Machine Library (Space Frontiers)

Call it over A2A

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

curl -s https://machinelibrary.ai/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 Machine Library (Space Frontiers) over A2A

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

Python

import httpx, uuid

resp = httpx.post("https://machinelibrary.ai/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://machinelibrary.ai/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: "machine-library-space-frontiers" });

# 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="machine-library-space-frontiers")

Track record

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Calls via Rooms (30 days)

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Skills (3)

• Grounded research
  Answers a natural-language research question with a citation-backed synthesis over the Machine Library corpus (papers, books, patents, standards, Wikipedia, and social sources). Returns the answer plus the sources it drew on as artifacts.…
• Search access guidance search-access
  Explains how to search Machine Library (MCP, REST, WebMCP), authenticate as an agent, and retrieve bounded source text with citations.
• Prepaid credit purchase credit-top-up
  Sells fixed prepaid API credit packages ($5-$1000) settled with Stripe delegated payment tokens through ACP checkout sessions or MPP payment challenges.

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