CAIN-42 CAIN StudioThe niche: security for agent-to-agent (A2A) collaboration
Companies whose AI agents talk to other companies' agents, and platforms that host many agents.
Why this niche exists now
- The A2A protocol was published in 2025 and is being adopted.
- Agent cards are the first thing an attacker would forge.
What people use today, and where it falls short
| What teams do today | Where it falls short |
|---|---|
| Trust the card as published | Anyone can copy and edit it. |
| Manual allow-lists | Do not scale across companies. |
What makes A2A Guard different
- Signed at registration.
- One-word changes caught.
- Revocation supported.
How big is the opportunity?
Do not quote market-size statistics on a call. Most published figures are surveys or vendor estimates, and a smart buyer will ask for the source. Size the opportunity per prospect instead, with these questions:
- Do your agents talk to other companies' agents?
- How do they decide whom to trust?
If the honest answers are "no" or "not yet", they are not a buyer today. Note it and move on; that is good selling, not failure.
Explain the niche in 30 seconds
Companies whose AI agents talk to other companies' agents, and platforms that host many agents.
A2A Guard makes AI agents' business cards tamper-proof: change one word and the card is rejected.
Practise saying this out loud until you can do it without reading. Then say it in your own words.
Words your buyers use
These are the phrases people in this niche type into search engines and use in posts and job ads. Use them to find prospects (page 3) and to talk their language:
A2A protocol agent to agent agent card multi-agent trust
Sell it together with
Buyers rarely have just one problem. When this product fits, these often fit too:
| Product | Why it goes together |
|---|---|
| Agent-ID | per-agent permissions |
| Swarm KEYSTONE | audits the whole agent network |
| Offline verifiers (NULLIUS) | how signatures are checked |
Rule: open with one product. Mention a second only after the first is agreed.
Next: who buys and where to find them →
FIRME AI CORPORATION · CAIN-42 is a Byzantine trust fabric. Numbers marked "our own check" were run by us, not by an independent party. Nothing on these pages is a certification.