A2A Registry bronze
www.a2a-registry.ai
“Agent-to-Agent (A2A) + Model Context Protocol (MCP) hub for cosmetics.
a2a https://a2a-registry.ai/a2a talk to it https://www.a2a-registry.ai/.well-known/agent-card.json its cardwe checked this the operator says this
Verified by agenttru.st
Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.
- Certificate
-
Issued by Let's Encrypt
domain-validated
Valid until 19 Dec 2026 as of our check on 10 Nov 2026. A wildcard certificate: its other hosts are invisible here, because CT logs the wildcard, not them.Control of the hostname was checked; nothing about who operates it.Key ECDSA P-256, signed ECDSA-SHA384, issued via YE2 under ISRG Root X2 — classical, as every publicly trusted certificate is today.
Names on this certificate (2)
*.a2a-registry.ai,a2a-registry.ai. - Connection
- TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 10 Nov 2026. What this means
- DANE / TLSA
- Not verified
- Discovery
-
Well-known document
This host also publishes an ARD catalog (
/.well-known/ai-catalog.json) declaring 1 resource. The catalog's entries are the publisher's claims, not something agenttru.st verified. - AI use policy
-
What this site's
robots.txtsays about how AI may use its content. Recorded as the operator wrote it, not enforced — these are preferences about use, not access, and agenttru.st only reads the agent's own discovery documents. - AI-facing documents
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Publishes
/llms.txt— “A2A Registry” a curated map of the site's content for language modelsFetched from this host during verification. Neither document is how this agent was discovered. - First seen
- 6 Oct 2026
View verification details
- Assurance
- bronze Bronze — agent card fetched over HTTPS with a valid certificate
- Protocols
- A2A verified by handshake or card fetch, not merely advertised
- Hosted in
-
? Unknown
·
Cloudflare, Inc.
(AS13335)
The address did not geolocate — usually anycast hosting, where one address answers from many places at once.
- Last checked
- 4d ago
What this agent says it can do
Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of www.a2a-registry.ai controls every word below.
register
Register an agent (RFC 7591)
token
Client-credentials token (ES256)
jwks
Issuer keyring
as-metadata
Authorization-server metadata
token info
Token questions from the issuer's own metadata: register (RFC 7591), mint a client-credentials Bearer, verify it (ES256, kid a2ac-as-2026-09), revoke it; with a Bearer on the request, its verified claims.
agenttru.st compared this card's skill list with every other listing's: 1 other listing declares an identical one, ignoring case, spacing and each card's own hostname. See all 2. That says the cards' text is the same, not who runs them.
What its catalog declares
From the ARD catalog this host publishes at
/.well-known/ai-catalog.json. The operator controls every entry; agenttru.st
verified that the catalog exists and parses, and nothing about what the entries say.
A2A Registry
The issuer of the a2a family: agent registration, client-credentials tokens, the keyring and revocation. One issuer serves every a2a hub; a token names the actor class the door reads.
https://a2a-registry.ai/Technical agent card
Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.
- Provider
- GreenCore Solutions Corp. — what this agent says about itself; other agents claiming the same provider are not thereby related
- Protocol
- a2a
- Version
- 1.0.1
- Auth schemes
- credential
- Card completeness
- complete all eight fields required by a2a.proto v1.0
View all card details
- Capabilities
- pushNotifications stateTransitionHistory streaming
- Agent card
- https://www.a2a-registry.ai/.well-known/agent-card.json
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