Discover / x402-tollbooth.onrender.com

x402-tollbooth.onrender.com

□ No challenge detected

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 verification.

x402
Base
USDC

Listed price: $0.005
Challenge detected: 0 of the last check
Last checked: 14 Oct, 21:21 UTC
In our index since: 14 Oct 2026

Endpoint

curl -i https://x402-tollbooth.onrender.com/api/verify
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/x402-tollbooth.onrender.com

Recent checks

14 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.14 Oct 2026

All 1 checks

When (UTC)	Result	HTTP	Response
14 Oct, 21:21 UTC	No challenge detected	405	144ms

Questions

Did our last probe detect a payment challenge?

No. At our last probe on 14 Oct, 21:21 UTC, we detected no payment challenge.

What price is recorded for x402-tollbooth.onrender.com?

Its listed price is $0.005.

What payment terms does x402-tollbooth.onrender.com advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is x402-tollbooth.onrender.com listed?

In x402 Bazaar. Superstables first indexed it on 14 Oct 2026.

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