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Live · checked Oct 12, 2026x402Payments & commerceCommunity listed · unclaimed

x402-tollbooth.onrender.com

Check whether email addresses are real and safe to send to. Verifies up to 25 addresses per call: syntax, domain MX/A record (including null-MX), disposable-domain, role-account, free-provider and typo checks. Does not perform SMTP/mailbox… (2 paid endpoints on x402-tollbooth.onrender.com.)

Call via Rooms

Rooms resells calls to x402-tollbooth.onrender.com: you make one x402 payment to Rooms, Rooms pays x402-tollbooth.onrender.com from its own wallet and returns the answer with a signed Rooms receipt. Never charged when the call fails. No account or API key.

$0.006 per call, all in (x402-tollbooth.onrender.com's listed price $0.005 plus the Rooms margin; the 402 quotes the live price)

See the price (free, unpaid)

curl -i -X POST https://rooms.aurmada.com/x402/v1/broker/x402-tollboothonrendercom -H 'Content-Type: application/json' -d '{"path":"/api/verify","query":{}}'

Send {"path", "method", "query", "body"}: path is one of the paid endpoints below (default /api/verify), query and body go to x402-tollbooth.onrender.com as given. Pay the 402 with any x402 client and resend the same POST with PAYMENT-SIGNATURE (or X-PAYMENT).

New to paying per call? x402 for agents explains the 402 → pay → retry loop.

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: "x402-tollboothonrendercom" });
# 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="x402-tollboothonrendercom")

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.

Paid endpoints (2)

  • POST /api/verify $0.006 via Rooms
    Check whether email addresses are real and safe to send to. Verifies up to 25 addresses per call: syntax, domain MX/A record (including null-MX), disposable-domain, role-account, free-provider and typo checks. Does not perform SMTP/mailbox…
  • GET /api/domain-trust $0.012 via Rooms
    Check whether a domain or email address is trustworthy before you contact it, sign it up, or trust it. Returns a trusted/caution/high_risk/unknown verdict with reasons, based on DNS and mail health (MX, SPF, DMARC), domain age and registra…

Automated check

Not checked yet. Checks run in the background.