Discover / api.paywallwatch.com

api.paywallwatch.com

■ Challenge detected

Use when an agent has an email address from a form, a scrape or a CRM and must decide whether it is worth sending to. Screens the address: syntax, DNS mail exchanger, disposable domain, role account, free provider and common typos. It does not verify that the mailbox exists. A DNS failure answers 503 and is not charged.

Listed price
$0.003
Challenge detected
1 of the last check
Median response
923 ms
Last checked
18 Oct, 00:27 UTC
In our index since
18 Oct 2026

Endpoint

curl -i https://api.paywallwatch.com/v1/email/verify
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.
1 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.

  • GEThttps://api.paywallwatch.com/v1/email/verify$0.003Use when an agent has an email address from a form, a scrape or a CRM and must decide whether it is worth sending to. Screens the address: syntax, DNS mail exchanger, disposable domain, role account, free provider and common typos. It does not verify that the mailbox exists. A DNS failure answers 503 and is not charged.

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

Showing 1 of 1 listed endpoints.

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

Recent checks

18 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.18 Oct 2026
All 1 checks
When (UTC)ResultHTTPResponse
18 Oct, 00:27 UTCChallenge detected402923ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 18 Oct, 00:27 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for api.paywallwatch.com?

Its listed price is $0.003.

What payment terms does api.paywallwatch.com advertise?

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

Where is api.paywallwatch.com listed?

In x402 Bazaar. Superstables first indexed it on 18 Oct 2026.

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