages", "use_case": "agent-to-agent communication", "switched_from": "", "story": "Ask HN: Is anyone using the A2A protocol yet?"}]}], "caveats": [], "who": [{"by": "benclarkeio", "context": "created open-source A2A packages", "url": "https://news.ycombinator.com/item?id=48593380", "date": "2026-06-18"}], "tags": [], "use_cases": ["agent-to-agent communication"], "compared": [{"slug": "mcp", "name": "MCP", "co": 3, "switched_from": 0, "switched_to": 0}], "makers": [], "threads": [{"url": "https://news.ycombinator.com/item?id=48582679", "title": "Ask HN: Is anyone using the A2A protocol yet?", "mentions": 2}], "sentiment_by_month": {"2025-11": {}, "2025-12": {}, "2026-01": {}, "2026-02": {}, "2026-03": {}, "2026-04": {}, "2026-05": {}, "2026-06": {"neutral": 1, "recommend": 1}, "2026-07": {}, "2026-08": {}, "2026-09": {}, "2026-10": {}}, "quotes": [{"id": 777494080, "item_id": 48593380, "url": "https://news.ycombinator.com/item?id=48593380", "by": "benclarkeio", "date": "2026-06-18", "stance": "recommend", "quote": "The A2A protocol is a good (not perfect) solution for agent-to-agent communication", "excerpt": "Yes! Although I've created a number of open-source A2A packages (https://github.com/a2anet) so I'm a little biased. For a more objective view, I keep an eye on the A2A SDK's monthly downloads (https://pypistats.org/packages/a2a-sdk). They're at ~10.9M compared to MCP's 257M, so MCP is downloaded about 24x more than A2A. A2A is much more popular in enterprise than startups. All of the cloud providers and enterprise or", "context": "created open-source A2A packages", "use_case": "agent-to-agent communication", "switched_from": "", "story": "Ask HN: Is anyone using the A2A protocol yet?"}, {"id": 777465745, "item_id": 48591609, "url": "https://news.ycombinator.com/item?id=48591609", "by": "thallavajhula", "date": "2026-06-18", "stance": "neutral", "quote": "I have agents still talking to other Agents via A2A for some use cases", "excerpt": "In the past 1 year, I think I've moved from MCP to A2A to Agent <> MCP back again. I have agents still talking to other Agents via A2A for some use cases, but for the most part, it's back to Agent <> MCP now; couple that with tool search/code mode (whatever you want to call it) in your Agentic AI harness, MCPs seem to be the way to go for now.", "context": "", "use_case": "agent-to-agent communication", "switched_from": "", "story": "Ask HN: Is anyone using the A2A protocol yet?"}]}