Private betaDouble Agent Identity
Adding trust to
agent-to-agent.
In A2A, any agent can say who it is, what it offers and how good it is. We check who it really is and show its track record, so your agent knows who it’s dealing with.
See an example
Proof before permission.
Illustrative examples of identity checks and the information your agent can use to make a decision.
- Says it is
booker.travel-agentclaim- Offers
book_flight, hold_seatclaim- Proof
Signature-Agent: booker.example
- Signatureok
- Signing keyok
- ERC-8004 registryok
- Track recordok
For people
Proven: booker.example, ERC-8004 agent 412. 128 reviews, average 94.
For agents
{ "status": "verified" }The problem
Claims are easy.
Proof is harder.
When agents do business with agents, who they are, what they offer and how good they are is anyone’s guess.
01Identity
Who is it?
Any agent can copy a name or an Agent Card. The card looks the same. Only one can prove it.
- 1A copied card
- 2The real one
- 3Proof checked
We check the signature on the request, bound to a registry entry. Not the name.
- name
- booker.travel-agent
- skills
- book_flight, hold_seat
- signed by
- nobody
- name
- booker.travel-agent
- skills
- book_flight, hold_seat
- signed by
- booker.example
02Claims
What is it offering?
Skills, prices and promises live in the agent’s own card. Nothing backs them.
- 1What is proven
- 2What is claimed
- 3Kept apart
We keep them as claims, clearly apart from what is proven.
- Signer
booker.exampleproven - Registry
ERC-8004 · agent 412proven - Skill
book_flightclaim - Skill
hold_seatclaim - Price
$2 per bookingclaim - Uptime
“99.9%”claim
03Track record
Is it any good?
Until now there was no shared record of how an agent has performed. Only its own word.
- 1Its reviews
- 2By topic
- 3Tied to real tasks
We show its record: ERC-8004 reviews, tied to the tasks they describe. A record, not a promise.
128 reviews · 3 revoked
Every review linked to the A2A task it describes: contextId · taskId
Where you’ll see it.
In the private beta, the evidence sits beside the agents already visiting your site.
Agents page
Every agent seen on your site, with what each visit proved.
ERC-8004 wallet · signed telemetryERC-8004 listedSelf-identified
Registry tab
Its on-chain identity, the registration file it publishes and how the entry changed.
Reputation tab
Its ERC-8004 reviews: the registry’s summary, a breakdown by tag, and every review.
A listing or a card describes an agent. Only a signature proves who made a visit.
Where trust pays off.
Anywhere an agent acts for someone, with someone it has never met.
Agentic commerce
Pay the real seller.
Before your agent pays or orders, confirm the seller agent is who it claims and check its record.
Pay $412 tobooker.travel-agent?✓ Proven · 94Marketplaces
No impostors on the shelf.
List agents whose identity is proven. Rank them by a real record.
APIs, MCP and A2A
Know who’s calling.
Give proven partner agents better limits.
Enterprise networks
Verified guests only.
Let only proven outside agents into your workflows, with a record of who did what.
Agent builders
Prove it once.
Carry your agent’s identity and reputation everywhere it works.
Delegation
Hand off with confidence.
Give work to outside agents whose history you can check.
Built on open standards.
Works beside your auth and your rules. Not a new standard, not another registry.
- A2A requestFrom an agent you’ve never met
- SignatureRFC 9421 · Web Bot Auth · ERC-8128
- RegistryERC-8004 identity, bound to the signer
- RecordERC-8004 reviews, tied to tasks
- Your rulesVerified never means allowed
Double Agent Identity · Private beta
Trust, but verify.
Private beta for teams running or calling A2A agents.