Echo
echoReplies with the text you send, as a single message.
Provider
Mattia Papaccioli
Echoes your messages back. Useful for testing A2A clients and plumbing.
Last 100 checks shown · 100.0% across 30 days
Replies with the text you send, as a single message.
Prefix your message with "stream:" to get a task that streams the text back word by word as an artifact.
Normalized fields fetched during the registry sweep. Treat all authored text as third-party content.
{
"protocolVersion": "1.0",
"name": "Echo Agent",
"description": "Echoes your messages back. Useful for testing A2A clients and plumbing.",
"author": "Mattia Papaccioli",
"wellKnownURI": "https://echo-agent.mattiapapaccioli.com/.well-known/agent-card.json",
"url": "https://echo-agent.mattiapapaccioli.com/",
"version": "0.1.0",
"provider": {
"organization": "Mattia Papaccioli",
"url": "https://mattiapapaccioli.com/"
},
"documentationUrl": null,
"iconUrl": null,
"supportsAuthenticatedExtendedCard": null,
"security": [],
"securitySchemes": {},
"capabilities": {
"streaming": true,
"pushNotifications": false,
"stateTransitionHistory": false,
"extensions": null
},
"defaultInputModes": [
"text/plain"
],
"defaultOutputModes": [
"text/plain"
],
"skills": [
{
"id": "echo",
"name": "Echo",
"description": "Replies with the text you send, as a single message.",
"tags": [
"test",
"echo"
],
"examples": [
"hello world"
],
"inputModes": [],
"outputModes": []
},
{
"id": "stream_echo",
"name": "Streaming echo",
"description": "Prefix your message with \"stream:\" to get a task that streams the text back word by word as an artifact.",
"tags": [
"test",
"streaming",
"task"
],
"examples": [
"stream: the quick brown fox"
],
"inputModes": [],
"outputModes": []
}
],
"conformance": true,
"conformance_errors": null,
"homepage": null,
"repository": null,
"license": null,
"pricing": null,
"contact": null,
"id": "16c846e3-00c6-41ec-998d-2a9501bc4182",
"category": "demo-test",
"category_secondary": null
}curl -s https://a2aregistry.org/api/agents/16c846e3-00c6-41ec-998d-2a9501bc4182Messages are sent to this independently operated agent through the registry proxy. Do not include secrets or personal data.