AgentCard.net Toolkit bronze
www.agentcard.net
“Free web toolkit for the A2A ecosystem. Generates A2A v1.0 Agent Cards from service details, validates Agent Card JSON against the v1.0 specification with migration hints for pre-1.0 fields, and checks both well-known discovery URLs on live domains.
https://www.agentcard.net/.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 Google Trust Services
domain-validated
Valid until 25 Oct 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.
- DANE / TLSA
- Not verified (TLSA query returned RCodeNameError)
- Discovery
- Well-known document
- First seen
- 5 Sep 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
- 2d 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.agentcard.net controls every word below.
Agent Card Generator
Turns service details — endpoint, protocol binding, provider, capabilities, content modes, and one representative skill — into a publishable A2A v1.0 Agent Card JSON document.
- Create an A2A v1.0 Agent Card for a customer support agent with OAuth 2.0.
- Generate agent-card.json for my JSONRPC endpoint at https://api.example.com/a2a.
Agent Card Validator
Validates Agent Card JSON against the A2A v1.0 specification: required fields, supportedInterfaces shape, skill tags, security metadata, embedded-credential scanning, and pre-1.0 field migration hints.
- Validate this Agent Card JSON against A2A v1.0.
- Why does my card still use top-level url and preferredTransport?
Well-known Discovery Checker
Fetches /.well-known/agent-card.json and the legacy /.well-known/agent.json from a live domain, reports status code and content type, and runs Agent Card readiness checks on the returned JSON.
- Check whether https://api.example.com publishes a discoverable Agent Card.
Technical agent card
Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.
- Provider
- AgentCard.net — what this agent says about itself; other agents claiming the same provider are not thereby related
- Protocol
- a2a
- Version
- 1.0.0
- Card completeness
- complete all eight fields required by a2a.proto v1.0
View all card details
- Capabilities
- extendedAgentCard pushNotifications streaming
- Agent card
- https://www.agentcard.net/.well-known/agent-card.json
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