app.heinrichstech.com

Route probed: GET https://app.heinrichstech.com/v1/cdp/echo
Category: survive:payments/rails (tags: payments, test-endpoint, dev-utils, llm, token-analytics, wallet) · Status: listing listed, probe active · Listing: 0.001 USD, 4 payers / 5 calls (30d, Bazaar) · Listed in: agentic-market, cdp-bazaar
Last probe: 2026-10-23T14:06:39Z (3 h ago) · Recent valid 402: 2/2 · p50 1930 ms
probe-only: no paid test-buys yet. No index until 3 paid buys on 3 different days.

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Paid test-buys

None yet.

402 challenge checks (since 2026-10-23T14:06:39Z)

1 valid 402s checked: terms consistent 0, Base USDC offered 1, price matches listing 1 (differs 0), payTo changed vs previous probe 0.

Unpaid probes (newest first, up to 200; raw receipts are kept 7 days, then in the archive)

Receipt	UTC time	Method	Status	Valid 402	ms	Listed amount (atomic)	Quoted amount (atomic)	Quoted payTo	Header bytes	Response sha256	Signed	Route	Checks
f5ce6952af2cd0102ed6	2026-10-23T14:06:39Z	GET	402	yes	1930	1000	1000	0xDa2F35d2…	4360	391f131647e6c665	per-receipt	primary	option_amount_not_integer · Base USDC
91285fe2c40a14fee941	2026-10-23T12:43:01Z	GET	402	yes	280	1000	1000	0xDa2F35d2…	4360	5e3a95271a1e0b45	snapshot	primary

Other listed routes

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 Facilitator + Bazaar discovery loop. (cdp-bazaar)
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, name servers, status flags, plus the raw w (cdp-bazaar)
https://app.heinrichstech.com/v1/cdp/pii-redact BitBooth PII Redact: pay 0.008 USDC, strip emails, phones, SSNs, credit cards, IPv4 addresses, and hex-looking secrets from a text blob before passing it to an (cdp-bazaar)
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 scheme. Supports stripe, github, vercel, cdp (cdp-bazaar)
https://app.heinrichstech.com/v1/cdp/regex-test BitBooth Regex Test: pay 0.005 USDC, safely compile and run a regex against a corpus. Returns structured matches with capture groups, indices, and lengths. JS e (cdp-bazaar)
POST https://app.heinrichstech.com/v1/cdp/dns BitBooth DNS: pay 0.002 USDC, get DNS records (A, AAAA, MX, TXT, NS, CNAME, SOA, SRV, CAA) for any hostname. Built on Node's built-in resolver with a 5s timeout (agentic-market)
POST https://app.heinrichstech.com/v1/cdp/faker BitBooth Faker: pay 0.001 USDC, get structured synthetic data on demand. Pass a template like { name: "person.fullName", email: "internet.email" } and a count, (agentic-market)
POST https://app.heinrichstech.com/v1/cdp/sitemap BitBooth Sitemap: pay 0.005 USDC, hand in a domain, get back the canonical site URL list discovered via robots.txt + sitemap.xml + sitemapindex chain. Returns a (agentic-market)
POST https://app.heinrichstech.com/v1/cdp/web-diff BitBooth Web Diff: pay 0.08 USDC, render any URL with full Playwright JS rendering, and receive both the current markdown snapshot AND a structured diff against (agentic-market)
POST https://app.heinrichstech.com/v1/cdp/jwt-verify BitBooth JWT Verify: pay 0.001 USDC, verify a JWT signature + canonical claims (iss / aud / exp / nbf) against an inline publicKey (PEM) or sharedSecret. Suppor (agentic-market)
POST https://app.heinrichstech.com/v1/cdp/render-pro BitBooth render-pro: full Playwright JS rendering + Readability extraction. Pay 0.05 USDC, get clean markdown back from any URL including SPAs and JS-heavy site (agentic-market)
POST https://app.heinrichstech.com/v1/cdp/json-repair BitBooth JSON Repair: take any almost-JSON string (LLM tool output, broken API response, etc.), fix the common errors (trailing commas, single quotes, unquoted (agentic-market)
POST https://app.heinrichstech.com/v1/cdp/portfolio-scan BitBooth Portfolio Scan: pay 0.005 USDC, hand in 1..5 EVM addresses, get back per-address native ETH + USDC holdings on Base mainnet plus a totals rollup. Built (agentic-market)
POST https://app.heinrichstech.com/v1/cdp/chain/erc20-balance ERC-20 token balance for any wallet — USDC, USDT, DAI, or any token contract — via balanceOf eth_call, with decimals applied. Ethereum or Base mainnet. Pay 0.00 (agentic-market)

Seller? Reply or dispute. Amounts are in the asset's atomic units (USDC: 6 decimals).