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 9 checks
Last checked: 17 Oct, 09:26 UTC
In our index since: 26 Sept 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.

2 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://x402-tollbooth.onrender.com/api

GET/domain-trust$0.01Check 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 registrar (RDAP), and disposable, free-provider and typo-lookalike flags. Accepts a domain, URL or email address.
POST/verify$0.005Check 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.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 2 of 2 listed endpoints.

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

Recent checks

4 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.17 Oct 2026

All 9 checks

When (UTC)	Result	HTTP	Response
17 Oct, 09:26 UTC	No challenge detected	405	1171ms
16 Oct, 08:13 UTC	No challenge detected	405	248ms
14 Oct, 19:26 UTC	No challenge detected	405	342ms
12 Oct, 22:31 UTC	No challenge detected	405	306ms
11 Oct, 00:15 UTC	No challenge detected	405	126ms
9 Oct, 15:32 UTC	No challenge detected	405	320ms
8 Oct, 09:33 UTC	No challenge detected	405	155ms
7 Oct, 03:32 UTC	No challenge detected	405	248ms
4 Oct, 17:05 UTC	No challenge detected	405	245ms

Questions

Did our last probe detect a payment challenge?

No. At our last probe on 17 Oct, 09:26 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 26 Sept 2026.

Something wrong on this page? Tell us.