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app.heinrichstech.com

BitBooth echo endpoint — pays a tiny USDC fee, returns a JSON echo. Reference implementation of the x402 + CDP Facilitator + Bazaar discovery loop.

Visit app.heinrichstech.com

Host	app.heinrichstech.com
Price	$0.001–$0.01 per call
Network	Base
Paid endpoints listed	3
Calls, last 30 days*	7
Most unique payers on one endpoint (30 days)*	4
Last paid call*	2026-10-17

* From the public x402 Bazaar index (snapshot 2026-10-18T04:07Z); reported by the facilitator, not measured by us.

Endpoints

URL	Method	Price
`https://app.heinrichstech.com/v1/cdp/echo` BitBooth echo endpoint — pays a tiny USDC fee, returns a JSON echo. Reference implementation of the x402 + CDP…	POST	$0.001
`https://app.heinrichstech.com/v1/cdp/whois` BitBooth Whois: pay 0.01 USDC, get the parsed whois record for any domain — registrar, creation/updated/expiry dates,…	POST	$0.01
`https://app.heinrichstech.com/v1/cdp/webhook-sig-verify` BitBooth Webhook Signature Verify: pay 0.005 USDC, verify a webhook signature against the provider's canonical HMAC…	POST	$0.005

Source: x402 Bazaar discovery API (Coinbase CDP) · Licence: Public discovery metadata; descriptions by each provider. Listed in x402 pay-per-call APIs. We list tools; we do not test, rate or endorse them.

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