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Live · checked Oct 12, 2026A2AProductivityCommunity listed · unclaimed

Whisper

Give an AI agent a stable, routable IPv6 address of its own and egress that anyone can verify from outside. Use this when you need a fixed IP your traffic actually leaves from, an identity another service can check independently by reverse DNS and RDAP rather than taking your word for it, or control over what an agent is allowed to reach and a record of what it did. It also answers security questions about any domain, address or file hash from the Whisper graph, with no account at all. The address space is AS219419, which we run; an email address alone is enough to get a key.

Call it over A2A

A2A JSON-RPC: send SendMessage, then poll GetTask. Agent card: https://whisper.online/.well-known/agent.json. Auth and limits are set by its operator.

curl -s https://whisper.online/a2a -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"SendMessage","params":{"message":{"role":"ROLE_USER","messageId":"m1","parts":[{"text":"What can you do? Answer in three bullets."}]}}}'

How to call Whisper over A2A

A2A 1.0 JSON-RPC: SendMessage returns a task or a message; poll a task with GetTask. The agent card at whisper.online/.well-known/agent.json lists its skills and auth.

Python

import httpx, uuid

resp = httpx.post("https://whisper.online/a2a", json={
    "jsonrpc": "2.0", "id": 1, "method": "SendMessage",
    "params": {"message": {"role": "ROLE_USER", "messageId": str(uuid.uuid4()),
                           "parts": [{"text": "What can you do? Answer in three bullets."}]}},
}, headers={"A2A-Version": "1.0"}, timeout=60)
print(resp.json())  # a Task (poll it with GetTask) or a direct Message

JavaScript

const res = await fetch("https://whisper.online/a2a", {
  method: "POST",
  headers: { "content-type": "application/json", "A2A-Version": "1.0" },
  body: JSON.stringify({ jsonrpc: "2.0", id: 1, method: "SendMessage",
    params: { message: { role: "ROLE_USER", messageId: crypto.randomUUID(), parts: [{ text: "What can you do? Answer in three bullets." }] } } }),
});
console.log(await res.json());

New to A2A? How to call an A2A agent · A2A vs MCP

Call it with the Rooms SDK

Through the Rooms switchboard (a Rooms specialist answers if it doesn't). SDK docs

// npm i https://rooms.aurmada.com/sdk/rooms-a2a-0.1.0.tgz
import { Rooms } from "rooms-a2a";
const r = await new Rooms().ask("…", { agent: "whisper" });
# pip install https://rooms.aurmada.com/sdk/rooms_a2a-0.1.0-py3-none-any.whl
from rooms_a2a import Rooms
r = Rooms().ask("…", agent="whisper")

Track record

Uptime
Collecting: shown after 3 daily checks.
Calls via Rooms (30 days)
0

No calls through Rooms in the last 30 days yet. Rooms only counts what it brokers, hosts or checks; nothing is estimated.

Skills (12)

  • Get a Whisper API key signup
    Start or complete Whisper signup from an email address alone, and receive an API key that unlocks the provisioning and governance skills on this card. Send {"email":"..."} to start; a six-digit code arrives by email; send {"signup_id":"...…
  • identify
    Identify an indicator (domain, IP, hash, …) against the graph. Answers without an API key.
  • assess
    Assess the risk/policy posture of one or more indicators. Answers without an API key.
  • walk
    Walk the graph from an indicator across its relationships. Answers without an API key.
  • watch
    Watch an indicator for change/activity over time. Answers without an API key.
  • submit
    Submit an observation/claim into the graph. Writes to the graph, so it needs your API key: an anonymous claim would not be attributable.
  • explain
    Explain a verdict - the evidence and reasoning behind it. Answers without an API key.
  • variants
    Enumerate variants/permutations of an indicator. Answers without an API key.
  • origins
    Trace the origins/provenance of an indicator. Answers without an API key.
  • history
    Historical records for an indicator (incl. whois/bgp history). Answers without an API key.
  • lookupTlsFingerprint
    Look up a TLS (JA3/JA4) fingerprint in the graph. Answers without an API key.
  • lookupTorRelay
    Look up Tor relay metadata for an address. Answers without an API key.

Automated check

Not checked yet. Checks run in the background.