Two different pipes
MCP (Anthropic, 2024) solves “agent-to-tools/data” — letting AI plug into your tools and data sources; A2A (Google, 2025) solves “agent-to-agent” — letting different AI agents call and divide work between each other. One brings external capability in, the other lets agents collaborate. Both are base protocols of the “agentic web,” now governed under the Linux Foundation.
Why people tie them to GEO
Because “your site used directly by agents” is the extended vision of GEO: not just being cited, but having your service called as a tool by an agent and slotted into its workflow. MCP servers and A2A Agent Cards are the interfaces for that direction — the next step that “agent discovery” standards like DNS-AID are trying to solve.
Honestly: still one layer away
MCP is mature and widely adopted; A2A is still pre-1.0. But for “content being cited by AI,” these two protocols are still one layer removed — they serve the “I have a tool/service to be used by agents” scenario, not the immediate priority of a pure content site. Treating them as synonyms for “being cited” is a misunderstanding.
What it means for you
Pure content sites: know they exist, don’t invest. Brands with a service or tool: this is the future interface for “being called by agents,” worth watching — but first confirm whether your service is even a fit to be tool-ified and worth it, then talk about wiring in. The direction matters; that doesn’t mean act now.
we actually started seeing our brand mentioned in answers after we cleaned up our about page and got a couple of decent writeups, so theres something to this even if its hard to measure. didnt do anything fancy
the part about schema markup is slightly off. the engines aren't 'reading' json-ld the way you imply, most of them rely on the rendered text + retrieval from an index. structured data helps disambiguate entities but it's not the primary signal. worth clarifying so people don't go spend a week on schema thinking it's the magic switch
good stuff. i run a small agency and we've been quietly doing this kind of work for clients for about a year, happy to compare notes with anyone here who's experimenting, no pitch just nerding out
wait so do i need to pay for chatgpt to get my shop to show up in it?? sorry if dumb question im not techy, i just run a small bakery and my niece said i should look into this
good read but the part about structured content felt a little thin. would love an actual before/after of a page that started getting picked up
Question — does this matter at all if you're b2b and your buyers aren't asking chatgpt about niche industrial parts? feels very consumer-brand coded. genuinely asking before i spend budget here
Genuine answer: B2B is affected too, just later in the funnel. Your buyer may still email you — but they often ask an AI a round of questions first and walk in with a shortlist already formed. You're not chasing consumer-style volume; you're making sure that when they do their homework, you exist in the answer.
ok but how is this any different from seo with extra steps? feels like every few years someone renames the same thing
Fair pushback 😅 It's not a replacement — clean site + good content is still the foundation, GEO just sits on top of it. The 'extra steps' are mostly about being the source an answer is built from, not one of ten blue links it ignores. Not enemies, same foundation.
ok but how is this any different from seo with extra steps? feels like every few years someone renames the same thing and sells it back to us
my dog could write better meta descriptions than half the sites that DO get cited, so theres hope for all of us
this is the third article ive read this week saying basically the same stuff and none of them tell you what to actually DO on monday morning
skeptical. half of these "get cited by ai" takes are just people noticing the ai already knew about big brands and pretending they cracked a code
as a small business owner i'm tired lol. just got the hang of google reviews and now there's a whole new thing
doesnt work for me
saved this. been trying to figure out why we show up on google fine but the AI answers never mention us. makes more sense now