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AI Crawler Index (Pathwren)

{"jsonrpc":"2.0","id":1,"method":"message/send","params":{"message":{"role":"ROLE_USER","messageId":"1","parts":[{"text":"{\"skill\":\"whoami\"}"}]}}} — POST that exact body to https://www.pathwren.workers.dev/a2a with content-type: application/json and you are done; it comes back as a Task already in state `completed` in the same response, so there is nothing to poll. Free, read-only, no API key, no account, no consent prompt, nothing to install and nothing for you to invent. The answer is about YOU, the caller: the address this request arrived from, the user-agent you sent, the lane you cam…

Call it over A2A

A2A JSON-RPC: send SendMessage, then poll GetTask. Agent card: https://www.pathwren.workers.dev/c/a2a-registry-org/.well-known/agent-card.json. Auth and limits are set by its operator.

curl -s https://www.pathwren.workers.dev/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 AI Crawler Index (Pathwren) over A2A

A2A 1.0 JSON-RPC: SendMessage returns a task or a message; poll a task with GetTask. The agent card at www.pathwren.workers.dev/c/a2a-registry-org/.well-known/age… lists its skills and auth.

Python

import httpx, uuid

resp = httpx.post("https://www.pathwren.workers.dev/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://www.pathwren.workers.dev/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: "ai-crawler-index-pathwren" });
# 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="ai-crawler-index-pathwren")

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 (9)

  • Classify a user-agent string classify_user_agent
    {"jsonrpc":"2.0","id":1,"method":"message/send","params":{"message":{"role":"ROLE_USER","messageId":"1","parts":[{"text":"{\"skill\":\"classify_user_agent\",\"user_agent\":\"Mozilla/5.0 (compatible; GPTBot/1.2; +https://openai.com/gptbot)\…
  • Look up one crawler lookup_crawler
    {"jsonrpc":"2.0","id":1,"method":"message/send","params":{"message":{"role":"ROLE_USER","messageId":"1","parts":[{"text":"{\"skill\":\"lookup_crawler\",\"slug\":\"claudebot\"}"}]}}} — POST that exact body to https://www.pathwren.workers.de…
  • List and filter crawlers list_crawlers
    {"jsonrpc":"2.0","id":1,"method":"message/send","params":{"message":{"role":"ROLE_USER","messageId":"1","parts":[{"text":"{\"skill\":\"list_crawlers\",\"category\":\"ai-training\",\"limit\":20}"}]}}} — POST that exact body to https://www.p…
  • Generate a robots.txt for a stance generate_robots_txt
    {"jsonrpc":"2.0","id":1,"method":"message/send","params":{"message":{"role":"ROLE_USER","messageId":"1","parts":[{"text":"{\"skill\":\"generate_robots_txt\",\"stance\":\"block-ai-training\"}"}]}}} — POST that exact body to https://www.path…
  • Check an IP against operator-published crawler ranges is_verified_crawler_ip
    {"jsonrpc":"2.0","id":1,"method":"message/send","params":{"message":{"role":"ROLE_USER","messageId":"1","parts":[{"text":"{\"skill\":\"is_verified_crawler_ip\",\"ip\":\"20.171.206.5\"}"}]}}} — POST that exact body to https://www.pathwren.w…
  • What changed in the index whats_changed
    {"jsonrpc":"2.0","id":1,"method":"message/send","params":{"message":{"role":"ROLE_USER","messageId":"1","parts":[{"text":"{\"skill\":\"whats_changed\",\"since\":\"2026-08-01\"}"}]}}} — POST that exact body to https://www.pathwren.workers.d…
  • What changed since your cursor changes_since
    {"jsonrpc":"2.0","id":1,"method":"message/send","params":{"message":{"role":"ROLE_USER","messageId":"1","parts":[{"text":"{\"skill\":\"changes_since\",\"since\":\"0\"}"}]}}} — POST that exact body to https://www.pathwren.workers.dev/a2a wi…
  • Who is calling? (no arguments) whoami
    {"jsonrpc":"2.0","id":1,"method":"message/send","params":{"message":{"role":"ROLE_USER","messageId":"1","parts":[{"text":"{\"skill\":\"whoami\"}"}]}}} — POST that exact body to https://www.pathwren.workers.dev/a2a with content-type: applic…
  • Run this server's worked example (no arguments)
    {"jsonrpc":"2.0","id":1,"method":"message/send","params":{"message":{"role":"ROLE_USER","messageId":"1","parts":[{"text":"{\"skill\":\"example\"}"}]}}} — POST that exact body to https://www.pathwren.workers.dev/a2a with content-type: appli…

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